{
    "root": {
      "Analytical Method": [


        {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6272",
        "Identifier": "***RENAMED_4500NC",
        "Context": "APHA_SM18ED",
        "Name": "_4500NC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-08-25T21:04:06 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1602",
        "Identifier": "00-01",
        "Context": "USEPA",
        "Name": "Gross Alpha and Beta Activity in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-03-21T15:03:41 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1603",
        "Identifier": "00-02",
        "Context": "USEPA",
        "Name": "Gross Alpha Activity in Drinking Water by Coprecipitation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1604",
        "Identifier": "00-03",
        "Context": "USEPA",
        "Name": "Lead-210 and Polonium-210 in Dried Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1605",
        "Identifier": "00-04",
        "Context": "USEPA",
        "Name": "Plutonium, Thorium & Uranium in Air Filters",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1606",
        "Identifier": "00-05",
        "Context": "USEPA",
        "Name": "Thorium and Uranium in Ashed Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1607",
        "Identifier": "00-06",
        "Context": "USEPA",
        "Name": "Thorium and Uranium in Ashed Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1608",
        "Identifier": "00-07",
        "Context": "USEPA",
        "Name": "Thorium and Uranium in Water Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1609",
        "Identifier": "00-09",
        "Context": "USEPA",
        "Name": "Plutonium and Uranium in Milk",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6256",
        "Identifier": "00048",
        "Context": "USDOI\USGS",
        "Name": "Nutrients, wf, color, DA",
        "Description": "Nutrients in filtered water, colorimetric, by discrete analyzer",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-04-17T20:27:29 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6257",
        "Identifier": "00049",
        "Context": "USDOI\USGS",
        "Name": "Nutrients, wf, NaR, colorimetric",
        "Description": "Nutrients in filtered water by enzymatic reductase colorimetry by discrete analyzer",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-04-17T20:27:29 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1610",
        "Identifier": "0010(B)",
        "Context": "USEPA",
        "Name": "0010 B ~ Total Chromatographable Organic Material",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1611",
        "Identifier": "0010(BT)",
        "Context": "USEPA",
        "Name": "0010 BT ~ Tritium in Biological Tissue",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1612",
        "Identifier": "0010(W)",
        "Context": "USEPA",
        "Name": "0010 W ~ Tritium in Water",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1613",
        "Identifier": "0011-0",
        "Context": "USEPA",
        "Name": "0011 0 ~ Sampling for Formaldehyde Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1614",
        "Identifier": "0011A",
        "Context": "USEPA",
        "Name": "0011 A ~ Analysis of Aldehydes\Ketones by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6258",
        "Identifier": "00127",
        "Context": "USDOI\USGS",
        "Name": "PIC",
        "Description": "Carbon, inorganic, suspended (Total Particulate Inorganic Carbon (PIC))",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-04-17T20:27:29 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1615",
        "Identifier": "002(A)",
        "Context": "USEPA",
        "Name": "002 A ~ Radon-222 in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1616",
        "Identifier": "002(W)",
        "Context": "USEPA",
        "Name": "002 W ~ Radon-222 in Water",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1617",
        "Identifier": "0023A",
        "Context": "USEPA",
        "Name": "0023 A ~ Sampling for PCDD and PCDF Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1618",
        "Identifier": "004(A)",
        "Context": "USEPA",
        "Name": "004 A ~ Radium-226 and Radium-228 in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1619",
        "Identifier": "004(S)",
        "Context": "USEPA",
        "Name": "004 S ~ Radium-226 and Radium-228 in Soil",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1620",
        "Identifier": "004(W)",
        "Context": "USEPA",
        "Name": "004 W ~ Radium-226 and Radium-228 in Water",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1621",
        "Identifier": "005(A)",
        "Context": "USEPA",
        "Name": "005 A ~ Plutonium, Uranium and Thorium in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1622",
        "Identifier": "005(BT)",
        "Context": "USEPA",
        "Name": "005 BT ~ Plutonium, Uranium and Thorium in Tissue",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1623",
        "Identifier": "005(S)",
        "Context": "USEPA",
        "Name": "005 S ~ Plutonium, Uranium and Thorium in Soil",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1624",
        "Identifier": "005(W)",
        "Context": "USEPA",
        "Name": "005 W ~ Plutonium, Uranium and Thorium in Water",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1625",
        "Identifier": "008(BT)",
        "Context": "USEPA",
        "Name": "008 BT ~ Strontium-89 and Strontium-90 in Tissue",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1626",
        "Identifier": "008(S)",
        "Context": "USEPA",
        "Name": "008 S ~ Strontium-89 and Strontium-90 in Soil",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1627",
        "Identifier": "008(V)",
        "Context": "USEPA",
        "Name": "008 V ~ Strontium-89 and Strontium-90 in Plants",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1628",
        "Identifier": "008(W)",
        "Context": "USEPA",
        "Name": "008 W ~ Strontium-89 and Strontium-90 in Water",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1629",
        "Identifier": "1",
        "Context": "USEPA",
        "Name": "Beta Activity in Airborne Particulates",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1630",
        "Identifier": "10",
        "Context": "USEPA",
        "Name": "Carbon Monoxide Emissions in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5260",
        "Identifier": "10-107-04-1-A",
        "Context": "LACHAT",
        "Name": "10-107-04-1 A ~ Determination of Nitrate\Nitrite in Surface and Wastewaters by Flow Injection Analysis",
        "Description": "http:\\www.uvm.edu\bwrl\lab_docs\protocols\Nitrate_water_lachat.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-05-20T09:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3227",
        "Identifier": "10-107-04-1-C",
        "Context": "LACHAT",
        "Name": "10-107-04-1 C ~ Nitrate and  Nitrite  Cadmium reduction method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-09-19T18:32:41 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5333",
        "Identifier": "10-107-04-1-D",
        "Context": "LACHAT",
        "Name": "10-107-04-1 D ~ Nitrate and Nitrite - Cadmium reduction method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-02-05T08:36:20 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5261",
        "Identifier": "10-107-04-1-J",
        "Context": "LACHAT",
        "Name": "10-107-04-1 J ~ Ultra Low Flow Methods",
        "Description": "http:\\www.lachatinstruments.com\download\Ultra-Low-Flow-Datapack_9-09.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-05-20T09:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5265",
        "Identifier": "10-107-04-1-O",
        "Context": "LACHAT",
        "Name": "10-107-04-1 O ~ Nitrate and Nitrite Cadmium Reduction Method (Sulfanilamide\NED)",
        "Description": "URL: http:\\www.lachatinstruments.com\download\LL022-Rev-7.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-06-17T15:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5277",
        "Identifier": "10-107-04-3-P",
        "Context": "LACHAT",
        "Name": "10-107-04-3 P ~ Total Nitrogen by In-Line UV\Persulfate Digestion and Oxidation with Flow Injection Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-10-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5302",
        "Identifier": "10-107-04-4-A",
        "Context": "LACHAT",
        "Name": "10-107-04-4 A ~ Total Nitrogen; manual alkaline persulfate digestion; low-flow method. Cadmium reduction. Sulfanilamide\NED 520nm.",
        "Description": "http:\\www.lachatinstruments.com\download\LL022_Methods-List_Rev%206.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-01-15T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5281",
        "Identifier": "10-107-04-4-B",
        "Context": "LACHAT",
        "Name": "10-107-04-4 B ~ Total Nitrogen using Persulfate Block Digestion and Cadmium Reduction",
        "Description": "http:\\www.lachatinstruments.com\download\LL022_Methods-List_Rev%206.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-11-18T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6063",
        "Identifier": "10-107-04-6-A",
        "Context": "LACHAT",
        "Name": "10-107-04-6 A ~ LACHAT; Sulfanilamide\NED UV Nitrate Reduction; 540 nm",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2025-04-28T15:22:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "763092",
        "Identifier": "10-107-06-1-B",
        "Context": "LACHAT",
        "Name": "10-107-06-1 B ~ Alkaline Phenol‐based method; 0.2% H2SO4 preserved samples",
        "Description": "This method covers the determination of ammonia in drinking, ground,surface, and saline waters, domestic and industrial wastes. Determination of ammonia nitrogen by semi-automated colorimetry. https:\\www.hach.com\asset-get.download.jsa?id=32128559557",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-10-23T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3229",
        "Identifier": "10-107-06-1-J",
        "Context": "LACHAT",
        "Name": "10-107-06-1 J ~ Ammonia- Alkaline phenol-based method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-09-19T18:32:41 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5275",
        "Identifier": "10-107-06-1-K",
        "Context": "LACHAT",
        "Name": "10-107-06-1 K ~ Ammonia - Alkaline Phenol‐based method; Low‐flow method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-10-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5334",
        "Identifier": "10-107-06-2-A",
        "Context": "LACHAT",
        "Name": "10-107-06-2 A ~ Ammonia - Sodium salicylate-based method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-02-05T08:36:20 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5273",
        "Identifier": "10-107-06-2-B",
        "Context": "LACHAT",
        "Name": "10-107-06-2 B ~ Ammonia - Sodium Salicylate-based method",
        "Description": "URL: http:\\www.lachatinstruments.com\download\LL022-Rev-7.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-08-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3228",
        "Identifier": "10-107-06-2-E",
        "Context": "LACHAT",
        "Name": "10-107-06-2 E ~ Kjeldahl nitrogen- Mercury catalyst",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-09-19T18:32:41 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5284",
        "Identifier": "10-107-06-2-H",
        "Context": "LACHAT",
        "Name": "10-107-06-2 H ~ Kjeldahl Nitrogen Methods (TKN) for Automated Ion Analyzers",
        "Description": "http:\\www.lachatinstruments.com\download\LL022_Methods-List_Rev%206.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-12-03T10:36:54 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5266",
        "Identifier": "10-107-06-2-M",
        "Context": "LACHAT",
        "Name": "10-107-06-2 M ~ Kjeldahl Nitrogen with Copper Catalyst",
        "Description": "URL: http:\\www.lachatinstruments.com\download\LL022-Rev-7.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-06-17T15:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5269",
        "Identifier": "10-107-06-2-O",
        "Context": "LACHAT",
        "Name": "10-107-06-2 O ~ Ammonia - Sodium salicylate-based method",
        "Description": "URL: (page 19 on pdf): http:\\www.lachatinstruments.com\download\LL022-Rev-7.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-06-19T07:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5282",
        "Identifier": "10-107-06-3-D",
        "Context": "LACHAT",
        "Name": "10-107-06-3 D ~ Ammonia - Automated Colorimetric (Sodium Salycilate-based method)",
        "Description": "http:\\www.lachatinstruments.com\download\LL022_Methods-List_Rev%206.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-12-03T10:16:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3235",
        "Identifier": "10-109-12-2-A",
        "Context": "LACHAT",
        "Name": "10-109-12-2 A ~ Fluoride in Water and Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-09-24T13:34:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "795375",
        "Identifier": "10-115-01-1-A",
        "Context": "LACHAT",
        "Name": "10-115-01-1 A ~ LACHAT; Determination of Orthophosphate in Waters by Flow Injection Analysis (Low Flow Method)",
        "Description": "0.01 to 2.0 mg P L-1. Total P (method 10-115-01-1-F) 3 to 200 ug P L-1 (pre-digested using persulfate digestion method)",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-06-27T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3230",
        "Identifier": "10-115-01-1-B",
        "Context": "LACHAT",
        "Name": "10-115-01-1 B ~ LACHAT; Orthophosphate- Molybdate based method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-09-20T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3231",
        "Identifier": "10-115-01-1-F",
        "Context": "LACHAT",
        "Name": "10-115-01-1 F ~ LACHAT; Total Phosphorus- Manual persulfate digest",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-09-20T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5268",
        "Identifier": "10-115-01-1-O",
        "Context": "LACHAT",
        "Name": "10-115-01-1 O ~ LACHAT; Orthophosphate - Molybdate-based method",
        "Description": "URL: (page 48 on pdf): http:\\www.lachatinstruments.com\download\LL022-Rev-7.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-06-20T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5267",
        "Identifier": "10-115-01-2-B",
        "Context": "LACHAT",
        "Name": "10-115-01-2 B ~ LACHAT; Kjeldahl Phosphorus with Copper Catalyst",
        "Description": "URL: http:\\www.lachatinstruments.com\download\LL022-Rev-7.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-06-18T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5283",
        "Identifier": "10-115-01-4-B",
        "Context": "LACHAT",
        "Name": "10-115-01-4 B ~ LACHAT; Total Phosphorus by Block Digestion and Flow Injection Analysis (Molybdate-based method)",
        "Description": "http:\\www.lachatinstruments.com\download\LL022_Methods-List_Rev%206.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-12-04T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3232",
        "Identifier": "10-117-07-1-A",
        "Context": "LACHAT",
        "Name": "10-117-07-1 A ~ LACHAT; Chloride Low-flow method  follows standard methods (4500-CI-G)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-09-20T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3233",
        "Identifier": "10-117-07-1-B",
        "Context": "LACHAT",
        "Name": "10-117-07-1 B ~ LACHAT; Chloride Low-flow method  ISO (15682)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-09-20T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3234",
        "Identifier": "10-204-00-1-X",
        "Context": "LACHAT",
        "Name": "10-204-00-1 X ~ LACHAT; Cyanide MicroDIST® method; 0.25 M NaOH matrix following digestion",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-09-20T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "824845",
        "Identifier": "10-3.3",
        "Context": "ASA(2ND ED.)",
        "Name": "Specific conductance in soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-05-17T16:26:14 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5262",
        "Identifier": "10-308-00-1-A",
        "Context": "LACHAT",
        "Name": "10-308-00-1 A ~ LACHAT; Determination of Color in Water",
        "Description": "http:\\www.lachatinstruments.com\download\LL022Rev5.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-05-21T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3236",
        "Identifier": "10-510-00-1-A",
        "Context": "LACHAT",
        "Name": "10-510-00-1 A ~ LACHAT; Determination of inorganic anions in wastes and solid extracts (EPA 300.0) Revision 2008",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-09-25T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6061",
        "Identifier": "10-510-00-1-E",
        "Context": "LACHAT",
        "Name": "10-510-00-1 E ~ LACHAT; Determination of Anions in Water by Ion Chromatography (EPA 300.0) Revision 2008",
        "Description": "https:\\lams.nelac-institute.org\TestMethodDetails?code=60008108",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2025-04-22T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3237",
        "Identifier": "10-511-00-1-A",
        "Context": "LACHAT",
        "Name": "10-511-00-1 A ~ LACHAT; Rapid anions method; multirange method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-09-24T13:34:09 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "115313",
        "Identifier": "100.1",
        "Context": "USEPA",
        "Name": "Analytical Method For Determination Of Asbestos Fibers In Water",
        "Description": "100.1 ~ EPA-NERL . Asbestos in Water by TEM",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5757\",
        "LastChangeDate": "2010-11-19T14:14:21 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3239",
        "Identifier": "100.2",
        "Context": "USEPA",
        "Name": "Chironomus tentans 10-d Survival and Growth test for sediments",
        "Description": "100.2 ~ EPA-NERL . Asbestos in Water by TEM",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5758\",
        "LastChangeDate": "2013-01-28T13:44:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "891",
        "Identifier": "1000",
        "Context": "NIOSH",
        "Name": "Allyl Chlorine by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "110086",
        "Identifier": "1000.0",
        "Context": "USEPA",
        "Name": "1000.0 ~ EPA; Fathead Minnow, PIMEPHALES PROMELAS, LARVAL SURVIVAL AND GROWTH TEST",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2010-12-28T16:28:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3002",
        "Identifier": "10001",
        "Context": "HACH",
        "Name": "Nitrogen, Ammonia, Electrode",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3003",
        "Identifier": "10002",
        "Context": "HACH",
        "Name": "Nitrogen, Ammonia, Electrode, Known Addition",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3004",
        "Identifier": "1001",
        "Context": "HACH",
        "Name": "Determination of Lead, for use in Lead and Copper Rule compliance monitoring",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "892",
        "Identifier": "1001",
        "Context": "NIOSH",
        "Name": "Methyl Chloride by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3005",
        "Identifier": "10018",
        "Context": "HACH",
        "Name": "Total and Fecal Coliforms, E. Coli, P\A",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5270",
        "Identifier": "10019",
        "Context": "HACH",
        "Name": "Nitrite, Diazotization Method, Low Range, Test N Tube",
        "Description": "URL: http:\\http:\\www.hach.com\asset-get.download.jsa?id=7639983742",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-06-19T07:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "893",
        "Identifier": "1002",
        "Context": "NIOSH",
        "Name": "beta-Chloroprene by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3225",
        "Identifier": "1002-8-2009",
        "Context": "USEPA",
        "Name": "Dissolved Oxygen (DO) Measurement by Optical Probe",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-07-17T17:15:41 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "110087",
        "Identifier": "1002.0**ret**use TEST METHOD 1002.0",
        "Context": "USEPA",
        "Name": "DO NOT USE***1002.0 ~ EPA; DAPHNID, CERIODAPHNIA DUBIA, SURVIVAL AND REPRODUCTION TEST",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-09-20T16:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743091",
        "Identifier": "10020",
        "Context": "HACH",
        "Name": "Nitrate, Chromotropic Acid Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-12-05T15:40:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "733480",
        "Identifier": "10021",
        "Context": "HACH",
        "Name": "Nitrogen, Total Inorganic by Titanium Trichloride Reduction Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-02-08T09:56:41 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3205",
        "Identifier": "10023",
        "Context": "HACH",
        "Name": "Ammonia Salicylate Method 0.02-2.50 mg\l",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-01-05T12:11:19 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3006",
        "Identifier": "10027",
        "Context": "HACH",
        "Name": "Fecal Coliforms, MPN (sludges)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3007",
        "Identifier": "10028",
        "Context": "HACH",
        "Name": "Fecal Coliforms, MPN (sludges)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3008",
        "Identifier": "10029",
        "Context": "HACH",
        "Name": "m-ColiBlue24 Method of the Determination of Total Coliforms and E. coli",
        "Description": "10029 ~ Hach Co. . E. coli by m-ColiBlue24 Broth Procedure for Membrane Filtration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5577\",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770793",
        "Identifier": "10029",
        "Context": "USDOI\USGS",
        "Name": "E. coli by m-ColiBlue24 Broth Procedure for Membrane Filtration",
        "Description": "Coliforms: Membrane Filtration (simultaneous detection) In: Hach Analytical Procedures. m-ColiBlue24 Broth Procedure for Membrane Filtration. Hach Product Literature #8433. Hach: Loveland, CO. Dec.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5577\",
        "LastChangeDate": "2019-06-26T12:14:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743088",
        "Identifier": "1002G",
        "Context": "APHA",
        "Name": "1002 G ~ Chlorophyll a, Monochromatic by Spectrometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-12-05T15:36:43 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "894",
        "Identifier": "1003",
        "Context": "NIOSH",
        "Name": "Halogenated Hydrocarbons by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3206",
        "Identifier": "10031",
        "Context": "HACH",
        "Name": "Ammonia Salicylate Method 0.4-50 mg\l",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-01-05T12:11:19 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "895",
        "Identifier": "1004",
        "Context": "NIOSH",
        "Name": "Dichloroethyl Ether by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5257",
        "Identifier": "1005",
        "Context": "TNRCC",
        "Name": "TOTAL PETROLEUM HYDROCARBONS TNRCC Method 1005 Revision 03",
        "Description": "http:\\www.tceq.state.tx.us\assets\public\compliance\compliance_support\qa\1005_final.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-03-28T08:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "896",
        "Identifier": "1005",
        "Context": "NIOSH",
        "Name": "Methylene Chloride by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "897",
        "Identifier": "1006",
        "Context": "NIOSH",
        "Name": "Fluorotrichloromethane by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "898",
        "Identifier": "1007",
        "Context": "NIOSH",
        "Name": "Vinyl Chloride by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5298",
        "Identifier": "10071",
        "Context": "HACH",
        "Name": "Persulfate Digestion Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-12-16T09:04:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3207",
        "Identifier": "10072",
        "Context": "HACH",
        "Name": "Nitrogen, Total Persulfate Digestion Method 20-100 mg\l",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-01-05T12:11:19 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "899",
        "Identifier": "1008",
        "Context": "NIOSH",
        "Name": "Ethylene Dibromide by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "900",
        "Identifier": "1009",
        "Context": "NIOSH",
        "Name": "Vinyl Bromide by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5908",
        "Identifier": "100P",
        "Context": "USEPA",
        "Name": "Determination of Organochlorine Pesticides by Gas Chromatography\Tandem Mass Spectrometry (GC\MS\MS)",
        "Description": "100P EPA ASB.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-01-25T11:46:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1631",
        "Identifier": "101",
        "Context": "USEPA",
        "Name": "Gaseous Mercury in Air by CVAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "901",
        "Identifier": "1010",
        "Context": "NIOSH",
        "Name": "Epichlorohydrin by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5539",
        "Identifier": "1010",
        "Context": "USEPA",
        "Name": "Flash Point",
        "Description": "https:\\www.epa.gov\hw-sw846\sw-846-test-method-1010a-test-methods-flash-point-pensky-martens-closed-cup-tester",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-03-31T13:15:20 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6074",
        "Identifier": "1010a",
        "Context": "USEPA",
        "Name": "FLASH POINT BY PENSKY-MARTENS CLOSED CUP TESTER",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\1010a.pdf",
        "LastChangeDate": "2026-03-13T19:43:47 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "902",
        "Identifier": "1011",
        "Context": "NIOSH",
        "Name": "Ethyl Bromide by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "903",
        "Identifier": "1012",
        "Context": "NIOSH",
        "Name": "Difluorodibromomethane by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3208",
        "Identifier": "10129",
        "Context": "HACH",
        "Name": "Total Organic Carbon",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-01-05T12:11:20 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "904",
        "Identifier": "1013",
        "Context": "NIOSH",
        "Name": "Propylene Dichloride by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "905",
        "Identifier": "1014",
        "Context": "NIOSH",
        "Name": "Methyl Iodide by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "906",
        "Identifier": "1015",
        "Context": "NIOSH",
        "Name": "Vinylidene Chloride by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6013",
        "Identifier": "10150 B",
        "Context": "APHA",
        "Name": "SM 10150 B ~ APHA, Spectrophotometric Determination of Chlorophyll A",
        "Description": "Determining Chlorophyll a in the Presence of Pheophytin a.  https:\\www.standardmethods.org\doi\10.2105\SMWW.2882.253",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-09-07T12:30:28 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "907",
        "Identifier": "1016",
        "Context": "NIOSH",
        "Name": "1,1,2-Tetrachloro-2,2-Difluoroethane",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "908",
        "Identifier": "1017",
        "Context": "NIOSH",
        "Name": "Trifluorobromomethane by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "909",
        "Identifier": "1018",
        "Context": "NIOSH",
        "Name": "Organics by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "910",
        "Identifier": "1019",
        "Context": "NIOSH",
        "Name": "1,1,2,2-Tetrachloroethane by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1632",
        "Identifier": "101A",
        "Context": "USEPA",
        "Name": "101 A ~ Gaseous Mercury from Sewage\Sludge Incinerators",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1633",
        "Identifier": "102",
        "Context": "USEPA",
        "Name": "Mercury Emissions - Hydrogen Streams",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "911",
        "Identifier": "1020",
        "Context": "NIOSH",
        "Name": "1,1,2-Trichloro-1,2,2-Trifluoroethane",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "169",
        "Identifier": "10200-F",
        "Context": "APHA",
        "Name": "10200 F ~ Phytoplankton Counting Techniques",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "170",
        "Identifier": "10200-G",
        "Context": "APHA",
        "Name": "10200 G ~ Zooplankton Counting Techniques",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6014",
        "Identifier": "10200-H",
        "Context": "APHA_SM21ED",
        "Name": "10200 H ~ Chlorophyll a-b-c Determination",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "171",
        "Identifier": "10200-H",
        "Context": "APHA",
        "Name": "10200 H ~ Chlorophyll a-b-c Determination",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "172",
        "Identifier": "10200-I",
        "Context": "APHA",
        "Name": "10200 I ~ Determination of Biomass (Standing Crop)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "173",
        "Identifier": "10200-J",
        "Context": "APHA",
        "Name": "10200 J ~ Metabolic Rate Measurements",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6273",
        "Identifier": "10200H",
        "Context": "APHA_SM18ED",
        "Name": "10200H",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-08-25T21:04:06 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3094",
        "Identifier": "10200H(2)",
        "Context": "APHA",
        "Name": "10200 H 2  ~ Chlorophyll a-b-c Determination by spectrophotometer",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-12-20T10:51:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3095",
        "Identifier": "10200H(3)",
        "Context": "APHA",
        "Name": "10200 H 3  ~ Chlorophyll a-b-c Determination by fluorometer",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-12-20T10:51:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3171",
        "Identifier": "10205",
        "Context": "HACH",
        "Name": "Ammonia Salicylate Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-11-13T16:25:42 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3175",
        "Identifier": "10206",
        "Context": "HACH",
        "Name": "Nitrate, Dimethylphenol Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-11-13T16:25:43 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3176",
        "Identifier": "10207",
        "Context": "HACH",
        "Name": "Nitrite, Diazotization Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-11-13T16:25:43 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3172",
        "Identifier": "10208",
        "Context": "HACH",
        "Name": "Nitrogen, Total Persulfate Digestion Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-11-13T16:25:42 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3173",
        "Identifier": "10209",
        "Context": "HACH",
        "Name": "Phosphorus, Reactive (Orthophosphate) Ascorbic Acid Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-11-13T16:25:42 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5552",
        "Identifier": "1020A",
        "Context": "USEPA",
        "Name": "1020 A ~ Ignitability – Flashpoint",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-05-25T15:47:42 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6054",
        "Identifier": "1020B",
        "Context": "USEPA",
        "Name": "1020 B ~ USEPA;  Flash Point by Setaflash (Small Scale) Closed-Cup Apparatus",
        "Description": "STANDARD TEST METHODS FOR FLASH POINT BY SETAFLASH (SMALL SCALE) CLOSED-CUP APPARATUS; https:\\19january2017snapshot.epa.gov\hw-sw846\sw-846-test-method-1020b-standard-test-methods-flash-point-setaflash-small-scale-closed-cup_.html",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2024-09-18T17:56:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3174",
        "Identifier": "10210",
        "Context": "HACH",
        "Name": "Phosphorus, Total Ascorbic Acid Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-11-13T16:25:42 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "121742",
        "Identifier": "10214",
        "Context": "HACH",
        "Name": "Phosphorus, Reactive (Orthophosphate) Molybdovanadate Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2011-03-16T18:52:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3170",
        "Identifier": "10215",
        "Context": "HACH",
        "Name": "Aluminum Chromazurol S Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-11-13T16:25:42 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3181",
        "Identifier": "10216",
        "Context": "HACH",
        "Name": "Lead, PAR Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-11-13T16:26:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3179",
        "Identifier": "10217",
        "Context": "HACH",
        "Name": "Cadmium, Cadion Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-11-13T16:25:43 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3177",
        "Identifier": "10218",
        "Context": "HACH",
        "Name": "Chromium, Hexavalent, 1,5-Diphenylcarbohydrazide Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-11-13T16:25:43 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3178",
        "Identifier": "10219",
        "Context": "HACH",
        "Name": "Chromium, Total, 1,5-Diphenylcarbohydrazide Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-11-13T16:25:43 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "912",
        "Identifier": "1022",
        "Context": "NIOSH",
        "Name": "Trichloroethylene by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3180",
        "Identifier": "10220",
        "Context": "HACH",
        "Name": "Nickel, Dimethylglyoxime Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-11-13T16:25:43 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5889",
        "Identifier": "10227",
        "Context": "HACH",
        "Name": "10227 ~ HACH, Turbidimetric Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-09-22T17:38:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5888",
        "Identifier": "10229",
        "Context": "HACH",
        "Name": "10229 ~ HACH,Phenanthroline Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-09-22T17:38:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5543",
        "Identifier": "10237",
        "Context": "HACH",
        "Name": "Determination of Nitrite Nitrogen by the Diazotization method, using TNTplus vials",
        "Description": "http:\\www.hach.com\asset-get.download.jsa?id=7639982519",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-04-13T15:00:41 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5891",
        "Identifier": "10238",
        "Context": "HACH",
        "Name": "10238 ~ HACH, Bathocuproine Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-09-22T18:48:37 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5887",
        "Identifier": "10239",
        "Context": "HACH",
        "Name": "10239 ~ HACH, Colorimetric Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-09-22T17:38:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "913",
        "Identifier": "1024",
        "Context": "NIOSH",
        "Name": "1,3 Butadiene by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5276",
        "Identifier": "10242",
        "Context": "HACH",
        "Name": "Nitrogen, Kjeldahl - Simplified Spectrophotometric Measurement of Total Kjeldahl Nitrogen in Water and Wastewater",
        "Description": "http:\\www.hach.com\asset-get.download.jsa?id=17043310572",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-10-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1634",
        "Identifier": "103",
        "Context": "USEPA",
        "Name": "Beryllium Screening in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6075",
        "Identifier": "1030",
        "Context": "USEPA",
        "Name": "IGNITABILITY OF SOLIDS",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\1030.pdf",
        "LastChangeDate": "2026-03-13T19:43:47 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "109650",
        "Identifier": "1030-E",
        "Context": "APHA_SM20ED",
        "Name": "1030 E ~ Anion-Cation Balance",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2010-12-28T10:56:41 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "174",
        "Identifier": "10300-C",
        "Context": "APHA",
        "Name": "10300 C ~ Periphyton Sample Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "175",
        "Identifier": "10300-D",
        "Context": "APHA",
        "Name": "10300 D ~ Periphyton Primary Productivity",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6250",
        "Identifier": "1030E",
        "Context": "APHA",
        "Name": "ANALYTICAL AND DATA QUALITY SYSTEMS: Checking Analyses’ Correctness",
        "Description": "The following procedures for checking analyses\" correctness apply specifically to water samples with relatively complete analyses [e.g., pH, conductivity, total dissolved solids (TDS), and major anionic and cationic constituents that indicate general water quality]",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-05-04T13:25:06 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "532557",
        "Identifier": "10360",
        "Context": "HACH",
        "Name": "Luminescence Measurement of Dissolved Oxygen in Water and Wastewater and for Use in the Determination of BOD5 and cBOD5",
        "Description": "This luminescence-based sensor procedure measures the light emission characteristics from a luminescence-based reaction that takes place at the sensor-water interface. A light emitting diode (LED) provides incident light required to excite the luminophore substrate. In the presence of dissolved oxygen the reaction is suppressed. The resulting dynamic lifetime of the excited luminophore is evaluated and equated to DO concentration.",
        "QualifierType": "",
        "URL": "http:\\www.hach.com\cms-portals\hach_com\cms\documents\pdf\Methods-Guidelines\Method-10360.pdf",
        "LastChangeDate": "2013-12-10T17:29:29 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1635",
        "Identifier": "104",
        "Context": "USEPA",
        "Name": "Beryllium in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "176",
        "Identifier": "10400-D",
        "Context": "APHA",
        "Name": "10400 D ~ Macrophyton Population Estimates",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "177",
        "Identifier": "10400-E",
        "Context": "APHA",
        "Name": "10400 E ~ Macrophyton Productivity",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1636",
        "Identifier": "105",
        "Context": "USEPA",
        "Name": "Mercury in Sewage Sludge",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "178",
        "Identifier": "10500-C",
        "Context": "APHA",
        "Name": "10500 C ~ Benthic Macroinvertebrate Sample Processing and Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1637",
        "Identifier": "106",
        "Context": "USEPA",
        "Name": "Vinyl Chloride in Stack Gas",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1638",
        "Identifier": "107",
        "Context": "USEPA",
        "Name": "Vinyl Chloride - Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1639",
        "Identifier": "107A",
        "Context": "USEPA",
        "Name": "107 A ~ Vinyl Chloride - Solvent\Resin",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1640",
        "Identifier": "108",
        "Context": "USEPA",
        "Name": "Particulate and Gaseous Arsenic",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1641",
        "Identifier": "10A",
        "Context": "USEPA",
        "Name": "10 A ~ Carbon Monoxide Emissions in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5263",
        "Identifier": "10AU",
        "Context": "Turner Designs",
        "Name": "10 AU ~ Field fluorometer with fluorescence brightener PTSA400 for determining optical brightener",
        "Description": "http:\\www.turnerdesigns.com\t2\doc\manuals\998-0011.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-05-20T09:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1642",
        "Identifier": "10B",
        "Context": "USEPA",
        "Name": "10 B ~ Carbon Monoxide Emissions in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1643",
        "Identifier": "11",
        "Context": "USEPA",
        "Name": "Isotopic Analysis by Ge(Li) Detector",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1644",
        "Identifier": "110.1",
        "Context": "USEPA",
        "Name": "Color by Calculating ADMI Values",
        "Description": "110.1 ~ EPA-NERL . Color by Spectrophotometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5207\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1645",
        "Identifier": "110.2",
        "Context": "USEPA",
        "Name": "Color Analysis Using Platinum\Cobalt",
        "Description": "110.2 ~ EPA-NERL . Color by Spectrophotometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5208\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1646",
        "Identifier": "110.3",
        "Context": "USEPA",
        "Name": "Color by Spectrophotometric Analysis",
        "Description": "110.3 ~ EPA-NERL . Color by Spectrophotometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5209\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3009",
        "Identifier": "1103.1",
        "Context": "USEPA",
        "Name": "Escherichia coli in Water by Membrane Filtration Using membrane-Thermotolerant E. coli Agar (mTEC)",
        "Description": "https:\\www.nemi.gov\methods\method_summary\5575\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3191",
        "Identifier": "1103.1 (MODIFIED)",
        "Context": "USEPA",
        "Name": "Membrane filtration plating of E. coli on modified mTEC agar",
        "Description": "1103.1 (modified) ~ EPA-MICRO . Membrane filtration plating of E. coli on modified mTEC agar",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5575\",
        "LastChangeDate": "2010-01-15T14:04:06 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1648",
        "Identifier": "1104",
        "Context": "USEPA",
        "Name": "E. coli in Drinking Water\EC Medium with Mug Tub",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3010",
        "Identifier": "1106.1",
        "Context": "USEPA",
        "Name": "Enterococci in Water by Membrane Filtration Using membrane-Enterococcus-Esculin Iron Agar (mE-EIA)",
        "Description": "1106.1 ~ EPA-OW . Enterococci in water by MF using mE-EI Agar",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9793\",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1650",
        "Identifier": "111",
        "Context": "USEPA",
        "Name": "Polonium-210 Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1651",
        "Identifier": "114",
        "Context": "USEPA",
        "Name": "Radionuclide Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1652",
        "Identifier": "115",
        "Context": "USEPA",
        "Name": "Monitoring for Radon-222",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1653",
        "Identifier": "12 (ATM PB)",
        "Context": "USEPA",
        "Name": "Inorganic Lead Emissions in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1654",
        "Identifier": "12 (ISOTOPES)",
        "Context": "USEPA",
        "Name": "Isotopic Analysis by NaI(Tl) Detector",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5292",
        "Identifier": "120.1",
        "Context": "YSI",
        "Name": "Direct Measurement Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-12-16T09:04:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1655",
        "Identifier": "120.1",
        "Context": "USEPA",
        "Name": "Conductance",
        "Description": "120.1 ~ EPA-NERL . Conductance by Conductivity Meter",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5210\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1656",
        "Identifier": "120.1_M",
        "Context": "USEPA",
        "Name": "120.1 M ~ Conductivity in Industrial Waste",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "875",
        "Identifier": "120.6",
        "Context": "IL\SWSD",
        "Name": "Specific Conductance - Acid Deposition",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770818",
        "Identifier": "129-71W",
        "Context": "Technicon",
        "Name": "Fluoride in Water and Wastewater",
        "Description": "Industrial Method No. 129-71W, Fluoride in Water and Wastewater, Technicon Industrial Systems, Bran and Luebbe, 1972 (Technicon)",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-07-24T10:49:34 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1657",
        "Identifier": "13",
        "Context": "USEPA",
        "Name": "Krypton, Xenon and Tritiated Methane",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5751",
        "Identifier": "130***retired***use 130..0",
        "Context": "USDOC\NOAA",
        "Name": "DO NOT USE***Capillary gas chromatography analysis for organic contaminates in marine sediments.",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7169\",
        "LastChangeDate": "2021-10-04T13:56:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4711",
        "Identifier": "130.0",
        "Context": "USDOC\NOAA",
        "Name": "Capillary gas chromatography analysis for organic contaminates in marine sediments.",
        "Description": "130 ~ NOAA NST . Capillary gas chromatography analysis for organic contaminates in marine sediments.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7169\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4712",
        "Identifier": "130.01",
        "Context": "USDOC\NOAA",
        "Name": "Organic contaminates in marine animal tissues by GC-FPD",
        "Description": "130.01 ~ NOAA NST . Organic contaminates in marine animal tissues by GC-FPD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7170\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4713",
        "Identifier": "130.1",
        "Context": "USDOC\NOAA",
        "Name": "Organic contaminants in marine sediments by GC-ECD",
        "Description": "130.1 ~ NOAA NST . Organic contaminants in marine sediments by GC-ECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7171\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1658",
        "Identifier": "130.1",
        "Context": "USEPA",
        "Name": "Total Hardness",
        "Description": "130.1 ~ EPA-NERL . Total Hardness by Spectrophotometer",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5211\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4714",
        "Identifier": "130.11",
        "Context": "USDOC\NOAA",
        "Name": "Organic contaminants in marine animal tissues by GC-ECD",
        "Description": "130.11 ~ NOAA NST . Organic contaminants in marine animal tissues by GC-ECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7172\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4715",
        "Identifier": "130.2",
        "Context": "USDOC\NOAA",
        "Name": "Dioxins and Furans in marine sediments by GC-MS",
        "Description": "130.2 ~ NOAA NST . Dioxins and Furans in marine sediments by GC-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7173\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1659",
        "Identifier": "130.2",
        "Context": "USEPA",
        "Name": "Total Hardness",
        "Description": "130.2 ~ EPA-NERL . Total Hardness of Water by Titrimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4684\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4716",
        "Identifier": "130.21",
        "Context": "USDOC\NOAA",
        "Name": "Dioxins and Furans in marine bivalve tissues by GC-MS",
        "Description": "130.21 ~ NOAA NST . Dioxins and Furans in marine bivalve tissues by GC-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7174\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4717",
        "Identifier": "130.3",
        "Context": "USDOC\NOAA",
        "Name": "Organic contaminants in marine sediments by GC-MS",
        "Description": "130.3 ~ NOAA NST . Organic contaminants in marine sediments by GC-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7175\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4718",
        "Identifier": "130.31",
        "Context": "USDOC\NOAA",
        "Name": "Organic contaminants in marine animal tissues by GC-MS",
        "Description": "130.31 ~ NOAA NST . Organic contaminants in marine animal tissues by GC-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7176\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "914",
        "Identifier": "1300",
        "Context": "NIOSH",
        "Name": "Ketone I by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "915",
        "Identifier": "1301",
        "Context": "NIOSH",
        "Name": "Ketone II by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4719",
        "Identifier": "131",
        "Context": "USDOC\NOAA",
        "Name": "Trace mercury in marine sediments by CVAA",
        "Description": "131 ~ NOAA NST . Trace mercury in marine sediments by CVAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7177\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5752",
        "Identifier": "131.0",
        "Context": "USDOC\NOAA",
        "Name": "Trace mercury in marine sediments by CVAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4720",
        "Identifier": "131.01",
        "Context": "USDOC\NOAA",
        "Name": "Trace mercury in marine animal tissues by CVAA",
        "Description": "131.01 ~ NOAA NST . Trace mercury in marine animal tissues by CVAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7178\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6076",
        "Identifier": "1311",
        "Context": "USEPA",
        "Name": "TOXICITY CHARACTERISTIC LEACHING PROCEDURE",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\1311.pdf",
        "LastChangeDate": "2026-03-13T19:43:47 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6077",
        "Identifier": "1312",
        "Context": "USEPA",
        "Name": "SYNTHETIC PRECIPITATION LEACHING PROCEDURE",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\1312.pdf",
        "LastChangeDate": "2026-03-13T19:43:47 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4721",
        "Identifier": "132",
        "Context": "USDOC\NOAA",
        "Name": "Trace metals in marine sediment by neutron activation",
        "Description": "132 ~ NOAA NST . Trace metals in marine sediment by neutron activation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7179\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5753",
        "Identifier": "132.0",
        "Context": "USDOC\NOAA",
        "Name": "Trace metals in marine sediment by neutron activation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4722",
        "Identifier": "132.1",
        "Context": "USDOC\NOAA",
        "Name": "Trace metals in marine animal tissue by neutron activation",
        "Description": "132.1 ~ NOAA NST . Trace metals in marine animal tissue by neutron activation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7184\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4754",
        "Identifier": "135-00 (QUALITATIVE)",
        "Context": "USDOI\USGS",
        "Name": "Benthic Macroinvertebrate Sample Processing: Qualitative Visual Sort Method",
        "Description": "B-9135-00 (Qualitative) ~ USGS-NWQL . Benthic Macroinvertebrate Sample Processing: Qualitative Visual Sort Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9355\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4664",
        "Identifier": "1367-99",
        "Context": "ASTM",
        "Name": "Sediment Toxicity Test Using Leptocheirus plumulosus",
        "Description": "1367-99 ~ ASTM . Sediment Toxicity Test Using Leptocheirus plumulosus",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9328\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1660",
        "Identifier": "13A",
        "Context": "USEPA",
        "Name": "13 A ~ Total Fluoride Emissions in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1661",
        "Identifier": "13B",
        "Context": "USEPA",
        "Name": "13 B ~ Total Fluoride Emissions in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4723",
        "Identifier": "140",
        "Context": "USDOC\NOAA",
        "Name": "Trace metals in marine sediment by GFAA",
        "Description": "140 ~ NOAA NST . Trace metals in marine sediment by GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7180\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5754",
        "Identifier": "140.0",
        "Context": "USDOC\NOAA",
        "Name": "Trace metals in marine sediment by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4724",
        "Identifier": "140.1",
        "Context": "USDOC\NOAA",
        "Name": "Trace metals in marine animal tissues by GFAA",
        "Description": "140.1 ~ NOAA NST . Trace metals in marine animal tissues by GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7185\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1662",
        "Identifier": "140.1",
        "Context": "USEPA",
        "Name": "Odor in Water Using a Consistent Series",
        "Description": "https:\\www.nemi.gov\methods\method_summary\7185\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "916",
        "Identifier": "1400",
        "Context": "NIOSH",
        "Name": "Alcohols I by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "917",
        "Identifier": "1401",
        "Context": "NIOSH",
        "Name": "Alcohols II by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "918",
        "Identifier": "1402",
        "Context": "NIOSH",
        "Name": "Alcohols III by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "919",
        "Identifier": "1403",
        "Context": "NIOSH",
        "Name": "Alcohols IV by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "920",
        "Identifier": "1404",
        "Context": "NIOSH",
        "Name": "Methylcyclohexane by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "921",
        "Identifier": "1450",
        "Context": "NIOSH",
        "Name": "Esters I by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "922",
        "Identifier": "1451",
        "Context": "NIOSH",
        "Name": "Methyl Cellosolve Acetate by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "923",
        "Identifier": "1452",
        "Context": "NIOSH",
        "Name": "Ethyl Formate by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "924",
        "Identifier": "1453",
        "Context": "NIOSH",
        "Name": "Vinyl Acetate by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "925",
        "Identifier": "1454",
        "Context": "NIOSH",
        "Name": "Isopropyl Acetate by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "926",
        "Identifier": "1457",
        "Context": "NIOSH",
        "Name": "Ethyl Acetate by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "927",
        "Identifier": "1458",
        "Context": "NIOSH",
        "Name": "Methyl Acetate by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "928",
        "Identifier": "1459",
        "Context": "NIOSH",
        "Name": "Methyl Acrylate by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1663",
        "Identifier": "15",
        "Context": "USEPA",
        "Name": "Hydrogen Sulfide, Carbonyl Sulfide",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "744771",
        "Identifier": "15-2",
        "Context": "ASA(2ND ED.)",
        "Name": "Microbiological and Biochemical Properties",
        "Description": "Klute, Arnold, Ed. Methods of Soil Analysis Part 1:Physical and Mineralogical Methods. Book Series No 5. 2nd ed. Madison, Wisconsin: Soil Society of America, Inc. and American Society of Agronomy, Inc.. 1986: 385-398",
        "QualifierType": "",
        "URL": "http:\\www.cenicana.org\investigacion\seica\imagenes_libros\2010\methods_of_soil_analysis_part2.pdf",
        "LastChangeDate": "2018-04-20T13:48:19 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5274",
        "Identifier": "15-5",
        "Context": "ASA(2ND ED.)",
        "Name": "15-5 ~ Particle-Size Analysis",
        "Description": "https:\\www.agronomy.org\publications\aj\articles\103\6\1635, and American Society of Agronomy, Inc.. 1996. Pages 404-411.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-09-19T16:18:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1664",
        "Identifier": "150.1",
        "Context": "USEPA",
        "Name": "pH",
        "Description": "150.1 ~ EPA-NERL . pH in Water by Electrometric Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4685\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1665",
        "Identifier": "150.2",
        "Context": "USEPA",
        "Name": "pH by Continuous Monitoring",
        "Description": "150.2 ~ EPA-NERL . pH in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5760\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1666",
        "Identifier": "150.2_M",
        "Context": "USEPA",
        "Name": "150.2 M ~ pH in Industrial Waste Materials",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "876",
        "Identifier": "150.6",
        "Context": "IL\SWSD",
        "Name": "pH of Wet Deposition - pH Meter",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "929",
        "Identifier": "1500",
        "Context": "NIOSH",
        "Name": "Hydrocarbons, BP 36-126 C by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "930",
        "Identifier": "1501",
        "Context": "NIOSH",
        "Name": "Aromatic Hydrocarbons by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4725",
        "Identifier": "151",
        "Context": "USDOC\NOAA",
        "Name": "Trace metals in marine sediment by FAA",
        "Description": "151 ~ NOAA NST . Trace metals in marine sediment by FAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7181\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5755",
        "Identifier": "151.0",
        "Context": "USDOC\NOAA",
        "Name": "Trace metals in marine sediment by FAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4726",
        "Identifier": "151.1",
        "Context": "USDOC\NOAA",
        "Name": "Trace metals in marine animal tissue by FAA",
        "Description": "151.1 ~ NOAA NST . Trace metals in marine animal tissue by FAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7186\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4727",
        "Identifier": "155.1",
        "Context": "USDOC\NOAA",
        "Name": "Trace metals in marine animal tissues by X-ray fluorescence",
        "Description": "155.1 ~ NOAA NST . Trace metals in marine animal tissues by X-ray fluorescence",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7187\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "931",
        "Identifier": "1550",
        "Context": "NIOSH",
        "Name": "Naphthas by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "932",
        "Identifier": "1551",
        "Context": "NIOSH",
        "Name": "Turpentine by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1667",
        "Identifier": "16",
        "Context": "USEPA",
        "Name": "Sulfur Emissions from Stationary Sources",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4728",
        "Identifier": "160",
        "Context": "USDOC\NOAA",
        "Name": "Trace metals in marine sediments by X-ray fluorescence",
        "Description": "160 ~ NOAA NST . Trace metals in marine sediments by X-ray fluorescence",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7182\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5756",
        "Identifier": "160.0",
        "Context": "USDOC\NOAA",
        "Name": "Trace metals in marine sediments by X-ray fluorescence",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1668",
        "Identifier": "160.1",
        "Context": "USEPA",
        "Name": "Filterable Residue - TDS",
        "Description": "160.1 ~ EPA-NERL . Filterable Residue by Drying Oven",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5212\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1669",
        "Identifier": "160.1_M",
        "Context": "USEPA",
        "Name": "160.1 M ~ Total Dissolved Solids",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1670",
        "Identifier": "160.2",
        "Context": "USEPA",
        "Name": "Non-Filterable Residue - TSS",
        "Description": "160.2 ~ EPA-NERL . Non-filterable Residue by Drying Oven",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5213\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1671",
        "Identifier": "160.2_M",
        "Context": "USEPA",
        "Name": "160.2 M ~ Total Suspended Solids",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1672",
        "Identifier": "160.3",
        "Context": "USEPA",
        "Name": "Total Residue",
        "Description": "160.3 ~ EPA-NERL . Total Residue by Drying Oven",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5214\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1673",
        "Identifier": "160.4",
        "Context": "USEPA",
        "Name": "Volatile Residue",
        "Description": "160.4 ~ EPA-NERL . Volatile Residue by Muffle Furnace",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5215\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1674",
        "Identifier": "160.5",
        "Context": "USEPA",
        "Name": "Settleable Matter",
        "Description": "160.5 ~ EPA-NERL . Determination Settleable Matter in Water Using an Imhoff Cone",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7278\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "933",
        "Identifier": "1600",
        "Context": "NIOSH",
        "Name": "Carbon Disulfide by GC\FPD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3011",
        "Identifier": "1600",
        "Context": "USEPA",
        "Name": "Enterococci in Water by Membrane Filtration Using membrane-Enterococcus Indoxyl-B-D-Glucoside Agar (mEl)",
        "Description": "1600 ~ EPA-OW . Enterococci in water by membrane filtration using mEI Agar",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9790\",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "934",
        "Identifier": "1601",
        "Context": "NIOSH",
        "Name": "1,1-Dichloro-1-Nitroethane by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3012",
        "Identifier": "1601",
        "Context": "USEPA",
        "Name": "Male-specific (F+) and Somatic Coliphage in Water by Two-step Enrichment Procedure",
        "Description": "1601 ~ EPA-OW . Coliphage in water by two-step enrichment procedure",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9795\",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "935",
        "Identifier": "1602",
        "Context": "NIOSH",
        "Name": "Dioxane by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3013",
        "Identifier": "1602",
        "Context": "USEPA",
        "Name": "Male-specific (F+) and Somatic Coliphage in Water by Single Agar Layer (SAL) Procedure",
        "Description": "1602 ~ EPA-OW . Coliphage in water by single agar layer (SAL)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9794\",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3014",
        "Identifier": "1603",
        "Context": "USEPA",
        "Name": "Escherichia coli in Water by Membrane Filtration Using Modified membrane-Thermotolerant E. coli Agar (Modified mTEC)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "936",
        "Identifier": "1603",
        "Context": "NIOSH",
        "Name": "Acetic acid by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3015",
        "Identifier": "1604",
        "Context": "USEPA",
        "Name": "Total Coliforms and E. coli in Water by Membrane Filtration Using a Simultaneous Detection Technique (MI Medium)",
        "Description": "1604 ~ EPA-OW . Total Coliforms and E. coli in Drinking Water by Membrane Filtration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9314\",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "937",
        "Identifier": "1604",
        "Context": "NIOSH",
        "Name": "Acrylonitrile by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3016",
        "Identifier": "1605",
        "Context": "USEPA",
        "Name": "Aeromonas in Finished Water Membrane Filtration Using Ampicillin-Dextrin Agar with Vancomycin (ADA-V)",
        "Description": "1605 ~ EPA-OW . Aeromonas in Finished Water by Membrane Filtration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9313\",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "938",
        "Identifier": "1606",
        "Context": "NIOSH",
        "Name": "Acetonitrile",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "939",
        "Identifier": "1608",
        "Context": "NIOSH",
        "Name": "Glycidol by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "940",
        "Identifier": "1609",
        "Context": "NIOSH",
        "Name": "Tetrahydrofuran by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764681",
        "Identifier": "1609",
        "Context": "USEPA",
        "Name": "Enterococci in Water by TaqMan® Quantitative Polymerase Chain Reaction (qPCR)",
        "Description": "with Internal Amplification Control (IAC) Assay",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\cwa-methods\other-clean-water-act-test-methods-microbiological#file-485129",
        "LastChangeDate": "2019-04-18T13:48:15 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764682",
        "Identifier": "1609.1",
        "Context": "USEPA",
        "Name": "Enterococci in Water by TaqMan® Quantitative Polymerase Chain Reaction (qPCR)",
        "Description": "with Internal Amplification Control (IAC) Assay",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\cwa-methods\other-clean-water-act-test-methods-microbiological#file-485130",
        "LastChangeDate": "2019-04-18T13:48:15 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "941",
        "Identifier": "1610",
        "Context": "NIOSH",
        "Name": "Ethyl Ether by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764683",
        "Identifier": "1611",
        "Context": "USEPA",
        "Name": "Enterococci in Water by TaqMan® Quantitative Polymerase Chain Reaction (qPCR) Assay",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\cwa-methods\other-clean-water-act-test-methods-microbiological#file-485131",
        "LastChangeDate": "2019-04-18T13:48:15 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "942",
        "Identifier": "1611",
        "Context": "NIOSH",
        "Name": "Methylal by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764684",
        "Identifier": "1611.1",
        "Context": "USEPA",
        "Name": "Enterococci in Water by TaqMan® Quantitative Polymerase Chain Reaction (qPCR)",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\cwa-methods\other-clean-water-act-test-methods-microbiological#file-485132",
        "LastChangeDate": "2019-04-18T13:48:15 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764685",
        "Identifier": "1611.1B",
        "Context": "USEPA",
        "Name": "Bacteroidales in Water by TaqMan® Quantitative Polymerase Chain Reaction (qPCR) Assay",
        "Description": "Acceptability of the EPA qPCR Test at Your Beach (PDF)(4 pp, 36 K,December 2013,820-R-13-012) . Detection and Quantification Limits of EPA Enterococcus qPCR Methods (PDF)(7 pp, 62 K,December 2013,820-R-13-013)",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\cwa-methods\other-clean-water-act-test-methods-microbiological#file-485133",
        "LastChangeDate": "2019-04-18T13:48:15 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "943",
        "Identifier": "1612",
        "Context": "NIOSH",
        "Name": "Propylene Oxide by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4974",
        "Identifier": "1613",
        "Context": "USEPA",
        "Name": "Dioxins and Furans by HRGC\HRMS",
        "Description": "1613 ~ EPA-EAD . Dioxins and Furans by HRGC\HRMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5350\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "944",
        "Identifier": "1613",
        "Context": "NIOSH",
        "Name": "Pyridine by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5538",
        "Identifier": "1613(B)",
        "Context": "USEPA",
        "Name": "1613 B  ~ Polychlorinated Dioxins and Furans",
        "Description": "http:\\www.epa.gov\region3\1613.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-03-29T14:56:20 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1675",
        "Identifier": "1613(S)",
        "Context": "USEPA",
        "Name": "1613 S  ~ Dioxins and Furans - Solids",
        "Description": " in Solids",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1676",
        "Identifier": "1613(W)",
        "Context": "USEPA",
        "Name": "1613 W  ~ Dioxins and Furans - Water",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3197",
        "Identifier": "1614",
        "Context": "USEPA",
        "Name": "Brominated Diphenyl Ethers in Water Soil, Sediment and Tissue by HRGC\HRMS",
        "Description": "1614 ~ EPA-OW\OST . Brominated Diphenyl Ethers in Water, Soil, Sediment, and Tissue by HRGC\HRMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10575\",
        "LastChangeDate": "2010-04-23T14:16:22 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "945",
        "Identifier": "1614",
        "Context": "NIOSH",
        "Name": "Ethylene Oxide by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "946",
        "Identifier": "1615",
        "Context": "NIOSH",
        "Name": "Methyl tert-Butyl Ether by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "947",
        "Identifier": "1616",
        "Context": "NIOSH",
        "Name": "n-Butyl Glycidyl Ether by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "948",
        "Identifier": "1617",
        "Context": "NIOSH",
        "Name": "Phenyl Ether by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "949",
        "Identifier": "1618",
        "Context": "NIOSH",
        "Name": "Isopropyl Ether by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1677",
        "Identifier": "1618",
        "Context": "USEPA",
        "Name": "Pesticides and Herbicides",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "950",
        "Identifier": "1619",
        "Context": "NIOSH",
        "Name": "Phenyl Glycidyl Ether by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "951",
        "Identifier": "1620",
        "Context": "NIOSH",
        "Name": "Isopropyl Glycidyl Ether by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1678",
        "Identifier": "1620(A)",
        "Context": "USEPA",
        "Name": "1620 A  ~ Metals by Calibrated ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1679",
        "Identifier": "1620(B)",
        "Context": "USEPA",
        "Name": "1620 B  ~ Metals by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1680",
        "Identifier": "1620(C)",
        "Context": "USEPA",
        "Name": "1620 C  ~ Mercury - CVAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1681",
        "Identifier": "1620(D)",
        "Context": "USEPA",
        "Name": "1620 D  ~ Metals by Semi-quantitative ICP Screen",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6059",
        "Identifier": "1621",
        "Context": "USEPA",
        "Name": "1621 ~ USEPA; Determination of Adsorbable Organic Fluorine (AOF) in Aqueous Matrices by Combustion Ion Chromatography (CIC)",
        "Description": "https:\\www.epa.gov\system\files\documents\2024-01\method-1621-for-web-posting.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2025-04-19T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3017",
        "Identifier": "1622",
        "Context": "USEPA",
        "Name": "Crytosporidium in Water by Filtration\IMS\FA - April 2001 Update",
        "Description": "1622 ~ EPA-MICRO . Cryptosporidium by filtration\IMS\FA microscopy",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5615\",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3018",
        "Identifier": "1623",
        "Context": "USEPA",
        "Name": "Cryptosporidium and Giardia in Water by Filtration\IMS\FA - April 2001 Update",
        "Description": "1623 ~ EPA-MICRO . Cryptosporidium and giardia by filtration\IMS\FA microscopy",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5616\",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4975",
        "Identifier": "1624",
        "Context": "USEPA",
        "Name": "Volatile Organic Compounds by GC\MS",
        "Description": "1624 ~ EPA-EAD . Volatile Organic Compounds by GC\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5351\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1682",
        "Identifier": "1624(S)",
        "Context": "USEPA",
        "Name": "1624 S  ~ Volatiles by Isotope Dilution - Soil",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1683",
        "Identifier": "1624(W)",
        "Context": "USEPA",
        "Name": "1624 W  ~ Volatiles by Isotope Dilution - Water",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4976",
        "Identifier": "1625",
        "Context": "USEPA",
        "Name": "Semivolatiles - Base\Neutrals, Acid Extractable, GC\MS",
        "Description": "1625 ~ EPA-EAD . Semivolatiles - Base\Neutrals, Acid Extractable, GC\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4686\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1684",
        "Identifier": "1625(AW)",
        "Context": "USEPA",
        "Name": "1625 AW  ~ Semivolatiles - Acids, GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1685",
        "Identifier": "1625(BNW)",
        "Context": "USEPA",
        "Name": "1625 BNW  ~ Semivolatiles - Base\Neutrals, GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1686",
        "Identifier": "1625(S)",
        "Context": "USEPA",
        "Name": "1625 S  ~ Semivolatiles - Soil, GC\MS",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3198",
        "Identifier": "1625(T)",
        "Context": "USEPA",
        "Name": "1625 T  ~ Semivolatiles - Fish tissue, GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2010-05-19T11:32:24 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "873700",
        "Identifier": "1628",
        "Context": "USEPA",
        "Name": "PCB Congeners by Low-Resolution GC-MS. Polychlorinated biphenyls (PCBs) in wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-09-29T16:08:14 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3204",
        "Identifier": "1630",
        "Context": "USEPA",
        "Name": "Methyl Mercury in Water by Distillation, Aqueous Ethylation, Purge and Trap and CVAFS",
        "Description": "1630 ~ EPA-EAD . Methyl Mercury in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5352\",
        "LastChangeDate": "2011-12-20T11:46:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3243",
        "Identifier": "1630 Mod",
        "Context": "USEPA",
        "Name": "Methyl Mercury in Water by Distillation, Aqueous Ethylation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry (CVAFS)",
        "Description": "1630 MOD~ EPA-EAD . Methyl Mercury in Water, Method 1630: Methyl Mercury in Water by Distillation, Aqueous Ethylation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry as described in https:\\www.epa.gov\sites\default\files\2015-08\documents\method_1630_1998.pdf . And then modified as described in Guidance for Implementing the January 2001 Methylmercury Water Quality Criterion (EPA 823-R-10-001) which can be found at https:\\www.epa.gov\sites\default\files\2019-02\documents\guidance-implement-methylmercury-2001.pdf . Table C1 in Appendix C describes the technique for the modification involving digesting tissue with acid solution and neutralizing with acetate buffer.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5352\",
        "LastChangeDate": "2023-03-21T15:40:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1687",
        "Identifier": "1631",
        "Context": "USEPA",
        "Name": "Mercury in Water by Oxidation, Purge and Trap, and CVAFS",
        "Description": "1631 ~ EPA-EAD . Mercury in Water Using CVAFS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9628\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5553",
        "Identifier": "1631A",
        "Context": "USEPA",
        "Name": "1631 A ~ Appendix - Total Mercury in Tissue, Sludge, Sediment, and Soil by Acid Digestion and BrCl Oxidation",
        "Description": "http:\\www.tekran.com\files\EPA_1631_Appendix_for_Solids.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-07-01T16:05:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5554",
        "Identifier": "1631B",
        "Context": "USEPA",
        "Name": "1631B ~ Mercury in Water by Oxidation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry",
        "Description": "http:\\nepis.epa.gov\Exe\ZyNET.exe\40001EQ2.TXT?ZyActionD=ZyDocument&Client=EPA&Index=1995+Thru+1999&Docs=&Query=&Time=&EndTime=&SearchMethod=1&TocRestrict=n&Toc=&TocEntry=&QField=&QFieldYear=&QFieldMonth=&QFieldDay=&IntQFieldOp=0&ExtQFieldOp=0&XmlQuery=&File=D%3A%5Czyfiles%5CIndex%20Data%5C95thru99%5CTxt%5C00000022%5C40001EQ2.txt&User=ANONYMOUS&Password=anonymous&SortMethod=h%7C-&MaximumDocuments=1&FuzzyDegree=0&ImageQuality=r75g8\r75g8\x150y150g16\i425&Display=p%7Cf&DefSeekPage=x&SearchBack=ZyActionL&Back=ZyActionS&BackDesc=Results%20page&MaximumPages=1&ZyEntry=1&SeekPage=x&ZyPURL",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-07-11T15:01:23 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3216",
        "Identifier": "1631E",
        "Context": "USEPA",
        "Name": "1631E ~ Mercury in Water by Oxidation, Purge and Trap, and CVAFS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-05-31T12:16:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1688",
        "Identifier": "1632",
        "Context": "USEPA",
        "Name": "Inorganic Arsenic in Water by Hydride Generation Quartz Furnace",
        "Description": "1632 ~ EPA-EAD . Chemical Speciation of Arsenic in Water and Tissue",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5354\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "879701",
        "Identifier": "1633",
        "Context": "USEPA",
        "Name": "Analysis of Per- and Polyfluoroalkyl Substances (PFAS) in Aqueous, Solid, Biosolids, and Tissue Samples by LC-MS\MS",
        "Description": "1633 ~ EPA . https:\\www.epa.gov\system\files\documents\2021-09\method_1633_draft_aug-2021.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-11-07T15:54:36 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6060",
        "Identifier": "1633A",
        "Context": "USEPA",
        "Name": "1633A ~ USEPA; Revision A Analysis of Per- and Polyfluoroalkyl Substances (PFAS) in Aqueous, Solid, Biosolids, and Tissue Samples by LC-MS\MS",
        "Description": "https:\\www.epa.gov\system\files\documents\2024-12\method-1633a-december-5-2024-508-compliant.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2025-04-17T09:09:22 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1689",
        "Identifier": "1636",
        "Context": "USEPA",
        "Name": "Hexavalent Chromium in Ambient Water by Ion Chromatography",
        "Description": "1636 ~ EPA-EAD . Hexavalent Chromium by Ion Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5355\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1690",
        "Identifier": "1637",
        "Context": "USEPA",
        "Name": "Trace Elements in Water by Chelation Preconcentration and GFAA",
        "Description": "1637 ~ EPA-EAD . Determination of Trace Elements in Ambient Waters by Chelation and GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5356\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1691",
        "Identifier": "1638",
        "Context": "USEPA",
        "Name": "Trace Elements in Water by ICP\MS",
        "Description": "1638 ~ EPA-EAD . Determination of Trace Elements in Ambient Waters by ICPMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5357\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1692",
        "Identifier": "1639",
        "Context": "USEPA",
        "Name": "Trace Elements in Water by GFAA",
        "Description": "1639 ~ EPA-EAD . Trace Elements in Water by GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4687\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1693",
        "Identifier": "1640",
        "Context": "USEPA",
        "Name": "Trace Elements in Water by Chelation Preconcentration and ICP\MS",
        "Description": "1640 ~ EPA-EAD . Trace Elements in Ambient Waters by On-Line Chelation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5204\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764679",
        "Identifier": "1642",
        "Context": "USEPA",
        "Name": "Male-specific (F+) and Somatic Coliphage by Ultrafiltration (UF) and Single Agar Layer (SAL) Procedure",
        "Description": "in Recreational Waters and Wastewater . Procedure to concentrate, detect and enumerate male-specific (F+) and somatic coliphages in recreational waters and advanced treatment wastewater",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\cwa-methods\other-clean-water-act-test-methods-microbiological#file-485127",
        "LastChangeDate": "2019-04-18T13:48:15 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764680",
        "Identifier": "1643",
        "Context": "USEPA",
        "Name": "Male-specific (F+) and Somatic Coliphage by the Single Agar Layer (SAL) Procedure",
        "Description": "in Secondary (No Disinfection) Wastewater. Procedure to detect and enumerate male-specific (F+) and somatic coliphages in secondary treatment wastewater. Errata to Methods 1609.1 and 1611.1",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\cwa-methods\other-clean-water-act-test-methods-microbiological#file-485128",
        "LastChangeDate": "2019-04-18T13:48:15 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1694",
        "Identifier": "1648",
        "Context": "USEPA",
        "Name": "Organic Halides by Neutron Activation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1695",
        "Identifier": "1649",
        "Context": "USEPA",
        "Name": "Organic Halides by Coulometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1696",
        "Identifier": "1650",
        "Context": "USEPA",
        "Name": "Organic Halides in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1697",
        "Identifier": "1651",
        "Context": "USEPA",
        "Name": "Diesel Oil in Muds by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1698",
        "Identifier": "1652",
        "Context": "USEPA",
        "Name": "Oil and Grease",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1699",
        "Identifier": "1653",
        "Context": "USEPA",
        "Name": "Chlorinated Phenolics by GC\MS",
        "Description": "1653 ~ EPA-EAD . Chlorinated Phenolics associated with the pulp and paper industry wastewater by GCMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5319\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1700",
        "Identifier": "1654",
        "Context": "USEPA",
        "Name": "Polynuclear Aromatic Hydrocarbons in Oil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1701",
        "Identifier": "1656(ECD)",
        "Context": "USEPA",
        "Name": "1656 ECD  ~ Organohalide Pesticides in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1702",
        "Identifier": "1656(HSD)",
        "Context": "USEPA",
        "Name": "1656 HSD  ~ Organohalide Pesticides in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1703",
        "Identifier": "1657",
        "Context": "USEPA",
        "Name": "Organophosphorus Pesticides in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5871",
        "Identifier": "1657A",
        "Context": "USEPA",
        "Name": "Method A: Organo-Halide Pesticides in Wastewater, Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1704",
        "Identifier": "1658",
        "Context": "USEPA",
        "Name": "Phenoxy-Acid Herbicides in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1705",
        "Identifier": "1659",
        "Context": "USEPA",
        "Name": "Dazomet in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1706",
        "Identifier": "1660",
        "Context": "USEPA",
        "Name": "Pyrethrins and Pyrethroids in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1707",
        "Identifier": "1661",
        "Context": "USEPA",
        "Name": "Bromoxynil in Wastewater by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1708",
        "Identifier": "1662",
        "Context": "USEPA",
        "Name": "Extractable Material in Mud by SDS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1709",
        "Identifier": "1663",
        "Context": "USEPA",
        "Name": "Differentiation of Oil by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1710",
        "Identifier": "1664",
        "Context": "USEPA",
        "Name": "Extractable Material in Oil and Grease",
        "Description": "1664 ~ EPA-EAD . Oil and Grease and Non-polar Material Using Solvent Extraction and Gravimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4819\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3158",
        "Identifier": "1664A",
        "Context": "USEPA",
        "Name": "N-Hexane Extractable Material (HEM; Oil and Grease) and (SGT-HEM; Non-Polar Material) by Extraction and Gravimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2008-11-12T11:01:21 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764750",
        "Identifier": "1664B",
        "Context": "USEPA",
        "Name": "N-Hexane Extractable Material (HEM; Oil and Grease) and (SGT-HEM; Non-Polar Material) by Extraction and Gravimetry",
        "Description": "Source: https:\\www.epa.gov\sites\production\files\2015-08\documents\method_1664b_2010.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-05-24T13:22:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1711",
        "Identifier": "1665",
        "Context": "USEPA",
        "Name": "Semivolatiles by Isotope Dilution GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1712",
        "Identifier": "1666",
        "Context": "USEPA",
        "Name": "VOCs by Isotope Dilution GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1713",
        "Identifier": "1667",
        "Context": "USEPA",
        "Name": "Aldehydes by Derivatization and HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3160",
        "Identifier": "1668A",
        "Context": "USEPA",
        "Name": "1668 A ~ Chlorinated Biphenyl Congeners in Water, Soil, Sediment, and Tissue by HRGC\HRMS  single-lab QC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-02-12T11:47:47 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4978",
        "Identifier": "1668A (TISSUE)",
        "Context": "USEPA",
        "Name": "1668 A TISSUE  ~ Chlorinated Biphenyls in Tissue by HRGC\HRMS",
        "Description": "1668a (Tissue) ~ EPA-OGWDW\TSC . Chlorinated Biphenyls in Tissue by HRGC\HRMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7609\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4979",
        "Identifier": "1668A (WATER)",
        "Context": "USEPA",
        "Name": "1668 A WATER  ~ Chlorinated Biphenyls in Aqueous Samples by HRGC\HRMS",
        "Description": "1668a (Water) ~ EPA-OGWDW\TSC . Chlorinated Biphenyls in Aqueous Samples by HRGC\HRMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7610\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3161",
        "Identifier": "1668B",
        "Context": "USEPA",
        "Name": "1668 B ~ Chlorinated Biphenyl Congeners in Water, Soil, Sediment, Biosolids, and Tissue by HRGC\HRMS inter-lab QC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-03-10T12:03:54 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "797404",
        "Identifier": "1668C",
        "Context": "USEPA",
        "Name": "1668 C ~ Chlorinated Biphenyl Congeners in Water, Soil, Sediment, Biosolids, and Tissue by HRGC\HRMS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-09-10T17:22:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5872",
        "Identifier": "1668a (Soil\Sediment)",
        "Context": "USEPA",
        "Name": "Chlorinated Biphenyls in Soil, Sediment, and Mixed Samples by HRGC\HRMS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1714",
        "Identifier": "1671",
        "Context": "USEPA",
        "Name": "VOCs by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1715",
        "Identifier": "1673",
        "Context": "USEPA",
        "Name": "PEG-600 by Derivatization and HPLC",
        "Description": "1673 ~ EPA-EAD . PEG-600 by Derivatization and HPLC",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4688\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6078",
        "Identifier": "1681",
        "Context": "USEPA",
        "Name": "FECAL COLIFORMS IN SEWAGE SLUDGE",
        "Description": "Fecal Coliforms in Sewage Sludge (Biosolids) by MultipleTube Fermentation using A-1 medium",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-08\documents\method_1681_2006.pdf",
        "LastChangeDate": "2026-03-13T19:43:47 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4980",
        "Identifier": "1682",
        "Context": "USEPA",
        "Name": "Salmonella in Sewage Sludge (Biosolids) by MSRV Medium",
        "Description": "1682 ~ EPA-OW . Salmonella in Sewage Sludge (Biosolids) by MSRV Medium",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10000\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764686",
        "Identifier": "1693",
        "Context": "USEPA",
        "Name": "Cryptosporidium and Giardia in Disinfected Wastewater by Concentration\IMS\IFA",
        "Description": "Procedure to concentrate, detect and enumerate Cryptosporidium and Giardia in disinfected wastewater",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\cwa-methods\other-clean-water-act-test-methods-microbiological#file-485134",
        "LastChangeDate": "2019-04-18T13:48:15 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3201",
        "Identifier": "1694",
        "Context": "USEPA",
        "Name": "Pharmaceuticals and personal care products in water, soil, sediment, and biosolids by HPLC\MS\MS",
        "Description": "1694 ~ EPA-OW\OST . Pharmaceuticals and personal care products in water, soil, sediment, and biosolids by HPLC\MS\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9687\",
        "LastChangeDate": "2011-05-17T13:19:37 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764677",
        "Identifier": "1696",
        "Context": "USEPA",
        "Name": "Characterization of Human Fecal Pollution in Water by HF183\BacR287",
        "Description": "TaqMan® Quantitative Polymerase Chain Reaction (qPCR). qPCR procedure for the measurement of human-associated gene sequences from Bacteroides isolated from environmental water samples.",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\cwa-methods\other-clean-water-act-test-methods-microbiological#file-485125",
        "LastChangeDate": "2019-04-18T13:48:14 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764678",
        "Identifier": "1697",
        "Context": "USEPA",
        "Name": "Characterization of Human Fecal Pollution in Water by HumM2",
        "Description": "TaqMan® Quantitative Polymerase Chain Reaction (qPCR) Assay.  qPCR procedure for the measurement of human-associated gene sequences from Bacteroides-like microorganisms isolated from environmental water samples.",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\cwa-methods\other-clean-water-act-test-methods-microbiological#file-485126",
        "LastChangeDate": "2019-04-18T13:48:15 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4981",
        "Identifier": "1698",
        "Context": "USEPA",
        "Name": "Steroids and hormones in water, soil, sediment, and biosolids by HRGC\HRMS",
        "Description": "1698 ~ EPA-OW\OST . Steroids and hormones in water, soil, sediment, and biosolids by HRGC\HRMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9689\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4982",
        "Identifier": "1699",
        "Context": "USEPA",
        "Name": "Pesticides in water, soil, sediment, biosolids, and tissue by HRGC\HRMS",
        "Description": "1699 ~ EPA-OW\OST . Pesticides in water, soil, sediment, biosolids, and tissue by HRGC\HRMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9690\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1716",
        "Identifier": "16A",
        "Context": "USEPA",
        "Name": "16 A ~ Total Reduced Sulfur Emissions in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1717",
        "Identifier": "16B",
        "Context": "USEPA",
        "Name": "16 B ~ Total Reduced Sulfur Emissions in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1718",
        "Identifier": "17",
        "Context": "USEPA",
        "Name": "Particulate Emissions in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1719",
        "Identifier": "170.1",
        "Context": "USEPA",
        "Name": "Temperature",
        "Description": "170.1 ~ EPA-NERL . Temperature by Thermometer",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5216\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4729",
        "Identifier": "172",
        "Context": "USDOC\NOAA",
        "Name": "Trace metals in marine sediments by ICP\MS",
        "Description": "172 ~ NOAA NST . Trace metals in marine sediments by ICP\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7183\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5757",
        "Identifier": "172.0",
        "Context": "USDOC\NOAA",
        "Name": "Trace metals in marine sediments by ICP\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4730",
        "Identifier": "172.1",
        "Context": "USDOC\NOAA",
        "Name": "Trace metals in marine animal tissues by ICP\MS",
        "Description": "172.1 ~ NOAA NST . Trace metals in marine animal tissues by ICP\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7188\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1720",
        "Identifier": "18",
        "Context": "USEPA",
        "Name": "Gaseous Organic Compound Emission in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1721",
        "Identifier": "180.1",
        "Context": "USEPA",
        "Name": "Turbidity by Nephelometry",
        "Description": "180.1 ~ EPA-NERL . Turbidity by Turbidimeter",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5217\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1722",
        "Identifier": "1A",
        "Context": "USEPA",
        "Name": "1:00 AM ~ Sample and Velocity Traverses",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "809",
        "Identifier": "1AP73-7",
        "Context": "ENV\CANADA",
        "Name": "1AP73-7 ~ Ozone in the Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "810",
        "Identifier": "1AP77-A",
        "Context": "ENV\CANADA",
        "Name": "1AP77 A ~ Vinyl Chloride",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "811",
        "Identifier": "1RM-1",
        "Context": "ENV\CANADA",
        "Name": "1RM-1 ~ Hydrogen Chloride",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "812",
        "Identifier": "1RM-15",
        "Context": "ENV\CANADA",
        "Name": "1RM-15 ~ Gaseous Emissions from Fossil Boilers",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "813",
        "Identifier": "1RM-19",
        "Context": "ENV\CANADA",
        "Name": "1RM-19 ~ PCDDs and PCDFs",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "814",
        "Identifier": "1RM-20",
        "Context": "ENV\CANADA",
        "Name": "1RM-20 ~ Dibenzofuran and Dibenzo-p-dioxin",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "815",
        "Identifier": "1RM-5",
        "Context": "ENV\CANADA",
        "Name": "1RM-5 ~ Release of Mercury from Mercury Cell",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "816",
        "Identifier": "1RM-6",
        "Context": "ENV\CANADA",
        "Name": "1RM-6 ~ Total Reduced Sulphur (TRS) Compounds",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "817",
        "Identifier": "1RM-7",
        "Context": "ENV\CANADA",
        "Name": "1RM-7 ~ Lead",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "818",
        "Identifier": "1SRM-1",
        "Context": "ENV\CANADA",
        "Name": "1SRM-1 ~ Hydrogen Sulfide",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1723",
        "Identifier": "2.1 (ATM SO2)",
        "Context": "USEPA",
        "Name": "2.1 ATM SO2  ~ Sulfur Dioxide in the Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1724",
        "Identifier": "2.1 (PART.PM10)",
        "Context": "USEPA",
        "Name": "2.1 PART.PM10  ~ Particulate Matter as PM10 in Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1725",
        "Identifier": "2.11",
        "Context": "USEPA",
        "Name": "Particulate Matter as PM10 in Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1726",
        "Identifier": "2.1A",
        "Context": "USEPA",
        "Name": "2.1 A ~ Sulfur Dioxide in the Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1727",
        "Identifier": "2.2",
        "Context": "USEPA",
        "Name": "Suspended Particulates in the Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1728",
        "Identifier": "2.3",
        "Context": "USEPA",
        "Name": "Nitrogen Dioxide in the Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1729",
        "Identifier": "2.6",
        "Context": "USEPA",
        "Name": "Carbon Monoxide in the Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1730",
        "Identifier": "2.8",
        "Context": "USEPA",
        "Name": "Lead in Suspended Particulate Matter",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1731",
        "Identifier": "2.9",
        "Context": "USEPA",
        "Name": "Sulfur Dioxide in the Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1732",
        "Identifier": "20",
        "Context": "USEPA",
        "Name": "Nitrogen Oxides and Sulfur Dioxide in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5719",
        "Identifier": "20-0001",
        "Context": "BEACON",
        "Name": "20-0001, in Water by Immunoassay, Microtiter Plate",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:57 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5720",
        "Identifier": "20-0011",
        "Context": "BEACON",
        "Name": "2,4-Dichlorophenoxyacetic acid (2,4-D)in Water by Immunoassay, Microtiter Plate",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:57 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5721",
        "Identifier": "20-0017",
        "Context": "BEACON",
        "Name": "Aflatoxin in grains by immunoassay, Microtiter Plate",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5722",
        "Identifier": "20-0020",
        "Context": "BEACON",
        "Name": "T-2 toxin in grains by immunoassay, Microtiter Plate",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5723",
        "Identifier": "20-0068",
        "Context": "BEACON",
        "Name": "Microcystin in water by immunoassay, Microtiter Plate",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5724",
        "Identifier": "20-0098",
        "Context": "BEACON",
        "Name": "Microcystin in water by immunoassay, Coated Tube",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5725",
        "Identifier": "20-0099",
        "Context": "BEACON",
        "Name": "Aflatoxin in grains by immunoassay, Coated Tube",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5726",
        "Identifier": "20-0149",
        "Context": "BEACON",
        "Name": "Cylindrospermopsin in water by immunoassay, Microtiter Plate",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5727",
        "Identifier": "20-0173",
        "Context": "BEACON",
        "Name": "Saxitoxin in water by immunoassay, Microtiter Plate",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5728",
        "Identifier": "20-0218",
        "Context": "BEACON",
        "Name": "T-2\HT-2 toxins in grains by immunoassay, Microtiter Plate",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5729",
        "Identifier": "20-0230",
        "Context": "BEACON",
        "Name": "Aflatoxin in grains by immunoassay, Coated Tube with less usage",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1733",
        "Identifier": "200",
        "Context": "USEPA",
        "Name": "Metals by Atomic Absorption",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1734",
        "Identifier": "200.1",
        "Context": "USEPA",
        "Name": "Metals in Marine Waters by ICP\MS",
        "Description": "200.1 ~ EPA-NERL . Trace Elements in Marine Waters by ICPMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4670\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1735",
        "Identifier": "200.1(FLAA)",
        "Context": "USEPA",
        "Name": "200.1 FLAA  ~ Acid Soluble Metals in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1736",
        "Identifier": "200.1(GFAA)",
        "Context": "USEPA",
        "Name": "200.1 GFAA  ~ Acid Soluble Metals in Water by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1737",
        "Identifier": "200.1(ICP)",
        "Context": "USEPA",
        "Name": "200.1 ICP  ~ Acid Soluble Metals - ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5869",
        "Identifier": "200.10",
        "Context": "USEPA",
        "Name": "Trace Elements in Marine Waters by ICPMS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1738",
        "Identifier": "200.10_M",
        "Context": "USEPA",
        "Name": "200.10 M ~ Inductively Coupled Plasma",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1739",
        "Identifier": "200.11",
        "Context": "USEPA",
        "Name": "Metals in Fish Tissue by ICP-AES",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1740",
        "Identifier": "200.12",
        "Context": "USEPA",
        "Name": "Elements in Water by Temperature GFAA",
        "Description": "200.12 ~ EPA-NERL . Trace Elements in Marine Waters by GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4668\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1741",
        "Identifier": "200.13",
        "Context": "USEPA",
        "Name": "Elements in Water by Chelation with GFAA",
        "Description": "200.13 ~ EPA-NERL . Trace Elements by GFAA (w\ Preconcentration)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4664\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1742",
        "Identifier": "200.15",
        "Context": "USEPA",
        "Name": "Metals in Water by Nebulization and ICP-AES",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3240",
        "Identifier": "200.2",
        "Context": "USEPA",
        "Name": "Sample preparation procedure for spectrochemical determination of total recoverable elements",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9799\",
        "LastChangeDate": "2013-08-01T13:44:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "834601",
        "Identifier": "200.3",
        "Context": "USEPA",
        "Name": "Metals in Biota br CRC ICPMS (Wet units)",
        "Description": "Tissue samples are homogenized and sub-sampled prior to hotblock digestion with HNO3, HCl, and H2O2. Analysis is by Collision\Reaction Cell ICPMS.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-19T13:14:28 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4983",
        "Identifier": "200.5",
        "Context": "USEPA",
        "Name": "Trace elements in water by AVICP-AES",
        "Description": "200.5 ~ EPA-ORD \ EPA-OST . Trace elements in water by AVICP-AES",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9798\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "877",
        "Identifier": "200.6",
        "Context": "IL\SWSD",
        "Name": "Ca, Mg, K and Na in Wet Deposition",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1743",
        "Identifier": "200.62(B)",
        "Context": "USEPA",
        "Name": "200.62 B  ~ Pneumatic Nebulization ICP Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1744",
        "Identifier": "200.62(C)",
        "Context": "USEPA",
        "Name": "200.62 C  ~ Hydride Generation ICP Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5899",
        "Identifier": "200.7",
        "Context": "USEPA Rev 4.4",
        "Name": "Metals in Water by ICP-AES",
        "Description": "200.7 ~ EPA-NERL . Metals in Water by ICP-AES, Revision 4.4",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4690\",
        "LastChangeDate": "2022-12-05T15:27:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3090",
        "Identifier": "200.7",
        "Context": "USEPA",
        "Name": "Metals in Water by ICP-AES",
        "Description": "200.7 ~ EPA-NERL . Metals in Water by ICP-AES",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4690\",
        "LastChangeDate": "2007-12-20T10:51:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1745",
        "Identifier": "200.7(S)",
        "Context": "USEPA",
        "Name": "200.7 S  ~ Metals in Soil by ICP-AES",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1746",
        "Identifier": "200.7(W)",
        "Context": "USEPA",
        "Name": "200.7 W  ~ Metals in Water by ICP-AES",
        "Description": "200.7 ~ EPA-NERL . Metals in Water by ICP-AES",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4690\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1747",
        "Identifier": "200.7_M",
        "Context": "USEPA",
        "Name": "200.7 M ~ ICP-AES For Trace Element Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5584",
        "Identifier": "200.8",
        "Context": "USEPA Rev 5.4",
        "Name": "200.8 ~ EPA; Metals in Waters by ICP\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4665\",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3091",
        "Identifier": "200.8",
        "Context": "USEPA",
        "Name": "200.8 ~ EPA; Metals in Waters by ICP\MS",
        "Description": "200.8 ~ EPA-NERL . Metals in Waters by ICP\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4665\",
        "LastChangeDate": "2007-12-20T10:51:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1748",
        "Identifier": "200.8(S)",
        "Context": "USEPA",
        "Name": "200.8 S  ~ Metals in Wastes by ICP\MS",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1749",
        "Identifier": "200.8(W)",
        "Context": "USEPA",
        "Name": "200.8 W  ~ Metals in Waters by ICP\MS",
        "Description": "200.8 ~ EPA-NERL . Metals in Waters by ICP\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4665\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1750",
        "Identifier": "200.9",
        "Context": "USEPA",
        "Name": "200.9 ~ EPA; Metals by Temperature Stabilized GFAA",
        "Description": "200.9 ~ EPA-NERL . Trace Elements in Water by GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4797\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743073",
        "Identifier": "200.9",
        "Context": "USEPA Rev 2.2",
        "Name": "200.9 ~ EPA; Determination of Trace Elements by Stabilized Temperature Graphic Furnace Atomic Absorption",
        "Description": "https:\\www.epa.gov\sites\production\files\2015-08\documents\method_200-9_rev_2-2_1994.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-03-30T18:10:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "952",
        "Identifier": "2000",
        "Context": "NIOSH",
        "Name": "Methanol by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "110089",
        "Identifier": "2000.0",
        "Context": "USEPA",
        "Name": "2000.0 ~ EPA; ACUTE TOXICITY TESTS FOR WATERS USING FATHEAD MINNOWS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2010-12-28T16:28:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "953",
        "Identifier": "2002",
        "Context": "NIOSH",
        "Name": "Amines, Aromatics by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "110088",
        "Identifier": "2002.0",
        "Context": "USEPA",
        "Name": "2002.0 ~ EPA; ACUTE TOXICITY TESTS WITH EFFLUENTS AND RECIEVING WATERS USING CERIODAPHNIA DUBIA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2010-12-28T16:28:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "954",
        "Identifier": "2003",
        "Context": "NIOSH",
        "Name": "1,1,2,2-Tetrabromoethane by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "955",
        "Identifier": "2004",
        "Context": "NIOSH",
        "Name": "Amides by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5557",
        "Identifier": "2004.0",
        "Context": "USEPA",
        "Name": "2004.0 ~ EPA; Acute Toxicity Tests of  Marine Organisms - Sheepshead minnow, Cyprinodon variegatus",
        "Description": "https:\\www.epa.gov\cwa-methods\acute-toxicity-wet-methods",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-07-20T14:10:04 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "956",
        "Identifier": "2005",
        "Context": "NIOSH",
        "Name": "Nitrobenzenes by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5318",
        "Identifier": "2005.06",
        "Context": "AOAC",
        "Name": "Liquid chromatography-fluorescence detection method for the determination of paralytic shellfish toxins in scallops",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-09-14T12:21:12 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5558",
        "Identifier": "2006.0",
        "Context": "USEPA",
        "Name": "2006.0 ~ EPA; Acute Toxicity Tests of  Marine Organisms - Silverside, Menidia beryllina, Menidia menidia, and Menidia peninsulae",
        "Description": "https:\\www.epa.gov\cwa-methods\acute-toxicity-wet-methods",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-07-20T14:10:04 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "957",
        "Identifier": "2007",
        "Context": "NIOSH",
        "Name": "Amioethanol compound I",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5559",
        "Identifier": "2007.0",
        "Context": "USEPA",
        "Name": "2007.0 ~ EPA; Acute Toxicity Tests of  Marine Organisms - Mysid, Americamysis bahia",
        "Description": "https:\\www.epa.gov\cwa-methods\acute-toxicity-wet-methods",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-07-20T14:10:04 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "958",
        "Identifier": "2008",
        "Context": "NIOSH",
        "Name": "Chloroacetic Acid by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1751",
        "Identifier": "201(CSR)",
        "Context": "USEPA",
        "Name": "201 CSR  ~ Determination of PM10 Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1752",
        "Identifier": "201(EGR)",
        "Context": "USEPA",
        "Name": "201 EGR  ~ Determination of PM10 Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "959",
        "Identifier": "2010",
        "Context": "NIOSH",
        "Name": "Amines, Aliphatic by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "960",
        "Identifier": "2011",
        "Context": "NIOSH",
        "Name": "Formic Acid by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "961",
        "Identifier": "2012",
        "Context": "NIOSH",
        "Name": "n-Butylamine by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "962",
        "Identifier": "2013",
        "Context": "NIOSH",
        "Name": "Phenyl Ether-Diphenyl Mixture by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "963",
        "Identifier": "2014",
        "Context": "NIOSH",
        "Name": "p-Chlorophenol by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "964",
        "Identifier": "2015",
        "Context": "NIOSH",
        "Name": "Chloroacetaldehyde by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "736015",
        "Identifier": "2015.01",
        "Context": "AOAC",
        "Name": "Heavy Metals in Food Inductively Coupled Plasma-Mass Spectrometry",
        "Description": "https:\\www.scribd.com\document\307771009\00-AOAC-Method-2015-01",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-07-05T12:58:23 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5317",
        "Identifier": "2015.03",
        "Context": "AOAC",
        "Name": "Sodium Fluoroacetate by LC-MS\MS",
        "Description": "http:\\www.aoac.org\imis15_prod\AOAC_Docs\NEWS\2015_03_Rev_2.pdf",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4743\",
        "LastChangeDate": "2006-08-12T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5555",
        "Identifier": "2019.0",
        "Context": "USEPA",
        "Name": "2019.0 ~ EPA; Acute Toxicity Tests of  Marine Orgs- Rainbow trout, Oncorhynchus mykiss, and Brook trout, Salvelinus fontinalis",
        "Description": "https:\\www.epa.gov\cwa-methods\acute-toxicity-wet-methods",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-07-20T14:10:03 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1753",
        "Identifier": "202",
        "Context": "USEPA",
        "Name": "Determination of Particulate Emission",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1754",
        "Identifier": "202.1",
        "Context": "USEPA",
        "Name": "Aluminum by FLAA",
        "Description": "202.1 ~ EPA-NERL . Aluminum by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5267\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1755",
        "Identifier": "202.1_M",
        "Context": "USEPA",
        "Name": "202.1 M ~ Aluminum by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1756",
        "Identifier": "202.2",
        "Context": "USEPA",
        "Name": "Aluminum by GFAA",
        "Description": "202.2 ~ EPA-NERL . Aluminum by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5268\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1757",
        "Identifier": "202.2_M",
        "Context": "USEPA",
        "Name": "202.2 M ~ Aluminum by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1758",
        "Identifier": "202.2_M\HG)",
        "Context": "USEPA",
        "Name": "202.2 M\HG  ~ Mercury in Industrial Wastes by CVAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1759",
        "Identifier": "202.62(D)",
        "Context": "USEPA",
        "Name": "202.62 D  ~ KOH Fusion Samples by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5556",
        "Identifier": "2021.0",
        "Context": "USEPA",
        "Name": "2021.0 ~ EPA; Acute Toxicity Tests of  Marine Organisms - Daphnia puplex and Daphnia magna",
        "Description": "https:\\www.epa.gov\cwa-methods\acute-toxicity-wet-methods",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-07-20T14:10:04 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "606208",
        "Identifier": "203",
        "Context": "APHA",
        "Name": "Calcium Carbonate Saturation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2011-10-20T13:58:01 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1760",
        "Identifier": "203",
        "Context": "USEPA",
        "Name": "Determination of Opacity of Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1761",
        "Identifier": "203A",
        "Context": "USEPA",
        "Name": "203 A ~ Time-Averaged Opacity of Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1762",
        "Identifier": "203B",
        "Context": "USEPA",
        "Name": "203 B ~ Opacity of Emission - Time Exception Regs.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1763",
        "Identifier": "203C",
        "Context": "USEPA",
        "Name": "203 C ~ Opacity of Emission - Instantaneous Regs.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1764",
        "Identifier": "204.1",
        "Context": "USEPA",
        "Name": "Antimony by FLAA",
        "Description": "204.1 ~ EPA-NERL . Antimony by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5269\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1765",
        "Identifier": "204.1_M",
        "Context": "USEPA",
        "Name": "204.1 M ~ Antimony by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1766",
        "Identifier": "204.2",
        "Context": "USEPA",
        "Name": "Antimony by GFAA",
        "Description": "204.2 ~ EPA-NERL . Antimony by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5270\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1767",
        "Identifier": "204.2_M",
        "Context": "USEPA",
        "Name": "204.2 M ~ Antimony by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1768",
        "Identifier": "206.2",
        "Context": "USEPA",
        "Name": "Arsenic by GFAA",
        "Description": "206.2 ~ EPA-NERL . Arsenic by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5271\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1769",
        "Identifier": "206.2_M",
        "Context": "USEPA",
        "Name": "206.2 M ~ Arsenic by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1770",
        "Identifier": "206.3",
        "Context": "USEPA",
        "Name": "Arsenic by HYDAA",
        "Description": "206.3 ~ EPA-NERL . Arsenic by Gaseous Hydride Generation and AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5272\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1771",
        "Identifier": "206.3_M",
        "Context": "USEPA",
        "Name": "206.3 M ~ Hydride Generation ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1772",
        "Identifier": "206.4",
        "Context": "USEPA",
        "Name": "Arsenic by Spectrophotometric Analysis",
        "Description": "206.4 ~ EPA-NERL . Arsenic by Spectrophotometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5273\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1773",
        "Identifier": "206.5",
        "Context": "USEPA",
        "Name": "Arsenic Digestion for HYDAA",
        "Description": "206.5 ~ EPA-NERL . Sample Digestion for Arsenic",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5274\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1774",
        "Identifier": "208.1",
        "Context": "USEPA",
        "Name": "Barium by FLAA",
        "Description": "208.1 ~ EPA-NERL . Barium by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5275\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1775",
        "Identifier": "208.1_M",
        "Context": "USEPA",
        "Name": "208.1 M ~ Barium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1776",
        "Identifier": "208.2",
        "Context": "USEPA",
        "Name": "Barium by GFAA",
        "Description": "208.2 ~ EPA-NERL . Barium by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5276\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1777",
        "Identifier": "208.2_M",
        "Context": "USEPA",
        "Name": "208.2 M ~ Barium by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5286",
        "Identifier": "209C",
        "Context": "APHA_SM19ED",
        "Name": "209 C ~ Residue Non- filterable (TSS) ",
        "Description": "Standard Methods (19th ed.) 209C (gravimetric, 103-105 degree C post washing of residue) mg\L",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-12-09T07:55:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1778",
        "Identifier": "210.1",
        "Context": "USEPA",
        "Name": "Beryllium by FLAA",
        "Description": "210.1 ~ EPA-NERL . Beryllium by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5277\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1779",
        "Identifier": "210.1_M",
        "Context": "USEPA",
        "Name": "210.1 M ~ Beryllium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1780",
        "Identifier": "210.2",
        "Context": "USEPA",
        "Name": "Beryllium by GFAA",
        "Description": "210.2 ~ EPA-NERL . Beryllium by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5278\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1781",
        "Identifier": "210.2_M",
        "Context": "USEPA",
        "Name": "210.2 M ~ Beryllium by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2913",
        "Identifier": "211.1",
        "Context": "USFDA",
        "Name": "Organochlorine Residues for Fatty Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1782",
        "Identifier": "212.3",
        "Context": "USEPA",
        "Name": "Boron by Colorimetric Analysis",
        "Description": "212.3 ~ EPA-NERL . Boron by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5279\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "179",
        "Identifier": "2120-B",
        "Context": "APHA",
        "Name": "2120 B ~ Color in Water by Visual Comparison",
        "Description": "2120 B ~ Standard Methods . Color in Water by Visual Comparison Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9730\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "180",
        "Identifier": "2120-C",
        "Context": "APHA",
        "Name": "2120 C ~ Color in Water by Spectrophotometry",
        "Description": "2120 C ~ Standard Methods . Color in Water by Spectrophotometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9731\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "181",
        "Identifier": "2120-D",
        "Context": "APHA",
        "Name": "2120 D ~ Color in Water Using Tristimulus Filters",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "182",
        "Identifier": "2120-E",
        "Context": "APHA",
        "Name": "2120 E ~ Color in Water Using the ADMI Method",
        "Description": "2120 E ~ Standard Methods . Color in Water by ADMI Tristimulus Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9732\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1783",
        "Identifier": "213.1",
        "Context": "USEPA",
        "Name": "Cadmium by FLAA",
        "Description": "213.1 ~ EPA-NERL . Cadmium by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5770\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1784",
        "Identifier": "213.1_M",
        "Context": "USEPA",
        "Name": "213.1 M ~ Cadmium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1785",
        "Identifier": "213.2",
        "Context": "USEPA",
        "Name": "Cadmium by GFAA",
        "Description": "213.2 ~ EPA-NERL . Cadmium by GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4666\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1786",
        "Identifier": "213.2_M",
        "Context": "USEPA",
        "Name": "213.2 M ~ Cadmium by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "183",
        "Identifier": "2130",
        "Context": "APHA",
        "Name": "Turbidity in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3019",
        "Identifier": "2130-B",
        "Context": "APHA",
        "Name": "2130 B ~ Nephelometric Method",
        "Description": "2130 B ~ Standard Methods . Turbidity by Nephelometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9645\",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5903",
        "Identifier": "2130-B",
        "Context": "APHA (2001)",
        "Name": "Turbidity by Nephelometry",
        "Description": "Not current version URL: https:\\www.nemi.gov\methods\method_summary\9645\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-12-30T23:48:28 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1787",
        "Identifier": "215.1",
        "Context": "USEPA",
        "Name": "Calcium by FLAA",
        "Description": "215.1 ~ EPA-NERL . Calcium by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5280\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1788",
        "Identifier": "215.1_M",
        "Context": "USEPA",
        "Name": "215.1 M ~ Calcium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1789",
        "Identifier": "215.2",
        "Context": "USEPA",
        "Name": "Calcium by EDTA Titrimetric Analysis",
        "Description": "215.2 ~ EPA-NERL . Calcium by Titrimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5281\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "184",
        "Identifier": "2150",
        "Context": "APHA",
        "Name": "Odor in Water by Threshold Testing",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4612",
        "Identifier": "2150 B",
        "Context": "APHA",
        "Name": "2150 B ~ Threshold Odor Test",
        "Description": "2150B \ 2150 B ~ Standard Methods . Threshold Odor Test",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9883\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "185",
        "Identifier": "2160-B",
        "Context": "APHA",
        "Name": "2160 B ~ Taste in Water by Flavor Threshold Test",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "186",
        "Identifier": "2160-C",
        "Context": "APHA",
        "Name": "2160 C ~ Taste in Water by Flavor Rating",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "187",
        "Identifier": "2170",
        "Context": "APHA",
        "Name": "Taste and Odor by Profile Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1790",
        "Identifier": "218.1",
        "Context": "USEPA",
        "Name": "Chromium by FLAA",
        "Description": "218.1 ~ EPA-NERL . Chromium by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5282\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1791",
        "Identifier": "218.1_M",
        "Context": "USEPA",
        "Name": "218.1 M ~ Chromium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1792",
        "Identifier": "218.2",
        "Context": "USEPA",
        "Name": "Chromium by GFAA",
        "Description": "218.2 ~ EPA-NERL . Chromium by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5283\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1793",
        "Identifier": "218.2_M",
        "Context": "USEPA",
        "Name": "218.2 M ~ Chromium by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1794",
        "Identifier": "218.3",
        "Context": "USEPA",
        "Name": "Chromium by Chelation Extraction FLAA",
        "Description": "218.3 ~ EPA-NERL . Chromium by Chelation Extraction and Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5284\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1795",
        "Identifier": "218.4",
        "Context": "USEPA",
        "Name": "Hexavalent Chromium by FLAA",
        "Description": "218.4 ~ EPA-NERL . Hexavalent Chromium Using Chelation Extraction and AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4820\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1796",
        "Identifier": "218.5",
        "Context": "USEPA",
        "Name": "Hexavalent Chromium by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1797",
        "Identifier": "218.6",
        "Context": "USEPA",
        "Name": "Hexavalent Chromium by Ion Chromatograph",
        "Description": "218.6 ~ EPA-ORD \ EPA-OST . Hexavalent Chromium in Water by Ion Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9508\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "778558",
        "Identifier": "218.7",
        "Context": "USEPA",
        "Name": "Determination of Hexavalent Chromium in Drinking Water by Ion Chromatography with Post-Column Derivatization",
        "Description": "Determination of Hexavalent Chromium in Drinking Water by Ion Chromatography with Post-Column Derivatization and UV-Visible Spectroscopic Detection",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\12610\",
        "LastChangeDate": "2019-12-31T11:01:01 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1798",
        "Identifier": "219.1",
        "Context": "USEPA",
        "Name": "Cobalt by FLAA",
        "Description": "219.1 ~ EPA-NERL . Cobalt by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5285\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1799",
        "Identifier": "219.1_M",
        "Context": "USEPA",
        "Name": "219.1 M ~ Cobalt by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1800",
        "Identifier": "219.2",
        "Context": "USEPA",
        "Name": "Cobalt by GFAA",
        "Description": "219.2 ~ EPA-NERL . Cobalt by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5286\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1801",
        "Identifier": "219.2_M",
        "Context": "USEPA",
        "Name": "219.2 M ~ Cobalt by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1802",
        "Identifier": "220.1",
        "Context": "USEPA",
        "Name": "Copper by FLAA",
        "Description": "220.1 ~ EPA-NERL . Copper by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5287\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1803",
        "Identifier": "220.1_M",
        "Context": "USEPA",
        "Name": "220.1 M ~ Copper by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1804",
        "Identifier": "220.2",
        "Context": "USEPA",
        "Name": "Copper by GFAA",
        "Description": "220.2 ~ EPA-NERL . Copper by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5293\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1805",
        "Identifier": "220.2_M",
        "Context": "USEPA",
        "Name": "220.2 M ~ Copper by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2914",
        "Identifier": "221.1",
        "Context": "USFDA",
        "Name": "Chlorophenoxy Acid and Pentachlorophenol",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5738",
        "Identifier": "2241-2",
        "Context": "LUDLUM",
        "Name": "2241-2, Digital ratemeter Survey Meter with Alpha Beta Radiation Detector",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1806",
        "Identifier": "23",
        "Context": "USEPA",
        "Name": "PCDDs and PCDFs in Air Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2915",
        "Identifier": "231.1",
        "Context": "USFDA",
        "Name": "Organophosphorous Residue for Fatty Food",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1807",
        "Identifier": "231.1",
        "Context": "USEPA",
        "Name": "Gold by FLAA",
        "Description": "231.1 ~ EPA-NERL . Gold by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5348\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1808",
        "Identifier": "231.2",
        "Context": "USEPA",
        "Name": "Gold by GFAA",
        "Description": "231.2 ~ EPA-NERL . Gold by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5294\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "188",
        "Identifier": "2310",
        "Context": "APHA",
        "Name": "Acidity in Water by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4613",
        "Identifier": "2310 B",
        "Context": "APHA",
        "Name": "2310 B ~ Acidity by Titration",
        "Description": "2310B \ 2310 B ~ Standard Methods . Acidity by Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9891\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743071",
        "Identifier": "2310 B",
        "Context": "APHA (2011)",
        "Name": "2310 B ~ acidity, titration using electrometric endpoint or phenolphthalein  endpoint",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-03-30T18:11:22 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "189",
        "Identifier": "2320",
        "Context": "APHA",
        "Name": "Alkalinity in Water by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743070",
        "Identifier": "2320 B",
        "Context": "APHA (2011)",
        "Name": "2320 B ~ alkalinity, electrometric or colorimetric titration to pH 4.5",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-03-30T18:11:26 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "814964",
        "Identifier": "2320-B",
        "Context": "APHA_SM21ED",
        "Name": "2320 B ~ Alkalinity by Titration",
        "Description": "2320B ~ Standard Methods . Alkalinity by Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9694\",
        "LastChangeDate": "2020-12-11T17:04:19 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5901",
        "Identifier": "2320-B",
        "Context": "APHA (1997)",
        "Name": "Alkalinity by Titration",
        "Description": "Not current version URL: https:\\www.nemi.gov\methods\method_summary\9694\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-12-30T23:48:28 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3063",
        "Identifier": "2320-B",
        "Context": "APHA",
        "Name": "2320 B ~ Alkalinity by Gran Titration",
        "Description": "2320B ~ Standard Methods . Alkalinity by Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9694\",
        "LastChangeDate": "2007-09-25T11:06:33 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6271",
        "Identifier": "2320B",
        "Context": "APHA_SM18ED",
        "Name": "2320B",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-08-25T21:04:06 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5542",
        "Identifier": "2330-B",
        "Context": "APHA",
        "Name": "2330 B ~ Calcium Carbonate Saturation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-04-13T13:12:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6069",
        "Identifier": "2340-B",
        "Context": "APHA_SM21ED",
        "Name": "SM 2340 B, 2340-B ~ APHA_SM21ED; Hardness - Hardness by Calculation",
        "Description": "https:\\lams.nelac-institute.org\TestMethodDetails?code=20046440",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-01-27T17:09:19 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3053",
        "Identifier": "2340B",
        "Context": "APHA",
        "Name": "2340 B ~ Hardness by Calculation",
        "Description": "2340B ~ Standard Methods . Hardness in Water by EDTA Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4679\",
        "LastChangeDate": "2007-08-29T11:24:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6275",
        "Identifier": "2340B",
        "Context": "APHA_SM18ED",
        "Name": "2340B",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-08-25T21:04:06 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4614",
        "Identifier": "2340C",
        "Context": "APHA",
        "Name": "2340 C ~ EDTA Titrimetric Method (Hardness)",
        "Description": "2340C ~ Standard Methods . EDTA Titrimetric Method (Hardness)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5701\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5566",
        "Identifier": "2340C",
        "Context": "APHA (1997)",
        "Name": "2340 C ~ EDTA Titrimetric Method (Hardness)",
        "Description": "Not current version URL: https:\\www.nemi.gov\methods\method_summary\5701\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-03-30T14:36:39 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6277",
        "Identifier": "2340C",
        "Context": "APHA_SM18ED",
        "Name": "2340C",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-08-25T21:04:06 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3142",
        "Identifier": "2340C",
        "Context": "APHA_SM20ED",
        "Name": "2340 C ~ EDTA Titrimetric Method (Hardness)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2008-03-14T14:45:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1809",
        "Identifier": "235.1",
        "Context": "USEPA",
        "Name": "Iridium by FLAA",
        "Description": "235.1 ~ EPA-NERL . Iridium by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5349\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1810",
        "Identifier": "235.2",
        "Context": "USEPA",
        "Name": "Iridium by GFAA",
        "Description": "235.2 ~ EPA-NERL . Iridium by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5295\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "191",
        "Identifier": "2350-B",
        "Context": "APHA",
        "Name": "2350 B ~ Chlorine Demand\Requirement of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "192",
        "Identifier": "2350-C",
        "Context": "APHA",
        "Name": "2350 C ~ Chlorine Dioxide Demand\Requirement of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "193",
        "Identifier": "2350-D",
        "Context": "APHA",
        "Name": "2350 D ~ Ozone Demand or Requirement of Water- Batch Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "194",
        "Identifier": "2350-E",
        "Context": "APHA",
        "Name": "2350 E ~ Ozone Demand or Requirement of Water- Semi-Batch Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1811",
        "Identifier": "236.1",
        "Context": "USEPA",
        "Name": "Iron by FLAA",
        "Description": "236.1 ~ EPA-NERL . Iron by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5327\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1812",
        "Identifier": "236.1_M",
        "Context": "USEPA",
        "Name": "236.1 M ~ Iron by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1813",
        "Identifier": "236.2",
        "Context": "USEPA",
        "Name": "Iron by GFAA",
        "Description": "236.2 ~ EPA-NERL . Iron by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5296\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1814",
        "Identifier": "236.2_M",
        "Context": "USEPA",
        "Name": "236.2 M ~ Iron by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1815",
        "Identifier": "239.1",
        "Context": "USEPA",
        "Name": "Lead by FLAA",
        "Description": "239.1 ~ EPA-NERL . Lead by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5328\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1816",
        "Identifier": "239.1_M",
        "Context": "USEPA",
        "Name": "239.1 M ~ Lead by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1817",
        "Identifier": "239.2",
        "Context": "USEPA",
        "Name": "Lead by GFAA",
        "Description": "239.2 ~ EPA-NERL . Lead by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5297\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1818",
        "Identifier": "239.2_M",
        "Context": "USEPA",
        "Name": "239.2 M ~ Lead by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3221",
        "Identifier": "24-5.4",
        "Context": "ASA(2ND ED.)",
        "Name": "24-5.4 ~ Phosphorous in soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-05-31T17:28:31 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1819",
        "Identifier": "242.1",
        "Context": "USEPA",
        "Name": "Magnesium by FLAA",
        "Description": "242.1 ~ EPA-NERL . Magnesium by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5329\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1820",
        "Identifier": "242.1_M",
        "Context": "USEPA",
        "Name": "242.1 M ~ Magnesium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2916",
        "Identifier": "242.4",
        "Context": "USFDA",
        "Name": "Substituted Urea Herbicides",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1821",
        "Identifier": "243.1",
        "Context": "USEPA",
        "Name": "Manganese by FLAA",
        "Description": "243.1 ~ EPA-NERL . Manganese by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5330\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1822",
        "Identifier": "243.1_M",
        "Context": "USEPA",
        "Name": "243.1 M ~ Manganese by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1823",
        "Identifier": "243.2",
        "Context": "USEPA",
        "Name": "Manganese by GFAA",
        "Description": "243.2 ~ EPA-NERL . Manganese by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5298\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1824",
        "Identifier": "243.2_M",
        "Context": "USEPA",
        "Name": "243.2 M ~ Manganese by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5900",
        "Identifier": "245.1",
        "Context": "USEPA Rev 3.0",
        "Name": "Determination of Mercury in Water by Cold Vapor Atomic Absorption Spectrometry",
        "Description": "https:\\www.epa.gov\sites\default\files\2015-06\documents\epa-245.1.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-12-30T23:48:27 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1825",
        "Identifier": "245.1",
        "Context": "USEPA",
        "Name": "Mercury in Water by CVAA",
        "Description": "245.1 ~ EPA-NERL . Mercury by CVAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4821\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1826",
        "Identifier": "245.1_M",
        "Context": "USEPA",
        "Name": "245.1 M ~ Mercury in Water by Manual CVAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1827",
        "Identifier": "245.2",
        "Context": "USEPA",
        "Name": "Mercury by CVAA",
        "Description": "245.2 ~ EPA-NERL . Mercury by CVAA (Automated)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4822\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1828",
        "Identifier": "245.2_M",
        "Context": "USEPA",
        "Name": "245.2 M ~ Mercury in Water by Automated CVAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1829",
        "Identifier": "245.3",
        "Context": "USEPA",
        "Name": "Mercury in Water by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1830",
        "Identifier": "245.5",
        "Context": "USEPA",
        "Name": "Mercury in Sediment by CVAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1831",
        "Identifier": "245.5_M",
        "Context": "USEPA",
        "Name": "245.5 M ~ Mercury in Soil and Sediment by CVAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1832",
        "Identifier": "245.6",
        "Context": "USEPA",
        "Name": "Mercury in Tissue by CVAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3147",
        "Identifier": "245.7",
        "Context": "USEPA",
        "Name": "Mercury in water by cold-vapor atomic fluorescence spectrometry",
        "Description": "245.7 ~ EPA-ORD \ EPA-OST . Mercury in water by cold-vapor atomic fluorescence spectrometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9629\",
        "LastChangeDate": "2008-05-02T11:04:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1833",
        "Identifier": "246.1",
        "Context": "USEPA",
        "Name": "Molybdenum by FLAA",
        "Description": "246.1 ~ EPA-NERL . Molybdenum by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5331\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1834",
        "Identifier": "246.2",
        "Context": "USEPA",
        "Name": "Molybdenum by GFAA",
        "Description": "246.2 ~ EPA-NERL . Molybdenum by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5300\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1835",
        "Identifier": "249.1",
        "Context": "USEPA",
        "Name": "Nickel by FLAA",
        "Description": "249.1 ~ EPA-NERL . Nickel by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5332\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1836",
        "Identifier": "249.1_M",
        "Context": "USEPA",
        "Name": "249.1 M ~ Nickel by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1837",
        "Identifier": "249.2",
        "Context": "USEPA",
        "Name": "Nickel by GFAA",
        "Description": "249.2 ~ EPA-NERL . Nickel by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5301\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1838",
        "Identifier": "249.2_M",
        "Context": "USEPA",
        "Name": "249.2 M ~ Nickel by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1839",
        "Identifier": "25",
        "Context": "USEPA",
        "Name": "Total Gaseous Nonmethane Organic Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "965",
        "Identifier": "2500",
        "Context": "NIOSH",
        "Name": "Methyl Ethyl Ketone by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "966",
        "Identifier": "2501",
        "Context": "NIOSH",
        "Name": "Acrolein",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "967",
        "Identifier": "2504",
        "Context": "NIOSH",
        "Name": "Tetraethyl Pyrophosphate by GC\FPD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "968",
        "Identifier": "2505",
        "Context": "NIOSH",
        "Name": "Furfuryl Alcohol by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "969",
        "Identifier": "2506",
        "Context": "NIOSH",
        "Name": "Acetone Cyanohydrin",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "970",
        "Identifier": "2507",
        "Context": "NIOSH",
        "Name": "Nitroglycerin GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "971",
        "Identifier": "2508",
        "Context": "NIOSH",
        "Name": "Isophorone by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "972",
        "Identifier": "2510",
        "Context": "NIOSH",
        "Name": "1-Octanethiol by GC\FPD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "195",
        "Identifier": "2510",
        "Context": "APHA",
        "Name": "Conductivity in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3054",
        "Identifier": "2510B",
        "Context": "APHA",
        "Name": "2510 B ~ Conductivity - Laboratory Method",
        "Description": "2510B ~ Standard Methods . Conductivity - Laboratory Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5702\",
        "LastChangeDate": "2007-08-29T11:24:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5567",
        "Identifier": "2510B",
        "Context": "APHA (1997)",
        "Name": "2510 B ~ Conductivity - Laboratory Method",
        "Description": "Not current version URL: https:\\www.nemi.gov\methods\method_summary\5702\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-03-30T14:36:39 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5548",
        "Identifier": "2510B",
        "Context": "APHA_SM20ED",
        "Name": "2510 B ~ Conductivity - Laboratory Method Standard: Methods for the Examination of Water and Wastewater",
        "Description": "In the laboratory, conductance (or resistance) of a standard KCl solution is measured and from the corresponding conductivity, a cell constant is calculated. Once the cell constant has been determined, or set, the conductivity of an unknown solution will be displayed by the meter. https:\\archive.org\details\gov.law.apha.method.2510.1992",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5702\",
        "LastChangeDate": "2016-05-04T07:54:33 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "973",
        "Identifier": "2513",
        "Context": "NIOSH",
        "Name": "Ethylene Chlorohydrin by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "974",
        "Identifier": "2514",
        "Context": "NIOSH",
        "Name": "Anisidine",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "975",
        "Identifier": "2515",
        "Context": "NIOSH",
        "Name": "Diazomethane by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "976",
        "Identifier": "2516",
        "Context": "NIOSH",
        "Name": "Dichlorofluoromethane by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "977",
        "Identifier": "2517",
        "Context": "NIOSH",
        "Name": "Pentachloroethane by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "978",
        "Identifier": "2518",
        "Context": "NIOSH",
        "Name": "Hexachloro-1,3-Cyclopentadiene by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "979",
        "Identifier": "2519",
        "Context": "NIOSH",
        "Name": "Ethyl Chloride by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1840",
        "Identifier": "252.1",
        "Context": "USEPA",
        "Name": "Osmium by FLAA",
        "Description": "252.1 ~ EPA-NERL . Osmium by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5333\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1841",
        "Identifier": "252.2",
        "Context": "USEPA",
        "Name": "Osmium by GFAA",
        "Description": "252.2 ~ EPA-NERL . Osmium by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5299\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "196",
        "Identifier": "2520-B",
        "Context": "APHA",
        "Name": "2520 B ~ Salinity in Water- Electrical Conductivity Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "197",
        "Identifier": "2520-C",
        "Context": "APHA",
        "Name": "2520 C ~ Salinity in Water- Density Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "198",
        "Identifier": "2520-D",
        "Context": "APHA",
        "Name": "2520 D ~ Salinity in Water- Algorithm of Practical Salinity",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "980",
        "Identifier": "2521",
        "Context": "NIOSH",
        "Name": "Methylcyclohexanone by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "981",
        "Identifier": "2522",
        "Context": "NIOSH",
        "Name": "Nitrosamine by GC\TEA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "982",
        "Identifier": "2523",
        "Context": "NIOSH",
        "Name": "1,3-Cyclopentadiene by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "983",
        "Identifier": "2524",
        "Context": "NIOSH",
        "Name": "Dimethyl Sulfate by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "984",
        "Identifier": "2526",
        "Context": "NIOSH",
        "Name": "Nitroethane by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "985",
        "Identifier": "2527",
        "Context": "NIOSH",
        "Name": "Nitromethane GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "986",
        "Identifier": "2528",
        "Context": "NIOSH",
        "Name": "2-Nitropropane GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "987",
        "Identifier": "2529",
        "Context": "NIOSH",
        "Name": "Furfural Gas Chromatography\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1842",
        "Identifier": "253.1",
        "Context": "USEPA",
        "Name": "Palladium by FLAA",
        "Description": "253.1 ~ EPA-NERL . Palladium by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5334\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1843",
        "Identifier": "253.2",
        "Context": "USEPA",
        "Name": "Palladium by GFAA",
        "Description": "253.2 ~ EPA-NERL . Palladium by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5302\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "988",
        "Identifier": "2530",
        "Context": "NIOSH",
        "Name": "Diphenyl by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "199",
        "Identifier": "2530-B",
        "Context": "APHA",
        "Name": "2530 B ~ Particulate Floatables in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "200",
        "Identifier": "2530-C",
        "Context": "APHA",
        "Name": "2530 C ~ Floatable Oil and Grease in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "989",
        "Identifier": "2532",
        "Context": "NIOSH",
        "Name": "Glutaraldehyde by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "990",
        "Identifier": "2533",
        "Context": "NIOSH",
        "Name": "Tetraethyl Lead (as Pb) by GC\PID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "991",
        "Identifier": "2534",
        "Context": "NIOSH",
        "Name": "Tetramethyl Lead (as Pb) by GC\PID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "992",
        "Identifier": "2535",
        "Context": "NIOSH",
        "Name": "Toluene-2,4-Diisocyanate by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "993",
        "Identifier": "2536",
        "Context": "NIOSH",
        "Name": "Valeraldehyde by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "994",
        "Identifier": "2537",
        "Context": "NIOSH",
        "Name": "Methyl Methacrylate by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "995",
        "Identifier": "2538",
        "Context": "NIOSH",
        "Name": "Acetaldehyde by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "996",
        "Identifier": "2539",
        "Context": "NIOSH",
        "Name": "Aldehydes, Screening",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "997",
        "Identifier": "2540",
        "Context": "NIOSH",
        "Name": "Organics by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "201",
        "Identifier": "2540-B",
        "Context": "APHA",
        "Name": "2540 B ~ Total Solids Dried 103-105C in Water",
        "Description": "2540 B ~ Standard Methods . Total Solids Dried at 103-105<sup>o<\sup>C",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9816\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "202",
        "Identifier": "2540-C",
        "Context": "APHA",
        "Name": "2540 C ~ Total Dissolved Solids in Water",
        "Description": "2540 C ~ Standard Methods . Total Dissolved Solids Dried at 180<sup>o<\sup>C",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9818\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5568",
        "Identifier": "2540-C",
        "Context": "APHA (1991)",
        "Name": "2540 C ~ Total Dissolved Solids Dried at 180oC",
        "Description": "Not current version URL: https:\\www.nemi.gov\methods\method_summary\9818\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5569",
        "Identifier": "2540-C",
        "Context": "APHA (1997)",
        "Name": "2540 C ~ Total Dissolved Solids Dried at 180oC",
        "Description": "Not current version URL: https:\\www.nemi.gov\methods\method_summary\9818\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5570",
        "Identifier": "2540-C",
        "Context": "APHA (2011)",
        "Name": "2540 C ~ Total Dissolved Solids Dried at 180oC",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9818\",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "203",
        "Identifier": "2540-D",
        "Context": "APHA",
        "Name": "2540 D ~ Total Suspended Solids in Water",
        "Description": "2540 D ~ Standard Methods . Total Suspended Solids Dried at 103-105<sup>o<\sup>C",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9819\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "204",
        "Identifier": "2540-E",
        "Context": "APHA",
        "Name": "2540 E ~ Fixed and Volatile Solids in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5571",
        "Identifier": "2540-E",
        "Context": "APHA (1997)",
        "Name": "2540 E ~ Fixed and Volatile Solids in Water",
        "Description": "Not current version URL: ",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "205",
        "Identifier": "2540-F",
        "Context": "APHA",
        "Name": "2540 F ~ Settleable Solids in Water",
        "Description": "2540 F ~ Standard Methods . Settleable Solids",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9820\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "206",
        "Identifier": "2540-G",
        "Context": "APHA",
        "Name": "2540 G ~ Total, Fixed and Volatile Solids",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5296",
        "Identifier": "2540C",
        "Context": "APHA_SM22ED",
        "Name": "2540C ~ Solids in Water (Total Dissolved Solids Dried at 180oC)",
        "Description": "2540 C,   Url: https:\\www.standardmethods.org\store\ProductView.cfm?ProductID=63",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-12-16T09:04:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "998",
        "Identifier": "2541",
        "Context": "NIOSH",
        "Name": "Formaldehyde by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "999",
        "Identifier": "2542",
        "Context": "NIOSH",
        "Name": "Methyl-, Ethyl- and n-Butyl Mercaptans",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1000",
        "Identifier": "2543",
        "Context": "NIOSH",
        "Name": "Hexachlorobutadiene by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1001",
        "Identifier": "2544",
        "Context": "NIOSH",
        "Name": "Nicotine by GC\NPD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1002",
        "Identifier": "2545",
        "Context": "NIOSH",
        "Name": "Allyl Glycidyl Ether by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1003",
        "Identifier": "2546",
        "Context": "NIOSH",
        "Name": "Cresol and Phenol by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1844",
        "Identifier": "255.1",
        "Context": "USEPA",
        "Name": "Platinum by FLAA",
        "Description": "255.1 ~ EPA-NERL . Platinum by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5335\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1845",
        "Identifier": "255.2",
        "Context": "USEPA",
        "Name": "Platinum by GFAA",
        "Description": "255.2 ~ EPA-NERL . Platinum by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5303\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "207",
        "Identifier": "2550",
        "Context": "APHA",
        "Name": "Temperature of Water by Thermometer",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4615",
        "Identifier": "2550 B",
        "Context": "APHA",
        "Name": "2550 B ~ Temperature of Water, Laboratory and Field Methods",
        "Description": "2550B \ 2550 B ~ Standard Methods . Temperature of Water, Laboratory and Field Methods",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9829\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "208",
        "Identifier": "2560-B",
        "Context": "APHA",
        "Name": "2560 B ~ Particle Counting by Electrical Sensing",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "209",
        "Identifier": "2560-C",
        "Context": "APHA",
        "Name": "2560 C ~ Particle Counting by Light-Blockage",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "210",
        "Identifier": "2560-D",
        "Context": "APHA",
        "Name": "2560 D ~ Particle Counting by Light-Scattering",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "211",
        "Identifier": "2570-B",
        "Context": "APHA",
        "Name": "2570 B ~ Asbestos in Water by TEM",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1846",
        "Identifier": "258.1",
        "Context": "USEPA",
        "Name": "Potassium by FLAA",
        "Description": "258.1 ~ EPA-NERL . Potassium by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5336\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1847",
        "Identifier": "258.1_M",
        "Context": "USEPA",
        "Name": "258.1 M ~ Potassium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "212",
        "Identifier": "2580",
        "Context": "APHA",
        "Name": "Oxidation-Reduction Potential of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6072",
        "Identifier": "2580B",
        "Context": "APHA",
        "Name": "OXIDATION REDUCTION POTENTIAL",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2017-01\documents\field_capabilities_guidance_january2017.pdf",
        "LastChangeDate": "2026-03-13T19:43:47 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1848",
        "Identifier": "25A",
        "Context": "USEPA",
        "Name": "25 A ~ Total Gaseous Organic Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1849",
        "Identifier": "25B",
        "Context": "USEPA",
        "Name": "25 B ~ Total Gaseous Organic Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1850",
        "Identifier": "25C",
        "Context": "USEPA",
        "Name": "25 C ~ Nonmethane Organics in Landfill Gases",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1851",
        "Identifier": "25D",
        "Context": "USEPA",
        "Name": "25 D ~ Volatile Organic Concentration in Waste",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1852",
        "Identifier": "25E",
        "Context": "USEPA",
        "Name": "25 E ~ Vapor Phase Organic Concentration in Waste",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1853",
        "Identifier": "26",
        "Context": "USEPA",
        "Name": "Hydrogen Chloride from Stationary Sources",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1854",
        "Identifier": "264.1",
        "Context": "USEPA",
        "Name": "Rhenium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1855",
        "Identifier": "264.2",
        "Context": "USEPA",
        "Name": "Rhenium by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1856",
        "Identifier": "265.1",
        "Context": "USEPA",
        "Name": "Rhodium by FLAA",
        "Description": "265.1 ~ EPA-NERL . Rhodium by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5337\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1857",
        "Identifier": "265.2",
        "Context": "USEPA",
        "Name": "Rhodium by GFAA",
        "Description": "265.2 ~ EPA-NERL . Rhodium by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5304\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1858",
        "Identifier": "267.1",
        "Context": "USEPA",
        "Name": "Ruthenium by FLAA",
        "Description": "267.1 ~ EPA-NERL . Ruthenium by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5338\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1859",
        "Identifier": "267.2",
        "Context": "USEPA",
        "Name": "Ruthenium by GFAA",
        "Description": "267.2 ~ EPA-NERL . Ruthenium by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5305\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1860",
        "Identifier": "26A",
        "Context": "USEPA",
        "Name": "26 A ~ Hydrogen Halide\Halogen by Isokinetic",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1861",
        "Identifier": "270.2",
        "Context": "USEPA",
        "Name": "Selenium by GFAA",
        "Description": "270.2 ~ EPA-NERL . Selenium by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5306\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1862",
        "Identifier": "270.2_M",
        "Context": "USEPA",
        "Name": "270.2 M ~ Selenium by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1863",
        "Identifier": "270.3",
        "Context": "USEPA",
        "Name": "Selenium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1864",
        "Identifier": "272.1",
        "Context": "USEPA",
        "Name": "Silver by FLAA",
        "Description": "272.1 ~ EPA-NERL . Silver by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5339\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1865",
        "Identifier": "272.1_M",
        "Context": "USEPA",
        "Name": "272.1 M ~ Silver by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1866",
        "Identifier": "272.2",
        "Context": "USEPA",
        "Name": "Silver by GFAA",
        "Description": "272.2 ~ EPA-NERL . Silver by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5307\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1867",
        "Identifier": "272.2_M",
        "Context": "USEPA",
        "Name": "272.2 M ~ Silver by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1868",
        "Identifier": "273.1",
        "Context": "USEPA",
        "Name": "Sodium by FLAA",
        "Description": "273.1 ~ EPA-NERL . Sodium by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5340\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1869",
        "Identifier": "273.1_M",
        "Context": "USEPA",
        "Name": "273.1 M ~ Sodium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1870",
        "Identifier": "273.2",
        "Context": "USEPA",
        "Name": "Sodium by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1871",
        "Identifier": "279.1",
        "Context": "USEPA",
        "Name": "Thallium by FLAA",
        "Description": "279.1 ~ EPA-NERL . Thallium by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5341\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1872",
        "Identifier": "279.1_M",
        "Context": "USEPA",
        "Name": "279.1 M ~ Thallium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1873",
        "Identifier": "279.2",
        "Context": "USEPA",
        "Name": "Thallium by GFAA",
        "Description": "279.2 ~ EPA-NERL . Thallium by GF-AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5308\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1874",
        "Identifier": "279.2_M",
        "Context": "USEPA",
        "Name": "279.2 M ~ Thallium by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4704",
        "Identifier": "28000-88",
        "Context": "HACH",
        "Name": "28000-88 ~ Arsenic Test Strip",
        "Description": "28000-88 ~ Hach Co. . Arsenic Test Strip",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4829\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "213",
        "Identifier": "2810",
        "Context": "APHA",
        "Name": "Dissolved Gas Supersaturation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1875",
        "Identifier": "282.1",
        "Context": "USEPA",
        "Name": "Tin by FLAA",
        "Description": "282.1 ~ EPA-NERL . Tin by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5342\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1876",
        "Identifier": "282.2",
        "Context": "USEPA",
        "Name": "Tin by GFAA",
        "Description": "282.2 ~ EPA-NERL . Tin by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5309\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1877",
        "Identifier": "283.1",
        "Context": "USEPA",
        "Name": "Titanium by FLAA",
        "Description": "283.1 ~ EPA-NERL . Titanium by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5343\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1878",
        "Identifier": "283.2",
        "Context": "USEPA",
        "Name": "Titanium by GFAA",
        "Description": "283.2 ~ EPA-NERL . Titanium by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5310\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1879",
        "Identifier": "286.1",
        "Context": "USEPA",
        "Name": "Vanadium by FLAA",
        "Description": "286.1 ~ EPA-NERL . Vanadium by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5291\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1880",
        "Identifier": "286.1_M",
        "Context": "USEPA",
        "Name": "286.1 M ~ Vanadium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1881",
        "Identifier": "286.2",
        "Context": "USEPA",
        "Name": "Vanadium by GFAA",
        "Description": "286.2 ~ EPA-NERL . Vanadium by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5311\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1882",
        "Identifier": "286.2_M",
        "Context": "USEPA",
        "Name": "286.2 M ~ Vanadium by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1883",
        "Identifier": "289.1",
        "Context": "USEPA",
        "Name": "Zinc by FLAA",
        "Description": "289.1 ~ EPA-NERL . Zinc by Flame AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5292\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1884",
        "Identifier": "289.1_M",
        "Context": "USEPA",
        "Name": "289.1 M ~ Zinc by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1885",
        "Identifier": "289.2",
        "Context": "USEPA",
        "Name": "Zinc by GFAA",
        "Description": "289.2 ~ EPA-NERL . Zinc by Graphite Furnace AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5312\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1886",
        "Identifier": "289.2_M",
        "Context": "USEPA",
        "Name": "289.2 M ~ Zinc by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1887",
        "Identifier": "29",
        "Context": "USEPA",
        "Name": "Metals Emissions from Stationary Sources",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3220",
        "Identifier": "29-3.5.2",
        "Context": "ASA(2ND ED.)",
        "Name": "29-3.5.2 ~ Organic matter in soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-05-31T17:28:29 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770757",
        "Identifier": "29-B",
        "Context": "PACE LABS",
        "Name": "29-B",
        "Description": "https:\\www.pacelabs.com\assets\documents\Environmental\capabilities-2015.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-06-21T23:08:56 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1888",
        "Identifier": "3",
        "Context": "USEPA",
        "Name": "Gross Alpha and Beta Activity in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "214",
        "Identifier": "3.2-B",
        "Context": "APHA",
        "Name": "3.2 B ~ Coliforms in Seawater and Shellfish",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "215",
        "Identifier": "3.2-C",
        "Context": "APHA",
        "Name": "3.2 C ~ Coliforms in Seawater and Shellfish",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "216",
        "Identifier": "3.2-D",
        "Context": "APHA",
        "Name": "3.2 D ~ Coliforms in Shellfish",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "217",
        "Identifier": "3.3-B",
        "Context": "APHA",
        "Name": "3.3 B ~ Coliforms - Cytochrome Oxidase",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "218",
        "Identifier": "3.3-C",
        "Context": "APHA",
        "Name": "3.3 C ~ Coliforms - IMViC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "219",
        "Identifier": "3.4",
        "Context": "APHA",
        "Name": "Coliforms- Membrane Filter",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "220",
        "Identifier": "3.5",
        "Context": "APHA",
        "Name": "Coliforms- Plate Count",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1889",
        "Identifier": "300(A)",
        "Context": "USEPA",
        "Name": "300 A  ~ Inorganic Anions by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1890",
        "Identifier": "300(B)",
        "Context": "USEPA",
        "Name": "300 B  ~ Inorganic Anions by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4984",
        "Identifier": "300***retired***use 300..0",
        "Context": "USEPA",
        "Name": "DO NOT USE***Inorganic Anions by Ion Chromatography;  duplicate of 300.0 ~ EPA",
        "Description": "DO NOT USE ~ 300 ~ EPA-NERL . Inorganic Anions by Ion Chromatography",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4680\",
        "LastChangeDate": "2022-04-01T03:58:42 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5585",
        "Identifier": "300.0",
        "Context": "USEPA Rev 2.1",
        "Name": "300.0 ~ EPA; Inorganic Anions by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4680\",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3049",
        "Identifier": "300.0",
        "Context": "USEPA",
        "Name": "300.0 ~ EPA; Determination of Inorganic Anions by Ion Chromatography",
        "Description": "300 ~ EPA-NERL . Inorganic Anions by Ion Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4680\",
        "LastChangeDate": "2007-08-20T14:11:57 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3050",
        "Identifier": "300.1",
        "Context": "USEPA",
        "Name": "Determination of Inorganic Anions in Drinking Water by Ion Chromatography",
        "Description": "300.1 ~ EPA-OGWDW\TSC . Anions in Water by IC",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4674\",
        "LastChangeDate": "2007-08-20T14:14:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "878",
        "Identifier": "300.6",
        "Context": "IL\SWSD",
        "Name": "Cl, PO4, NO3 and SO4 - IONCHR",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "879",
        "Identifier": "300.7",
        "Context": "IL\SWSD",
        "Name": "Na, NH4, Mg, K and Ca - IONCHR",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6079",
        "Identifier": "3005A",
        "Context": "USEPA",
        "Name": "ACID DIGESTION OF WATERS FOR TOTAL RECOVERABLE",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\3005a.pdf",
        "LastChangeDate": "2026-03-13T19:43:47 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1891",
        "Identifier": "300_M",
        "Context": "USEPA",
        "Name": "300 M ~ Determination of Anions by IC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6080",
        "Identifier": "3010A",
        "Context": "USEPA",
        "Name": "ACID DIGESTION OF AQUEOUS SAMPLES AND EXTRACTS",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\3010a.pdf",
        "LastChangeDate": "2026-03-13T19:43:47 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6081",
        "Identifier": "3015A",
        "Context": "USEPA",
        "Name": "MICROWAVE ASSISTED ACID DIGESTION OF AQUEOUS SAMPLES AND EXTRACTS",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\3015a.pdf",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4985",
        "Identifier": "302***retired***use 302..0",
        "Context": "USEPA",
        "Name": "DO NOT USE***Bromate in Drinking Water Using 2-D IC With Suppressed Conductivity Detection",
        "Description": "DO NOT USE ~ 302 ~ EPA-OGWDW\TSC . Bromate in Drinking Water Using 2-D IC With Suppressed Conductivity Detection",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10620\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5873",
        "Identifier": "302.0",
        "Context": "USEPA",
        "Name": "Bromate in Drinking Water Using 2-D IC With Suppressed Conductivity Detection",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:08 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6082",
        "Identifier": "3020A",
        "Context": "USEPA",
        "Name": "ACID DIGESTION OF AQUEOUS SAMPLES AND EXTRACTS FOR TOTAL METALS FOR ANALYSIS BY GFAA SPECTROSCOPY",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\3020a.pdf",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4619",
        "Identifier": "3030 E",
        "Context": "APHA",
        "Name": "3030 E ~ Nitric Acid Digestion of Metals",
        "Description": "3030E \ 3030 E ~ Standard Methods . Nitric Acid Digestion of Metals",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4691\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4620",
        "Identifier": "3030 F",
        "Context": "APHA",
        "Name": "3030 F ~ Nitric and Hydrochloric Acid Digestion",
        "Description": "3030F \ 3030 F ~ Standard Methods . Nitric and Hydrochloric Acid Digestion",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4692\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4621",
        "Identifier": "3030 G",
        "Context": "APHA",
        "Name": "3030 G ~ Nitric and Sulfuric Acid Digestion",
        "Description": "3030G \ 3030 G ~ Standard Methods . Nitric and Sulfuric Acid Digestion",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4693\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4622",
        "Identifier": "3030 H",
        "Context": "APHA",
        "Name": "3030 H ~ Nitric and Perchloric Acid Digestion",
        "Description": "3030H \ 3030 H ~ Standard Methods . Nitric and Perchloric Acid Digestion",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4694\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4623",
        "Identifier": "3030 I",
        "Context": "APHA",
        "Name": "3030 I ~ Nitric, Perchloric and Hydrofluoric Acid",
        "Description": "3030I \ 3030 I ~ Standard Methods . Nitric, Perchloric and Hydrofluoric Acid",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4695\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4624",
        "Identifier": "3030 J",
        "Context": "APHA",
        "Name": "3030 J ~ Dry Ashing of Metals Samples",
        "Description": "3030J \ 3030 J ~ Standard Methods . Dry Ashing of Metals Samples",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4696\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4625",
        "Identifier": "3030 K",
        "Context": "APHA",
        "Name": "3030 K ~ Microwave Assisted Digestion of Metals",
        "Description": "3030K \ 3030 K ~ Standard Methods . Microwave Assisted Digestion of Metals",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4697\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4616",
        "Identifier": "3030B",
        "Context": "APHA",
        "Name": "3030 B ~ Preliminary Filtration of Metals Samples",
        "Description": "3030B ~ Standard Methods . Preliminary Filtration of Metals Samples",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4681\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4617",
        "Identifier": "3030C",
        "Context": "APHA",
        "Name": "3030 C ~ Treatment for Acid-Extractable Metals",
        "Description": "3030C ~ Standard Methods . Treatment for Acid-Extractable Metals",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4682\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4618",
        "Identifier": "3030D",
        "Context": "APHA",
        "Name": "3030 D ~ Preliminary Digestion for Metals",
        "Description": "3030D ~ Standard Methods . Preliminary Digestion for Metals",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4683\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1892",
        "Identifier": "3040",
        "Context": "USEPA",
        "Name": "Metals in Oils, Greases and Wax",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1893",
        "Identifier": "304A",
        "Context": "USEPA",
        "Name": "304 A ~ Biodegredation Rates (Vent Option)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1894",
        "Identifier": "304B",
        "Context": "USEPA",
        "Name": "304 B ~ Biodegredation Rates (Scrubber Option)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1895",
        "Identifier": "305",
        "Context": "USEPA",
        "Name": "Emissions of Volatiles in Waste",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1896",
        "Identifier": "305.1",
        "Context": "USEPA",
        "Name": "Acidity by Titration with a pH Meter",
        "Description": "305.1 ~ EPA-NERL . Acidity by Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5229\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1897",
        "Identifier": "305.2",
        "Context": "USEPA",
        "Name": "Acidity by Titration Using a pH Meter",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "110082",
        "Identifier": "3050B",
        "Context": "USEPA",
        "Name": "3050 B ~ Acid Digestion of Sediments, Sludges, and Soils",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2010-12-21T12:09:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6083",
        "Identifier": "3051A",
        "Context": "USEPA",
        "Name": "MICROWAVE ASSISTED ACID DIGESTION OF SEDIMENTS, SLUDGES, SOILS, AND OILS",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\3051a.pdf",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1898",
        "Identifier": "306",
        "Context": "USEPA",
        "Name": "Chromium Emissions from Electroplating",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6084",
        "Identifier": "3060A",
        "Context": "USEPA",
        "Name": "ALKALINE DIGESTION FOR HEXAVALENT CHROMIUM",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\3060a.pdf",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1899",
        "Identifier": "306A",
        "Context": "USEPA",
        "Name": "306 A ~ Chromium Emissions from Electroplating",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5313",
        "Identifier": "307",
        "Context": "NCL",
        "Name": "Pesticide Scan by LC\MS\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-06-04T10:56:33 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770798",
        "Identifier": "31-107-04-3-A",
        "Context": "LACHAT",
        "Name": "31-107-04-3 A ~ LACHAT; Total Nitrogen (brackish\sea water)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-07-09T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5551",
        "Identifier": "31-107-04-4-A",
        "Context": "LACHAT",
        "Name": "31-107-04-4 A ~ LACHAT; Lachat UV Nitrate\Nitrite Conversion Methods for FIA",
        "Description": "http:\\www.lachatinstruments.com\applications\UV-Nitrate-Nitrite-Conversion-Methods.asp",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-06-18T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1900",
        "Identifier": "310.1",
        "Context": "USEPA",
        "Name": "Alkalinity by Titration",
        "Description": "310.1 ~ EPA-NERL . Alkalinity by Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5230\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1901",
        "Identifier": "310.1_M",
        "Context": "USEPA",
        "Name": "310.1 M ~ Alkalinity in Water by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1902",
        "Identifier": "310.2",
        "Context": "USEPA",
        "Name": "310.2 ~ EPA; Alkalinity by Colorimetric Analysis",
        "Description": "310.2 ~ EPA-NERL . Alkalinity by Autoanalyzer",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5231\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743072",
        "Identifier": "310.2",
        "Context": "USEPA Rev (1974)",
        "Name": "310.2 ~ EPA; Alkalinity (Colorimetric, Automated, Methyl Orange) by Autoanalyzer",
        "Description": "https:\\www.epa.gov\sites\production\files\2015-08\documents\method_310-2_1974.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-03-30T18:10:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5598",
        "Identifier": "3111 C***retired***",
        "Context": "APHA",
        "Name": "DO NOT USE***3111 C ~ Metals in Water by FLAA- Extraction\Air-Acetylene Flame",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5599",
        "Identifier": "3111 D***retired***",
        "Context": "APHA",
        "Name": "DO NOT USE***3111 D ~ Metals in Water by FLAA- Direct Nitrous Oxide-Acetylene Flame",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "221",
        "Identifier": "3111-B",
        "Context": "APHA",
        "Name": "3111 B ~ Metals in Water by FLAA- Direct Air-Acetylene Flame",
        "Description": "3111B ~ Standard Methods . Metals in water by FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5703\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "222",
        "Identifier": "3111-C",
        "Context": "APHA",
        "Name": "3111 C ~ Metals in Water by FLAA- Extraction\Air-Acetylene Flame",
        "Description": "3111 C ~ Standard Methods . Metals by Flame Atomic Absorption Spectrometry, Extraction\Air-Acetylene Flame Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9711\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "223",
        "Identifier": "3111-D",
        "Context": "APHA",
        "Name": "3111 D ~ Metals in Water by FLAA- Direct Nitrous Oxide-Acetylene Flame",
        "Description": "3111 D ~ Standard Methods . Metals in water by FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9695\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "224",
        "Identifier": "3111-E",
        "Context": "APHA",
        "Name": "3111 E ~ Metals in Water by FLAA- Extraction\Nitrous Oxide-Acetylene Flame Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5597",
        "Identifier": "3111B***retired***",
        "Context": "APHA",
        "Name": "DO NOT USE***3111 B ~ Metals in Water by FLAA- Direct Air-Acetylene Flame",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5600",
        "Identifier": "3112 B***retired*** 3112-B",
        "Context": "APHA",
        "Name": "DO NOT USE***3112 B ~ Mercury Metals in Water by CV-AAS",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "225",
        "Identifier": "3112-B",
        "Context": "APHA",
        "Name": "3112 B ~ Mercury in Water by CVAA",
        "Description": "3112 B ~ Standard Methods . Metals in Water by CV-AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9737\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5601",
        "Identifier": "3113 B***retired*** 3113-B",
        "Context": "APHA",
        "Name": "DO NOT USE***3113 B ~ Metals in Water by GFAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "226",
        "Identifier": "3113-B",
        "Context": "APHA",
        "Name": "3113 B ~ Metals in Water by GFAA",
        "Description": "3113 B ~ Standard Methods . Metals in Water by GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4698\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5602",
        "Identifier": "3114 B***retired*** 3114-B",
        "Context": "APHA",
        "Name": "DO NOT USE***3114 B ~ Arsenic and Selenium by Hydride Generation\Atomic Absorption Spectrometry",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "227",
        "Identifier": "3114-B",
        "Context": "APHA",
        "Name": "3114 B ~ Metals in Water by Manual HYDAA",
        "Description": "3114 B ~ Standard Methods . Arsenic and Selenium by Hydride Generation\AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9703\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "228",
        "Identifier": "3114-C",
        "Context": "APHA",
        "Name": "3114 C ~ Metals in Water by Continuous HYDAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "229",
        "Identifier": "3120",
        "Context": "APHA",
        "Name": "Metals in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4626",
        "Identifier": "3120 B (TOTAL)",
        "Context": "APHA",
        "Name": "3120 B TOTAL  ~ Metals (total recoverable) in Water by ICP",
        "Description": "3120B \ 3120 B (total) ~ Standard Methods . Metals (total recoverable) in Water by ICP",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4699\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5603",
        "Identifier": "3120 B (dissolved)",
        "Context": "APHA",
        "Name": "Metals (dissolved) in Water by ICP, Metals in Water by Plasma Emission Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4627",
        "Identifier": "3125",
        "Context": "APHA",
        "Name": "Metals in Water by ICP\MS",
        "Description": "3125 ~ Standard Methods . Metals in Water by ICP\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4796\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "230",
        "Identifier": "3130",
        "Context": "APHA",
        "Name": "Metals by Anodic Stripping Voltammetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4986",
        "Identifier": "3135.2I",
        "Context": "USEPA",
        "Name": "3135.2I ~ Cyanide in Water and Soil by Colorimetry",
        "Description": "3135.2I ~ EPA Region 7 ENSV . Cyanide in Water and Soil by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10302\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1903",
        "Identifier": "314",
        "Context": "USEPA",
        "Name": "Perchlorate in Drinking Water using Ion Chromatography",
        "Description": "314 ~ EPA-OGWDW\TSC . Perchlorate in Drinking Water by Ion Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7399\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5291",
        "Identifier": "314-B",
        "Context": "APHA_SM19ED",
        "Name": "314 B ~ Hardness (total)",
        "Description": "Standard Methods (19th ed.) 314B (colorimetric, EDTA titration, manual) mg\L",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-12-09T07:55:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5874",
        "Identifier": "314.0",
        "Context": "USEPA",
        "Name": "Perchlorate in Drinking Water by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:08 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4987",
        "Identifier": "314.1",
        "Context": "USEPA",
        "Name": "Perchlorate in water using inline column IC",
        "Description": "314.1 ~ EPA-OGWDW\TSC . Perchlorate in water using inline column IC",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9800\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4988",
        "Identifier": "317",
        "Context": "USEPA",
        "Name": "Oxyhalide DPBs and Bromide by IC",
        "Description": "317 ~ EPA-OGWDW\TSC . Oxyhalide DPBs and Bromide by IC",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4675\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5875",
        "Identifier": "317.0",
        "Context": "USEPA",
        "Name": "Oxyhalide DPBs and Bromide by IC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:08 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4989",
        "Identifier": "317.0REV2.0",
        "Context": "USEPA",
        "Name": "Inorganic Oxyhalide DBPs in Drinking Water By Ion Chromatography With Conductivity Detection and Trace Bromate Using Pos",
        "Description": "317.0rev2.0 ~ EPA-OGWDW\TSC . Inorganic Oxyhalide DBPs in Drinking Water By Ion Chromatography With Conductivity Detection and Trace Bromate Using Post Column Reagent Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7227\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1904",
        "Identifier": "320.1",
        "Context": "USEPA",
        "Name": "Bromide by Titration with Iodine",
        "Description": "320.1 ~ EPA-NERL . Bromide by Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5232\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4990",
        "Identifier": "321.8",
        "Context": "USEPA",
        "Name": "Bromate by IC\ICP-MS",
        "Description": "321.8 ~ EPA-NERL . Bromate by IC\ICP-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4838\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1905",
        "Identifier": "325.1",
        "Context": "USEPA",
        "Name": "Chloride by Colorimetric Analysis I",
        "Description": "325.1 ~ EPA-NERL . Chloride by Automated Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5771\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1906",
        "Identifier": "325.2",
        "Context": "USEPA",
        "Name": "Chloride by Colorimetric Analysis II",
        "Description": "325.2 ~ EPA-NERL . Chloride by Automated Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5765\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1907",
        "Identifier": "325.3",
        "Context": "USEPA",
        "Name": "Chloride by Mercuric Nitrate Titration",
        "Description": "325.3 ~ EPA-NERL . Chloride by Titrimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5772\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "880",
        "Identifier": "325.6",
        "Context": "IL\SWSD",
        "Name": "Chloride in Wet Deposition",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1908",
        "Identifier": "325_M(A)",
        "Context": "USEPA",
        "Name": "325 M A  ~ Chloride in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1909",
        "Identifier": "325_M(B)",
        "Context": "USEPA",
        "Name": "325 M B  ~ Chloride in Water by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4991",
        "Identifier": "326",
        "Context": "USEPA",
        "Name": "Inorganic Oxyhalide Disinfection By-products in Drinking Water by Ion Chromatography with Postcolumn Reagent for Trace B",
        "Description": "326 ~ EPA-OGWDW\TSC . Inorganic Oxyhalide Disinfection By-products in Drinking Water by Ion Chromatography with Postcolumn Reagent for Trace Bromate Analysis",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7230\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5876",
        "Identifier": "326.0",
        "Context": "USEPA",
        "Name": "Inorganic Oxyhalide Disinfection By-products in Drinking Water by Ion Chromatography with Postcolumn Reagent for Trace Bromate Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:08 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4992",
        "Identifier": "327.0 REV1.1",
        "Context": "USEPA",
        "Name": "327.0 REV1.1 ~ Chlorine Dioxide and Chlorite in Drinking Water by Visible Spectrophotometry",
        "Description": "327.0 rev1.1 ~ EPA-OGWDW\TSC . Chlorine Dioxide and Chlorite in Drinking Water by Visible Spectrophotometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9644\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1910",
        "Identifier": "330.1",
        "Context": "USEPA",
        "Name": "Total Residual Chlorine by Titration",
        "Description": "330.1 ~ EPA-NERL . Total Residual Chlorine by Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5233\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1911",
        "Identifier": "330.2",
        "Context": "USEPA",
        "Name": "Total Residual Chlorine by Titration",
        "Description": "330.2 ~ EPA-NERL . Total Residual Chlorine by Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5234\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1912",
        "Identifier": "330.3",
        "Context": "USEPA",
        "Name": "Total Residual Chlorine by Titration",
        "Description": "330.3 ~ EPA-NERL . Total Residual Chlorine by Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5235\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1913",
        "Identifier": "330.4",
        "Context": "USEPA",
        "Name": "Total Residual Chlorine by Titration",
        "Description": "330.4 ~ EPA-NERL . Total Residual Chlorine by Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5236\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1914",
        "Identifier": "330.5",
        "Context": "USEPA",
        "Name": "Chlorine by Spectrophotometry with DPD",
        "Description": "330.5 ~ EPA-NERL . Total Residual Chlorine by Spectrophotometer",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5237\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4993",
        "Identifier": "331***retired***use 331..0",
        "Context": "USEPA",
        "Name": "DO NOT USE***Perchlorate in water by LC\EMI\MS",
        "Description": "DO NOT USE ~ 331 ~ EPA-TSC\NERL . Perchlorate in water by LC\EMI\MS",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9796\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5877",
        "Identifier": "331.0",
        "Context": "USEPA",
        "Name": "Perchlorate in water by LC\EMI\MS",
        "Description": "",
        "QualifierType": "duplicate",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:08 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4994",
        "Identifier": "332***retired***use 332..0",
        "Context": "USEPA",
        "Name": "DO NOT USE***Perchlorate in drinking water by IC-ESI\MS",
        "Description": "DO NOT USE ~ 332 ~ EPA-NERL . Perchlorate in drinking water by IC-ESI\MS",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9791\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5878",
        "Identifier": "332.0",
        "Context": "USEPA",
        "Name": "Perchlorate in drinking water by IC-ESI\MS",
        "Description": "",
        "QualifierType": "duplicate",
        "URL": "",
        "LastChangeDate": "2021-10-04T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4995",
        "Identifier": "334",
        "Context": "USEPA",
        "Name": "Residual Chlorine in Drinking Water Using an On-Line Chlorine Analyzer",
        "Description": "334 ~ EPA-OGWDW\TSC . Residual Chlorine in Drinking Water Using an On-Line Chlorine Analyzer",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10617\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1915",
        "Identifier": "335.1",
        "Context": "USEPA",
        "Name": "Cyanides Amenable to Chlorination",
        "Description": "335.1 ~ EPA-NERL . Cyanides, amenable to chlorination",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4869\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1916",
        "Identifier": "335.2",
        "Context": "USEPA",
        "Name": "Total Cyanide in Water",
        "Description": "335.2 ~ EPA-NERL . Cyanide, total, in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4700\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1917",
        "Identifier": "335.2(MIDI)",
        "Context": "USEPA",
        "Name": "335.2 MIDI  ~ Cyanide Analysis by MIDI Distillation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1918",
        "Identifier": "335.2_M(S)",
        "Context": "USEPA",
        "Name": "335.2 M S  ~ Total Cyanide in Soils and Sediments",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1919",
        "Identifier": "335.2_MA(W)",
        "Context": "USEPA",
        "Name": "335.2 MA W  ~ Total Cyanide in Water by Colorimetry",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1920",
        "Identifier": "335.2_MB(W)",
        "Context": "USEPA",
        "Name": "335.2 MB W  ~ Total Cyanide in Water by Colorimetry",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1921",
        "Identifier": "335.2_MC(W)",
        "Context": "USEPA",
        "Name": "335.2 MC W  ~ Total Cyanide in Water by Colorimetry",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1922",
        "Identifier": "335.3",
        "Context": "USEPA",
        "Name": "Total Cyanide by Colorimetric Analysis",
        "Description": "335.3 ~ EPA-NERL . Cyanide by Automated Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5404\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1923",
        "Identifier": "335.4",
        "Context": "USEPA",
        "Name": "Cyanide by Semi-Automated Colorimetry",
        "Description": "335.4 ~ EPA-NERL . Cyanide, total, by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5759\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1924",
        "Identifier": "335.63",
        "Context": "USEPA",
        "Name": "Cyanide in Waste by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1925",
        "Identifier": "340.1",
        "Context": "USEPA",
        "Name": "Total Fluoride by Colorimetric Analysis",
        "Description": "340.1 ~ EPA-NERL . Fluoride by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5773\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1926",
        "Identifier": "340.2",
        "Context": "USEPA",
        "Name": "Fluoride in Water Using an ISE",
        "Description": "340.2 ~ EPA-NERL . Fluoride by ISE",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5774\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1928",
        "Identifier": "340.3",
        "Context": "USEPA",
        "Name": "Fluoride in Water by Colorimetry",
        "Description": "340.3 ~ EPA-NERL . Fluoride by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5775\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "881",
        "Identifier": "340.6",
        "Context": "IL\SWSD",
        "Name": "Fluoride in Wet Deposition",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1929",
        "Identifier": "345.1",
        "Context": "USEPA",
        "Name": "Iodide in Water by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4996",
        "Identifier": "349***retired***use 349..0",
        "Context": "USEPA",
        "Name": "DO NOT USE***Ammonia in Estuarine and Coastal Waters by Colorimetry",
        "Description": "DO NOT USE ~ 349 ~ EPA-NERL . Ammonia in Estuarine and Coastal Waters by Colorimetry",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4671\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5879",
        "Identifier": "349.0",
        "Context": "USEPA",
        "Name": "Ammonia in Estuarine and Coastal Waters by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:08 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4755",
        "Identifier": "35-00 (QUANTITATIVE)",
        "Context": "USDOI\USGS",
        "Name": "35-00 QUANTITATIVE  ~ Benthic Macroinvertebrate Sample Processing: Quantitative Fixed-Count Method",
        "Description": "B-9135-00 (Quantitative) ~ USGS-NWQL . Benthic Macroinvertebrate Sample Processing: Quantitative Fixed-Count Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9346\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4757",
        "Identifier": "35-00 (TAXONOMIC ID)",
        "Context": "USDOI\USGS",
        "Name": "35-00 TAXONOMIC ID  ~ Benthic Macroinvertebrate Sample Processing: Taxonomic Identification",
        "Description": "B-9135-00 (Taxonomic ID) ~ USGS-NWQL . Benthic Macroinvertebrate Sample Processing: Taxonomic Identification",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9351\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1930",
        "Identifier": "350.1",
        "Context": "USEPA",
        "Name": "350.1 ~ EPA; Ammonia Nitrogen by Colorimetry",
        "Description": "350.1 ~ EPA-NERL . Ammonia by Automated Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5405\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5586",
        "Identifier": "350.1",
        "Context": "USEPA Rev 2.0",
        "Name": "350.1 ~ EPA; Ammonia by Automated Colorimetry",
        "Description": "",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5405\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5880",
        "Identifier": "350.2 (Nesslerization)**ret 350.2 N",
        "Context": "USEPA",
        "Name": "DO NOT USE***350.2 ~ Ammonia by Colorimetry (Nesslerization)",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4998",
        "Identifier": "350.2 (TITRATION)",
        "Context": "USEPA",
        "Name": "350.2 TITRATION  ~ Ammonia by Titrimetry",
        "Description": "350.2 (Titration) ~ EPA-NERL . Ammonia by Titrimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5399\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4997",
        "Identifier": "350.2 NESSLERIZATION",
        "Context": "USEPA",
        "Name": "350.2 NESSLERIZATION ~ Ammonia by Colorimetry (Nesslerization)",
        "Description": "350.2 (Nesslerization) ~ EPA-NERL . Ammonia by Colorimetry (Nesslerization)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5398\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1931",
        "Identifier": "350.2(A)",
        "Context": "USEPA",
        "Name": "350.2 A  ~ Ammonia Nitrogen Using an ISE",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1932",
        "Identifier": "350.2(B)",
        "Context": "USEPA",
        "Name": "350.2 B  ~ Ammonia Nitrogen by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1933",
        "Identifier": "350.2(C)",
        "Context": "USEPA",
        "Name": "350.2 C  ~ Ammonia Nitrogen by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1934",
        "Identifier": "350.3",
        "Context": "USEPA",
        "Name": "Ammonia Nitrogen Using an ISE",
        "Description": "350.3 ~ EPA-NERL . Ammonia by Potentiometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4871\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1004",
        "Identifier": "3500",
        "Context": "NIOSH",
        "Name": "Formaldehyde by Visible Absorption Spec.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1927",
        "Identifier": "3500",
        "Context": "APHA",
        "Name": "Standard Methods for Metals Introduction",
        "Description": "General introductory guidelines, sample pretreatment, and baseline digestion protocols for metals.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-07-12T14:15:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "231",
        "Identifier": "3500-AG(B)",
        "Context": "APHA",
        "Name": "3500 AG B  ~ Silver in Water by FLAA or GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "232",
        "Identifier": "3500-AG(C)",
        "Context": "APHA",
        "Name": "3500 AG C  ~ Silver in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "233",
        "Identifier": "3500-AG(D)",
        "Context": "APHA",
        "Name": "3500 AG D  ~ Silver in Water by Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "234",
        "Identifier": "3500-AL(B)",
        "Context": "APHA",
        "Name": "3500 AL B  ~ Aluminum in Water by FLAA or GFAA",
        "Description": "3500-Al B ~ Standard Methods . Aluminum by Eriochrome Cyanine R Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7398\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "235",
        "Identifier": "3500-AL(C)",
        "Context": "APHA",
        "Name": "3500 AL C  ~ Aluminum in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "236",
        "Identifier": "3500-AL(D)",
        "Context": "APHA",
        "Name": "3500 AL D  ~ Aluminum in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "237",
        "Identifier": "3500-AL(E)",
        "Context": "APHA",
        "Name": "3500 AL E  ~ Aluminum in Water with an AutoAnalyzer",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "238",
        "Identifier": "3500-AS(B)",
        "Context": "APHA",
        "Name": "3500 AS B  ~ Arsenic in Water by GFAA or HYDAA",
        "Description": "3500-As B ~ Standard Methods . Arsenic by Silver Diethyldithiocarbamate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7433\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "239",
        "Identifier": "3500-AS(C)",
        "Context": "APHA",
        "Name": "3500 AS C  ~ Arsenic in Water by Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "240",
        "Identifier": "3500-AS(D)",
        "Context": "APHA",
        "Name": "3500 AS D  ~ Arsenic in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "241",
        "Identifier": "3500-AU",
        "Context": "APHA",
        "Name": "3500 AU ~ Gold in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5604",
        "Identifier": "3500-Al B***retired*** 3500-AL(B)",
        "Context": "APHA",
        "Name": "DO NOT USE***3500 AL B  ~ Aluminum by Eriochrome Cyanine R Method",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5605",
        "Identifier": "3500-As B***retired*** 3500-AS(B)",
        "Context": "APHA",
        "Name": "DO NOT USE***3500 AS B  ~ Arsenic by Silver Diethyldithiocarbamate",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "242",
        "Identifier": "3500-BA(B)",
        "Context": "APHA",
        "Name": "3500 BA B  ~ Barium in Water by FLAA or GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "243",
        "Identifier": "3500-BA(C)",
        "Context": "APHA",
        "Name": "3500 BA C  ~ Barium in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "244",
        "Identifier": "3500-BE(B)",
        "Context": "APHA",
        "Name": "3500 BE B  ~ Beryllium in Water by FLAA or GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "245",
        "Identifier": "3500-BE(C)",
        "Context": "APHA",
        "Name": "3500 BE C  ~ Beryllium in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "246",
        "Identifier": "3500-BE(D)",
        "Context": "APHA",
        "Name": "3500 BE D  ~ Beryllium in Water by Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "247",
        "Identifier": "3500-BI",
        "Context": "APHA",
        "Name": "3500 BI ~ Bismuth in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "248",
        "Identifier": "3500-CA(B)",
        "Context": "APHA",
        "Name": "3500 CA B  ~ Calcium in Water by FLAA",
        "Description": "3500-Ca B ~ Standard Methods . Calcium by EDTA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7402\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "249",
        "Identifier": "3500-CA(C)",
        "Context": "APHA",
        "Name": "3500 CA C  ~ Calcium in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "250",
        "Identifier": "3500-CA(D)",
        "Context": "APHA",
        "Name": "3500 CA D  ~ Calcium in Water by Titration Using EDTA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "251",
        "Identifier": "3500-CD(B)",
        "Context": "APHA",
        "Name": "3500 CD B  ~ Cadmium in Water by FLAA\GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "252",
        "Identifier": "3500-CD(C)",
        "Context": "APHA",
        "Name": "3500 CD C  ~ Cadmium in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "253",
        "Identifier": "3500-CD(D)",
        "Context": "APHA",
        "Name": "3500 CD D  ~ Cadmium in Water by Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "254",
        "Identifier": "3500-CO(B)",
        "Context": "APHA",
        "Name": "3500 CO B  ~ Cobalt in Water by FLAA or GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "255",
        "Identifier": "3500-CO(C)",
        "Context": "APHA",
        "Name": "3500 CO C  ~ Cobalt in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3153",
        "Identifier": "3500-CR(B)",
        "Context": "APHA_SM21ED",
        "Name": "3500 CR B  ~ Chromium Colormetric Method",
        "Description": "https:\\www.nemi.gov\methods\method_summary\7388\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2008-08-05T15:44:46 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3141",
        "Identifier": "3500-CR(B)",
        "Context": "APHA_SM20ED",
        "Name": "3500 CR B  ~ Chromium Colormetric Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2008-03-14T14:45:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "256",
        "Identifier": "3500-CR(B)",
        "Context": "APHA",
        "Name": "3500 CR B  ~ Chromium in Water by FLAA or GFAA",
        "Description": "3500-Cr B ~ Standard Methods . Chromium by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7388\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "257",
        "Identifier": "3500-CR(C)",
        "Context": "APHA",
        "Name": "3500 CR C  ~ Chromium in Water by ICP",
        "Description": "3500-Cr C ~ Standard Methods . Chromium by Ion Chromatographic Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9723\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "258",
        "Identifier": "3500-CR(D)",
        "Context": "APHA",
        "Name": "3500 CR D  ~ Total Hexavalent Chromium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "259",
        "Identifier": "3500-CR(E)",
        "Context": "APHA",
        "Name": "3500 CR E  ~ Chromium in Water by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "260",
        "Identifier": "3500-CS",
        "Context": "APHA",
        "Name": "3500 CS ~ Cesium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "261",
        "Identifier": "3500-CU(B)",
        "Context": "APHA",
        "Name": "3500 CU B  ~ Copper in Water by FLAA or GFAA",
        "Description": "3500-Cu B ~ Standard Methods . Copper by Neocuproine",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7425\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "262",
        "Identifier": "3500-CU(C)",
        "Context": "APHA",
        "Name": "3500 CU C  ~ Copper in Water by ICP",
        "Description": "3500-Cu C ~ Standard Methods . Copper by Bathocuproine",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7426\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "263",
        "Identifier": "3500-CU(D)",
        "Context": "APHA",
        "Name": "3500 CU D  ~ Copper in Water by Spectrophotometry- Neocuproine Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "264",
        "Identifier": "3500-CU(E)",
        "Context": "APHA",
        "Name": "3500 CU E  ~ Copper in Water by Spectrophotometry- Bathocuproine Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5606",
        "Identifier": "3500-Ca B***retired*** 3500-CA(B)",
        "Context": "APHA",
        "Name": "DO NOT USE***3500 CA B  ~ Calcium by EDTA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5607",
        "Identifier": "3500-Cr B***retired*** 3500-CR(B)",
        "Context": "APHA",
        "Name": "DO NOT USE***3500 CR B  ~ Chromium by Colorimetry",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5608",
        "Identifier": "3500-Cr C***retired*** 3500-CR(C)",
        "Context": "APHA",
        "Name": "DO NOT USE***3500 CR C  ~ Chromium by Colorimetry",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5609",
        "Identifier": "3500-Cu B***retired*** 3500-CU(B)",
        "Context": "APHA",
        "Name": "DO NOT USE***3500 CU B  ~ Copper by Neocuproine",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5610",
        "Identifier": "3500-Cu C***retired*** 3500-CU(C)",
        "Context": "APHA",
        "Name": "DO NOT USE***3500 CU C  ~ Copper by Bathocuproine",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "265",
        "Identifier": "3500-FE(B)",
        "Context": "APHA",
        "Name": "3500 FE B  ~ Iron in Water by FLAA or GFAA",
        "Description": "3500-Fe B ~ Standard Methods . Iron by Phenanthroline",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7421\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "266",
        "Identifier": "3500-FE(C)",
        "Context": "APHA",
        "Name": "3500 FE C  ~ Iron in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "267",
        "Identifier": "3500-FE(D)",
        "Context": "APHA",
        "Name": "3500 FE D  ~ Iron in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5611",
        "Identifier": "3500-Fe B***retired*** 3500-FE(B)",
        "Context": "APHA",
        "Name": "DO NOT USE***3500 FE B  ~ Iron by Phenanthroline",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "268",
        "Identifier": "3500-HG(B)",
        "Context": "APHA",
        "Name": "3500 HG B  ~ Mercury in Water by CVAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "269",
        "Identifier": "3500-HG(C)",
        "Context": "APHA",
        "Name": "3500 HG C  ~ Mercury in Water by Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "270",
        "Identifier": "3500-IR",
        "Context": "APHA",
        "Name": "3500 IR ~ Iridium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5612",
        "Identifier": "3500-K B***retired*** 3500-K-B",
        "Context": "APHA",
        "Name": "DO NOT USE***3500 K B ~ Potassium by Flame Photometry",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "271",
        "Identifier": "3500-K-B",
        "Context": "APHA",
        "Name": "3500 K B ~ Potassium in Water by FLAA",
        "Description": "3500-K B ~ Standard Methods . Potassium by Flame Photometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7397\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "272",
        "Identifier": "3500-K-C",
        "Context": "APHA",
        "Name": "3500 K C ~ Potassium in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "273",
        "Identifier": "3500-K-D",
        "Context": "APHA",
        "Name": "3500 K D ~ Potassium in Water by Flame Photometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "274",
        "Identifier": "3500-K-E",
        "Context": "APHA",
        "Name": "3500 K E ~ Potassium in Water Using an ISE",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "275",
        "Identifier": "3500-LI(B)",
        "Context": "APHA",
        "Name": "3500 LI B  ~ Lithium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "276",
        "Identifier": "3500-LI(C)",
        "Context": "APHA",
        "Name": "3500 LI C  ~ Lithium in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "277",
        "Identifier": "3500-LI(D)",
        "Context": "APHA",
        "Name": "3500 LI D  ~ Lithium in Water by Flame Photometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "278",
        "Identifier": "3500-MG(B)",
        "Context": "APHA",
        "Name": "3500 MG B  ~ Magnesium in Water by FLAA",
        "Description": "3500-Mg B ~ Standard Methods . Magnesium in Water, Calculation Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9747\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "279",
        "Identifier": "3500-MG(C)",
        "Context": "APHA",
        "Name": "3500 MG C  ~ Magnesium in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "280",
        "Identifier": "3500-MG(D)",
        "Context": "APHA",
        "Name": "3500 MG D  ~ Magnesium in Water by Gravimetric Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "281",
        "Identifier": "3500-MG(E)",
        "Context": "APHA",
        "Name": "3500 MG E  ~ Magnesium in Water by Calculation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5614",
        "Identifier": "3500-MN B***retired*** 3500-MN(B)",
        "Context": "APHA",
        "Name": "DO NOT USE***3500 MN B  ~ Manganese in Water by Spectrophotometry",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "282",
        "Identifier": "3500-MN(B)",
        "Context": "APHA",
        "Name": "3500 MN B  ~ Manganese in Water by FLAA or GFAA",
        "Description": "3500-MN B ~ Standard Methods . Manganese in Water by Spectrophotometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4701\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "283",
        "Identifier": "3500-MN(C)",
        "Context": "APHA",
        "Name": "3500 MN C  ~ Manganese in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "284",
        "Identifier": "3500-MN(D)",
        "Context": "APHA",
        "Name": "3500 MN D  ~ Manganese in Water by Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "285",
        "Identifier": "3500-MO(B)",
        "Context": "APHA",
        "Name": "3500 MO B  ~ Molybdenum in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "286",
        "Identifier": "3500-MO(C)",
        "Context": "APHA",
        "Name": "3500 MO C  ~ Molybdenum in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5613",
        "Identifier": "3500-Mg B***retired*** 3500-MG(B)",
        "Context": "APHA",
        "Name": "DO NOT USE***3500 MG B  ~ Manganesium in Water by Spectrophotometry",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "287",
        "Identifier": "3500-NA(B)",
        "Context": "APHA",
        "Name": "3500 NA B  ~ Sodium in Water by FLAA",
        "Description": "3500-Na B ~ Standard Methods . Sodium by Flame Emission Photometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7386\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "288",
        "Identifier": "3500-NA(C)",
        "Context": "APHA",
        "Name": "3500 NA C  ~ Sodium in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "289",
        "Identifier": "3500-NA(D)",
        "Context": "APHA",
        "Name": "3500 NA D  ~ Sodium in Water by Flame Photometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "290",
        "Identifier": "3500-NI(B)",
        "Context": "APHA",
        "Name": "3500 NI B  ~ Nickel in Water by FLAA or GFAA",
        "Description": "3500-Ni B ~ Standard Methods . Nickel in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9805\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "291",
        "Identifier": "3500-NI(C)",
        "Context": "APHA",
        "Name": "3500 NI C  ~ Nickel in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5615",
        "Identifier": "3500-Na B***retired*** 3500-NA(B)",
        "Context": "APHA",
        "Name": "DO NOT USE***3500 NA B  ~ Sodium by Flame Emission Photometry",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5616",
        "Identifier": "3500-Ni B***retired*** 3500-NI(B)",
        "Context": "APHA",
        "Name": "DO NOT USE***3500 NI B  ~ Nickel by Flame Emission Photometry",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "292",
        "Identifier": "3500-OS",
        "Context": "APHA",
        "Name": "3500 OS ~ Osmium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "293",
        "Identifier": "3500-PB(B)",
        "Context": "APHA",
        "Name": "3500 PB B  ~ Lead in Water by FLAA or GFAA",
        "Description": "3500-Pb B ~ Standard Methods . Lead by Dithizone",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7396\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "294",
        "Identifier": "3500-PB(C)",
        "Context": "APHA",
        "Name": "3500 PB C  ~ Lead in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "295",
        "Identifier": "3500-PB(D)",
        "Context": "APHA",
        "Name": "3500 PB D  ~ Lead in Water by Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "296",
        "Identifier": "3500-PD",
        "Context": "APHA",
        "Name": "3500 PD ~ Palladium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "297",
        "Identifier": "3500-PT",
        "Context": "APHA",
        "Name": "3500 PT ~ Platinum in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5617",
        "Identifier": "3500-Pb B***retired*** 3500-PB(B)",
        "Context": "APHA",
        "Name": "DO NOT USE***3500 PB B  ~ Lead by Dithizone",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "298",
        "Identifier": "3500-RE",
        "Context": "APHA",
        "Name": "3500 RE ~ Rhenium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "299",
        "Identifier": "3500-RH",
        "Context": "APHA",
        "Name": "3500 RH ~ Rhodium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "300",
        "Identifier": "3500-RU",
        "Context": "APHA",
        "Name": "3500 RU ~ Ruthenium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "301",
        "Identifier": "3500-SB(B)",
        "Context": "APHA",
        "Name": "3500 SB B  ~ Antimony in Water by FLAA or GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "302",
        "Identifier": "3500-SB(C)",
        "Context": "APHA",
        "Name": "3500 SB C  ~ Antimony in Water - ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "303",
        "Identifier": "3500-SE(C)",
        "Context": "APHA",
        "Name": "3500 SE C  ~ Selenium in Water by HYDAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "304",
        "Identifier": "3500-SE(D)",
        "Context": "APHA",
        "Name": "3500 SE D  ~ Selenium in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "305",
        "Identifier": "3500-SE(E)",
        "Context": "APHA",
        "Name": "3500 SE E  ~ Selenium in Water by Fluorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "306",
        "Identifier": "3500-SE(F)",
        "Context": "APHA",
        "Name": "3500 SE F  ~ Volatile Selenium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "307",
        "Identifier": "3500-SE(G)",
        "Context": "APHA",
        "Name": "3500 SE G  ~ Nonvolatile Organic Selenium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "308",
        "Identifier": "3500-SE(H)",
        "Context": "APHA",
        "Name": "3500 SE H  ~ Selenium in Water by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "309",
        "Identifier": "3500-SE(I)",
        "Context": "APHA",
        "Name": "3500 SE I  ~ Selenium in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "310",
        "Identifier": "3500-SN",
        "Context": "APHA",
        "Name": "3500 SN ~ Tin in Water by FLAA or GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "311",
        "Identifier": "3500-SR(B)",
        "Context": "APHA",
        "Name": "3500 SR B  ~ Strontium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "312",
        "Identifier": "3500-SR(C)",
        "Context": "APHA",
        "Name": "3500 SR C  ~ Strontium in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "313",
        "Identifier": "3500-SR(D)",
        "Context": "APHA",
        "Name": "3500 SR D  ~ Strontium in Water by Flame Photometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "314",
        "Identifier": "3500-TH",
        "Context": "APHA",
        "Name": "3500 TH ~ Thorium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "315",
        "Identifier": "3500-TI",
        "Context": "APHA",
        "Name": "3500 TI ~ Titanium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "316",
        "Identifier": "3500-TL(B)",
        "Context": "APHA",
        "Name": "3500 TL B  ~ Thallium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "317",
        "Identifier": "3500-TL(C)",
        "Context": "APHA",
        "Name": "3500 TL C  ~ Thallium in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5618",
        "Identifier": "3500-V B***retired*** 3500-V-B",
        "Context": "APHA",
        "Name": "DO NOT USE***3500 V B ~ Vanadium by Gallic Acid Method",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "318",
        "Identifier": "3500-V-B",
        "Context": "APHA",
        "Name": "3500 V B ~ Vanadium in Water by FLAA",
        "Description": "3500-V B ~ Standard Methods . Vanadium by Gallic Acid Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7434\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "319",
        "Identifier": "3500-V-C",
        "Context": "APHA",
        "Name": "3500 V C ~ Vanadium in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "320",
        "Identifier": "3500-V-D",
        "Context": "APHA",
        "Name": "3500 V D ~ Vanadium in Water by Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "321",
        "Identifier": "3500-ZN(B)",
        "Context": "APHA",
        "Name": "3500 ZN B  ~ Zinc in Water by FLAA",
        "Description": "3500-Zn B ~ Standard Methods . Zinc by Zincon Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7387\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "322",
        "Identifier": "3500-ZN(C)",
        "Context": "APHA",
        "Name": "3500 ZN C  ~ Zinc in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "323",
        "Identifier": "3500-ZN(D)",
        "Context": "APHA",
        "Name": "3500 ZN D  ~ Zinc in Water by Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "324",
        "Identifier": "3500-ZN(E)",
        "Context": "APHA",
        "Name": "3500 ZN E  ~ Zinc in Water by Spectrophotometry- Dithizone Method",
        "Description": "3500-Zn E ~ Standard Methods . Zinc in Water by Coloimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9833\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "325",
        "Identifier": "3500-ZN(F)",
        "Context": "APHA",
        "Name": "3500 ZN F  ~ Zinc in Water by Spectrophotometry- Dithizone Method II",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5619",
        "Identifier": "3500-Zn B***retired*** 3500-ZN(B)",
        "Context": "APHA",
        "Name": "DO NOT USE***3500 ZN B  ~ Zinc by Zincon Method",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5620",
        "Identifier": "3500-Zn E***retired*** 3500-ZN(E)",
        "Context": "APHA",
        "Name": "DO NOT USE***3500 ZN E  ~ Zinc by Zincon Method",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1005",
        "Identifier": "3503",
        "Context": "NIOSH",
        "Name": "Hydrazine by Visible Absorption Spec.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1006",
        "Identifier": "3505",
        "Context": "NIOSH",
        "Name": "Tetramethyl Thiourea by Visible Absorption",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1007",
        "Identifier": "3506",
        "Context": "NIOSH",
        "Name": "Acetic Anhydride",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1008",
        "Identifier": "3507",
        "Context": "NIOSH",
        "Name": "Acetaldehyde by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1009",
        "Identifier": "3508",
        "Context": "NIOSH",
        "Name": "Methyl Ethyl Ketone Peroxide by VA Spec.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1010",
        "Identifier": "3509",
        "Context": "NIOSH",
        "Name": "Amioethanol compound II",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1935",
        "Identifier": "350_M(A)",
        "Context": "USEPA",
        "Name": "350 M A  ~ Ammonia Nitrogen in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1936",
        "Identifier": "350_M(B)",
        "Context": "USEPA",
        "Name": "350 M B  ~ Ammonia Nitrogen in Water by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1937",
        "Identifier": "350_M(C)",
        "Context": "USEPA",
        "Name": "350 M C  ~ Ammonia Nitrogen in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1938",
        "Identifier": "351.1",
        "Context": "USEPA",
        "Name": "Total Kjeldahl Nitrogen by Colorimetry",
        "Description": "351.1 ~ EPA-NERL . TKN by Automated Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4872\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1939",
        "Identifier": "351.2",
        "Context": "USEPA",
        "Name": "351.2 ~ EPA; Total Kjeldahl Nitrogen by Colorimetry",
        "Description": "351.2 ~ EPA-ORD \ EPA-OST . Total Kjeldahl nitrogen in water by semiautomated colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9626\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5587",
        "Identifier": "351.2",
        "Context": "USEPA Rev 2.0",
        "Name": "351.2 ~ EPA; Total Kjeldahl nitrogen in water by semiautomated colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9626\",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4999",
        "Identifier": "351.3 (ELECTRODE)",
        "Context": "USEPA",
        "Name": "351.3 ELECTRODE  ~ Total Kjeldahl Nitrogen by Potentiometry",
        "Description": "351.3 (Electrode) ~ EPA-NERL . Total Kjeldahl Nitrogen by Potentiometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5402\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5001",
        "Identifier": "351.3 (TITRATION)",
        "Context": "USEPA",
        "Name": "351.3 TITRATION  ~ Total Kjeldahl Nitrogen by Titirmetry",
        "Description": "351.3 (Titration) ~ EPA-NERL . Total Kjeldahl Nitrogen by Titirmetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5401\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5000",
        "Identifier": "351.3 NESSLERIZATION",
        "Context": "USEPA",
        "Name": "351.3 NESSLERIZATION ~ Total Kjeldahl Nitrogen by Colorimetry",
        "Description": "351.3 (Nesslerization) ~ EPA-NERL . Total Kjeldahl Nitrogen by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5400\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1940",
        "Identifier": "351.3(A)",
        "Context": "USEPA",
        "Name": "351.3 A  ~ Total Kjeldahl Nitrogen by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1941",
        "Identifier": "351.3(B)",
        "Context": "USEPA",
        "Name": "351.3 B  ~ Total Kjeldahl Nitrogen - Nesslerization",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1942",
        "Identifier": "351.3(C)",
        "Context": "USEPA",
        "Name": "351.3 C  ~ Total Kjeldahl Nitrogen - Potentiometric",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1943",
        "Identifier": "351.4",
        "Context": "USEPA",
        "Name": "Total Kjeldahl Nitrogen Using an ISE",
        "Description": "351.4 ~ EPA-NERL . TKN by ISE",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4874\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1011",
        "Identifier": "3510",
        "Context": "NIOSH",
        "Name": "Monomethylhydrazine by Visible Spec.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "883842",
        "Identifier": "3510C",
        "Context": "USEPA",
        "Name": "SEPARATORY FUNNEL LIQUID-LIQUID EXTRACTION",
        "Description": "https:\\www.epa.gov\hw-sw846\sw-846-test-method-3510c-separatory-funnel-liquid-liquid-extraction",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-12-13T18:54:09 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1012",
        "Identifier": "3511",
        "Context": "NIOSH",
        "Name": "Monomethylaniline by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1013",
        "Identifier": "3512",
        "Context": "NIOSH",
        "Name": "Maleic Anhydride by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1014",
        "Identifier": "3513",
        "Context": "NIOSH",
        "Name": "Tetranitromethane by GC\NPD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1015",
        "Identifier": "3514",
        "Context": "NIOSH",
        "Name": "Ethylenimine by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1016",
        "Identifier": "3515",
        "Context": "NIOSH",
        "Name": "1,1-Dimethylhydrazine by Visible Spec.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1017",
        "Identifier": "3516",
        "Context": "NIOSH",
        "Name": "Crotonaldehyde by Differential Pulse Polar.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1018",
        "Identifier": "3518",
        "Context": "NIOSH",
        "Name": "Phenylhydrazine by Visible Absorption",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1944",
        "Identifier": "352.1",
        "Context": "USEPA",
        "Name": "Nitrate Nitrogen by Colorimetry",
        "Description": "352.1 ~ EPA-NERL . Nitrate by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5776\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5002",
        "Identifier": "3520C",
        "Context": "USEPA",
        "Name": "3520C ~ Continuous Liquid-Liquid Extraction of Organics",
        "Description": "3520C ~ EPA-RCA . Continuous Liquid-Liquid Extraction of Organics",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9185\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1945",
        "Identifier": "353.1",
        "Context": "USEPA",
        "Name": "Nitrate-Nitrite Nitrogen by Colorimetry",
        "Description": "353.1 ~ EPA-NERL . Nitrate-Nitrite by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5250\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5904",
        "Identifier": "353.2",
        "Context": "USEPA Rev 2.0",
        "Name": "Determination of Nitrate-Nitrite Nitrogen by Automated Colorimetry",
        "Description": "https:\\www.epa.gov\sites\default\files\2015-08\documents\method_353-2_1993.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-12-30T23:48:28 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1946",
        "Identifier": "353.2",
        "Context": "USEPA",
        "Name": "Nitrate-Nitrite Nitrogen by Colorimetry",
        "Description": "353.2 ~ EPA-NERL . Nitrate-Nitrite Nitrogen by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4702\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1947",
        "Identifier": "353.2_M",
        "Context": "USEPA",
        "Name": "353.2 M ~ Nitrate and Nitrite by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1948",
        "Identifier": "353.3",
        "Context": "USEPA",
        "Name": "Nitrate-Nitrite Nitrogen by Cd Reduction",
        "Description": "353.3 ~ EPA-NERL . Nitrate-Nitrite by Cadmium Reduction and Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5251\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1949",
        "Identifier": "353.4",
        "Context": "USEPA",
        "Name": "Determination of Nitrite and Nitrate",
        "Description": "353.4 ~ EPA-NERL . Nitrate and Nitrite in Estuarine and Coastal Waters by Automated Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7225\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "882",
        "Identifier": "353.6",
        "Context": "IL\SWSD",
        "Name": "Nitrate-Nitrite in Wet Deposition",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5003",
        "Identifier": "3535A",
        "Context": "USEPA",
        "Name": "3535A ~ Solid-phase extraction for organic analytes.",
        "Description": "3535A ~ EPA-RCA . Solid-phase extraction for organic analytes.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9187\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1950",
        "Identifier": "354.1",
        "Context": "USEPA",
        "Name": "Nitrite Nitrogen by Spectophotometry",
        "Description": "354.1 ~ EPA-NERL . Nitrite by Spectrophotometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5777\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6085",
        "Identifier": "3540C",
        "Context": "USEPA",
        "Name": "SOXHLET EXTRACTION",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\3540c.pdf",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6086",
        "Identifier": "3541",
        "Context": "USEPA",
        "Name": "AUTOMATED SOXHLET EXTRACTION",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\3541.pdf",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6087",
        "Identifier": "3546",
        "Context": "USEPA",
        "Name": "MICROWAVE EXTRACTION",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\3546.pdf",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5308",
        "Identifier": "3550A",
        "Context": "USEPA",
        "Name": "3550 A ~ Ultrasonic Extraction of Nonvolatile and Semivolatile Organic Compounds form Soils, Sludges, and Wastes",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-05-11T11:53:26 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6055",
        "Identifier": "3550B",
        "Context": "USEPA",
        "Name": "3550 B ~ USEPA; Nonvolatile and Semivolatile Organic Compounds in Solids by Ultrasonic Extraction",
        "Description": "Ultrasonic Extraction, http:\\www.cromlab.es\Articulos\Metodos\EPA\3000\3550B.PDF",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2024-09-18T15:28:29 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5307",
        "Identifier": "3550C",
        "Context": "USEPA",
        "Name": "3550 C ~ Determination of Percent Solids by Ultrasonic Extraction",
        "Description": "http:\\www.epa.gov\solidwaste\hazard\testmethods\sw846\pdfs\3550c.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-05-05T11:49:43 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5004",
        "Identifier": "3570",
        "Context": "USEPA",
        "Name": "Organic Compounds from Solids by Microscale Solvent Extraction",
        "Description": "3570 ~ EPA-RCA . Organic Compounds from Solids by Microscale Solvent Extraction",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10301\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5881",
        "Identifier": "3571",
        "Context": "USEPA",
        "Name": "(SW-846): Extraction of Solid and Aqueous samples for chemical agents",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:08 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6088",
        "Identifier": "3580A",
        "Context": "USEPA",
        "Name": "WASTE DILUTION",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\3580a.pdf",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6089",
        "Identifier": "3585",
        "Context": "USEPA",
        "Name": "WASTE DILUTION FOR VOLATILE ORGANICS",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\3585.pdf",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1951",
        "Identifier": "360.1",
        "Context": "USEPA",
        "Name": "Dissolved Oxygen Using an ISE",
        "Description": "360.1 ~ EPA-NERL . Dissolve Oxygen by Membrane Electrode",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5252\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1952",
        "Identifier": "360.2",
        "Context": "USEPA",
        "Name": "Dissolved Oxygen by Winkler Technique",
        "Description": "360.2 ~ EPA-NERL . Dissolved Oxygen Using a Modified Winkler Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5253\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6090",
        "Identifier": "3610B",
        "Context": "USEPA",
        "Name": "ALUMINA CLEANUP",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\3610b.pdf",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "763129",
        "Identifier": "3611B",
        "Context": "USEPA",
        "Name": "3611 B ~ Diesel Range Organics by Alumina Column Cleanup",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-10-31T17:54:02 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6091",
        "Identifier": "3620C",
        "Context": "USEPA",
        "Name": "FLORISIL CLEANUP",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\3620c.pdf",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "763131",
        "Identifier": "3630C",
        "Context": "USEPA",
        "Name": "3630 C ~ Diesel Range Organics by Silica Gel Cleanup",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-10-31T17:54:02 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3159",
        "Identifier": "3640A",
        "Context": "USEPA",
        "Name": "3640 A ~ Determination of Percent Solids (Context = SW-846)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2008-11-12T10:59:28 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5905",
        "Identifier": "365.1",
        "Context": "USEPA Rev 2.0",
        "Name": "Determination of Phosphorus by Semi-Automated Colorimetry",
        "Description": "https:\\www.epa.gov\sites\default\files\2015-08\documents\method_365-1_1993.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-12-30T23:48:28 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1953",
        "Identifier": "365.1",
        "Context": "USEPA",
        "Name": "Phosphorus by Colorimetry",
        "Description": "365.1 ~ EPA-NERL . Phosphorus (all forms) by Semi-Automated Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4823\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1954",
        "Identifier": "365.2",
        "Context": "USEPA",
        "Name": "Phosphorus by Single Reagent Colorimetry",
        "Description": "365.2 ~ EPA-NERL . Phosphorus by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5254\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1955",
        "Identifier": "365.3",
        "Context": "USEPA",
        "Name": "Phosphorus by Two Reagent Colorimetry",
        "Description": "365.3 ~ EPA-NERL . Phosphorus by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5255\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1956",
        "Identifier": "365.4",
        "Context": "USEPA",
        "Name": "Total Phosphorus After Block Digestion",
        "Description": "365.4 ~ EPA-NERL . Phosphorus by Automated Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5313\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1957",
        "Identifier": "365.5",
        "Context": "USEPA",
        "Name": "Orthophosphate in Water by Colorimetry",
        "Description": "365.5 ~ EPA-NERL . Orthophosphate in Estuarine and Coastal Waters by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7231\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "883",
        "Identifier": "365.6",
        "Context": "IL\SWSD",
        "Name": "Orthophosphate in Wet Deposition",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "763130",
        "Identifier": "3650B",
        "Context": "USEPA",
        "Name": "3650 B ~ Diesel Range Organics by Acid\Base Partitioning",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-10-31T17:54:02 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1958",
        "Identifier": "365_M",
        "Context": "USEPA",
        "Name": "365 M ~ Phosphorus in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5005",
        "Identifier": "366***retired***use 366..0",
        "Context": "USEPA",
        "Name": "DO NOT USE***Silicate by Colorimetry;  duplicate of 366.0 ~ EPA",
        "Description": "DO NOT USE ~ 366 ~ EPA-NERL . Silicate by Colorimetry",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4661\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3223",
        "Identifier": "366.0",
        "Context": "USEPA",
        "Name": "366.0 ~ EPA; Determination of Dissolved Silicate in Estuarine and Coastal Waters by Gas Segmented Continuous Flow Colorimetric Analysis",
        "Description": "366 ~ EPA-NERL . Silicate by Colorimetry",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-07-02T16:56:44 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6092",
        "Identifier": "3660B",
        "Context": "USEPA",
        "Name": "SULFUR CLEANUP",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\3660b.pdf",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6093",
        "Identifier": "3665A",
        "Context": "USEPA",
        "Name": "SULFURIC ACID\PERMANGANATE CLEANUP",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\3665a.pdf",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1959",
        "Identifier": "370.1",
        "Context": "USEPA",
        "Name": "Dissolved Silica by Colorimetry",
        "Description": "370.1 ~ EPA-NERL . Silica by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5314\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1019",
        "Identifier": "3700",
        "Context": "NIOSH",
        "Name": "Benzene by portable GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1020",
        "Identifier": "3701",
        "Context": "NIOSH",
        "Name": "Trichloroethylene by portable GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1021",
        "Identifier": "3702",
        "Context": "NIOSH",
        "Name": "Ethylene Oxide by portable GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1960",
        "Identifier": "375.1",
        "Context": "USEPA",
        "Name": "Sulfate by Colorimetry With Chloranilate",
        "Description": "375.1 ~ EPA-NERL . Sulfate by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5315\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1961",
        "Identifier": "375.2",
        "Context": "USEPA",
        "Name": "Sulfate in Water by Colorimetry",
        "Description": "375.2 ~ EPA-NERL . Sulfate by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4824\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1962",
        "Identifier": "375.3",
        "Context": "USEPA",
        "Name": "Sulfate by Gravimetric Determination",
        "Description": "375.3 ~ EPA-NERL . Sulfate by Gravimetric Determination",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4703\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1963",
        "Identifier": "375.4",
        "Context": "USEPA",
        "Name": "Sulfate by Turbidimetric Determination",
        "Description": "375.4 ~ EPA-NERL . Sulfate by Turbidity",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5316\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "884",
        "Identifier": "375.6",
        "Context": "IL\SWSD",
        "Name": "Sulfate in Wet Deposition",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1964",
        "Identifier": "375_M(A)",
        "Context": "USEPA",
        "Name": "375 M A  ~ Sulfate by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1965",
        "Identifier": "375_M(B)",
        "Context": "USEPA",
        "Name": "375 M B  ~ Sulfate in Water by Turbidity",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1966",
        "Identifier": "376.1",
        "Context": "USEPA",
        "Name": "Sulfide by Titration with Iodine",
        "Description": "376.1 ~ EPA-NERL . Sulfide by Titrimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5317\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1967",
        "Identifier": "376.2",
        "Context": "USEPA",
        "Name": "Sulfide by Colorimetric Determination",
        "Description": "376.2 ~ EPA-NERL . Sulfide by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5318\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5006",
        "Identifier": "376.3",
        "Context": "USEPA",
        "Name": "Acid Volatile Sulfide (AVS) in Sediment by Acidification and Gravimetry.",
        "Description": "376.3 ~ EPA-OW\OST . Acid Volatile Sulfide (AVS) in Sediment by Acidification and Gravimetry.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10268\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1968",
        "Identifier": "377.1",
        "Context": "USEPA",
        "Name": "Sulfite in Water by Titration",
        "Description": "377.1 ~ EPA-NERL . Sulfite by Titrimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5325\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5241",
        "Identifier": "380-75WE",
        "Context": "Technicon",
        "Name": "380-75 WE ~ Fluoride in Water and Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-11-18T13:44:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1969",
        "Identifier": "3810",
        "Context": "USEPA",
        "Name": "Headspace Technique for Volatiles",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1970",
        "Identifier": "3820",
        "Context": "USEPA",
        "Name": "Hexadecane Screening for Volatiles",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743087",
        "Identifier": "390-A",
        "Context": "APHA",
        "Name": "390 A ~ Hardness Calculation Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-12-05T15:36:43 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1971",
        "Identifier": "3A",
        "Context": "USEPA",
        "Name": "3A ~ Oxygen and Carbon Dioxide in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764607",
        "Identifier": "3C",
        "Context": "USEPA",
        "Name": "3C ~ Carbon Dioxide, Methane, Nitrogen, and Oxygen in Air",
        "Description": "https:\\www.epa.gov\sites\production\files\2017-08\documents\method_3c.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-02-14T14:36:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1225",
        "Identifier": "3H-01",
        "Context": "USDOE\EML",
        "Name": "3H-01 ~ Tritium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1226",
        "Identifier": "3H-02",
        "Context": "USDOE\EML",
        "Name": "3H-02 ~ Tritium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1227",
        "Identifier": "3H-03",
        "Context": "USDOE\EML",
        "Name": "3H-03 ~ Organically Labeled Tritium",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4733",
        "Identifier": "3H-04-RC",
        "Context": "USDOE\EML",
        "Name": "3H-04 RC ~ Tritium in Water - Liquid Scintillation Counting",
        "Description": "3H-04-RC ~ DOE EML . Tritium in Water - Liquid Scintillation Counting",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4843\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1972",
        "Identifier": "4",
        "Context": "USEPA",
        "Name": "Moisture Content in Stack Gases",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1022",
        "Identifier": "4000",
        "Context": "NIOSH",
        "Name": "Toluene by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5279",
        "Identifier": "4024-01",
        "Context": "LaMOTTE",
        "Name": "4024-01 ~ Phosphorus, Total - Ascorbic Acid Reduction with Persulfate Digestion method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-10-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5278",
        "Identifier": "4026-01",
        "Context": "LaMOTTE",
        "Name": "4026-01 ~ Nitrogen, Total - Chromotropic Acid with Persulfate Block Digestion Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-10-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5290",
        "Identifier": "403",
        "Context": "APHA_SM19ED",
        "Name": "Alkalinity (CaCO3)",
        "Description": "Standard Methods (19th ed.) 403 (colorimetric, titration, manual) mg\L",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-12-09T07:55:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1973",
        "Identifier": "405.1",
        "Context": "USEPA",
        "Name": "5 Day Biochemical Oxygen Demand",
        "Description": "405.1 ~ EPA-NERL . Biochemical Oxygen Demand",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5326\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1974",
        "Identifier": "410.1",
        "Context": "USEPA",
        "Name": "Mid-Level Chemical Oxygen Demand",
        "Description": "410.1 ~ EPA-NERL . Chemical Oxygen Demand by Titrimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5261\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1975",
        "Identifier": "410.2",
        "Context": "USEPA",
        "Name": "Low Level Chemical Oxygen Demand",
        "Description": "410.2 ~ EPA-NERL . Chemical Oxygen Demand by Titrimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5262\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1976",
        "Identifier": "410.3",
        "Context": "USEPA",
        "Name": "Chemical Oxygen Demand in Saline Waters",
        "Description": "410.3 ~ EPA-NERL . Chemical Oxygen Demand in Saline Waters by Titrimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5263\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5588",
        "Identifier": "410.4",
        "Context": "USEPA Rev 2.0",
        "Name": "410.4 ~ EPA; Chemical oxygen demand in water by colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9627\",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1977",
        "Identifier": "410.4",
        "Context": "USEPA",
        "Name": "410.4 ~ EPA; Chemical Oxygen Demand by Colorimetry",
        "Description": "410.4 ~ EPA-ORD \ EPA-OST . Chemical oxygen demand in water by colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9627\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764634",
        "Identifier": "4102",
        "Context": "ASM",
        "Name": "Detection of Anatoxin-a(s) in Environmental Samples of Cyanobacteria by Using a Biosensor with Engineered Acetylcholines",
        "Description": "https:\\aem.asm.org\content\aem\68\8\4102.full.pdf  https:\\aem.asm.org\content\68\8\4102",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-03-21T11:45:43 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1978",
        "Identifier": "410_M(A)",
        "Context": "USEPA",
        "Name": "410 M A  ~ Chemical Oxygen Demand by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1979",
        "Identifier": "410_M(B)",
        "Context": "USEPA",
        "Name": "410 M B  ~ Chemical Oxygen Demand by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "326",
        "Identifier": "4110-B",
        "Context": "APHA",
        "Name": "4110 B ~ Anions in Water by Ion Chromatography",
        "Description": "4110B ~ Standard Methods . Anions in Water by Ion Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7428\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "327",
        "Identifier": "4110-C",
        "Context": "APHA",
        "Name": "4110 C ~ Single Column Ion Chromatography",
        "Description": "4110C ~ Standard Methods . Anions in Water by Ion Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5705\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5621",
        "Identifier": "4110B***retired*** 4110-B",
        "Context": "APHA",
        "Name": "DO NOT USE***4110 B ~ Anions in Water by Ion Chromatography",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5622",
        "Identifier": "4110C***retired*** 4110-C",
        "Context": "APHA",
        "Name": "DO NOT USE***4110 C ~ Anions in Water by Ion Chromatography",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4628",
        "Identifier": "4110D",
        "Context": "APHA",
        "Name": "4110D ~ Anions in Water by Ion Chromatography",
        "Description": "4110D ~ Standard Methods . Anions in Water by Ion Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5706\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1980",
        "Identifier": "413.1",
        "Context": "USEPA",
        "Name": "Total Recoverable Oil and Grease",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1981",
        "Identifier": "413.2",
        "Context": "USEPA",
        "Name": "Total Recoverable Oil and Grease by IR",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1982",
        "Identifier": "415.1",
        "Context": "USEPA",
        "Name": "Total Organic Carbon by Combustion",
        "Description": "415.1 ~ EPA-NERL . Total Organic Carbon",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5403\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1983",
        "Identifier": "415.2",
        "Context": "USEPA",
        "Name": "Low Level Total Organic Carbon in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1984",
        "Identifier": "415.2_M",
        "Context": "USEPA",
        "Name": "415.2 M ~ Total Organic Carbon in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "606203",
        "Identifier": "415.3",
        "Context": "USEPA",
        "Name": "Determination of Total Organic Carbon and Specific UV Absorbance at 254 nm in Source Water and Drinking Water",
        "Description": "415.3 ~ EPA-NERL . Dissolved and Total Organic Carbon and UV Absorbance at 254 nm in Source Water and Drinking Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7228\",
        "LastChangeDate": "2011-09-20T14:43:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1985",
        "Identifier": "418.1",
        "Context": "USEPA",
        "Name": "Total Recoverable Petroleum Hydrocarbons",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1986",
        "Identifier": "420.1",
        "Context": "USEPA",
        "Name": "Total Recoverable Phenolics in Water",
        "Description": "420.1 ~ EPA-NERL . Phenols by Spectrophotometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5264\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1987",
        "Identifier": "420.2",
        "Context": "USEPA",
        "Name": "Total Recoverable Phenolics in Water",
        "Description": "420.2 ~ EPA-NERL . Phenolics by Automated Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5265\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1988",
        "Identifier": "420.3",
        "Context": "USEPA",
        "Name": "Total Recoverable Phenolics in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1989",
        "Identifier": "420.4",
        "Context": "USEPA",
        "Name": "Total Recoverable Phenolics in Water",
        "Description": "420.4 ~ EPA-ORD \ EPA-OST . Total recoverable phenolics in water by semi-automated colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9630\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1990",
        "Identifier": "425.1",
        "Context": "USEPA",
        "Name": "Methylene Blue Active Substances",
        "Description": "425.1 ~ EPA-NERL . Surfactants by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5266\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1991",
        "Identifier": "430.1",
        "Context": "USEPA",
        "Name": "NTA by Manual Colorimetric Determination",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1992",
        "Identifier": "430.2",
        "Context": "USEPA",
        "Name": "NTA by Automated Colorimetric Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1993",
        "Identifier": "440(S)",
        "Context": "USEPA",
        "Name": "440 S  ~ Determination of Carbon and Nitrogen",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1994",
        "Identifier": "440(W)",
        "Context": "USEPA",
        "Name": "440 W  ~ Determination of Carbon and Nitrogen",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5007",
        "Identifier": "440.0",
        "Context": "USEPA",
        "Name": "440.0 ~ EPA; Elemental C and N by Combustion and Thermal Conductivity",
        "Description": "440 ~ EPA-NERL . Elemental C and N by Combustion and Thermal Conductivity",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4657\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "814967",
        "Identifier": "440.0",
        "Context": "USEPA Rev 1.4",
        "Name": "440.0 ~ EPA; Revision 1.4, September 1997, Elemental C and N by Combustion and Thermal Conductivity",
        "Description": "Determination of Carbon and Nitrogen in Sediments and Particulates of Estuarine\Coastal Waters Using Elemental Analysis",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4657\",
        "LastChangeDate": "2021-03-09T17:03:39 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1995",
        "Identifier": "445.0",
        "Context": "USEPA",
        "Name": "445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence",
        "Description": "445 ~ EPA-NERL . Chlorophyll and Pheophytin in Algae by Fluorescence",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7222\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "814966",
        "Identifier": "445.0",
        "Context": "USEPA Rev 1.2",
        "Name": "445.0 ~ EPA; Revision 1.2, September 1997, In Vitro Determination of Chlorophyll a and Pheophytin a in Marine and Freshwater Algae by Fluorescence",
        "Description": "In Vitro Determination of Chlorophyll a and Pheophytin a in Marine and Freshwater Algae by Fluorescence",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7222\",
        "LastChangeDate": "2021-03-09T17:03:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3163",
        "Identifier": "446.0",
        "Context": "USEPA",
        "Name": "446.0 ~ EPA; Chlorophylls and Pheopigments in Phytoplankton by Spectrophotometry",
        "Description": "446 ~ EPA-NERL . Chlorophylls and Pheopigments in Phytoplankton by Spectrophotometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7224\",
        "LastChangeDate": "2009-05-21T13:49:21 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3182",
        "Identifier": "447.0",
        "Context": "USEPA",
        "Name": "447.0 ~ EPA; Chlorophyll a and b in phytoplankton by HPLC\UV",
        "Description": "447 ~ EPA-NERL . Chlorophyll a and b in phytoplankton by HPLC\UV",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7223\",
        "LastChangeDate": "2009-12-02T12:38:03 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1996",
        "Identifier": "450.1",
        "Context": "USEPA",
        "Name": "Total Organic Halide",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5623",
        "Identifier": "4500-B B***retired*** 4500-B-B",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 B B ~ Boron by Curcumin Method",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "328",
        "Identifier": "4500-B-B",
        "Context": "APHA",
        "Name": "4500 B B ~ Boron in Water by Spectrophotometry- Curcumin Method",
        "Description": "4500-B B ~ Standard Methods . Boron by Curcumin Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7414\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "329",
        "Identifier": "4500-B-C",
        "Context": "APHA",
        "Name": "4500 B C ~ Boron in Water by Spectrophotometry- Carmine Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "330",
        "Identifier": "4500-B-D",
        "Context": "APHA",
        "Name": "4500 B D ~ Boron in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "331",
        "Identifier": "4500-BR(B)",
        "Context": "APHA",
        "Name": "4500 BR B  ~ Bromide in Water by Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "332",
        "Identifier": "4500-BR(C)",
        "Context": "APHA",
        "Name": "4500 BR C  ~ Bromide in Water by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "797405",
        "Identifier": "4500-BR(D)",
        "Context": "APHA",
        "Name": "4500 BR D  ~ Bromide in Water by Flow Injection Analysis (FIA)",
        "Description": "https:\\www.chem.uci.edu\~unicorn\M3LC\handouts\Week8and9\Bromide3.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-09-11T09:00:24 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "333",
        "Identifier": "4500-CL(B)***retired*** 4500-CL-(B)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 CL B ~ Residual Chlorine in Water by Titration- Iodometric Method I",
        "Description": "DO NOT USE ~ 4500-Cl- B ~ Standard Methods . Chloride by Argentometric Method",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7429\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "335",
        "Identifier": "4500-CL(C)***retired*** 4500-CL-(C)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 CL C ~ Residual Chlorine in Water by Titration- Iodometric Method II",
        "Description": "DO NOT USE ~ 4500-Cl- C ~ Standard Methods . Chloride by Mercuric Nitrate Method",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9721\",
        "LastChangeDate": "2022-04-01T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "337",
        "Identifier": "4500-CL(D)",
        "Context": "APHA",
        "Name": "4500 CL D  ~ Residual CHLORINE in Water by Titration- Amperometric Method",
        "Description": "4500-Cl- D ~ Standard Methods . Chloride by Potentiometric Method",
        "QualifierType": "DATA",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7430\
",
        "LastChangeDate": "2006-08-13T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "339",
        "Identifier": "4500-CL(E)***retired*** 4500-CL-(E)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 CL E ~ Residual Chlorine in Water by Titration- Low-Level Amperometric Method, 4500-CL-(E)",
        "Description": "DO NOT USE ~ 4500-Cl- E ~ Standard Methods . Chloride by Automated Ferricyanide Method",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9720\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "341",
        "Identifier": "4500-CL(F)***retired*** 4500-CL-(F)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 CL F  ~ Residual Chlorine in Water by Titration- DPD Ferrous Method",
        "Description": "DO NOT USE ~ 4500-Cl F ~ Standard Methods . Chlorine by DPD Ferrous Titrimetric Method",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9722\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "343",
        "Identifier": "4500-CL(G)***retired*** 4500-CL-(G)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 CL G ~ Residual Chlorine by Colorimetry- DPD Colorimetric Method, 4500-CL-(G)",
        "Description": "DO NOT USE ~ 4500-Cl G ~ Standard Methods . Chlorine by DPD",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7431\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "344",
        "Identifier": "4500-CL(H)",
        "Context": "APHA",
        "Name": "4500 CL H  ~ Residual Chlorine by FACTS- Syringaldazine Method",
        "Description": "4500-Cl H ~ Standard Methods . Chlorine by Syringaldazine",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7432\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "345",
        "Identifier": "4500-CL(I)",
        "Context": "APHA",
        "Name": "4500 CL I  ~ Residual Chlorine by Iodometirc Electrode Technique",
        "Description": "4500-Cl I ~ Standard Methods . Chlorine by Iodometric Electrode",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9882\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "334",
        "Identifier": "4500-CL-(B)",
        "Context": "APHA",
        "Name": "4500 CL B  ~ Chloride in Water by Titration- Argentometric Method",
        "Description": "4500-Cl- B ~ Standard Methods . Chloride by Argentometric Method",
        "QualifierType": "DATA",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7406\
",
        "LastChangeDate": "2006-08-13T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "336",
        "Identifier": "4500-CL-(C)",
        "Context": "APHA",
        "Name": "4500 CL C  ~ Chloride in Water by Titration- Mercuric Nitrate Method",
        "Description": "4500-Cl- C ~ Standard Methods . Chloride by Mercuric Nitrate Method",
        "QualifierType": "DATA",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7407\
",
        "LastChangeDate": "2006-08-13T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "338",
        "Identifier": "4500-CL-(D)***retired*** 4500-CL(D)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 CL D  ~ Chloride in Water by Potentiometry",
        "Description": "DO NOT USE ~ 4500-Cl- D ~ Standard Methods . Chloride by Potentiometric Method",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9717\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "340",
        "Identifier": "4500-CL-(E)",
        "Context": "APHA",
        "Name": "4500 CL E  ~ Chloride in Water by Colorimetry- Automated Ferricyanide Method",
        "Description": "4500-Cl- E ~ Standard Methods . Chloride by Automated Ferricyanide Method",
        "QualifierType": "DATA",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7408\
",
        "LastChangeDate": "2006-08-13T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "342",
        "Identifier": "4500-CL-(F)",
        "Context": "APHA",
        "Name": "4500 CL F  ~ Chloride in Water by Ion Chromatography",
        "Description": "4500-Cl F ~ Standard Methods . Chlorine by DPD Ferrous Titrimetric Method",
        "QualifierType": "DATA",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9722\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3183",
        "Identifier": "4500-CL-(G)",
        "Context": "APHA",
        "Name": "4500 CL G or 4500CL-(G) ~ CHLORINE by DPD Colorimetric Method",
        "Description": "4500-Cl G or 4500-CL(G) ~ Standard Methods . Chlorine by DPD Colorimetric Method",
        "QualifierType": "DATA",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7431\",
        "LastChangeDate": "2025-03-19T15:32:44 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "346",
        "Identifier": "4500-CLO(B)",
        "Context": "APHA",
        "Name": "4500 CLO B  ~ Chlorine Dioxide in Water by Titration- Iodometric Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "347",
        "Identifier": "4500-CLO(C)",
        "Context": "APHA",
        "Name": "4500 CLO C  ~ Chlorine Dioxide in Water by Titration- Amperometric Method I",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "348",
        "Identifier": "4500-CLO(D)",
        "Context": "APHA",
        "Name": "4500 CLO D  ~ Chlorine Dioxide in Water by Colorimetry- DPD Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "349",
        "Identifier": "4500-CLO(E)",
        "Context": "APHA",
        "Name": "4500 CLO E  ~ Chlorine Dioxide in Water by Titration- Amperometric Method II",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4629",
        "Identifier": "4500-CLO2 C",
        "Context": "APHA",
        "Name": "4500 CLO2 C ~ Chlorine Dioxide by Amperometry",
        "Description": "4500-ClO2 C ~ Standard Methods . Chlorine Dioxide by Amperometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9890\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4630",
        "Identifier": "4500-CLO2 E",
        "Context": "APHA",
        "Name": "4500 CLO2 E ~ Chlorine by Amperometry",
        "Description": "4500-ClO2 E ~ Standard Methods . Chlorine by Amperometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9884\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5631",
        "Identifier": "4500-CN C***retired*** 4500-CN(C)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 CN C  ~ Cyanide: Preliminary Treatment of samples",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "350",
        "Identifier": "4500-CN(C)",
        "Context": "APHA",
        "Name": "4500 CN C  ~ Cyanide in Water after Distillation",
        "Description": "4500-CN C ~ Standard Methods . Total Cyanide in Water after Distillation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9736\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "351",
        "Identifier": "4500-CN(D)",
        "Context": "APHA",
        "Name": "4500 CN D  ~ Cyanide in Water by Titration",
        "Description": "4500-CN-D ~ Standard Methods . Cyanide by Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7423\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5572",
        "Identifier": "4500-CN(E)",
        "Context": "APHA (1999)",
        "Name": "4500 CN E  ~ Colorimetric Method for Cyanide in Distillate",
        "Description": "Not current version URL: https:\\www.nemi.gov\methods\method_summary\5708\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "352",
        "Identifier": "4500-CN(E)***retired*** 4500-CN-E",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 CN E ~ Cyanide in Water by Colorimetry, 4500-CN-E",
        "Description": "DO NOT USE ~ 4500-CN-E ~ Standard Methods . Colorimetric Method for Cyanide in Distillate",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5708\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "353",
        "Identifier": "4500-CN(F)",
        "Context": "APHA",
        "Name": "4500 CN F  ~ Cyanide in Water Using ISE",
        "Description": "4500-CN-F ~ Standard Methods . Cyanide in Water by Ion Selective Electrode",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5707\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "354",
        "Identifier": "4500-CN(G)",
        "Context": "APHA",
        "Name": "4500 CN G  ~ Cyanides Amenable to Chlorination after Distillation",
        "Description": "4500-CN-G ~ Standard Methods . Cyanides Amenable to Chlorination",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7424\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "355",
        "Identifier": "4500-CN(H)",
        "Context": "APHA",
        "Name": "4500 CN H  ~ Cyanides Amenable to Chlorination without Distallation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "356",
        "Identifier": "4500-CN(I)",
        "Context": "APHA",
        "Name": "4500 CN I  ~ Weak Acid Dissociable Cyanide in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "357",
        "Identifier": "4500-CN(J)",
        "Context": "APHA",
        "Name": "4500 CN J  ~ Cyanogen Chloride in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "358",
        "Identifier": "4500-CN(K)",
        "Context": "APHA",
        "Name": "4500 CN K  ~ Spot Test for Cyanides for Screening",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "359",
        "Identifier": "4500-CN(L)",
        "Context": "APHA",
        "Name": "4500 CN L  ~ Cyanates in Waste Using an ISE",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "360",
        "Identifier": "4500-CN(M)",
        "Context": "APHA",
        "Name": "4500 CN M  ~ Thiocyanate in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5630",
        "Identifier": "4500-CN- B***retired*** 4500-CN-B",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 CN B ~ Cyanide: Preliminary Treatment of samples",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4631",
        "Identifier": "4500-CN-B",
        "Context": "APHA",
        "Name": "4500 CN B ~ Cyanide: Preliminary Treatment of samples",
        "Description": "4500-CN- B ~ Standard Methods . Cyanide: Preliminary Treatment of samples",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9889\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5632",
        "Identifier": "4500-CN-D***retired*** 4500-CN(D)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 CN D ~ Cyanide by Titration",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5633",
        "Identifier": "4500-CN-E",
        "Context": "APHA",
        "Name": "4500 CN E ~ Colorimetric Method for Cyanide in Distillate",
        "Description": "",
        "QualifierType": "DATA",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5634",
        "Identifier": "4500-CN-F***retired*** 4500-CN(F)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 CN F ~ Cyanide in Water by Ion Selective Electrode",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "361",
        "Identifier": "4500-CO2(B)",
        "Context": "APHA",
        "Name": "4500 CO2 B  ~ Carbon Dioxide in Water by Nomography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "362",
        "Identifier": "4500-CO2(C)",
        "Context": "APHA",
        "Name": "4500 CO2 C  ~ Carbon Dioxide in Water by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6238",
        "Identifier": "4500-CO2(D)",
        "Context": "APHA",
        "Name": "Carbon Dioxide",
        "Description": "250-mL amber glass",
        "QualifierType": "",
        "URL": "https:\\www.eurofinsus.com\media\161380\preservation_holding_time.pdf",
        "LastChangeDate": "2026-03-26T09:10:26 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5626",
        "Identifier": "4500-Cl D***retired**\ 4500-CL(D)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 CL D ~ Chlorine by Amperometry",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicates",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5629",
        "Identifier": "4500-Cl G***retired**\ 4500-CL-(G)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 CL G ~ Chlorine by DPD",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicates",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5624",
        "Identifier": "4500-Cl- B***retired**\ 4500-CL-(B)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 CL B ~ Chloride by Argentometric Method",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicates",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5625",
        "Identifier": "4500-Cl- C***retired**\ 4500-CL-(C)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 CL C ~",
        "Description": "DO NOT USE ~ 4500-Cl - C***retired*** 4500-CL-(C)",
        "QualifierType": "duplicates",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7435\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5627",
        "Identifier": "4500-Cl- D***retired*\\ 4500-CL(D)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 Cl D ~",
        "Description": "DO NOT USE ~ 4500-Cl - D***retired*** 4500-CL(D)",
        "QualifierType": "duplicates",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7410\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5628",
        "Identifier": "4500-Cl- E***retired**\ 4500-CL-(E)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 CL E ~ Chloride by Automated Ferricyanide Method, 4500-CL-(E)",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicates",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5635",
        "Identifier": "4500-F- B***retired*** 4500-F-B",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 F B ~ Fluoride by Complexone",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5636",
        "Identifier": "4500-F- E***retired*** 4500-F-E",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 F E ~ Fluoride by Complexone",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "363",
        "Identifier": "4500-F-B",
        "Context": "APHA",
        "Name": "4500 F B ~ Preliminary Distillation of Fluoride",
        "Description": "4500-F- B ~ Standard Methods . Fluoride in Water, Preliminary Distillation Step",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9740\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "364",
        "Identifier": "4500-F-C",
        "Context": "APHA",
        "Name": "4500 F C ~ Fluoride in Water Using an ISE",
        "Description": "4500-F-C ~ Standard Methods . Ion-Selective Electrode Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5709\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "365",
        "Identifier": "4500-F-D",
        "Context": "APHA",
        "Name": "4500 F D ~ Fluoride in Water by Spectrophotometry",
        "Description": "4500-F-D ~ Standard Methods . Fluoride in Water by Spectroscopy",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5710\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "366",
        "Identifier": "4500-F-E",
        "Context": "APHA",
        "Name": "4500 F E ~ Fluoride in Water by Colorimetry",
        "Description": "4500-F- E ~ Standard Methods . Fluoride by Complexone",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7422\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "367",
        "Identifier": "4500-F-F",
        "Context": "APHA",
        "Name": "4500 F F ~ Fluoride in Water by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "368",
        "Identifier": "4500-H",
        "Context": "APHA",
        "Name": "4500 H ~ pH in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3048",
        "Identifier": "4500-H+B",
        "Context": "APHA",
        "Name": "4500 H+B ~ pH in Water by Potentiometry, pH Value in Water by Potentiometry Using a Standard Hydrogen Electrode",
        "Description": "4500-H+B ~ Standard Methods . pH in Water by Potentiometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4707\",
        "LastChangeDate": "2007-08-08T12:02:20 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "369",
        "Identifier": "4500-I-(B)***retired*** 4500-I-B",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 I B ~ Iodide in Water by Spectrophotometry- Leuco Crystal Violet Method",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "370",
        "Identifier": "4500-I-(C)***retired*** 4500-I-C",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 I C ~ Iodide in Water by Spectrophotometry- Catalytic Reduction Method",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "371",
        "Identifier": "4500-I-B",
        "Context": "APHA",
        "Name": "4500 I B ~ Iodine in Water by Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "372",
        "Identifier": "4500-I-C",
        "Context": "APHA",
        "Name": "4500 I C ~ Iodine in Water by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4632",
        "Identifier": "4500-KMNO4",
        "Context": "APHA",
        "Name": "4500 KMNO4 ~ Potassium Permanganate in Water by Spectrophotometry",
        "Description": "4500-KMnO4 ~ Standard Methods . Potassium Permanganate in Water by Spectrophotometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5711\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5540",
        "Identifier": "4500-N",
        "Context": "APHA",
        "Name": "4500 N ~ 4500-N Nitrogen",
        "Description": "https:\\www.standardmethods.org\store\ProductView.cfm?ProductID=189",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-04-04T12:46:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5316",
        "Identifier": "4500-N D",
        "Context": "APHA",
        "Name": "4500 N D ~ Conductimetric Determination of Inorganic Nitrogen",
        "Description": "http:\\www.standardmethods.org\store\ProductView.cfm?ProductID=191",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-08-11T10:13:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4642",
        "Identifier": "4500-N(ORG) C",
        "Context": "APHA",
        "Name": "4500 N ORG C ~ Organic Nitrogen\Semi-Micro-Kjeldahl",
        "Description": "4500-N(Org) C ~ Standard Methods . Organic Nitrogen\Semi-Micro-Kjeldahl",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9893\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3168",
        "Identifier": "4500-N-B",
        "Context": "APHA_SM21ED",
        "Name": "4500 N B ~ In-Line UV\Persulfate Digestion and Oxidation and Flow Injection Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-07-24T11:48:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3040",
        "Identifier": "4500-N-C",
        "Context": "APHA",
        "Name": "4500 N C ~ Persufate Method for Total Nitrogen",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-05-15T13:13:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3148",
        "Identifier": "4500-N-C",
        "Context": "APHA_SM20ED",
        "Name": "4500 N C ~ Persulfate Method for Total Nitrogen",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2008-06-23T11:12:01 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5637",
        "Identifier": "4500-NH3  B***retired*** 4500-NH3 B",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NH3 B ~ Ammonia: Preliminary Distillation Step",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5638",
        "Identifier": "4500-NH3  C***retired**\ 4500-NH3 C",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NH3 C ~ Ammonia: Preliminary Distillation Step, 4500-NH3 C",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicates",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5639",
        "Identifier": "4500-NH3  D***retired**\ 4500-NH3 D",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NH3 D ~ Ammonia: Preliminary Distillation Step, 4500-NH3 D",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicates",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5640",
        "Identifier": "4500-NH3  E***retired**\ 4500-NH3 E",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NH3 E ~ Ammonia: Preliminary Distillation Step",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicates",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5641",
        "Identifier": "4500-NH3  G***retired**\4500-NH3(G)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NH3 G ~ , 4500-NH3(G)",
        "Description": "DO NOT USE ~ 4500-NH3  G***retired***4500-NH3(G)",
        "QualifierType": "duplicates",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7438\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5642",
        "Identifier": "4500-NH3  H***retired**\ 4500-NH3 H",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NH3 H ~",
        "Description": "DO NOT USE ~ 4500-NH3  H***retired*** 4500-NH3 H",
        "QualifierType": "duplicates",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7409\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4634",
        "Identifier": "4500-NH3 B",
        "Context": "APHA",
        "Name": "4500 NH3 B ~ Ammonia by Titration",
        "Description": "4500-NH3 B ~ Standard Methods . Ammonia by Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9696\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4633",
        "Identifier": "4500-NH3 B PRE",
        "Context": "APHA",
        "Name": "4500 NH3 B PRE ~ Ammonia: Preliminary Distillation Step",
        "Description": "4500-NH3 B ~ Standard Methods . Ammonia: Preliminary Distillation Step",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9887\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4635",
        "Identifier": "4500-NH3 C",
        "Context": "APHA",
        "Name": "4500 NH3 C ~ Ammonia by Titration",
        "Description": "4500-NH3 C ~ Standard Methods . Ammonia by Titration",
        "QualifierType": "DATA",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7409\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5895",
        "Identifier": "4500-NH3 C***.retired***4500-NH3 C",
        "Context": "APHA",
        "Name": "DO NOT USE***4500-NH3 C ~ APHA; Ammonia by Titration",
        "Description": "DO NOT USE ~ Ammonia is titrated with standard sulfiuric acid using a mixed indicator of methyl red and methylene blue.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7409\",
        "LastChangeDate": "2024-10-24T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4636",
        "Identifier": "4500-NH3 D",
        "Context": "APHA",
        "Name": "4500 NH3 D ~ Ammonia by Selective Electrode",
        "Description": "4500-NH3 D ~ Standard Methods . Ammonia by Selective Electrode",
        "QualifierType": "DATA",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7438\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5896",
        "Identifier": "4500-NH3 D***.retired***4500-NH3 D",
        "Context": "APHA",
        "Name": "DO NOT USE***4500-NH3 D ~ APHA; Ammonia by Selective Electrode",
        "Description": "DO NOT USE ~ The ammonia-selective electrode uses a hydrophobic gas-permeable membrane to separate the sample solution from an electrode internal solution of ammonium chloride. ",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7438\",
        "LastChangeDate": "2024-10-24T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4637",
        "Identifier": "4500-NH3 E",
        "Context": "APHA",
        "Name": "4500 NH3 E ~ Ammonia by Selective Electrode Methods Using Known Addition",
        "Description": "4500-NH3 E ~ Standard Methods . Ammonia by Selective Electrode Methods Using Known Addition",
        "QualifierType": "DATA",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7435\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5898",
        "Identifier": "4500-NH3 E***.retired***4500-NH3 E",
        "Context": "APHA",
        "Name": "DO NOT USE***4500-NH3 E ~ APHA; Ammonia by Selective Electrode Methods Using Known Addition",
        "Description": "DO NOT USE ~ This method is applicable to the measurement of 0.03 to 1400 mg NH3-N\L in potable and surface waters and domestic and industrial wastes. High concentrations of dissolved ions affect the measurement, but color and turbidity do not. Sample distillation is unnecessary.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7435\",
        "LastChangeDate": "2024-10-24T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5897",
        "Identifier": "4500-NH3 G***.retired***4500-NH3(G)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500-NH3 G ~ APHA; Ammonia by Automated Phenate",
        "Description": "DO NOT USE ~ Alkaline phenol and hypochlorite react with ammonia to form indophenol blue that is proportional to the ammonia concentration. The blue color formed is intensified with sodium nitroprusside.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7410\",
        "LastChangeDate": "2024-10-24T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4638",
        "Identifier": "4500-NH3 G***retired*** 4500-NH3(G)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NH3 G ~ Ammonia by Automated Phenate",
        "Description": "DO NOT USE ~ 4500-NH3 G ~ Standard Methods . Ammonia by Automated Phenate",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7410\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4639",
        "Identifier": "4500-NH3 H",
        "Context": "APHA",
        "Name": "4500 NH3 H ~ Ammonia by Flow Injection Analysis",
        "Description": "4500-NH3 H ~ Standard Methods . Ammonia by Flow Injection Analysis",
        "QualifierType": "DATA",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9697\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "373",
        "Identifier": "4500-NH3(C)***retired*** 4500-NH3 C",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NH3 C ~ Ammonia in Water by Titrimetric Method",
        "Description": "DO NOT USE ~ https:\\www.nemi.gov\methods\method_summary\7409\",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "374",
        "Identifier": "4500-NH3(D)***retired*** 4500-NH3 D",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NH3 D ~ Ammonia in Water by Selective Electrode Method",
        "Description": "DO NOT USE ~ https:\\www.nemi.gov\methods\method_summary\7438\",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "375",
        "Identifier": "4500-NH3(E)***retired*** 4500-NH3 E",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NH3 E ~ Ammonia in Water by Selective Electrode Method (Known Addition)",
        "Description": "DO NOT USE ~ https:\\www.nemi.gov\methods\method_summary\7435\",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "376",
        "Identifier": "4500-NH3(F)",
        "Context": "APHA",
        "Name": "4500 NH3 F  ~ Ammonia in Water Using Phenate Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "377",
        "Identifier": "4500-NH3(G)",
        "Context": "APHA",
        "Name": "4500 NH3 G ~ Ammonia in Water Using Automated Phenate Method, Ammonia by Automated Phenate",
        "Description": "Alkaline phenol and hypochlorite react with ammonia to form indophenol blue that is proportional to the ammonia concentration. The blue color formed is intensified with sodium nitroprusside.",
        "QualifierType": "DATA",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7410\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3020",
        "Identifier": "4500-NH3(H)***retired*** 4500-NH3 H",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NH3 H ~ Ammonia in Water - Flow Injection Analysis",
        "Description": "DO NOT USE ~ https:\\www.nemi.gov\methods\method_summary\9697\",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5562",
        "Identifier": "4500-NO2",
        "Context": "APHA",
        "Name": "4500 NO2 ~ APHA Method 4500-NO2: Standard Methods for the Examination of Water and Wastewater",
        "Description": "",
        "QualifierType": "4500-NO2",
        "URL": "",
        "LastChangeDate": "2016-08-08T10:29:19 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5643",
        "Identifier": "4500-NO2 - B***retired**4500-NO2(B)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NO2 B ~ Nitrite by Colorimetry",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "378",
        "Identifier": "4500-NO2(B)",
        "Context": "APHA",
        "Name": "4500 NO2 B ~ Nitrite in Water by Colorimetry",
        "Description": "4500-NO2- B ~ Standard Methods . Nitrite by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7415\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "379",
        "Identifier": "4500-NO2(C)",
        "Context": "APHA",
        "Name": "4500 NO2 C  ~ Nitrite in Water by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5561",
        "Identifier": "4500-NO3",
        "Context": "APHA",
        "Name": "4500 NO3 ~ APHA Method 4500-NO3: Standard Methods for the Examination of Water and Wastewater",
        "Description": "",
        "QualifierType": "4500-NO3",
        "URL": "",
        "LastChangeDate": "2016-08-08T10:29:19 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5644",
        "Identifier": "4500-NO3  D***retired**\ 4500-NO3 D",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NO3 D ~ Nitrate Electrode Method",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicates",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5645",
        "Identifier": "4500-NO3 - F***retired* 4500-NO3(F)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NO3 F ~ Nitrate Electrode Method",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5646",
        "Identifier": "4500-NO3 - H***retired* 4500-NO3(H)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NO3 H ~ Nitrate Electrode Method",
        "Description": "DO NOT USE ~ 4500-NO3- H ~ Standard Methods . Nitrate by Automated Hydrazine Reduction",
        "QualifierType": "DATA",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4640",
        "Identifier": "4500-NO3 D",
        "Context": "APHA",
        "Name": "4500 NO3 D ~ Nitrogen (Nitrate) in Water by Nitrate Electrode Method",
        "Description": "4500-NO3 D ~ Standard Methods . Nitrogen (Nitrate) in Water by Nitrate Electrode Method",
        "QualifierType": "DATA",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9808\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "380",
        "Identifier": "4500-NO3(B)",
        "Context": "APHA",
        "Name": "4500 NO3 B  ~ Nitrate in Water by Ultraviolet Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "381",
        "Identifier": "4500-NO3(C)",
        "Context": "APHA",
        "Name": "4500 NO3 C  ~ Nitrate in Water by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "382",
        "Identifier": "4500-NO3(D)***retired*** 4500-NO3 D",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NO3 D ~ Nitrate in Water Using an ISE, 4500-NO3 D",
        "Description": "DO NOT USE ~ 4500-NO3- D ~ Standard Methods . Nitrate Electrode Method",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9888\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "383",
        "Identifier": "4500-NO3(E)",
        "Context": "APHA",
        "Name": "4500 NO3 E ~ Nitrate in Water- Cadmium Reduction",
        "Description": "4500-NO3- E ~ Standard Methods . Nitrate in Water After Cadmium Reduction",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4708\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "384",
        "Identifier": "4500-NO3(F)",
        "Context": "APHA",
        "Name": "4500 NO3 F ~ Nitrate in Water- Automated Cadmium Reduction",
        "Description": "4500-NO3- F ~ Standard Methods . Nitrate by Automated Cadmium Reduction Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7416\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "385",
        "Identifier": "4500-NO3(G)",
        "Context": "APHA",
        "Name": "4500 NO3 G  ~ Nitrate in Water- Titanous Chloride Reduction",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5573",
        "Identifier": "4500-NO3(H)",
        "Context": "APHA (2000)",
        "Name": "4500 NO3 H ~ Nitrate by Automated Hydrazine Reduction",
        "Description": "Not current version URL: https:\\www.nemi.gov\methods\method_summary\7417\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "386",
        "Identifier": "4500-NO3(H)",
        "Context": "APHA",
        "Name": "4500 NO3 H ~ Nitrate in Water- Automated Hydrazine Reduction",
        "Description": "4500-NO3- H ~ Standard Methods . Nitrate by Automated Hydrazine Reduction",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7417\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3021",
        "Identifier": "4500-NO3(I)",
        "Context": "APHA",
        "Name": "4500 NO3 I  ~ Nitrate in Water- Cadmium Reduction Flow Injection",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5647",
        "Identifier": "4500-NO3- D***retired*\\ 4500-NO3 D",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NO3 D ~ Nitrate Electrode Method",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicates",
        "URL": "",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5648",
        "Identifier": "4500-NO3- E***retired***4500-NO3(E)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NO3 E ~ Nitrate in Water After Cadmium Reduction",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "387",
        "Identifier": "4500-NOR(B)",
        "Context": "APHA",
        "Name": "4500 NOR B  ~ Total Kjeldahl Nitrogen in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "388",
        "Identifier": "4500-NOR(C)",
        "Context": "APHA",
        "Name": "4500 NOR C  ~ Total Kjeldahl Nitrogen in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4643",
        "Identifier": "4500-NORG C**retired*4500-N(ORG) C",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 NORG C ~ Nitrogen, organic, in Water by Semi-Micro-Kjeldahl Method",
        "Description": "4500-Norg C ~ Standard Methods . Nitrogen, organic, in Water by Semi-Micro-Kjeldahl Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9745\",
        "LastChangeDate": "2024-10-24T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4608",
        "Identifier": "4500-NORG D",
        "Context": "APHA",
        "Name": "4500 NORG D ~ Block Digestion and Flow Injection Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-03-27T08:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743086",
        "Identifier": "4500-NORG E",
        "Context": "APHA",
        "Name": "4500 NORG E ~ Total Kjeldahl Nitrogen in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-12-05T15:36:43 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4641",
        "Identifier": "4500-NORGB",
        "Context": "APHA",
        "Name": "4500 NORGB ~ Nitrogen, organic, in Water by Macro-Kjeldahl",
        "Description": "4500-NorgB ~ Standard Methods . Nitrogen, organic, in Water by Macro-Kjeldahl",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5712\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "390",
        "Identifier": "4500-O-B",
        "Context": "APHA",
        "Name": "4500 O B ~ Total Dissolved Oxygen by Titration- Iodometric Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5574",
        "Identifier": "4500-O-C",
        "Context": "APHA (2001)",
        "Name": "4500 O C ~ Oxygen by Azide Modification",
        "Description": "Not current version URL: https:\\www.nemi.gov\methods\method_summary\7389\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "391",
        "Identifier": "4500-O-C",
        "Context": "APHA",
        "Name": "4500 O C ~ Total Dissolved Oxygen by Titration- Azide Modification",
        "Description": "4500-O C ~ Standard Methods . Oxygen by Azide Modification",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7389\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "392",
        "Identifier": "4500-O-D",
        "Context": "APHA",
        "Name": "4500 O D ~ Total Dissolved Oxygen by Titration- Permanganate Modification",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "393",
        "Identifier": "4500-O-E",
        "Context": "APHA",
        "Name": "4500 O E ~ Total Dissolved Oxygen by Titration- Alum Flocculation Modification",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "394",
        "Identifier": "4500-O-F",
        "Context": "APHA",
        "Name": "4500 O F ~ Total Dissolved Oxygen by Titration- Copper\Sulfate-Sulfamic Acid Flocculation Modification ",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "870336",
        "Identifier": "4500-O-G",
        "Context": "APHA_SM22ED",
        "Name": "4500 O G",
        "Description": "4500-O G. Membrane Electrode Method",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-04-28T13:06:05 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "395",
        "Identifier": "4500-O-G",
        "Context": "APHA",
        "Name": "4500 O G ~ Total Dissolved Oxygen by Membrane Electrode Method",
        "Description": "4500-O G ~ Standard Methods . Oxygen by Membrane Electrode Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9812\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "389",
        "Identifier": "4500-O3",
        "Context": "APHA",
        "Name": "4500 O3 ~ Residual Ozone by Indigo Colorimetric Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4644",
        "Identifier": "4500-O3 B",
        "Context": "APHA",
        "Name": "4500 O3 B ~ Ozone by Indigo Colorimetric Method",
        "Description": "4500-O3 B ~ Standard Methods . Ozone by Indigo Colorimetric Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9892\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "742597",
        "Identifier": "4500-P",
        "Context": "APHA",
        "Name": "4500 P ~ Phosphorus in  water and wastewater",
        "Description": "https:\\beta-static.fishersci.com\content\dam\fishersci\en_US\documents\programs\scientific\technical-documents\white-papers\apha-phosphates-standard-methods-white-paper.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-10-13T13:27:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4645",
        "Identifier": "4500-P B",
        "Context": "APHA",
        "Name": "4500 P B ~ Phosphorus, sample preparation method",
        "Description": "4500-P B ~ Standard Methods . Phosphorus, sample preparation method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9815\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5649",
        "Identifier": "4500-P E***retired*** 4500-P-E",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 P E ~ Phosphorus by Ascorbic Acid",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "DATA",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5650",
        "Identifier": "4500-P F***retired*** 4500-P-F",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 P F ~ Phosphorus by Automated Ascorbic Acid Reduction",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "DATA",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "396",
        "Identifier": "4500-P-C",
        "Context": "APHA",
        "Name": "4500 P C ~ Phosphorus in Water by Vanadomolybdophosphoric Acid Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "397",
        "Identifier": "4500-P-D",
        "Context": "APHA",
        "Name": "4500 P D ~ Phosphorus in Water by Stannous Chloride Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "398",
        "Identifier": "4500-P-E",
        "Context": "APHA",
        "Name": "4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method",
        "Description": "4500-P E ~ Standard Methods . Phosphorus by Ascorbic Acid",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7436\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5575",
        "Identifier": "4500-P-E",
        "Context": "APHA (1997)",
        "Name": "4500 P E ~ Phosphorus by Ascorbic Acid",
        "Description": "Not current version URL: https:\\www.nemi.gov\methods\method_summary\7436\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5576",
        "Identifier": "4500-P-E",
        "Context": "APHA (1999)",
        "Name": "4500 P E ~ Phosphorus by Ascorbic Acid",
        "Description": "Not current version URL: https:\\www.nemi.gov\methods\method_summary\7436\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "399",
        "Identifier": "4500-P-F",
        "Context": "APHA",
        "Name": "4500 P F ~ Phosphorus in Water by Colorimetry Automated Ascorbic Acid Method",
        "Description": "4500-P F ~ Standard Methods . Phosphorus by Automated Ascorbic Acid Reduction",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7420\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5577",
        "Identifier": "4500-P-F",
        "Context": "APHA (2011)",
        "Name": "4500 P F ~ Phosphorus by Automated Ascorbic Acid Reduction",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7420\",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3167",
        "Identifier": "4500-P-G",
        "Context": "APHA_SM21ED",
        "Name": "4500 P G ~ Manual Digestion and Flow Injection Analysis for Orthophosphate",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-05-21T13:49:21 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6058",
        "Identifier": "4500-P-G",
        "Context": "APHA",
        "Name": "4500-P-G ~ SM\APHA; Flow Injection Analysis for Orthophosphate",
        "Description": "https:\\www.standardmethods.org\doi\10.2105\SMWW.2882.093",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2025-03-27T14:41:18 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3055",
        "Identifier": "4500-P-H",
        "Context": "APHA",
        "Name": "4500 P H ~ Manual Digestion and Flow Injection Analysis for Total Phosphorus",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-08-29T11:24:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5271",
        "Identifier": "4500-P-I",
        "Context": "APHA",
        "Name": "4500 P I ~ In-line UV\Persulfate Digestion and Flow Injection Analysis for Total Phosphorus",
        "Description": "URL: (page 19 on pdf): http:\\www.lachatinstruments.com\download\LL022-Rev-7.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-06-19T07:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3041",
        "Identifier": "4500-P-J",
        "Context": "APHA",
        "Name": "4500 P J ~ Persulfate Method for Simultaneous Determination of Total Nitrogen and Total Phosphorus",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-05-15T13:14:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4646",
        "Identifier": "4500-S-2 E***.retired***4500-S2(E)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 S-2 E ~ Sulfide in Water Gas Dialysis, Automated Methylene Blue Method",
        "Description": "4500-S-2 E ~ Standard Methods . Sulfide in Water Gas Dialysis, Automated Methylene Blue Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9827\",
        "LastChangeDate": "2024-10-24T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5651",
        "Identifier": "4500-S-2 E***retired*** 4500-S2(E)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 S2 E ~ Sulfide by Methylene Blue",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4647",
        "Identifier": "4500-S-2 F***.retired***4500-S2(F)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 S-2 F ~ Sulfide in Water by Iodometric Method",
        "Description": "4500-S-2 F ~ Standard Methods . Sulfide in Water by Iodometric Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9826\",
        "LastChangeDate": "2024-10-24T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5652",
        "Identifier": "4500-S2 F***retired*** 4500-S2(F)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 S2 F ~ Sulfide by Methylene Blue",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5907",
        "Identifier": "4500-S2(D)",
        "Context": "APHA (2000)",
        "Name": "Sulfide by Methylene Blue",
        "Description": "Not current version URL: https:\\www.nemi.gov\methods\method_summary\7418\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-12-30T23:48:28 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "400",
        "Identifier": "4500-S2(D)",
        "Context": "APHA",
        "Name": "4500 S2 D  ~ Sulfide in Water by Spectrophotometry",
        "Description": "4500-S2- D ~ Standard Methods . Sulfide by Methylene Blue",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7418\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "401",
        "Identifier": "4500-S2(E)",
        "Context": "APHA",
        "Name": "4500 S2 E  ~ Sulfide in Water by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "402",
        "Identifier": "4500-S2(F)",
        "Context": "APHA",
        "Name": "4500 S2 F  ~ Sulfide by Calculation",
        "Description": "4500-S2- F ~ Standard Methods . Sulfide by Iodometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9886\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "403",
        "Identifier": "4500-S2(G)",
        "Context": "APHA",
        "Name": "4500 S2 G  ~ Sulfide in Water by Ion-Selective Electrode Method",
        "Description": "4500-S2- G ~ Standard Methods . Sulfide by Ion-Selective Electrode",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7419\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "810613",
        "Identifier": "4500-S2(H)",
        "Context": "APHA",
        "Name": "4500 S2 H ~Calculation of Un-ionized Hydrogen Sulfide",
        "Description": "4500 S2 H ~Calculation of Un-ionized Hydrogen Sulfide https:\\edgeanalytical.com\wp-content\uploads\Inorganic_SM4500-S2-.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-11-09T08:50:46 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4605",
        "Identifier": "4500-S2(I)",
        "Context": "APHA",
        "Name": "4500 S2 I  ~ Sulfide by Distillation, Methylene Blue Flow Injection Analysis Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-02-19T11:29:46 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4606",
        "Identifier": "4500-S2(J)",
        "Context": "APHA",
        "Name": "4500 S2 J  ~ Sulfide by Acid-Volatile Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-02-19T11:29:46 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5653",
        "Identifier": "4500-S2- D***retired*** 4500-S2(D)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 S2 D ~ Sulfide by Iodometry",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5654",
        "Identifier": "4500-S2- F***retired**\ 4500-S2(F)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 S2 F ~ Sulfide by Iodometry",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicates",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5655",
        "Identifier": "4500-S2- G***retired*** 4500-S2(G)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 S2 G ~ Sulfide by Ion-Selective Electrode",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "404",
        "Identifier": "4500-SI(B)",
        "Context": "APHA",
        "Name": "4500 SI B  ~ Silica in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "405",
        "Identifier": "4500-SI(C)",
        "Context": "APHA",
        "Name": "4500 SI C  ~ Silica in Water by Gravimetric Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "406",
        "Identifier": "4500-SI(D)",
        "Context": "APHA",
        "Name": "4500 SI D  ~ Silica in Water by Spectrophotometry- Molybdosilicate Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "407",
        "Identifier": "4500-SI(E)",
        "Context": "APHA",
        "Name": "4500 SI E  ~ Silica in Water by Spectrophotometry- Heteropoly Blue Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "408",
        "Identifier": "4500-SI(F)",
        "Context": "APHA",
        "Name": "4500 SI F  ~ Silica in Water by Automated Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "409",
        "Identifier": "4500-SI(G)",
        "Context": "APHA",
        "Name": "4500 SI G  ~ Silica in Water by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4648",
        "Identifier": "4500-SIO2 C",
        "Context": "APHA",
        "Name": "4500 SIO2 C ~ Silica by Molybdosilicate Method",
        "Description": "4500-SiO2 C ~ Standard Methods . Silica by Molybdosilicate Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7411\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5906",
        "Identifier": "4500-SIO2 C",
        "Context": "APHA (1997)",
        "Name": "Silica by Molybdosilicate Method",
        "Description": "Not current version URL: https:\\www.nemi.gov\methods\method_summary\7411\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-12-30T23:48:28 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4649",
        "Identifier": "4500-SIO2 D",
        "Context": "APHA",
        "Name": "4500 SIO2 D ~ Silica by Heteropoly Blue Method",
        "Description": "4500-SiO2 D ~ Standard Methods . Silica by Heteropoly Blue Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7412\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4650",
        "Identifier": "4500-SIO2 E",
        "Context": "APHA",
        "Name": "4500 SIO2 E ~ Silica, Automated Method for Molybdate-Reactive Silica",
        "Description": "4500-SiO2 E ~ Standard Methods . Silica, Automated Method for Molybdate-Reactive Silica",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7437\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3184",
        "Identifier": "4500-SIO2(F)",
        "Context": "APHA",
        "Name": "4500 SIO2 F ~ Silica by Flow Injection Analysis for Molybdate-Reactive Silicate",
        "Description": "4500-SiO2 F ~ Standard Methods . Silicate, Flow Injection Analysis for Molybdate-Reactive Silicate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7413\",
        "LastChangeDate": "2013-05-03T12:10:09 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3143",
        "Identifier": "4500-SIO2-C",
        "Context": "APHA_SM20ED",
        "Name": "4500 SIO2 C ~ Silica Molybdosilicate Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2008-03-14T14:45:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "410",
        "Identifier": "4500-SO3(B)",
        "Context": "APHA",
        "Name": "4500 SO3 B  ~ Sulfite in Water by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "411",
        "Identifier": "4500-SO3(C)",
        "Context": "APHA",
        "Name": "4500 SO3 C  ~ Sulfite in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4651",
        "Identifier": "4500-SO32- B",
        "Context": "APHA",
        "Name": "4500 SO32- B ~ Sulfite by Iodometry",
        "Description": "4500-SO32- B ~ Standard Methods . Sulfite by Iodometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7427\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "412",
        "Identifier": "4500-SO4(B)",
        "Context": "APHA",
        "Name": "4500 SO4 B  ~ Sulfate in Water by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "413",
        "Identifier": "4500-SO4(C)",
        "Context": "APHA",
        "Name": "4500 SO4 C  ~ Sulfate in Water by Gravimetric Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "414",
        "Identifier": "4500-SO4(D)",
        "Context": "APHA",
        "Name": "4500 SO4 D  ~ Sulfate in Water by Gravimetric Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "415",
        "Identifier": "4500-SO4(E)",
        "Context": "APHA",
        "Name": "4500 SO4 E  ~ Sulfate by Turbidimetric Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "416",
        "Identifier": "4500-SO4(F)",
        "Context": "APHA",
        "Name": "4500 SO4 F  ~ Sulfate in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5328",
        "Identifier": "4500-SO4(G)",
        "Context": "APHA",
        "Name": "4500 SO4 G  ~ Sulfate in Water by Methylthymol Blue Flow Injection Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-11-05T12:41:05 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4652",
        "Identifier": "4500-SO42- C",
        "Context": "APHA",
        "Name": "4500 SO42- C ~ Sulfate by Gravimetric Analysis with Ignition of Residue",
        "Description": "4500-SO42- C ~ Standard Methods . Sulfate by Gravimetric Analysis with Ignition of Residue",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4868\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4653",
        "Identifier": "4500-SO42- D",
        "Context": "APHA",
        "Name": "4500 SO42- D ~ Sulfate in Water by Gravimetry with Drying of Residue",
        "Description": "4500-SO42- D ~ Standard Methods . Sulfate in Water by Gravimetry with Drying of Residue",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9825\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5657",
        "Identifier": "4500-SO42-D***use 4500-SO42- D",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 SO42- D ~ Sulfate by Gravimetric Analysis with Ignition of Residue",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9825\",
        "LastChangeDate": "2021-10-04T13:56:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5656",
        "Identifier": "4500-SiO2 F***retired* 4500-SIO2(F)",
        "Context": "APHA",
        "Name": "DO NOT USE***4500 SIO2 F ~ Silicate, Flow Injection Analysis for Molybdate-Reactive Silicate",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6274",
        "Identifier": "4500CLC",
        "Context": "APHA_SM18ED",
        "Name": "4500CLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-08-25T21:04:06 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6269",
        "Identifier": "4500N03F",
        "Context": "APHA_SM18ED",
        "Name": "4500N03F",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-08-25T21:04:05 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6268",
        "Identifier": "4500NH3H",
        "Context": "APHA_SM18ED",
        "Name": "4500NH3H",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-08-25T21:04:05 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6270",
        "Identifier": "4500PF",
        "Context": "APHA_SM18ED",
        "Name": "4500PF",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-08-25T21:04:05 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6276",
        "Identifier": "4500SO4E",
        "Context": "APHA_SM18ED",
        "Name": "4500SO4E",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-08-25T21:04:06 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3061",
        "Identifier": "4670",
        "Context": "USEPA",
        "Name": "Triazine Herbicides as Atrazine in Water By Quantitative Immunoassay, EPA SW-846 1998",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-09-25T11:06:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5735",
        "Identifier": "481297",
        "Context": "ITS",
        "Name": "Arsenic Low-Range for Water Quality Testing",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5736",
        "Identifier": "481300",
        "Context": "ITS",
        "Name": "Arsenic Ultra Low for Water Quality",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "824754",
        "Identifier": "4D3",
        "Context": "USDA",
        "Name": "Phosphorus in Soil by Bray P-1 Extraction",
        "Description": "https:\\www.nrcs.usda.gov\Internet\FSE_DOCUMENTS\stelprdb1253872.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-04-23T14:22:10 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "824755",
        "Identifier": "4D5",
        "Context": "USDA",
        "Name": "Phosphorus in Soil by Olsen Sodium-Bicarbonate Extraction",
        "Description": "https:\\www.nrcs.usda.gov\Internet\FSE_DOCUMENTS\stelprdb1253872.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-04-23T14:22:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1997",
        "Identifier": "5",
        "Context": "USEPA",
        "Name": "Particulate Emissions in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "417",
        "Identifier": "5.6",
        "Context": "APHA",
        "Name": "Enteric Viruses",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1023",
        "Identifier": "500",
        "Context": "NIOSH",
        "Name": "Total Particulates by Gravimetric Technique",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1024",
        "Identifier": "5000",
        "Context": "NIOSH",
        "Name": "Carbon Black by Gravimetric Technique",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5101",
        "Identifier": "500001",
        "Context": "ABRAXIS LLC",
        "Name": "Atrazine by Immunoassay, Magnetic Particle",
        "Description": "500001 ~ Abraxis . Atrazine by Immunoassay, Magnetic Particle",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9248\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5102",
        "Identifier": "500007",
        "Context": "ABRAXIS LLC",
        "Name": "Atrazine by Immunoassay, High Sensitivity, Magnetic Particle",
        "Description": "500007 ~ Abraxis . Atrazine by Immunoassay, High Sensitivity, Magnetic Particle",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9245\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5103",
        "Identifier": "500021",
        "Context": "ABRAXIS LLC",
        "Name": "Acetochlor by Immunoassay, Magnetic Particle",
        "Description": "500021 ~ Abraxis . Acetochlor by Immunoassay, Magnetic Particle",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9249\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5104",
        "Identifier": "500061",
        "Context": "ABRAXIS LLC",
        "Name": "Metolachlor by Immunoassay, Magnetic Particle",
        "Description": "500061 ~ Abraxis . Metolachlor by Immunoassay, Magnetic Particle",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9251\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5105",
        "Identifier": "500065",
        "Context": "ABRAXIS LLC",
        "Name": "Metolachlor by Immunoassay, Microtiter Plate",
        "Description": "500065 ~ Abraxis . Metolachlor by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\11355\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5106",
        "Identifier": "500071",
        "Context": "ABRAXIS LLC",
        "Name": "Alachlor by Immunoassay, Magnetic Particle",
        "Description": "500071 ~ Abraxis . Alachlor by Immunoassay, Magnetic Particle",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9243\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5107",
        "Identifier": "500076",
        "Context": "ABRAXIS LLC",
        "Name": "Alachlor by Immunoassay, Microtiter Plate",
        "Description": "500076 ~ Abraxis . Alachlor by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9257\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5108",
        "Identifier": "500081",
        "Context": "ABRAXIS LLC",
        "Name": "Glyphosate by Immunoassay, Magnetic Particle",
        "Description": "500081 ~ Abraxis . Glyphosate by Immunoassay, Magnetic Particle",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9244\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5109",
        "Identifier": "500086",
        "Context": "ABRAXIS LLC",
        "Name": "Glyphosate by Immunoassay, Microtiter Plate",
        "Description": "500086 ~ Abraxis . Glyphosate by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9253\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5110",
        "Identifier": "500090",
        "Context": "ABRAXIS LLC",
        "Name": "PBDEs in water by Immunoassay, Magnetic Particle",
        "Description": "500090 ~ Abraxis . PBDEs in water by Immunoassay, Magnetic Particle",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9513\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1025",
        "Identifier": "5001",
        "Context": "NIOSH",
        "Name": "2,4-D by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1026",
        "Identifier": "5002",
        "Context": "NIOSH",
        "Name": "Warfarin by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5111",
        "Identifier": "500201",
        "Context": "ABRAXIS LLC",
        "Name": "Pyrethroid by Immunoassay, Magnetic Particle",
        "Description": "500201 ~ Abraxis . Pyrethroid by Immunoassay, Magnetic Particle",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9252\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5112",
        "Identifier": "50020B",
        "Context": "ABRAXIS LLC",
        "Name": "50020 B ~ Spinosyn in water by Immunoassay, Coated Tube",
        "Description": "50020B ~ Abraxis . Spinosyn in water by Immunoassay, Coated Tube",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9631\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1027",
        "Identifier": "5003",
        "Context": "NIOSH",
        "Name": "Paraquat by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1028",
        "Identifier": "5004",
        "Context": "NIOSH",
        "Name": "Hydroquinone by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1029",
        "Identifier": "5005",
        "Context": "NIOSH",
        "Name": "Thiram by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5113",
        "Identifier": "500501",
        "Context": "ABRAXIS LLC",
        "Name": "Penoxsulam by Immunoassay, Magnetic Particle",
        "Description": "500501 ~ Abraxis . Penoxsulam by Immunoassay, Magnetic Particle",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\11356\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5114",
        "Identifier": "500511",
        "Context": "ABRAXIS LLC",
        "Name": "Fluridone by Immunoassay, Magnetic Particle",
        "Description": "500511 ~ Abraxis . Fluridone by Immunoassay, Magnetic Particle",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\11353\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1030",
        "Identifier": "5006",
        "Context": "NIOSH",
        "Name": "Carbaryl by Visible Absorption Spec.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1031",
        "Identifier": "5007",
        "Context": "NIOSH",
        "Name": "Rotenone by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1032",
        "Identifier": "5008",
        "Context": "NIOSH",
        "Name": "Pyrethrum by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1033",
        "Identifier": "5009",
        "Context": "NIOSH",
        "Name": "Benzoyl Peroxide by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1034",
        "Identifier": "5010",
        "Context": "NIOSH",
        "Name": "Bromoxynil and Bromoxynil Octanoate",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1035",
        "Identifier": "5011",
        "Context": "NIOSH",
        "Name": "Ethylene Thiourea by Visible Absorption",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1036",
        "Identifier": "5012",
        "Context": "NIOSH",
        "Name": "EPN by GC\FPD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1037",
        "Identifier": "5013",
        "Context": "NIOSH",
        "Name": "Dyes, Benzidine, o-Tolidine, o-Dianisidi",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1038",
        "Identifier": "5014",
        "Context": "NIOSH",
        "Name": "Chlorinated Terphenyl by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1039",
        "Identifier": "5016",
        "Context": "NIOSH",
        "Name": "Strychnine by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1040",
        "Identifier": "5017",
        "Context": "NIOSH",
        "Name": "Dibutyl Phosphate by GC\FPD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1041",
        "Identifier": "5018",
        "Context": "NIOSH",
        "Name": "2,4,7-Trinitrofluoren-9-one HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1042",
        "Identifier": "5019",
        "Context": "NIOSH",
        "Name": "Azelaic Acid by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1998",
        "Identifier": "502.1",
        "Context": "USEPA",
        "Name": "Volatile Halogenated Organics",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6094",
        "Identifier": "502.2",
        "Context": "USEPA",
        "Name": "VOCS IN WATER BY GC\PID\ELCD",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4798\",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5010",
        "Identifier": "502.2 (BY ELCD)",
        "Context": "USEPA",
        "Name": "502.2 BY ELCD  ~ VOCs in Water by GC\PID\ELCD",
        "Description": "502.2 (by ELCD) ~ EPA-NERL . VOCs in Water by GC\PID\ELCD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4827\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5011",
        "Identifier": "502.2 (BY PID)",
        "Context": "USEPA",
        "Name": "502.2 BY PID  ~ VOCs in Water by GC\PID\ELCD",
        "Description": "502.2 (by PID) ~ EPA-NERL . VOCs in Water by GC\PID\ELCD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4798\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1999",
        "Identifier": "502.2(ELCD)",
        "Context": "USEPA",
        "Name": "502.2 ELCD  ~ Volatile Organic Compounds in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2000",
        "Identifier": "502.2(PID)",
        "Context": "USEPA",
        "Name": "502.2 PID  ~ Volatile Organic Compounds in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1043",
        "Identifier": "5020",
        "Context": "NIOSH",
        "Name": "Phthalates by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1044",
        "Identifier": "5021",
        "Context": "NIOSH",
        "Name": "o-Terphenyl by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2001",
        "Identifier": "5021",
        "Context": "USEPA",
        "Name": "VOC Using Equilibrium Headspace Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3080",
        "Identifier": "5021A",
        "Context": "USEPA",
        "Name": "5021 A ~ VOC Using Equilibrium Headspace Analysis Rev1, 6\2003",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2011-11-23T09:50:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1045",
        "Identifier": "5022",
        "Context": "NIOSH",
        "Name": "Arsenic, organo-",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1046",
        "Identifier": "5025",
        "Context": "NIOSH",
        "Name": "Chlorinated Diphenyl Oxide by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1047",
        "Identifier": "5026",
        "Context": "NIOSH",
        "Name": "Mineral Oil Mist by Infrared Spec.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1048",
        "Identifier": "5027",
        "Context": "NIOSH",
        "Name": "Ribavirin by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1049",
        "Identifier": "5029",
        "Context": "NIOSH",
        "Name": "4,4'-Methylenedianiline by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2002",
        "Identifier": "503.1",
        "Context": "USEPA",
        "Name": "Volatile Aromatics in Water by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1050",
        "Identifier": "5030",
        "Context": "NIOSH",
        "Name": "Cyanuric Acid by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5012",
        "Identifier": "5030C",
        "Context": "USEPA",
        "Name": "5030 C ~ Purge-and-Trap for Aqueous Samples",
        "Description": "5030C ~ EPA-RCA . Purge-and-Trap for Aqueous Samples",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10354\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2003",
        "Identifier": "5031",
        "Context": "USEPA",
        "Name": "Volatiles by Azeotropic Distillation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1051",
        "Identifier": "5031",
        "Context": "NIOSH",
        "Name": "Aspartamine by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2004",
        "Identifier": "5032",
        "Context": "USEPA",
        "Name": "Volatiles by Vacuum Distillation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1052",
        "Identifier": "5032",
        "Context": "NIOSH",
        "Name": "Pentamidine Isethionate by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1053",
        "Identifier": "5033",
        "Context": "NIOSH",
        "Name": "p-Nitroaniline by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1054",
        "Identifier": "5034",
        "Context": "NIOSH",
        "Name": "Tributyl Phosphate by GC\FPD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1055",
        "Identifier": "5035",
        "Context": "NIOSH",
        "Name": "Super Absorbent Polymers by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1056",
        "Identifier": "5036",
        "Context": "NIOSH",
        "Name": "Trimellitic Anhydride by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1057",
        "Identifier": "5037",
        "Context": "NIOSH",
        "Name": "Triorthocresyl Phosphate GC\FPD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1058",
        "Identifier": "5038",
        "Context": "NIOSH",
        "Name": "Triphenyl Phosphate GC\FPD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1059",
        "Identifier": "5039",
        "Context": "NIOSH",
        "Name": "Chlorinated Camphene by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2005",
        "Identifier": "504",
        "Context": "USEPA",
        "Name": "EDB and DBCP in Water by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2006",
        "Identifier": "504.1",
        "Context": "USEPA",
        "Name": "EDB, DBCP and 123TCP in Water by GC",
        "Description": "504.1 ~ EPA-OGWDW\TSC . EDB,DCBP, and 123TCP in Water Using GCECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4825\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2007",
        "Identifier": "5040A",
        "Context": "USEPA",
        "Name": "5040 A ~ Analysis of VOST Sorbent Cartridges",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2008",
        "Identifier": "5041",
        "Context": "USEPA",
        "Name": "Analysis of Sorbent Cartridges",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2009",
        "Identifier": "5041A",
        "Context": "USEPA",
        "Name": "5041 A ~ Desorption of Sorbent Cartridge by GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5737",
        "Identifier": "5044F",
        "Context": "KINGWOOD",
        "Name": "5044F, IQ-Toxicity TestTM to rapidly detect toxicants in potable water.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2010",
        "Identifier": "505",
        "Context": "USEPA",
        "Name": "Organohalide Pesticides and PCB in Water",
        "Description": "505 ~ EPA-NERL . Pesticides and PCBs in Water GC-ECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4799\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2011",
        "Identifier": "506",
        "Context": "USEPA",
        "Name": "Phthalate and Adipate Esters in Water",
        "Description": "506 ~ EPA-NERL . Phthalate and Adipate Esters in Water by GCPID",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4800\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5287",
        "Identifier": "507",
        "Context": "APHA_SM19ED",
        "Name": "Biochemical Oxygen Demand (BOD(5))",
        "Description": "Standard Methods (19th ed.) 507 (dissolved oxygen depletion) mg\L",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-12-09T07:55:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2012",
        "Identifier": "507",
        "Context": "USEPA",
        "Name": "Nitrogen and Phosphorus Pesticides",
        "Description": "507 ~ EPA-TSC\NERL . Pesticides in Water Using GCNPD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4801\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4961",
        "Identifier": "5077 (SUSP SED COLL)",
        "Context": "USDOI\USGS",
        "Name": "5077 SUSP SED COLL  ~ Introduction to Suspended-Sediment Sampling",
        "Description": "SIR-2005-5077 (Susp Sed Coll) ~ USGS . Introduction to Suspended-Sediment Sampling",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9692\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2013",
        "Identifier": "508",
        "Context": "USEPA",
        "Name": "Chlorinated Pesticides in Water by GC",
        "Description": "508 ~ EPA-TSC\NERL . Chlorinated Pesticides in Water Using GCECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4826\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2014",
        "Identifier": "508.1",
        "Context": "USEPA",
        "Name": "Chlorinated Pest., Herb. and Organohalide",
        "Description": "508.1 ~ EPA-OGWDW\TSC . Chlorinated Pesticides, Herbicides, and Organohalides in Water by GCECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4802\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2015",
        "Identifier": "508A",
        "Context": "USEPA",
        "Name": "508 A ~ PCB Screen by Perchlorination and GC",
        "Description": "508A ~ EPA-NERL . PCBs by GCECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4830\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2016",
        "Identifier": "509",
        "Context": "USEPA",
        "Name": "Ethylene Thiourea in Water by GC",
        "Description": "509 ~ EPA-NERL . Ethylene thiourea in water using GC with a N-P detector",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9792\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2017",
        "Identifier": "50APP-A",
        "Context": "USEPA",
        "Name": "50APP A ~ Sulfur Dioxide in Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2018",
        "Identifier": "50APP-B",
        "Context": "USEPA",
        "Name": "50APP B ~ Suspended Particulate Matter",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2019",
        "Identifier": "50APP-C",
        "Context": "USEPA",
        "Name": "50APP C ~ Carbon Monoxide in Atmosphere - NDIR",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2020",
        "Identifier": "50APP-D",
        "Context": "USEPA",
        "Name": "50APP D ~ Ozone in the Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2021",
        "Identifier": "50APP-E",
        "Context": "USEPA",
        "Name": "50APP E ~ Hydrocarbons in Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2022",
        "Identifier": "50APP-F",
        "Context": "USEPA",
        "Name": "50APP F ~ NO2 in Atmosphere - Chemiluminescense",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2023",
        "Identifier": "50APP-G",
        "Context": "USEPA",
        "Name": "50APP G ~ Lead in Particulate Matter",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2024",
        "Identifier": "50APP-J",
        "Context": "USEPA",
        "Name": "50APP J ~ Suspended Particulate Matter (PM10)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5164",
        "Identifier": "51 INVERT COLLECTION",
        "Context": "MI DEQ SURFACE WATER",
        "Name": "51 INVERT COLLECTION ~ Invertebrate Qualitative Survey Protocols for Wadable Streams and Rivers in Michigan",
        "Description": "MI DEQ #51 Invert collection ~ MI DEQ Surface Water . Invertebrate Qualitative Survey Protocols for Wadable Streams and Rivers in Michigan",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9310\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2025",
        "Identifier": "5100",
        "Context": "USEPA",
        "Name": "Volatile Organic Concentration in Waste",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2026",
        "Identifier": "5110",
        "Context": "USEPA",
        "Name": "Organic Phase Vapor Pressure in Waste",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2027",
        "Identifier": "513",
        "Context": "USEPA",
        "Name": "Tetrachlorodibenzo-p-dioxin in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2028",
        "Identifier": "515.1",
        "Context": "USEPA",
        "Name": "Chlorinated Acids in Water by CGC\ECD",
        "Description": "515.1 ~ EPA-TSC\NERL . Chlorinated Acids in Water by GC\ECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4710\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2029",
        "Identifier": "515.2",
        "Context": "USEPA",
        "Name": "Chlorinated Acids in Water by GC",
        "Description": "515.2 ~ EPA-NERL . Chlorinated Acids in Water by GCECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4831\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3051",
        "Identifier": "515.3",
        "Context": "USEPA",
        "Name": "Chlorinated Acids by GC\ECD",
        "Description": "515.3 ~ EPA-OGWDW\TSC . Chlorinated Acids by GC\ECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4656\",
        "LastChangeDate": "2007-08-29T11:24:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3212",
        "Identifier": "515.4",
        "Context": "USEPA",
        "Name": "Determ of Chlor Acids by Liquid-Liquid Microextraction Derivatization and Fast Gas Chrom with Electron Capture Detection",
        "Description": "515.4 ~ EPA-OGWDW\TSC . Chlorinated Acids by GCECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4678\",
        "LastChangeDate": "2012-01-11T13:15:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5115",
        "Identifier": "515001",
        "Context": "ABRAXIS LLC",
        "Name": "Sulfmethazine by Immunoassay, Magnetic Particle",
        "Description": "515001 ~ Abraxis . Sulfmethazine by Immunoassay, Magnetic Particle",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9250\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5116",
        "Identifier": "515006",
        "Context": "ABRAXIS LLC",
        "Name": "Sulfamethazine by Immunoassay, Microtiter Plate",
        "Description": "515006 ~ Abraxis . Sulfamethazine by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\11358\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5117",
        "Identifier": "515565",
        "Context": "ABRAXIS LLC",
        "Name": "Cotinine by Immunoassay, Microtiter Plate",
        "Description": "515565 ~ Abraxis . Cotinine by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9928\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5118",
        "Identifier": "515575",
        "Context": "ABRAXIS LLC",
        "Name": "Caffeine by Immunoassay, Microtiter Plate",
        "Description": "515575 ~ Abraxis . Caffeine by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9926\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5119",
        "Identifier": "515585",
        "Context": "ABRAXIS LLC",
        "Name": "Carbamazepine by Immunoassay, Microtiter Plate",
        "Description": "515585 ~ Abraxis . Carbamazepine by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\11362\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5120",
        "Identifier": "520001",
        "Context": "ABRAXIS LLC",
        "Name": "Diuron by Immunoassay, Microtiter Plate",
        "Description": "520001 ~ Abraxis . Diuron by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9255\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5121",
        "Identifier": "520005",
        "Context": "ABRAXIS LLC",
        "Name": "Atrazine by Immunoassay, Microtiter Plate",
        "Description": "520005 ~ Abraxis . Atrazine by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9259\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5122",
        "Identifier": "520006",
        "Context": "ABRAXIS LLC",
        "Name": "Triazine Metabolite by Immunoassay, Microtiter Plate",
        "Description": "520006 ~ Abraxis . Triazine Metabolite by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9931\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3213",
        "Identifier": "520011",
        "Context": "ABRAXIS LLC",
        "Name": "Microcystins and Nodularins by Immunoassay, Microtiter Plate",
        "Description": "520011 ~ Abraxis . Microcystins and Nodularins by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9258\",
        "LastChangeDate": "2012-03-06T13:47:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5591",
        "Identifier": "520011SAES",
        "Context": "ABRAXIS LLC",
        "Name": "Microcystins and Nodularins Finished Drinking Water by Immunoassay, Strip Test",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3214",
        "Identifier": "520012",
        "Context": "ABRAXIS LLC",
        "Name": "Microcystins in water by Immunoassay, Coated Tube",
        "Description": "520012 ~ Abraxis . Microcystins in water by Immunoassay, Coated Tube",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9502\",
        "LastChangeDate": "2012-03-06T13:47:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5592",
        "Identifier": "520016",
        "Context": "ABRAXIS LLC",
        "Name": "Microcystins and Nodularins Source Drinking Water by Immunoassay, Strip Test",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5593",
        "Identifier": "520019",
        "Context": "ABRAXIS LLC",
        "Name": "Microcystins and Nodularins by Streptavidin-amplified ADDA Immunoassay, Microtiter Plate",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "795058",
        "Identifier": "520023",
        "Context": "ABRAXIS LLC",
        "Name": "Microcystins, 10 ppb, Recreational Water Strip Test (5 or 20T)",
        "Description": "520023 ~ Abraxis .",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\12820\",
        "LastChangeDate": "2020-04-24T13:46:19 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "795059",
        "Identifier": "520042",
        "Context": "ABRAXIS LLC",
        "Name": "Anatoxin-a 0-2.5 ppb Dipstick, Source Drinking Water, 5 tests",
        "Description": "520042 ~ Abraxis . https:\\www.eurofins-technologies.com\anatoxin-a-vfdf-0-2-5-ppb-dipstick-source-drinking-water-5-tests.htmlhttps:\\www.atzlabs.com\pdf\Anatoxin-a-Strip-Test-for-Water-052016.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-04-24T13:46:20 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "733490",
        "Identifier": "520050",
        "Context": "ABRAXIS LLC",
        "Name": "Anatoxin-a in water by Receptor-Binding Assay, Microtiter Plate",
        "Description": "520050 ~ Abraxis . Anatoxin-a in water by Receptor-Binding Assay, Microtiter Plate http:\\www.abraxiskits.com\wp-content\uploads\2017\02\Anatoxin-a-Receptor-Binding-Assay-Insert-R050316.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-02-16T13:51:37 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "741489",
        "Identifier": "520060",
        "Context": "ABRAXIS LLC",
        "Name": "Abraxis ; Anatoxin-a in water by ELISA, Microtiter Plate",
        "Description": "The description is: 520060 ~ Abraxis . Anatoxin-a in water by ELISA, Microtiter Plate   URL to use: http:\\www.abraxiskits.com\wp-content\uploads\2017\03\Anatoxin-a-ELISA-Plate-Insert.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-09-29T13:48:43 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5013",
        "Identifier": "521",
        "Context": "USEPA",
        "Name": "Nitrosamines in water by SPE and GC\MS\MS",
        "Description": "521 ~ EPA-NERL . Nitrosamines in water by SPE and GC\MS\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\11733\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5579",
        "Identifier": "5210-B",
        "Context": "APHA (2011)",
        "Name": "5210 B ~ BOD: 5-Day Test",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5715\",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5578",
        "Identifier": "5210-B",
        "Context": "APHA (2001) Rev 1.1",
        "Name": "5210 B ~ BOD: 5-Day Test",
        "Description": "Not current version URL: https:\\www.nemi.gov\methods\method_summary\5715\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "418",
        "Identifier": "5210-B",
        "Context": "APHA",
        "Name": "5210 B ~ 5-Day Biochemical Oxygen Demand",
        "Description": "5210B ~ Standard Methods . BOD: 5-Day Test",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5715\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "419",
        "Identifier": "5210-C",
        "Context": "APHA",
        "Name": "5210 C ~ Ultimate Biochemical Oxygen Test",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "606204",
        "Identifier": "522",
        "Context": "USEPA",
        "Name": "DETERM. OF 1,4-DIOXANE BY SOLID PHASE EXTRACTION AND GAS CHROMATOGRAPHY\MASS SPECTROMETRY WITH SELECTED ION MONITORING",
        "Description": "522 ~ EPA-NERL . 1,4-Dioxane in water by SPE and GC\MS with SIM",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\11734\",
        "LastChangeDate": "2011-09-21T18:23:27 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "420",
        "Identifier": "5220-B",
        "Context": "APHA",
        "Name": "5220 B ~ Chemical Oxygen Demand by Titration- Open Reflux Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "421",
        "Identifier": "5220-C",
        "Context": "APHA",
        "Name": "5220 C ~ Chemical Oxygen Demand by Titration- Closed Reflux Method",
        "Description": "5220C ~ Standard Methods . COD by Closed Reflux, Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7613\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "422",
        "Identifier": "5220-D",
        "Context": "APHA",
        "Name": "5220 D ~ Chemical Oxygen Demand by Colorimetry- Closed Reflux",
        "Description": "5220D ~ Standard Methods . Chemical Oxygen Demand",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5716\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5123",
        "Identifier": "522003",
        "Context": "ABRAXIS LLC",
        "Name": "Sulfamethoxazole(SMX) by Immunoassay, Microtiter Plate",
        "Description": "522003 ~ Abraxis . Sulfamethoxazole(SMX) by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9241\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5124",
        "Identifier": "522011",
        "Context": "ABRAXIS LLC",
        "Name": "Cylindrospermopsin in water by Immunoassay, Microtiter Plate",
        "Description": "522011 ~ Abraxis . Cylindrospermopsin in water by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9507\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3215",
        "Identifier": "522015",
        "Context": "ABRAXIS LLC",
        "Name": "Microcystins in water by Immunoassay, Direct Monoclonal Microtiter Plate",
        "Description": "522015 ~ Abraxis . Microcystins in water by Immunoassay, Direct Monoclonal Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9506\",
        "LastChangeDate": "2012-03-06T13:47:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5125",
        "Identifier": "52250B",
        "Context": "ABRAXIS LLC",
        "Name": "52250 B ~ Fluoroquinolone by Immunoassay, Microtiter Plate",
        "Description": "52250B ~ Abraxis . Fluoroquinolone by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9927\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5594",
        "Identifier": "52254BA",
        "Context": "ABRAXIS LLC",
        "Name": "Tetracyclines by Immunoassay, Microtiter Plate",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5126",
        "Identifier": "52255B",
        "Context": "ABRAXIS LLC",
        "Name": "52255 B ~ Saxitoxin in water by Immunoassay, Microtiter Plate",
        "Description": "52255B ~ Abraxis . Saxitoxin in water by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9512\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5127",
        "Identifier": "52256B",
        "Context": "ABRAXIS LLC",
        "Name": "52256 B ~ Tylosin by Immunoassay, Microtiter Plate",
        "Description": "52256B ~ Abraxis . Tylosin by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9932\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2030",
        "Identifier": "524.1",
        "Context": "USEPA",
        "Name": "Purgeable Organics in Water by GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2031",
        "Identifier": "524.2",
        "Context": "USEPA",
        "Name": "Purgeable Organics in Water by CGC\MS",
        "Description": "524.2 ~ EPA-NERL . VOCs in Water Using GCMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4803\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5014",
        "Identifier": "524.3",
        "Context": "USEPA",
        "Name": "Purgeable Organic Compounds in Water by GCMS",
        "Description": "524.3 ~ EPA-OGWDW\TSC . Purgeable Organic Compounds in Water by GCMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10417\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2032",
        "Identifier": "525.1",
        "Context": "USEPA",
        "Name": "Organics in Water by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2033",
        "Identifier": "525.2",
        "Context": "USEPA",
        "Name": "Organics in Water by Gas Chromatography",
        "Description": "525.2 ~ EPA-NERL . Organics in Water Using GCMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4804\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "870294",
        "Identifier": "525.3",
        "Context": "USEPA",
        "Name": "525.3 ~ EPA;Determination of Semivolatile Organic Chemicals in Drinking Water by SPE and Capillary Column GC\MS",
        "Description": "http:\\cfpub.epa.gov\si\si_public_record_report.cfm?dirEntryId=241188&simpleSearch=1&searchAll=525.3",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-04-05T16:22:09 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5015",
        "Identifier": "526",
        "Context": "USEPA",
        "Name": "SVOCs in Water by GCMS",
        "Description": "526 ~ EPA-OGWDW\TSC . SVOCs in Water by GCMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4676\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5016",
        "Identifier": "527",
        "Context": "USEPA",
        "Name": "Pesticides and flame retardants in water by SPE and capillary column GC\MS",
        "Description": "527 ~ EPA-OGWDW\TSC . Pesticides and flame retardants in water by SPE and capillary column GC\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9797\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5017",
        "Identifier": "528",
        "Context": "USEPA",
        "Name": "Phenols in Water by GC\MS",
        "Description": "528 ~ EPA-NERL . Phenols in Water by GC\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4677\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5018",
        "Identifier": "529",
        "Context": "USEPA",
        "Name": "Explosives and Related Compounds in Water by SPE and Capillary Column GC\MS",
        "Description": "529 ~ EPA-NERL . Explosives and Related Compounds in Water by SPE and Capillary Column GC\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\11731\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "870295",
        "Identifier": "530",
        "Context": "USEPA",
        "Name": "530 ~ EPA; Determination of Select Semivolatile Organic Chemicals in Drinking Water by SPE-GC\MS",
        "Description": "http:\\cfpub.epa.gov\si\si_public_record_report.cfm?dirEntryId=307048&simpleSearch=1&searchAll=530",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-04-05T16:24:23 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5128",
        "Identifier": "530001",
        "Context": "ABRAXIS LLC",
        "Name": "PCBs by Immunoassay, Higher Chlorinated, Magnetic Particle",
        "Description": "530001 ~ Abraxis . PCBs by Immunoassay, Higher Chlorinated, Magnetic Particle",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9261\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5129",
        "Identifier": "530011",
        "Context": "ABRAXIS LLC",
        "Name": "Coplanar PCBs by Immunoassay, Microtiter Plate",
        "Description": "530011 ~ Abraxis . Coplanar PCBs by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9254\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5130",
        "Identifier": "530021",
        "Context": "ABRAXIS LLC",
        "Name": "PCBs by Immunoassay, Lower Chlorinated, Magnetic Particle",
        "Description": "530021 ~ Abraxis . PCBs by Immunoassay, Lower Chlorinated, Magnetic Particle",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9242\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5131",
        "Identifier": "530039",
        "Context": "ABRAXIS LLC",
        "Name": "Benzo(a)Pyrene by Immunoassay, Microtiter Plate",
        "Description": "530039 ~ Abraxis . Benzo(a)Pyrene by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\11351\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5132",
        "Identifier": "530111",
        "Context": "ABRAXIS LLC",
        "Name": "Triclosan by Immunoassay, Magnetic Particle",
        "Description": "530111 ~ Abraxis . Triclosan by Immunoassay, Magnetic Particle",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9246\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5133",
        "Identifier": "530114",
        "Context": "ABRAXIS LLC",
        "Name": "Triclosan by Immunoassay, Microtiter Plate",
        "Description": "530114 ~ Abraxis . Triclosan by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9929\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2034",
        "Identifier": "531.1",
        "Context": "USEPA",
        "Name": "N-Methylcarbamates in Water by HPLC",
        "Description": "531.1 ~ EPA-TSC\NERL . Carbamates in Water Using HPLC w\ Post-Column Derivitization",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4805\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5019",
        "Identifier": "531.2",
        "Context": "USEPA",
        "Name": "N-Methylcarbamoyloximes and N-Methylcarbamates in Water by HPLC with Post Column Derivitization",
        "Description": "531.2 ~ EPA-OGWDW\TSC . N-Methylcarbamoyloximes and N-Methylcarbamates in Water by HPLC with Post Column Derivitization",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7392\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "423",
        "Identifier": "5310-B",
        "Context": "APHA",
        "Name": "5310 B ~ Total Organic Carbon by Combustion-Infrared Method",
        "Description": "5310B ~ Standard Methods . Total organic carbon by High-Temperature Combustion",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5717\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3144",
        "Identifier": "5310-B",
        "Context": "APHA_SM20ED",
        "Name": "5310 B ~ Total Organic Carbon by High-Temperature Combustion Method",
        "Description": "https:\\www.nemi.gov\methods\method_summary\5717\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2008-03-14T14:45:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5902",
        "Identifier": "5310-B",
        "Context": "APHA (2000)",
        "Name": "Total Organic Carbon by High-Temperature Combustion Method",
        "Description": "Not current version URL: https:\\www.standardmethods.org\doi\10.2105\SMWW.2882.104",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-12-30T23:48:28 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5580",
        "Identifier": "5310-C",
        "Context": "APHA (2011)",
        "Name": "5310 C ~ Total Organic Carbon by High-Temperature Combustion Method",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5717\",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "424",
        "Identifier": "5310-C",
        "Context": "APHA",
        "Name": "5310 C ~ Total Organic Carbon in Water- Ultraviolet Oxidation Method",
        "Description": "5310C ~ Standard Methods . Total organic carbon by Persulfate-UV or Heated-Persulfate Oxidation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5718\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "814963",
        "Identifier": "5310-C",
        "Context": "APHA_SM21ED",
        "Name": "5310 C ~ Total organic carbon by Persulfate-UV or Heated-Persulfate Oxidation Method",
        "Description": "5310C ~ APHA. Total organic carbon by Persulfate-UV or Heated-Persulfate Oxidation Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5718\",
        "LastChangeDate": "2021-03-05T17:43:44 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "425",
        "Identifier": "5310-D",
        "Context": "APHA",
        "Name": "5310 D ~ Total Organic Carbon in Water- Wet-Oxidation Method",
        "Description": "5310 D ~ Standard Methods . TOC by Wet Oxidation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7614\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5020",
        "Identifier": "532",
        "Context": "USEPA",
        "Name": "Phenylurea Compounds in Water by HPLCUV",
        "Description": "532 ~ EPA-OGWDW\TSC . Phenylurea Compounds in Water by HPLCUV",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4655\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "426",
        "Identifier": "5320-B",
        "Context": "APHA",
        "Name": "5320 B ~ Dissolved Organic Halogen in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "824846",
        "Identifier": "533",
        "Context": "USEPA",
        "Name": "PFAS in Drinking Water by Isotope Dilution Anion Exchange SPE and LC\MS\MS",
        "Description": "https:\\www.epa.gov\dwanalyticalmethods\method-533-determination-and-polyfluoroalkyl-substances-drinking-water-isotope",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-05-19T10:25:23 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5021",
        "Identifier": "535 (ITMS)",
        "Context": "USEPA",
        "Name": "Chloroacetanilide and other acetamide herbicide degradates by solid phase extraction and liquid chromatography with tand",
        "Description": "535 (ITMS) ~ EPA-ORD \ EPA-OST . Chloroacetanilide and other acetamide herbicide degradates by solid phase extraction and liquid chromatography with tandem mass spectrometry with Ion Trap MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\11855\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5022",
        "Identifier": "535 (TQMS)",
        "Context": "USEPA",
        "Name": "Chloroacetanilide and other acetamide herbicide degradates by solid phase extraction and liquid chromatography with tand",
        "Description": "535 (TQMS) ~ EPA-ORD \ EPA-OST . Chloroacetanilide and other acetamide herbicide degradates by solid phase extraction and liquid chromatography with tandem mass spectrometry with Triple Quadrupole MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\11842\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "834725",
        "Identifier": "536",
        "Context": "USEPA",
        "Name": "Triazine Pesticides and Degradates in Drinking Water by LC\ESI-MS\MS",
        "Description": "https:\\nepis.epa.gov\Exe\ZyPURL.cgi?Dockey=P1005E35.TXT",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-11-01T18:31:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5023",
        "Identifier": "537",
        "Context": "USEPA",
        "Name": "Organic contaminants in drinking water by direct aqueous injection-liquid chromatography\tandem mass spectrometry",
        "Description": "537 ~ EPA-ORD \ EPA-OST . Organic contaminants in drinking water by direct aqueous injection-liquid chromatography\tandem mass spectrometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\11844\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "795389",
        "Identifier": "537.1",
        "Context": "USEPA",
        "Name": "Determination of Selected Per- and Polyfluorinated Alkyl Substances in Drinking Water by Solid Phase Extraction and Liquid Chromatography\Tandem Mass Spectrometry (LC\MS\MS)",
        "Description": "https:\\cfpub.epa.gov\si\si_public_record_report.cfm?Lab=NERL&dirEntryId=343042",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-07-15T13:56:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "883372",
        "Identifier": "537M",
        "Context": "USEPA",
        "Name": "MODIFIED, Determination of Selected Perfluorinated Alkyl Acids in Drinking Water by Solid Phase Extraction and Liquid Chromatography\Tandem Mass Spectrometry (LC\MS\MS)",
        "Description": "Modified, The 1996 amendments to the Safe Drinking Water Act (SDWA) required EPA to establish a Contaminant Candidate List (CCL), that contains a list of drinking water contaminants that the Agency will consider for future regulation. EPA must make a regulatory determination on a minimum of five contaminants every five years. The first CCL was published in 1998, and updates were anticipated every five years thereafter. One of the key pieces of information that must be available in order to make a regulatory determination is nationwide occurrence data for the chemical contaminants under consideration. Historically, EPA has collected the necessary occurrence data under its Unregulated Contaminant Monitoring Regulations (UCMR). Under the UCMR, monitoring is conducted at selected drinking water utilities for specific contaminants of interest. The chemical analyses are usually performed by the utilities or by commercial laboratories. To meet the requirements of monitoring under the UCMR program, the analytical methods developed should be specific, sensitive, and practical enough for application in commercial laboratories. This task will focus on the development of analytical methods for chemicals identified on future CCLs or emerging contaminants not yet listed on the CCL. These methods will be used for the collection of occurrence data under future UCMRs.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-11-28T13:55:36 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5024",
        "Identifier": "538",
        "Context": "USEPA",
        "Name": "Organic contaminants in drinking water by direct aqueous injection-liquid chromatography\tandem mass spectrometry",
        "Description": "538 ~ EPA-ORD \ EPA-OST . Organic contaminants in drinking water by direct aqueous injection-liquid chromatography\tandem mass spectrometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\11846\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "870297",
        "Identifier": "540",
        "Context": "USEPA",
        "Name": "540 ~ EPA; Determination of Selected Organic Chemicals in Drinking Water by SPE-LC\MS\MS",
        "Description": "http:\\cfpub.epa.gov\si\si_public_record_report.cfm?dirEntryId=309413&simpleSearch=1&searchAll=method+540",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-04-05T16:37:05 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5134",
        "Identifier": "540021",
        "Context": "ABRAXIS LLC",
        "Name": "Cyclodienes by Immunoassay, Microtiter Plate",
        "Description": "540021 ~ Abraxis . Cyclodienes by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9256\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5135",
        "Identifier": "54002B",
        "Context": "ABRAXIS LLC",
        "Name": "54002B ~ Benomyl and Carbendazim in water by Immunoassay, Microtiter Plate",
        "Description": "54002B ~ Abraxis . Benomyl and Carbendazim in water by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9505\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5595",
        "Identifier": "54003A",
        "Context": "ABRAXIS LLC",
        "Name": "2,4-D by Immunoassay, Microtiter Plate",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5136",
        "Identifier": "54003B",
        "Context": "ABRAXIS LLC",
        "Name": "54003B ~ 2,4-D by Immunoassay, Microtiter Plate",
        "Description": "54003B ~ Abraxis . 2,4-D by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9930\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5137",
        "Identifier": "540041",
        "Context": "ABRAXIS LLC",
        "Name": "DDE\DDT by Immunoassay, Microtiter Plate",
        "Description": "540041 ~ Abraxis . DDE\DDT by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9260\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5138",
        "Identifier": "54004B",
        "Context": "ABRAXIS LLC",
        "Name": "54004B ~ 2,4-D in water by Immunoassay, Coated Tube",
        "Description": "54004B ~ Abraxis . 2,4-D in water by Immunoassay, Coated Tube",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9514\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "870296",
        "Identifier": "543",
        "Context": "USEPA",
        "Name": "543 ~ EPA; Determination of Selected Organic Chemicals in Drinking Water by On-line SPE-LC\MS\MS",
        "Description": "https:\\nepis.epa.gov\Exe\ZyPURL.cgi?Dockey=P100MD0C.txt",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-04-05T16:37:05 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "870293",
        "Identifier": "544",
        "Context": "USEPA",
        "Name": "544 ~ EPA; Determination of Microcystins and Nodularin in Drinking Water by SPE and LC-MS\MS Detection",
        "Description": "http:\\cfpub.epa.gov\si\si_public_record_report.cfm?dirEntryId=306953&simpleSearch=1&searchAll=544",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-04-05T16:19:23 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "870292",
        "Identifier": "545",
        "Context": "USEPA",
        "Name": "545 ~ EPA; Determination of Cylindrospermopsin and Anatoxin-a in Drinking Water by Liquid Chromatography Electrospray Ionization Tandem Mass Spectrometry (LC\ESI-MS\MS)",
        "Description": "https:\\nepis.epa.gov\Exe\ZyPURL.cgi?Dockey=P100NGHH.txt",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-04-05T16:19:23 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "735684",
        "Identifier": "546",
        "Context": "USEPA",
        "Name": "Microcystins and Nodularins by Adda Enzyme-Linked Immunosorbent Assay",
        "Description": "https:\\www.epa.gov\dwanalyticalmethods\method-546-determination-total-microcystins-and-nodularins-drinking-water-and",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-05-19T14:35:01 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2035",
        "Identifier": "547",
        "Context": "USEPA",
        "Name": "Glyphosate in Drinking Water by HPLC",
        "Description": "547 ~ EPA-NERL . Glyphosate in Water Using HPLC w\ Post Column Derivitization",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4806\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2036",
        "Identifier": "548",
        "Context": "USEPA",
        "Name": "Endothall in Water by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2037",
        "Identifier": "548.1",
        "Context": "USEPA",
        "Name": "Endothall in Drinking Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5025",
        "Identifier": "548.1 (BY FID)",
        "Context": "USEPA",
        "Name": "548.1 BY FID  ~ Endothall in Water Using GCMS",
        "Description": "548.1 (by FID) ~ EPA-NERL . Endothall in Water Using GCMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4832\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5026",
        "Identifier": "548.1 (BY MS)",
        "Context": "USEPA",
        "Name": "548.1 BY MS  ~ Endothall in Water Using GCMS",
        "Description": "548.1 (by MS) ~ EPA-NERL . Endothall in Water Using GCMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4807\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2038",
        "Identifier": "549",
        "Context": "USEPA",
        "Name": "Diquat and Paraquat in Water by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2039",
        "Identifier": "549.1",
        "Context": "USEPA",
        "Name": "Diquat and Paraquat in Water by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3052",
        "Identifier": "549.2",
        "Context": "USEPA",
        "Name": "Diquat and Paraquat in Water Using HPLC\UV",
        "Description": "549.2 ~ EPA-NERL . Diquat and Paraquat in Water Using HPLC\UV",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4808\",
        "LastChangeDate": "2007-08-29T11:24:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2040",
        "Identifier": "550",
        "Context": "USEPA",
        "Name": "Polycyclic Aromatic Hydrocarbons by HPLC",
        "Description": "550 ~ EPA-NERL . PAHs in Water Using HPLC\UV\FL",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4782\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2041",
        "Identifier": "550.1",
        "Context": "USEPA",
        "Name": "Polycyclic Aromatic Hydrocarbons by HPLC",
        "Description": "550.1 ~ EPA-NERL . PAHs in Water Using HPLC\UV\FL",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4783\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5139",
        "Identifier": "550051",
        "Context": "ABRAXIS LLC",
        "Name": "Organophosphate and Carbamate Pesticides by Cholinesterase Inhibition, Tube",
        "Description": "550051 ~ Abraxis . Organophosphate and Carbamate Pesticides by Cholinesterase Inhibition, Tube",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9933\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5140",
        "Identifier": "550055",
        "Context": "ABRAXIS LLC",
        "Name": "OP\Carbamate by Immunoassay, Microtiter Plate",
        "Description": "550055 ~ Abraxis . OP\Carbamate by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\11352\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1060",
        "Identifier": "5502",
        "Context": "NIOSH",
        "Name": "Aldrin by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1061",
        "Identifier": "5503",
        "Context": "NIOSH",
        "Name": "Polychlorobiphenyls by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1062",
        "Identifier": "5504",
        "Context": "NIOSH",
        "Name": "Organotin Compounds (as Sn) by HPLC\GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1063",
        "Identifier": "5506",
        "Context": "NIOSH",
        "Name": "Polynuclear Aromatic Hydrocarbons, HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1064",
        "Identifier": "5508",
        "Context": "NIOSH",
        "Name": "Kepone by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1065",
        "Identifier": "5509",
        "Context": "NIOSH",
        "Name": "3,3-Dichlorobenzidine and Benzidine HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2042",
        "Identifier": "551",
        "Context": "USEPA",
        "Name": "Chlorinated Solvents in Water by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3145",
        "Identifier": "551.1",
        "Context": "USEPA",
        "Name": "Chlorinated Compounds in Water Using GC-ECD",
        "Description": "551.1 ~ EPA-OGWDW\TSC . Chlorinated Compounds in Water Using GC-ECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4809\",
        "LastChangeDate": "2008-05-01T15:00:08 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1066",
        "Identifier": "5510",
        "Context": "NIOSH",
        "Name": "Chlordane by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "427",
        "Identifier": "5510-B",
        "Context": "APHA",
        "Name": "5510 B ~ Aquatic Humic Substances in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "428",
        "Identifier": "5510-C",
        "Context": "APHA",
        "Name": "5510 C ~ Aquatic Humic Substances in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1067",
        "Identifier": "5512",
        "Context": "NIOSH",
        "Name": "Pentachlorophenol by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1068",
        "Identifier": "5514",
        "Context": "NIOSH",
        "Name": "Demeton by GC\FPD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1069",
        "Identifier": "5515",
        "Context": "NIOSH",
        "Name": "Polynuclear Aromatic Hydrocarbons by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1070",
        "Identifier": "5516",
        "Context": "NIOSH",
        "Name": "2,4- and 2,6-Toluenediamine by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1071",
        "Identifier": "5517",
        "Context": "NIOSH",
        "Name": "Polychlorobenzenes by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1072",
        "Identifier": "5518",
        "Context": "NIOSH",
        "Name": "alpha and beta Naphthylamines by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1073",
        "Identifier": "5519",
        "Context": "NIOSH",
        "Name": "Endrin by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2043",
        "Identifier": "552",
        "Context": "USEPA",
        "Name": "Haloacetic Acids in Water by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2044",
        "Identifier": "552.1",
        "Context": "USEPA",
        "Name": "Haloacetic Acids in Water by GC",
        "Description": "552.1 ~ EPA-NERL . Haloacetic Acids and Dalapon in Water Using GCECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4784\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3146",
        "Identifier": "552.2",
        "Context": "USEPA",
        "Name": "Haloacetic Acids and Dalapon in Water Using GCECD",
        "Description": "552.2 ~ EPA-OGWDW\TSC . Haloacetic Acids and Dalapon in Water Using GCECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4787\",
        "LastChangeDate": "2008-05-02T11:04:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6095",
        "Identifier": "552.3",
        "Context": "USEPA",
        "Name": "HALOACETIC ACIDS AND DALAPON",
        "Description": "DETERMINATION OF HALOACETIC ACIDS AND DALAPON IN DRINKING WATER BY LIQUID-LIQUID MICROEXTRACTION, DERIVATIZATION, AND GAS CHROMATOGRAPHY WITH ELECTRON CAPTURE DETECTION",
        "QualifierType": "",
        "URL": "https:\\nepis.epa.gov\Exe\ZyPDF.cgi\901V0400.PDF?Dockey=901V0400.PDF",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5027",
        "Identifier": "552.3REV1.0",
        "Context": "USEPA",
        "Name": "552.3REV1.0 ~ Haloacetic Acids and Dalapon in Drinking Water by Microextraction, Derivitization, and GC-ECD",
        "Description": "552.3rev1.0 ~ EPA-OGWDW\TSC . Haloacetic Acids and Dalapon in Drinking Water by Microextraction, Derivitization, and GC-ECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7229\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "429",
        "Identifier": "5520-B",
        "Context": "APHA",
        "Name": "5520 B ~ Oil and Grease by Gravimetric Analysis",
        "Description": "5520 B ~ Standard Methods . Oil and Grease by Partition-Gravimetric Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7608\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "430",
        "Identifier": "5520-C",
        "Context": "APHA",
        "Name": "5520 C ~ Oil and Grease by Infrared Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "431",
        "Identifier": "5520-D",
        "Context": "APHA",
        "Name": "5520 D ~ Oil and Grease by Gravimetric Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "432",
        "Identifier": "5520-F",
        "Context": "APHA",
        "Name": "5520 F ~ Hydrocarbons by Gravimetric Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1074",
        "Identifier": "5521",
        "Context": "NIOSH",
        "Name": "Monomeric Isocyanates by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2045",
        "Identifier": "553(LLE)",
        "Context": "USEPA",
        "Name": "553 LLE  ~ Benzidines and Pesticides in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2046",
        "Identifier": "553(LSE)",
        "Context": "USEPA",
        "Name": "553 LSE  ~ Benzidines and Pesticides in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "433",
        "Identifier": "5530-C",
        "Context": "APHA",
        "Name": "5530 C ~ Phenols in Water by Spectrophotometry- Chloroform Extraction Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "434",
        "Identifier": "5530-D",
        "Context": "APHA",
        "Name": "5530 D ~ Phenols in Water by Spectrophotometry- Direct Photometric Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2047",
        "Identifier": "554",
        "Context": "USEPA",
        "Name": "Carbonyl Compounds in Water by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "435",
        "Identifier": "5540-C",
        "Context": "APHA",
        "Name": "5540 C ~ Anionic Surfactants in Water as MBAS",
        "Description": "5540 C ~ Standard Methods . Anionic Surfactants as MBAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7612\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "436",
        "Identifier": "5540-D",
        "Context": "APHA",
        "Name": "5540 D ~ Nonionic Surfactants as CTAS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2048",
        "Identifier": "555",
        "Context": "USEPA",
        "Name": "Chlorinated Acids in Water by HPLC",
        "Description": "555 ~ EPA-NERL . Chlorinated Acids in Water Using HPLC\UV",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4788\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "437",
        "Identifier": "5550-B",
        "Context": "APHA",
        "Name": "5550 B ~ Tannin and Lignin by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5028",
        "Identifier": "556",
        "Context": "USEPA",
        "Name": "Carbonyls by GC\ECD",
        "Description": "556 ~ EPA-TSC\NERL . Carbonyls by GC\ECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4663\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5029",
        "Identifier": "556.1",
        "Context": "USEPA",
        "Name": "Carbonyls by Fast GC\ECD",
        "Description": "556.1 ~ EPA-OGWDW\TSC . Carbonyls by Fast GC\ECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4662\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "438",
        "Identifier": "5560-B",
        "Context": "APHA",
        "Name": "5560 B ~ Non-Volatile and Volatile Organic Acids",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5030",
        "Identifier": "557",
        "Context": "USEPA",
        "Name": "Haloacetic Acids, Bromate, and Dalapon in Drinking Water by IC-ESI-MS\MS",
        "Description": "557 ~ EPA-OGWDW\TSC . Haloacetic Acids, Bromate, and Dalapon in Drinking Water by IC-ESI-MS\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10621\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1075",
        "Identifier": "5600",
        "Context": "NIOSH",
        "Name": "Organophosphorus Pesticides by GC\FPD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1076",
        "Identifier": "5700",
        "Context": "NIOSH",
        "Name": "Formaldehyde On Dust by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "439",
        "Identifier": "5710-B",
        "Context": "APHA",
        "Name": "5710 B ~ Trihalomethane Formation Potential",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "440",
        "Identifier": "5710-C",
        "Context": "APHA",
        "Name": "5710 C ~ Trihalomethane Formation Potential",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "441",
        "Identifier": "5710-D",
        "Context": "APHA",
        "Name": "5710 D ~ Trihalomethane Formation Potential",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5141",
        "Identifier": "580002",
        "Context": "ABRAXIS LLC",
        "Name": "17-B Estradiol by Immunoassay, Microtiter Plate",
        "Description": "580002 ~ Abraxis . 17-B Estradiol by Immunoassay, Microtiter Plate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\11365\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "442",
        "Identifier": "5910-B",
        "Context": "APHA",
        "Name": "5910 B ~ UV - Absorbing Organic Compounds",
        "Description": "5910B ~ Standard Methods . UV-Absorbing organic constituents by Ultraviolet Absorption",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5719\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770821",
        "Identifier": "5989-7073EN",
        "Context": "AGILENT",
        "Name": "Determination of Organic and Inorganic Selenium Species Using HPLC-ICP-MS",
        "Description": "A methodology based on coupling isocratic high-performance liquid chromatography (HPLC) and inductively coupled plasma mass spectrometry (ICP-MS) with optimized collision\reaction cell conditions for the simultaneous analysis of organic and inorganic selenium species in natural water samples",
        "QualifierType": "",
        "URL": "https:\\www.agilent.com\cs\library\primers\public\Primer_Environmental_elemental_analysis.pdf",
        "LastChangeDate": "2019-08-09T10:33:43 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2049",
        "Identifier": "5A",
        "Context": "USEPA",
        "Name": "5A ~ Particulate Emissions in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2050",
        "Identifier": "5B",
        "Context": "USEPA",
        "Name": "5B ~ Nonsulfuric Acid Particulate Matter",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2051",
        "Identifier": "5D",
        "Context": "USEPA",
        "Name": "5D ~ Particulate Emissions in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2052",
        "Identifier": "5E",
        "Context": "USEPA",
        "Name": "5E ~ Particulate Emissions in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2053",
        "Identifier": "5F",
        "Context": "USEPA",
        "Name": "5F ~ Non-Sulfate Particulate Matter in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2054",
        "Identifier": "5G",
        "Context": "USEPA",
        "Name": "5G ~ Particulate Emissions in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2055",
        "Identifier": "5H",
        "Context": "USEPA",
        "Name": "5H ~ Particulate Emissions in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2056",
        "Identifier": "6 (ATM SO2)",
        "Context": "USEPA",
        "Name": "6 ATM SO2  ~ Sulfur Dioxide from Stationary Sources",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2057",
        "Identifier": "6 (FORMALDEHYD)",
        "Context": "USEPA",
        "Name": "6 FORMALDEHYD  ~ Formaldehyde in Wastewater by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2058",
        "Identifier": "6 (PO-210)",
        "Context": "USEPA",
        "Name": "6 PO-210  ~ Polonium-210 in Soil and Air Filters",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "121747",
        "Identifier": "60-21A",
        "Context": "USDA",
        "Name": "60-21 A ~ pH Reading of Saturated Soil Paste",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2011-03-25T12:15:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "606205",
        "Identifier": "60-24",
        "Context": "USDA",
        "Name": "Methods for Soil Characterization-Organic Matter",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2011-10-04T18:23:27 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1077",
        "Identifier": "600",
        "Context": "NIOSH",
        "Name": "Respirable Particulates by Gravimetric",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3200",
        "Identifier": "600-R-00-013",
        "Context": "USEPA",
        "Name": "Membrane filtration plating of coliform bacteria on MI agar",
        "Description": "600-R-00-013 ~ EPA-MICRO . Membrane filtration plating of coliform bacteria on MI agar",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5576\",
        "LastChangeDate": "2010-07-23T13:41:29 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "772403",
        "Identifier": "600\2-78-054",
        "Context": "USEPA",
        "Name": "FIELD AND LABORATORY METHODS APPLICABLE TO OVERBURDENS AND MINESOIL",
        "Description": "Incorporated within this manual are step-by-step procedures on field identification of common rocks and minerals. field sampling techniques. processing of rock and soil samples. and chemical, mineralogical, microbiological, and physical analyses of the samples. The method can be used by mining companies, consultant firms, and State and Federal agencies to insure mining efficiency, post-mining land and water quality, and long range land use. Inherent to these methods is the definition of terms. Many common terms are used inconsistently even within small groups. and when multiple disciplines are involved, communication demands that many terms must be defined for that particular purpose. Thus, the definition of essential rock, soil, chemical, mineralogical, microbiological, and physical terms constitute an important part of this project.( Color illustrations reproduced in black and white)",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-11-13T08:23:15 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5312",
        "Identifier": "600\3-79-091",
        "Context": "USEPA",
        "Name": "Aqueous Ammonia Equilibrium-Tabulation of Percent Un-Ionized Ammonia",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-06-04T10:56:33 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5322",
        "Identifier": "600\4-87\26 18.0",
        "Context": "USEPA",
        "Name": "TOTAL NITROGEN (HANDBOOK OF METHODS FOR ACID DEPOSITION STUDIES)",
        "Description": "http:\\nepis.epa.gov\Exe\ZyPURL.cgi?Dockey=30000VXM.TXT",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-10-05T11:52:24 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5323",
        "Identifier": "600\4-87\26 22.0",
        "Context": "USEPA",
        "Name": "SILICA (HANDBOOK OF METHODS FOR ACID DEPOSITION STUDIES)",
        "Description": "http:\\nepis.epa.gov\Exe\ZyPURL.cgi?Dockey=30000VXM.TXT",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-10-05T11:52:24 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5304",
        "Identifier": "600\4-87\26 5.5.1",
        "Context": "USEPA",
        "Name": "ANC PH (HANDBOOK OF METHODS FOR ACID DEPOSITION STUDIES)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-03-09T15:31:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5305",
        "Identifier": "600\4-87\26 5.5.3",
        "Context": "USEPA",
        "Name": "AIR EQUILBRATED PH (HANDBOOK OF METHODS FOR ACID DEPOSITION STUDIES)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-03-09T15:31:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5324",
        "Identifier": "600\4-87\26 9.0",
        "Context": "USEPA",
        "Name": "AMMONIUM (HANDBOOK OF METHODS FOR ACID DEPOSITION STUDIES)",
        "Description": "http:\\nepis.epa.gov\Exe\ZyPURL.cgi?Dockey=30000VXM.TXT",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-10-05T11:52:24 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5589",
        "Identifier": "600\8-78\017, p124",
        "Context": "USEPA",
        "Name": "Fecal Coliform by Direct Membrane Filter",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1078",
        "Identifier": "6001",
        "Context": "NIOSH",
        "Name": "Arsine",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1079",
        "Identifier": "6002",
        "Context": "NIOSH",
        "Name": "Phosphine by UV-VIS Spectrometer",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1080",
        "Identifier": "6004",
        "Context": "NIOSH",
        "Name": "Sulfur Dioxide by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1081",
        "Identifier": "6005",
        "Context": "NIOSH",
        "Name": "Iodine by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1082",
        "Identifier": "6006",
        "Context": "NIOSH",
        "Name": "Diborane by Plasma Emission Spectrometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1083",
        "Identifier": "6007",
        "Context": "NIOSH",
        "Name": "Nickel Carbonyl AA Graphite Furnace",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1084",
        "Identifier": "6008",
        "Context": "NIOSH",
        "Name": "Stibine by Visible Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1085",
        "Identifier": "6009",
        "Context": "NIOSH",
        "Name": "Mercury by Cold Vapor Atomic Absorption",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2059",
        "Identifier": "601",
        "Context": "USEPA",
        "Name": "Purgeable Halocarbons in Wastewater",
        "Description": "601 ~ EPA-EAD . Purgeable Halocarbons via GC with Electrolytic conductivity (ELCD) or microcoulometric detector",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5227\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1086",
        "Identifier": "6010",
        "Context": "NIOSH",
        "Name": "Hydrogen Cyanide by Visible Absorption",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5870",
        "Identifier": "6010 C***retired*** 6010C",
        "Context": "USEPA",
        "Name": "DO NOT USE***6010 C ~ Trace elements in solution by ICP AES",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2060",
        "Identifier": "6010A",
        "Context": "USEPA",
        "Name": "6010 A ~ ICP Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2061",
        "Identifier": "6010B",
        "Context": "USEPA",
        "Name": "6010 B ~ Inductively Coupled Plasma AES",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3195",
        "Identifier": "6010C",
        "Context": "USEPA",
        "Name": "6010 C ~ Inductively Coupled Plasma - Atomic Emission Spectroscopy (ICP-AES)",
        "Description": "6010 C ~ EPA-RCA . Trace elements in solution by ICP AES",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4712\",
        "LastChangeDate": "2010-03-15T08:57:46 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "736023",
        "Identifier": "6010D",
        "Context": "USEPA",
        "Name": "6010 D ~ Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES)",
        "Description": "https:\\www.epa.gov\sites\production\files\2015-12\documents\6010d.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-07-12T13:44:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1087",
        "Identifier": "6011",
        "Context": "NIOSH",
        "Name": "Chlorine and Bromine by IC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1088",
        "Identifier": "6012",
        "Context": "NIOSH",
        "Name": "Sulfuryl Fluoride by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1089",
        "Identifier": "6013",
        "Context": "NIOSH",
        "Name": "Hydrogen Sulfide by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1090",
        "Identifier": "6014",
        "Context": "NIOSH",
        "Name": "Nitric Oxide and Nitrogen Dioxide",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1091",
        "Identifier": "6015",
        "Context": "NIOSH",
        "Name": "Ammonia",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2062",
        "Identifier": "602",
        "Context": "USEPA",
        "Name": "Purgeable Aromatics in Wastewater by GC",
        "Description": "602 ~ EPA-EAD . Purgeable Aromatics via GC with Photoionization Detector (PID)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5228\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2063",
        "Identifier": "6020",
        "Context": "USEPA",
        "Name": "Inductively Coupled Plasma - Mass Spec.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5031",
        "Identifier": "6020A",
        "Context": "USEPA",
        "Name": "6020 A ~ ICP-MS",
        "Description": "6020A ~ EPA-RCA . ICP-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9186\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "733487",
        "Identifier": "6020B",
        "Context": "USEPA",
        "Name": "6020 B ~ Inductively Coupled Plasma - Mass Spectrometry, part of Test Methods for Evaluating Solid Waste",
        "Description": "SW-846 Test Method 6020B: Inductively Coupled Plasma - Mass Spectrometry, part of Test Methods for Evaluating Solid Waste, Physical\Chemical Methods (PDF) https:\\www.epa.gov\sites\production\files\2015-12\documents\6020b.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-02-15T14:06:15 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2064",
        "Identifier": "6020_M",
        "Context": "USEPA",
        "Name": "6020 M ~ Inductively Coupled Plasma - Mass Spec.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2065",
        "Identifier": "603",
        "Context": "USEPA",
        "Name": "Acrolein and Acrylonitrile in Wastewater",
        "Description": "603 ~ EPA-EAD . Acrolein and Acrylonitrile Purge and Trap via GC with Flame Ionization Detector (FID)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5244\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5032",
        "Identifier": "604",
        "Context": "USEPA",
        "Name": "Phenols in Water Using GCECD\FID",
        "Description": "604 ~ EPA-EAD . Phenols in Water Using GCECD\FID",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4789\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2066",
        "Identifier": "604(A)",
        "Context": "USEPA",
        "Name": "604 A  ~ Phenols in Wastewater by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2067",
        "Identifier": "604(B)",
        "Context": "USEPA",
        "Name": "604 B  ~ Phenols in Wastewater by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2068",
        "Identifier": "604.1",
        "Context": "USEPA",
        "Name": "Hexachlorophene and Dichlorophen",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "443",
        "Identifier": "6040-B",
        "Context": "APHA",
        "Name": "6040 B ~ Organics by Closed Loop Stripping",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "444",
        "Identifier": "6040-C",
        "Context": "APHA",
        "Name": "6040 C ~ Organics in Water by Purge and Trap GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4654",
        "Identifier": "6040D",
        "Context": "APHA",
        "Name": "6040 D ~ Solid-Phase Microextraction (SPME)",
        "Description": "6040D ~ Standard Methods . Solid-Phase Microextraction (SPME)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5720\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2069",
        "Identifier": "605",
        "Context": "USEPA",
        "Name": "Benzidines in Wastewater by HPLC",
        "Description": "605 ~ EPA-EAD . Benzidenes in Water Using HPLC\ED",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4790\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2070",
        "Identifier": "606",
        "Context": "USEPA",
        "Name": "Phthalate Esters in Wastewater by GC",
        "Description": "606 ~ EPA-EAD . Phthalate Esters in Water by GCECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4791\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2071",
        "Identifier": "607",
        "Context": "USEPA",
        "Name": "Nitrosamines in Wastewater by GC",
        "Description": "607 ~ EPA-EAD . Nitrosamines in wastewater",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5779\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2072",
        "Identifier": "608",
        "Context": "USEPA",
        "Name": "Organochlorine Pesticides and PCBs by GC",
        "Description": "608 ~ EPA-EAD . Organochlorine Pesticides and PCBs via GC with Electron Capture Detector (ECD)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5246\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2073",
        "Identifier": "608.1",
        "Context": "USEPA",
        "Name": "Organochlorine Pesticides in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2074",
        "Identifier": "608.2",
        "Context": "USEPA",
        "Name": "Organochlorine Pesticides in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764610",
        "Identifier": "608.3",
        "Context": "USEPA",
        "Name": "Organochlorine Pesticides and PCBs by GC\HSD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-02-19T16:13:21 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5033",
        "Identifier": "609",
        "Context": "USEPA",
        "Name": "Nitroaromatics and Isophorone via GC with Flame Ionization Detector (FID) and Electron Capture Detector (ECD)",
        "Description": "609 ~ EPA-EAD . Nitroaromatics and Isophorone via GC with Flame Ionization Detector (FID) and Electron Capture Detector (ECD)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5247\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2075",
        "Identifier": "609(A)",
        "Context": "USEPA",
        "Name": "609 A  ~ Nitroaromatics and Isopherone by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2076",
        "Identifier": "609(B)",
        "Context": "USEPA",
        "Name": "609 B  ~ Nitroaromatics and Isophorone",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2077",
        "Identifier": "61",
        "Context": "USEPA",
        "Name": "Hexavalent Chromium in Stack Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2078",
        "Identifier": "610",
        "Context": "USEPA",
        "Name": "Polynuclear Aromatic Hydrocarbons by GC",
        "Description": "610 ~ EPA-EAD . Polynuclear Aromatic Hydrocarbons by GC",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4713\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2079",
        "Identifier": "611",
        "Context": "USEPA",
        "Name": "Haloethers in Wastewater by GC",
        "Description": "611 ~ EPA-EAD . Haloethers in Water by GCELCD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4792\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2080",
        "Identifier": "612",
        "Context": "USEPA",
        "Name": "Chlorinated Hydrocarbons by GC",
        "Description": "612 ~ EPA-EAD . Chlorinated Hydrocarbons in Water by GCECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4793\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2081",
        "Identifier": "613",
        "Context": "USEPA",
        "Name": "Tetrachlorodibenzo-p-dioxin by GC\MS",
        "Description": "613 ~ EPA-EAD . Qualitative confirmation and Quantification of 2,3,7,8-TCDD via GC\MS after a screen using Method 625",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5248\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2082",
        "Identifier": "614",
        "Context": "USEPA",
        "Name": "Organophosphorus Pesticides I",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2083",
        "Identifier": "614.1",
        "Context": "USEPA",
        "Name": "Organophosphorus Pesticides II",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2084",
        "Identifier": "615",
        "Context": "USEPA",
        "Name": "Chlorinated Herbicides in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2085",
        "Identifier": "616",
        "Context": "USEPA",
        "Name": "C, H, O Containing Pesticides in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2086",
        "Identifier": "617",
        "Context": "USEPA",
        "Name": "Organohalide Pesticides and PCBs",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2087",
        "Identifier": "618",
        "Context": "USEPA",
        "Name": "Volatile Pesticides in Water by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2088",
        "Identifier": "619",
        "Context": "USEPA",
        "Name": "Triazine Pesticides in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2089",
        "Identifier": "620",
        "Context": "USEPA",
        "Name": "Diphenylamine in Wastewater by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4655",
        "Identifier": "6200B",
        "Context": "APHA",
        "Name": "6200 B ~ Volatile organic compounds in Water by Purge and Trap Capillary-Column GC\MS Method",
        "Description": "6200B ~ Standard Methods . Volatile organic compounds in Water by Purge and Trap Capillary-Column GC\MS Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5721\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4656",
        "Identifier": "6200C",
        "Context": "APHA",
        "Name": "6200 C ~ Volatile organic compounds in Water by Purge and Trap Capillary-Column GC Method",
        "Description": "6200C ~ Standard Methods . Volatile organic compounds in Water by Purge and Trap Capillary-Column GC Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5722\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2090",
        "Identifier": "621",
        "Context": "USEPA",
        "Name": "Carbamate Pesticides - TLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "445",
        "Identifier": "6210-B",
        "Context": "APHA",
        "Name": "6210 B ~ Volatile Organics by Purge and Trap GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "446",
        "Identifier": "6210-C",
        "Context": "APHA",
        "Name": "6210 C ~ Volatile Organics by Purge and Trap GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "447",
        "Identifier": "6210-D",
        "Context": "APHA",
        "Name": "6210 D ~ Volatile Organics by Purge and Trap CGC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "448",
        "Identifier": "6211-B",
        "Context": "APHA",
        "Name": "6211 B ~ Methane in Water by Combustable Gas",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "449",
        "Identifier": "6211-C",
        "Context": "APHA",
        "Name": "6211 C ~ Methane in Water by Volumetric Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2091",
        "Identifier": "622",
        "Context": "USEPA",
        "Name": "Organophosphorus Pesticides III by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2092",
        "Identifier": "622.1",
        "Context": "USEPA",
        "Name": "Thiophosphate Pesticides in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "450",
        "Identifier": "6220-B",
        "Context": "APHA",
        "Name": "6220 B ~ Volatile Aromatic Organics in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "451",
        "Identifier": "6220-C",
        "Context": "APHA",
        "Name": "6220 C ~ Volatile Aromatic Organics in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "452",
        "Identifier": "6220-D",
        "Context": "APHA",
        "Name": "6220 D ~ Volatile Aromatic Organics in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "453",
        "Identifier": "6220-E",
        "Context": "APHA",
        "Name": "6220 E ~ Volatile Aromatic Organics in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "454",
        "Identifier": "6230-B",
        "Context": "APHA",
        "Name": "6230 B ~ Volatile Halocarbons in Water by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "455",
        "Identifier": "6230-C",
        "Context": "APHA",
        "Name": "6230 C ~ Volatile Halocarbons in Water by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "456",
        "Identifier": "6230-D",
        "Context": "APHA",
        "Name": "6230 D ~ Volatile Halocarbons in Water by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "457",
        "Identifier": "6230-E",
        "Context": "APHA",
        "Name": "6230 E ~ Volatile Halocarbons in Water by GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "458",
        "Identifier": "6231-B",
        "Context": "APHA",
        "Name": "6231 B ~ EDB and DBCP in Water by CGC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "459",
        "Identifier": "6231-C",
        "Context": "APHA",
        "Name": "6231 C ~ EDB and DBCP in Water by CGC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "460",
        "Identifier": "6231-D",
        "Context": "APHA",
        "Name": "6231 D ~ EDB and DBCP in Water by CGC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "461",
        "Identifier": "6232-B",
        "Context": "APHA",
        "Name": "6232 B ~ Trihalomethanes in Water by CGC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "462",
        "Identifier": "6232-C",
        "Context": "APHA",
        "Name": "6232 C ~ Trihalomethanes in Water by CGC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "463",
        "Identifier": "6232-D",
        "Context": "APHA",
        "Name": "6232 D ~ Trihalomethanes in Water by CGC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "464",
        "Identifier": "6233-B",
        "Context": "APHA",
        "Name": "6233 B ~ Haloacetic Acids and Trichlorphenol",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2093",
        "Identifier": "624",
        "Context": "USEPA",
        "Name": "Purgeable Organics in Wastewater",
        "Description": "624 ~ EPA-EAD . Purgeable Organic Compounds via GC\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5249\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2094",
        "Identifier": "624-S",
        "Context": "USEPA",
        "Name": "624 S ~ Organics in Sludge - Volatiles",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764611",
        "Identifier": "624.1",
        "Context": "USEPA",
        "Name": "Purgeables by GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-02-19T16:13:21 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2095",
        "Identifier": "625",
        "Context": "USEPA",
        "Name": "Base\Neutral and Acid Organics in Wastewater",
        "Description": "625 ~ EPA-NERL . Base\Neutral and Acid Organics in Wastewater",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4714\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2096",
        "Identifier": "625-S",
        "Context": "USEPA",
        "Name": "625 S ~ Organics in Sludge - Base\Neutral and Acid",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764612",
        "Identifier": "625.1",
        "Context": "USEPA",
        "Name": "Base\Neutrals and Acids by GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-02-19T16:13:01 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "465",
        "Identifier": "6251-B",
        "Context": "APHA",
        "Name": "6251 B ~ Disinfection By-Products: Haloacetic Acids and Trichlorophenol",
        "Description": "6251B ~ Standard Methods . Haloacetic acids and trichlorophenol in Water by Micro Liquid-Liquid Extraction GC Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5723\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5658",
        "Identifier": "6251B***retired*** 6251-B",
        "Context": "APHA",
        "Name": "DO NOT USE***6251 B ~ Haloacetic acids and trichlorophenol in Water by Micro Liquid-Liquid Extraction GC Method",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "466",
        "Identifier": "6252-B",
        "Context": "APHA",
        "Name": "6252 B ~ Disinfection By-Products:  Aldehydes",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2097",
        "Identifier": "626",
        "Context": "USEPA",
        "Name": "Acrolein and Acrylonitrile by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2098",
        "Identifier": "627",
        "Context": "USEPA",
        "Name": "Dinitroaniline Pesticides in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2099",
        "Identifier": "629",
        "Context": "USEPA",
        "Name": "Cyanazine in Wastewater by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2100",
        "Identifier": "630",
        "Context": "USEPA",
        "Name": "Dithiocarbamate Pesticides in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2101",
        "Identifier": "630.1",
        "Context": "USEPA",
        "Name": "Dithiocarbamate Pesticides in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2102",
        "Identifier": "631",
        "Context": "USEPA",
        "Name": "Benomyl and Carbendazim in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2103",
        "Identifier": "632",
        "Context": "USEPA",
        "Name": "Carbamate Pesticides by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2104",
        "Identifier": "632.1",
        "Context": "USEPA",
        "Name": "Carbamate Pesticides by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2105",
        "Identifier": "633",
        "Context": "USEPA",
        "Name": "Organonitrogen Pesticides in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2106",
        "Identifier": "633.1",
        "Context": "USEPA",
        "Name": "Nitrogen-Containing Pesticides in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2107",
        "Identifier": "634",
        "Context": "USEPA",
        "Name": "Thiocarbate Pesticides in Wastewaters",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2108",
        "Identifier": "635",
        "Context": "USEPA",
        "Name": "Rotenone in Wastewater by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2109",
        "Identifier": "636",
        "Context": "USEPA",
        "Name": "Bensulide in Wastewater by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2110",
        "Identifier": "637",
        "Context": "USEPA",
        "Name": "MBTS and TCMTB in Wastewater by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2111",
        "Identifier": "638",
        "Context": "USEPA",
        "Name": "Determination of Oryzalin in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2112",
        "Identifier": "639",
        "Context": "USEPA",
        "Name": "Determination of Bendiocarb in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2113",
        "Identifier": "640",
        "Context": "USEPA",
        "Name": "Mercaptobenzothiazole in Wastewaters",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1092",
        "Identifier": "6402",
        "Context": "NIOSH",
        "Name": "Phosphorus Trichloride by Visible Spec.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2114",
        "Identifier": "641",
        "Context": "USEPA",
        "Name": "Thiabendazole in Wastewater by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5659",
        "Identifier": "6410 B***retired*** 6410-B",
        "Context": "APHA",
        "Name": "DO NOT USE***6410 B ~ Extractable Semivolatile Organics by GC-MS",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "467",
        "Identifier": "6410-B",
        "Context": "APHA",
        "Name": "6410 B ~ Extractable Semivolatile Organics by GC",
        "Description": "6410 B ~ Standard Methods . Extractable Semivolatile Organics by GC-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4715\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2115",
        "Identifier": "642",
        "Context": "USEPA",
        "Name": "Biphenyl and Ortho Phenylphenol in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "468",
        "Identifier": "6420-BA",
        "Context": "APHA",
        "Name": "6420 BA ~ Phenols in Water by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "469",
        "Identifier": "6420-BB",
        "Context": "APHA",
        "Name": "6420 BB ~ Phenols in Water by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "470",
        "Identifier": "6420-C",
        "Context": "APHA",
        "Name": "6420 C ~ Phenols in Water by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4657",
        "Identifier": "6420B",
        "Context": "APHA",
        "Name": "6420 B ~ Phenols in Water by Liquid-Liquid Extraction GC",
        "Description": "6420B ~ Standard Methods . Phenols in Water by Liquid-Liquid Extraction GC",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5724\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2116",
        "Identifier": "643",
        "Context": "USEPA",
        "Name": "Determination of Bentazon in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "471",
        "Identifier": "6431-B",
        "Context": "APHA",
        "Name": "6431 B ~ Polychorinated Biphenyls in Water by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "472",
        "Identifier": "6431-C",
        "Context": "APHA",
        "Name": "6431 C ~ Polychlorinated Biphenyls in Water by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2117",
        "Identifier": "644",
        "Context": "USEPA",
        "Name": "Determination of Picloram in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5660",
        "Identifier": "6440 B***retired*** 6440-B",
        "Context": "APHA",
        "Name": "DO NOT USE***6440 B ~ PAH's in Water by HPLC",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "473",
        "Identifier": "6440-B",
        "Context": "APHA",
        "Name": "6440 B ~ Polynuclear Aromatic Hydrocarbons",
        "Description": "6440 B ~ Standard Methods . PAH's in Water by HPLC",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4716\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "474",
        "Identifier": "6440-C",
        "Context": "APHA",
        "Name": "6440 C ~ Polynuclear Aromatic Hydrocarbons by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2118",
        "Identifier": "645",
        "Context": "USEPA",
        "Name": "Amine Pesticides and Lethane in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2119",
        "Identifier": "646",
        "Context": "USEPA",
        "Name": "Dinitro Aromatic Pesticides in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1093",
        "Identifier": "6600",
        "Context": "NIOSH",
        "Name": "Nitrous Oxide by Infrared Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1094",
        "Identifier": "6601",
        "Context": "NIOSH",
        "Name": "Oxygen by Electrochemical Sensor",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1095",
        "Identifier": "6602",
        "Context": "NIOSH",
        "Name": "Sulfur Hexafluoride by Portable GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1096",
        "Identifier": "6603",
        "Context": "NIOSH",
        "Name": "Carbon Dioxide by GC\TCD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "475",
        "Identifier": "6610-B",
        "Context": "APHA",
        "Name": "6610 B ~ Carbamate Pesticides in Water by HPLC",
        "Description": "6610B ~ Standard Methods . Pesticides in Water by HPLC",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5725\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5661",
        "Identifier": "6610B***retired*** 6610-B",
        "Context": "APHA",
        "Name": "DO NOT USE***6610 B ~ Pesticides in Water by HPLC",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5662",
        "Identifier": "6630 C***retired*** 6630-C",
        "Context": "APHA",
        "Name": "DO NOT USE***6630 C ~ Organochlorine Pesticides in Water by GC",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "476",
        "Identifier": "6630-B",
        "Context": "APHA",
        "Name": "6630 B ~ Organochlorine Pesticides in Water by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "477",
        "Identifier": "6630-C",
        "Context": "APHA",
        "Name": "6630 C ~ Organochlorine Pesticides in Water by GC",
        "Description": "6630 C ~ Standard Methods . Organochlorine Pesticides in Water by GC",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4717\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "478",
        "Identifier": "6630-D",
        "Context": "APHA",
        "Name": "6630 D ~ Organochlorine Pesticides in Water by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "479",
        "Identifier": "6640-B",
        "Context": "APHA",
        "Name": "6640 B ~ Chlorinated Phenoxy Herbicides in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "480",
        "Identifier": "6651-B",
        "Context": "APHA",
        "Name": "6651 B ~ Glyphosate Herbicide in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2120",
        "Identifier": "680",
        "Context": "USEPA",
        "Name": "Pesticides and PCBs",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6096",
        "Identifier": "6850",
        "Context": "USEPA",
        "Name": "PERCHLORATE IN WATER, SOILS AND SOLID WASTES",
        "Description": "PERCHLORATE IN WATER, SOILS AND SOLID WASTES USING HIGH PERFORMANCE LIQUID CHROMATOGRAPHY\ELECTROSPRAY IONIZATION \MASS SPECTROMETRY (HPLC\ESI\MS OR HPLC\ESI\MS\MS)",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\6850.pdf",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2121",
        "Identifier": "6A",
        "Context": "USEPA",
        "Name": "6A ~ Sulfur Dioxide, Carbon Dioxide, Moisture",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2122",
        "Identifier": "6B",
        "Context": "USEPA",
        "Name": "6 B ~ Sulfur Dioxide and Carbon Dioxide in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2123",
        "Identifier": "6C",
        "Context": "USEPA",
        "Name": "6 C ~ Sulfur Dioxide from Stationary Sources",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2124",
        "Identifier": "7 (ATM NOX)",
        "Context": "USEPA",
        "Name": "7 ATM NOX  ~ Nitrogen Oxide from Stationary Sources",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2125",
        "Identifier": "7 (SR-89\90)",
        "Context": "USEPA",
        "Name": "7 SR-89\90  ~ Strontium-89 and Strontium-90 in Milk",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5168",
        "Identifier": "7000301",
        "Context": "MWI",
        "Name": "PCP (pentachlorophenol) in soils\sediment by immunoassay",
        "Description": "7000301 ~ MWI . PCP (pentachlorophenol) in soils\sediment by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5639\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2126",
        "Identifier": "7000A(FLAA)",
        "Context": "USEPA",
        "Name": "7000 A FLAA  ~ Atomic Absorption - FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2127",
        "Identifier": "7000A(GFAA)",
        "Context": "USEPA",
        "Name": "7000 A GFAA  ~ Atomic Absorption - GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3241",
        "Identifier": "7000B",
        "Context": "USEPA",
        "Name": "7000 B ~ Flame Atomic Absorption",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-08-01T13:44:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3203",
        "Identifier": "7010",
        "Context": "USEPA",
        "Name": "GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROPHOTOMETRY",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2011-12-09T13:43:04 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1097",
        "Identifier": "7013",
        "Context": "NIOSH",
        "Name": "Aluminum and Compounds",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1098",
        "Identifier": "7020",
        "Context": "NIOSH",
        "Name": "Calcium by Atomic Absorption",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2128",
        "Identifier": "7020",
        "Context": "USEPA",
        "Name": "Aluminum by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1099",
        "Identifier": "7024",
        "Context": "NIOSH",
        "Name": "Chromium by Flame Atomic Absorption",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1100",
        "Identifier": "7027",
        "Context": "NIOSH",
        "Name": "Cobalt by Flame Atomic Absorption",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "815110",
        "Identifier": "7027",
        "Context": "ISO",
        "Name": "Determination of Turbidity Technique Quantitative methods",
        "Description": "https:\\www.comm-tec.com\Docs\Brochure\Turner\ISO_7027_S-0132.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-02-12T18:09:30 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1101",
        "Identifier": "7029",
        "Context": "NIOSH",
        "Name": "Copper by Flame Atomic Absorption",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1102",
        "Identifier": "7030",
        "Context": "NIOSH",
        "Name": "Zinc and Compounds by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2129",
        "Identifier": "7040",
        "Context": "USEPA",
        "Name": "Antimony by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2130",
        "Identifier": "7041",
        "Context": "USEPA",
        "Name": "Antimony by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1103",
        "Identifier": "7048",
        "Context": "NIOSH",
        "Name": "Cadmium by Atomic Absorption",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1104",
        "Identifier": "7056",
        "Context": "NIOSH",
        "Name": "Barium, soluble compounds",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6253",
        "Identifier": "7060",
        "Context": "USEPA",
        "Name": "Arsenic, (AA, Furnace Technique)",
        "Description": "Determination of arsenic in water and waste by atomic absorption spectrophotometry using the graphite furnace technique.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-04-17T20:27:28 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5169",
        "Identifier": "70606",
        "Context": "MWI",
        "Name": "PAH in soils\sediment by immunoassay",
        "Description": "70606 ~ MWI . PAH in soils\sediment by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5635\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833429",
        "Identifier": "70606***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***PAH in soils\sediment by immunoassay",
        "Description": "DO NOT USE ~ 70606 ~ Modern Waters . https:\\www.nemi.gov\methods\method_summary\5635\",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5635\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2131",
        "Identifier": "7060A",
        "Context": "USEPA",
        "Name": "7060 A ~ Arsenic by GFAA",
        "Description": "7060A ~ EPA-RCA . Arsenic by GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5260\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5170",
        "Identifier": "7061301",
        "Context": "MWI",
        "Name": "PAH in soils\sediment by immunoassay",
        "Description": "7061301 ~ MWI . PAH in soils\sediment by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5636\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833413",
        "Identifier": "7061301***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***PAH in soils\sediment by immunoassay",
        "Description": "DO NOT USE ~ 7061301 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5636\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2132",
        "Identifier": "7061A",
        "Context": "USEPA",
        "Name": "7061 A ~ Arsenic by Gaseous Hydride AA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2133",
        "Identifier": "7062",
        "Context": "USEPA",
        "Name": "Antimony and Arsenic by GBAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5171",
        "Identifier": "70620",
        "Context": "MWI",
        "Name": "PAH in water by immunoassay",
        "Description": "70620 ~ MWI . PAH in water by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5630\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833408",
        "Identifier": "70620***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***PAH in water by immunoassay",
        "Description": "DO NOT USE ~ 70620 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5630\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2134",
        "Identifier": "7063",
        "Context": "USEPA",
        "Name": "Arsenic by ASV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1105",
        "Identifier": "7074(INSL)",
        "Context": "NIOSH",
        "Name": "7074 INSL  ~ Tungsten by Flame Atomic Absorption",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1106",
        "Identifier": "7074(SOL)",
        "Context": "NIOSH",
        "Name": "7074 SOL  ~ Tungsten by Flame Atomic Absorption",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2135",
        "Identifier": "7080A",
        "Context": "USEPA",
        "Name": "7080 A ~ Barium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2136",
        "Identifier": "7081",
        "Context": "USEPA",
        "Name": "Barium by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1107",
        "Identifier": "7082",
        "Context": "NIOSH",
        "Name": "Lead by Flame AAS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2137",
        "Identifier": "7090",
        "Context": "USEPA",
        "Name": "Beryllium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2138",
        "Identifier": "7091",
        "Context": "USEPA",
        "Name": "Beryllium by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5172",
        "Identifier": "70950",
        "Context": "MWI",
        "Name": "Silvex (2,4,5-TP) in soils\sediment by immunoassay",
        "Description": "70950 ~ MWI . Silvex (2,4,5-TP) in soils\sediment by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5644\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1108",
        "Identifier": "7102",
        "Context": "NIOSH",
        "Name": "Beryllium and compounds",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1109",
        "Identifier": "7105",
        "Context": "NIOSH",
        "Name": "Lead by GFAAS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5663",
        "Identifier": "7110 B***retired*** 7110-B",
        "Context": "APHA",
        "Name": "DO NOT USE***7110 B ~ Gross Alpha-Beta Evaporation Method",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5664",
        "Identifier": "7110 C***retired*** 7110-C",
        "Context": "APHA",
        "Name": "DO NOT USE***7110 C ~ Gross Alpha Radioactivity by Coprecipitation",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "481",
        "Identifier": "7110-B",
        "Context": "APHA",
        "Name": "7110 B ~ Gross Alpha and Beta Radioactivity",
        "Description": "7110 B ~ Standard Methods . Gross Alpha-Beta Evaporation Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4718\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "482",
        "Identifier": "7110-C",
        "Context": "APHA",
        "Name": "7110 C ~ Gross Alpha Radioactivity in Water",
        "Description": "7110 C ~ Standard Methods . Gross Alpha Radioactivity by Coprecipitation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7615\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6237",
        "Identifier": "7110-D",
        "Context": "APHA",
        "Name": "Gross Alpha\Beta (LSC)",
        "Description": "Expedited Approval of Alternative Test Procedures for the Analysis of Contaminants Under the Safe Drinking Water Act; Analysis and Sampling Procedures. SM 7110 D utilizes Liquid Scintillation Counting (LSC) for simultaneous alpha\beta",
        "QualifierType": "",
        "URL": "https:\\nepis.epa.gov\Exe\ZyPDF.cgi\P1019HQE.PDF?Dockey=P1019HQE.PDF",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4658",
        "Identifier": "7120B",
        "Context": "APHA",
        "Name": "7120 B ~ Gamma-emitting isotopes by Gamma Spectroscopic Method",
        "Description": "7120B ~ Standard Methods . Gamma-emitting isotopes by Gamma Spectroscopic Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5727\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2139",
        "Identifier": "7130",
        "Context": "USEPA",
        "Name": "Cadmium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5882",
        "Identifier": "7131 A***retired***use 7131A",
        "Context": "USEPA",
        "Name": "DO NOT USE***Cadmium by GFAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2140",
        "Identifier": "7131A",
        "Context": "USEPA",
        "Name": "7131 A ~ Cadmium by GFAA",
        "Description": "7131 A ~ EPA-RCA . Cadmium by GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4719\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2141",
        "Identifier": "7140",
        "Context": "USEPA",
        "Name": "Calcium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2142",
        "Identifier": "7190",
        "Context": "USEPA",
        "Name": "Chromium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2143",
        "Identifier": "7191",
        "Context": "USEPA",
        "Name": "Chromium by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2144",
        "Identifier": "7195",
        "Context": "USEPA",
        "Name": "Hexavalent Chromium (Coprecipitation)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2145",
        "Identifier": "7196A",
        "Context": "USEPA",
        "Name": "7196A ~ Hexavalent Chromium (Colorimetric)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2146",
        "Identifier": "7197",
        "Context": "USEPA",
        "Name": "Hexavalent Chromium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2147",
        "Identifier": "7198",
        "Context": "USEPA",
        "Name": "Hexavalent Chromium by Polarography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2148",
        "Identifier": "7199",
        "Context": "USEPA",
        "Name": "Hexavalent Chromium in Water by IC",
        "Description": "7199 ~ EPA-RCA . Chromium in Water by Ion Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9350\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2149",
        "Identifier": "7200",
        "Context": "USEPA",
        "Name": "Cobalt by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2150",
        "Identifier": "7201",
        "Context": "USEPA",
        "Name": "Cobalt by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2151",
        "Identifier": "7210",
        "Context": "USEPA",
        "Name": "Copper by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2152",
        "Identifier": "7211",
        "Context": "USEPA",
        "Name": "Copper by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5173",
        "Identifier": "72920",
        "Context": "MWI",
        "Name": "2,4-D in Water by Immunoassay",
        "Description": "72920 ~ MWI . 2,4-D in Water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5623\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833402",
        "Identifier": "72920***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***2,4-D in Water by Immunoassay",
        "Description": "DO NOT USE ~ 72920 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5623\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1110",
        "Identifier": "7300",
        "Context": "NIOSH",
        "Name": "Elements by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5174",
        "Identifier": "73100",
        "Context": "MWI",
        "Name": "DDT in soils\sediment by immunoassay",
        "Description": "73100 ~ MWI . DDT in soils\sediment by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5625\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833404",
        "Identifier": "73100***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***DDT in soils\sediment by immunoassay",
        "Description": "DO NOT USE ~ 73100 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5625\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5175",
        "Identifier": "73110",
        "Context": "MWI",
        "Name": "Chlordane (cyclodiene) in soils\sediment by immunoassay",
        "Description": "73110 ~ MWI . Chlordane (cyclodiene) in soils\sediment by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5619\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833399",
        "Identifier": "73110***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***Chlordane (cyclodiene) in soils\sediment by immunoassay",
        "Description": "DO NOT USE ~ 73110 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5619\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5176",
        "Identifier": "73300",
        "Context": "MWI",
        "Name": "Chlordane (cyclodiene) in water by immunoassay",
        "Description": "73300 ~ MWI . Chlordane (cyclodiene) in water by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5618\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833398",
        "Identifier": "73300***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***Chlordane (cyclodiene) in water by immunoassay",
        "Description": "DO NOT USE ~ 73300 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5618\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5177",
        "Identifier": "73310",
        "Context": "MWI",
        "Name": "Chlordane (cyclodiene) in water by immunoassay",
        "Description": "73310 ~ MWI . Chlordane (cyclodiene) in water by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5617\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833397",
        "Identifier": "73310***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***Chlordane (cyclodiene) in water by immunoassay",
        "Description": "DO NOT USE ~ 73310 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5617\",
        "LastChangeDate": "2022-04-07T12:49:24 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2153",
        "Identifier": "7380",
        "Context": "USEPA",
        "Name": "Iron by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2154",
        "Identifier": "7381",
        "Context": "USEPA",
        "Name": "Iron by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1111",
        "Identifier": "7400",
        "Context": "NIOSH",
        "Name": "Asbestos by PCM",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1112",
        "Identifier": "7401",
        "Context": "NIOSH",
        "Name": "Alkaline Dusts by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1113",
        "Identifier": "7402",
        "Context": "NIOSH",
        "Name": "Asbestos by TEM",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2155",
        "Identifier": "7420",
        "Context": "USEPA",
        "Name": "Lead by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5178",
        "Identifier": "74200",
        "Context": "MWI",
        "Name": "Toxaphene in soils\sediment by immunoassay",
        "Description": "74200 ~ MWI . Toxaphene in soils\sediment by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5645\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2156",
        "Identifier": "7421",
        "Context": "USEPA",
        "Name": "Lead by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2157",
        "Identifier": "7430",
        "Context": "USEPA",
        "Name": "Lithium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2158",
        "Identifier": "7450",
        "Context": "USEPA",
        "Name": "Magnesium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2159",
        "Identifier": "7460",
        "Context": "USEPA",
        "Name": "Manganese by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2160",
        "Identifier": "7461",
        "Context": "USEPA",
        "Name": "Manganese by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2161",
        "Identifier": "7470A",
        "Context": "USEPA",
        "Name": "7470 A ~ Mercury in Liquid Wastes by CVAA",
        "Description": "7470A ~ EPA-RCA . Mercury by Manual Cold-Vapor Technique",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5238\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2162",
        "Identifier": "7471A",
        "Context": "USEPA",
        "Name": "7471 A ~ Mercury in Solid or Semisolid Waste",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3169",
        "Identifier": "7471B",
        "Context": "USEPA",
        "Name": "7471B ~ Mercury in Solid or Semisolid Waste (Manual Cold Vapor Technique)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-07-24T11:52:08 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2163",
        "Identifier": "7472",
        "Context": "USEPA",
        "Name": "Mercury by ASV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3022",
        "Identifier": "7473",
        "Context": "USEPA",
        "Name": "Mercury in solids and solutions by thermal decomposition",
        "Description": "7473 ~ EPA-RCA . Mercury in Solids and Solutions by Thermal Decomposition and AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10002\",
        "LastChangeDate": "2007-02-20T13:19:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6097",
        "Identifier": "7474",
        "Context": "USEPA",
        "Name": "MERCURY IN SEDIMENT AND TISSUE SAMPLES",
        "Description": "MERCURY IN SEDIMENT AND TISSUE SAMPLES BY ATOMIC FLUORESCENCE SPECTROMETRY",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\7474.pdf",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2164",
        "Identifier": "7480",
        "Context": "USEPA",
        "Name": "Molybdenum by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2165",
        "Identifier": "7481",
        "Context": "USEPA",
        "Name": "Molybdenum by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1114",
        "Identifier": "7500",
        "Context": "NIOSH",
        "Name": "Crystalline Silica by X-Ray Diffraction",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5665",
        "Identifier": "7500-3H B***retired*** 7500-3H(B)",
        "Context": "APHA",
        "Name": "DO NOT USE***7500-3H B  ~ Tritium by Liquid Scintillation Spectrometry",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "483",
        "Identifier": "7500-3H(B)",
        "Context": "APHA",
        "Name": "7500-3H B  ~ Tritium in Water by Liquid Scintillation",
        "Description": "7500-3H B ~ Standard Methods . Tritium by Liquid Scintillation Spectrometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7621\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "484",
        "Identifier": "7500-CS(B)",
        "Context": "APHA",
        "Name": "7500 CS B  ~ Radioactive Cesium",
        "Description": "7500-Cs B ~ Standard Methods . Radioactive Cesium by Precipitation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9885\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5666",
        "Identifier": "7500-I B***retired*** 7500-I-B",
        "Context": "APHA",
        "Name": "DO NOT USE***7500 I B ~ Radioactive Iodine by Precipitation",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5667",
        "Identifier": "7500-I C***retired*** 7500-I-C",
        "Context": "APHA",
        "Name": "DO NOT USE***7500 I C ~ Radioactive Iodine by Ion-Exchange",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5668",
        "Identifier": "7500-I D***retired*** 7500-I-D",
        "Context": "APHA",
        "Name": "DO NOT USE***7500 I D ~ Radioactive Iodine by Distillation",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "485",
        "Identifier": "7500-I-B",
        "Context": "APHA",
        "Name": "7500 I B ~ Radioactive Iodine by Precipitation",
        "Description": "7500-I B ~ Standard Methods . Radioactive Iodine by Precipitation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7618\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "486",
        "Identifier": "7500-I-C",
        "Context": "APHA",
        "Name": "7500 I C ~ Radioactive Iodine by Ion-Exchange",
        "Description": "7500-I C ~ Standard Methods . Radioactive Iodine by Ion-Exchange",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7619\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "487",
        "Identifier": "7500-I-D",
        "Context": "APHA",
        "Name": "7500 I D ~ Radioactive Iodine by Distillation",
        "Description": "7500-I D ~ Standard Methods . Radioactive Iodine by Distillation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7620\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "488",
        "Identifier": "7500-RA(B)",
        "Context": "APHA",
        "Name": "7500 RA B  ~ Radium in Water by Precipitation",
        "Description": "7500-Ra B ~ Standard Methods . Radium by Precipitation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7616\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "489",
        "Identifier": "7500-RA(C)",
        "Context": "APHA",
        "Name": "7500 RA C  ~ Radium in Water by Emanation",
        "Description": "7500-Ra C ~ Standard Methods . Radium by Emanation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7617\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "490",
        "Identifier": "7500-RA(D)",
        "Context": "APHA",
        "Name": "7500 RA D  ~ Radium in Water by Sequential Precipitation",
        "Description": "7500-RA-D ~ Standard Methods . Radium in Water by Sequential Precipitation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4720\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5671",
        "Identifier": "7500-RA-D***retired*** 7500-RA(D)",
        "Context": "APHA",
        "Name": "DO NOT USE***7500 RA D  ~ Radium in Water by Sequential Precipitation",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3056",
        "Identifier": "7500-RN(B)",
        "Context": "APHA",
        "Name": "7500 RN B  ~ Radon Analysis by liquid scintillation method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-08-29T11:24:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5669",
        "Identifier": "7500-Ra B***retired*** 7500-RA(B)",
        "Context": "APHA",
        "Name": "DO NOT USE***7500 RA B  ~ Radium by Precipitation",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5670",
        "Identifier": "7500-Ra C***retired*** 7500-RA(C)",
        "Context": "APHA",
        "Name": "DO NOT USE***7500 RA C  ~ Radium by Emanation",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "491",
        "Identifier": "7500-SR(B)",
        "Context": "APHA",
        "Name": "7500 SR B  ~ Total Radioactive Strontium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5672",
        "Identifier": "7500-U B***retired*** 7500-U-B",
        "Context": "APHA",
        "Name": "DO NOT USE***7500 U B ~ Uranium by Radiochemical Method",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5673",
        "Identifier": "7500-U C***retired*** 7500-U-C",
        "Context": "APHA",
        "Name": "DO NOT USE***7500 U C ~ Uranium by the Isotopic Method",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "492",
        "Identifier": "7500-U-B",
        "Context": "APHA",
        "Name": "7500 U B ~ Uranium in Water by GPC or Scintillation",
        "Description": "7500-U B ~ Standard Methods . Uranium by Radiochemical Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7622\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "493",
        "Identifier": "7500-U-C",
        "Context": "APHA",
        "Name": "7500 U C ~ Uranium in Water by Isotopic Analysis",
        "Description": "7500-U C ~ Standard Methods . Uranium by the Isotopic Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7623\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1115",
        "Identifier": "7501",
        "Context": "NIOSH",
        "Name": "Amorphous silica by X-Ray Diffraction",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1116",
        "Identifier": "7502",
        "Context": "NIOSH",
        "Name": "Zinc Oxide by X-Ray Powder Diffraction",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1117",
        "Identifier": "7504",
        "Context": "NIOSH",
        "Name": "Vanadium Oxides by X-Ray Powder Fraction",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1118",
        "Identifier": "7505",
        "Context": "NIOSH",
        "Name": "Lead Sulfide by X-Ray Powder Diffraction",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1119",
        "Identifier": "7506",
        "Context": "NIOSH",
        "Name": "Boron Carbide",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2166",
        "Identifier": "7520",
        "Context": "USEPA",
        "Name": "Nickel by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2167",
        "Identifier": "7521",
        "Context": "USEPA",
        "Name": "Nickel by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2168",
        "Identifier": "7550",
        "Context": "USEPA",
        "Name": "Osmium in Various Matrices by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2169",
        "Identifier": "7580",
        "Context": "USEPA",
        "Name": "White Phosphorous by GC",
        "Description": "7580 ~ EPA-RCA . White Phosphorus in water, soil, and sediment by GC\NPD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9667\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5179",
        "Identifier": "75900",
        "Context": "MWI",
        "Name": "Endosulfan in water by immunoassay",
        "Description": "75900 ~ MWI . Endosulfan in water by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5627\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833405",
        "Identifier": "75900***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***Endosulfan in water by immunoassay",
        "Description": "DO NOT USE ~ 75900 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5627\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1120",
        "Identifier": "7600",
        "Context": "NIOSH",
        "Name": "Hexavalent Chromium by UV-Visible Spec.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1121",
        "Identifier": "7601",
        "Context": "NIOSH",
        "Name": "Crystalline Silica by VIS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1122",
        "Identifier": "7602",
        "Context": "NIOSH",
        "Name": "Crystalline Silica by Infra-Red Absorption",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1123",
        "Identifier": "7603",
        "Context": "NIOSH",
        "Name": "Crystalline Silica in Coal Mine Dust",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1124",
        "Identifier": "7604",
        "Context": "NIOSH",
        "Name": "Hexavalent Chromium by Ion Chromatograph",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2170",
        "Identifier": "7610",
        "Context": "USEPA",
        "Name": "Potassium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5180",
        "Identifier": "76300",
        "Context": "MWI",
        "Name": "Lindane in soils\sediment by immunoassay",
        "Description": "76300 ~ MWI . Lindane in soils\sediment by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5628\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833406",
        "Identifier": "76300***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***Lindane in soils\sediment by immunoassay",
        "Description": "DO NOT USE ~ 76300 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5628\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5739",
        "Identifier": "77000",
        "Context": "MWI",
        "Name": "Toxic analyte in water by Immunoassay",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2171",
        "Identifier": "7740",
        "Context": "USEPA",
        "Name": "Selenium in Various Matrices by GFAA",
        "Description": "7740 ~ EPA-RCA . Selenium by GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5239\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2172",
        "Identifier": "7741A",
        "Context": "USEPA",
        "Name": "7741 A ~ Selenium in Water by Gaseous Hydride",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2173",
        "Identifier": "7742",
        "Context": "USEPA",
        "Name": "Selenium by Gaseous Borohydride AA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2174",
        "Identifier": "7760A",
        "Context": "USEPA",
        "Name": "7760 A ~ Silver by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2175",
        "Identifier": "7761",
        "Context": "USEPA",
        "Name": "Silver by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2176",
        "Identifier": "7770",
        "Context": "USEPA",
        "Name": "Sodium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2177",
        "Identifier": "7780",
        "Context": "USEPA",
        "Name": "Strontium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2178",
        "Identifier": "7840",
        "Context": "USEPA",
        "Name": "Thallium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2179",
        "Identifier": "7841",
        "Context": "USEPA",
        "Name": "Thallium by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2180",
        "Identifier": "7870",
        "Context": "USEPA",
        "Name": "Tin by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5181",
        "Identifier": "78900",
        "Context": "MWI",
        "Name": "Picloram in water by Immunoassay",
        "Description": "78900 ~ MWI . Picloram in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7272\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1125",
        "Identifier": "7900",
        "Context": "NIOSH",
        "Name": "Arsenic",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1126",
        "Identifier": "7901",
        "Context": "NIOSH",
        "Name": "Arsenic Trioxide",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1127",
        "Identifier": "7902",
        "Context": "NIOSH",
        "Name": "Fluorides, Aerosol and Gas, by ISE",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1128",
        "Identifier": "7903",
        "Context": "NIOSH",
        "Name": "Acids, inorganic",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1129",
        "Identifier": "7904",
        "Context": "NIOSH",
        "Name": "Cyanide by Ion Specific Electrode",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1130",
        "Identifier": "7905",
        "Context": "NIOSH",
        "Name": "Phosphorus by GC\FPD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1131",
        "Identifier": "7906",
        "Context": "NIOSH",
        "Name": "Fluorides, Aerosol and Gas, by IC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2181",
        "Identifier": "7910",
        "Context": "USEPA",
        "Name": "Vanadium by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2182",
        "Identifier": "7911",
        "Context": "USEPA",
        "Name": "Vanadium by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2183",
        "Identifier": "7950",
        "Context": "USEPA",
        "Name": "Zinc by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2184",
        "Identifier": "7951",
        "Context": "USEPA",
        "Name": "Zinc by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2185",
        "Identifier": "7A",
        "Context": "USEPA",
        "Name": "7A ~ Nitrogen Oxide from Stationary Sources",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2186",
        "Identifier": "7B",
        "Context": "USEPA",
        "Name": "7B ~ Nitrogen Oxide from Stationary Sources",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2187",
        "Identifier": "7C",
        "Context": "USEPA",
        "Name": "7C ~ Nitrogen Oxide from Stationary Sources",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2188",
        "Identifier": "7D",
        "Context": "USEPA",
        "Name": "7D ~ Nitrogen Oxide from Stationary Sources",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2189",
        "Identifier": "7E",
        "Context": "USEPA",
        "Name": "7E ~ Nitrogen Oxide from Stationary Sources",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "820",
        "Identifier": "8000",
        "Context": "HACH",
        "Name": "Chemical Oxygen Demand",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "821",
        "Identifier": "8000(A1)",
        "Context": "HACH",
        "Name": "8000 A1  ~ Chemical Oxygen Demand",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "822",
        "Identifier": "8000(A2)",
        "Context": "HACH",
        "Name": "8000 A2  ~ Chemical Oxygen Demand",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2190",
        "Identifier": "8000A",
        "Context": "USEPA",
        "Name": "8000 A ~ Organic Compounds by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2191",
        "Identifier": "8000B",
        "Context": "USEPA",
        "Name": "8000 B ~ Organic Compounds by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4609",
        "Identifier": "8000C",
        "Context": "USEPA",
        "Name": "8000 C ~ DETERMINATIVE CHROMATOGRAPHIC SEPARATIONS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-06-28T13:44:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6098",
        "Identifier": "8000D",
        "Context": "USEPA",
        "Name": "DETERMINATIVE CHROMATOGRAPHIC SEPARATIONS",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\8000d.pdf",
        "LastChangeDate": "2026-03-13T19:43:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1132",
        "Identifier": "8001",
        "Context": "NIOSH",
        "Name": "Pentachlorophenol in Blood by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "823",
        "Identifier": "8001(1)",
        "Context": "HACH",
        "Name": "8001 1  ~ Total, Fecal and E. Coli Coliform",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "824",
        "Identifier": "8001(2)",
        "Context": "HACH",
        "Name": "8001 2  ~ Total, Fecal and E. Coli Coliform",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "825",
        "Identifier": "8001(3)",
        "Context": "HACH",
        "Name": "8001 3  ~ Total, Fecal and E. Coli Coliform",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "826",
        "Identifier": "8001(A1)",
        "Context": "HACH",
        "Name": "8001 A1  ~ Total, Fecal and E. Coli Coliform",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "827",
        "Identifier": "8001(A2)",
        "Context": "HACH",
        "Name": "8001 A2  ~ Total, Fecal and E. Coli Coliform",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "828",
        "Identifier": "8001(A3)",
        "Context": "HACH",
        "Name": "8001 A3  ~ Total, Fecal and E. Coli Coliform",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1133",
        "Identifier": "8002",
        "Context": "NIOSH",
        "Name": "Methyl Ethyl Ketone, Ethanol and Toluene",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1134",
        "Identifier": "8003",
        "Context": "NIOSH",
        "Name": "Lead in Blood and Urine by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1135",
        "Identifier": "8004",
        "Context": "NIOSH",
        "Name": "Polychlorobiphenyls in Serum by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "829",
        "Identifier": "8005",
        "Context": "HACH",
        "Name": "Oil and Grease in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1136",
        "Identifier": "8005(B)",
        "Context": "NIOSH",
        "Name": "8005 B  ~ Elements in blood or tissue by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1137",
        "Identifier": "8005(T)",
        "Context": "NIOSH",
        "Name": "8005 T  ~ Elements in blood or tissue by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "830",
        "Identifier": "8008",
        "Context": "HACH",
        "Name": "Total Iron in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "831",
        "Identifier": "8009",
        "Context": "HACH",
        "Name": "Zinc in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "832",
        "Identifier": "8010",
        "Context": "HACH",
        "Name": "Acidity by Titration",
        "Description": "8010 ~ Hach Co. . Acidity of Water by Buret Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9638\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1647",
        "Identifier": "8010",
        "Context": "USEPA",
        "Name": "Halogenated Volatile Organics by Gas Chromatography",
        "Description": "Determination of halogenated volatile organic compounds in liquid and solid waste matrices via GC-ECD.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-07-12T14:15:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2192",
        "Identifier": "8010B",
        "Context": "USEPA",
        "Name": "8010 B ~ Halogenated Volatile Organics by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2193",
        "Identifier": "8011",
        "Context": "USEPA",
        "Name": "EDB and DBCP by Gas Chromatography",
        "Description": "8011 ~ EPA-RCA . EDB and DBCP by Microextraction and Gas Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5240\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4705",
        "Identifier": "8012",
        "Context": "HACH",
        "Name": "Aluminum in water by Aluminon Indicator",
        "Description": "8012 ~ Hach Co. . Aluminum in water by Aluminon Indicator",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9639\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833",
        "Identifier": "8013",
        "Context": "HACH",
        "Name": "Arsenic in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6215",
        "Identifier": "8015",
        "Context": "USEPA",
        "Name": "Nonhalogenated Organics by GC\FID",
        "Description": "Analyzes nonhalogenated volatile organics (like alcohols\ketones) and Gasoline\Diesel Range Organics (GRO\DRO) using Flame Ionization Detection.",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2194",
        "Identifier": "8015A",
        "Context": "USEPA",
        "Name": "8015 A ~ Non-Halogenated Volatile Organics",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2195",
        "Identifier": "8015B",
        "Context": "USEPA",
        "Name": "8015 B ~ Non-Halogenated Organics Using GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5034",
        "Identifier": "8015C",
        "Context": "USEPA",
        "Name": "8015 C ~ Nonhalogenated Organics by GC-FID",
        "Description": "8015C ~ EPA-RCA . Nonhalogenated Organics by GC-FID",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5241\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "873626",
        "Identifier": "8015D",
        "Context": "USEPA",
        "Name": "Nonhalogenated Organics Using GC\FID",
        "Description": "8015D ~ USEPA . https:\\www.epa.gov\esam\epa-method-8015d-sw-846-nonhalogenated-organics-using-gcfid",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-06-29T11:39:45 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5310",
        "Identifier": "8015DRO",
        "Context": "USEPA",
        "Name": "8015 DRO ~ Total petroleum hydrocarbons by GC-FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-06-04T10:56:33 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "795394",
        "Identifier": "8015M",
        "Context": "USEPA",
        "Name": "GC Analysis of Gasoline Range Organics (GRO) on VOCOL® after Purge & Trap using \"M\" Trap",
        "Description": "Recommended for determining total petroleum hydrocarbons in soils, sediments, and solid wastes. 8015M is a known modification of Method 8015B that provides an analysis of motor oil range organics. Sources: http:\\ocdimage.emnrd.state.nm.us\imaging\filestore\SantaFeAdmin\CF\259041\15239_58_CF.pdf https:\\www.sigmaaldrich.com\technical-documents\articles\analytical-applications\gc\us-epa-method-8015-modified-gc-analysis-of-gasoline-range-organics-gro-g005229.html",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-07-29T19:22:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6216",
        "Identifier": "8020",
        "Context": "USEPA",
        "Name": "Aromatic Volatiles by GC\PID",
        "Description": "Legacy method for BTEX (Benzene, Toluene, Ethylbenzene, Xylene) using Photoionization Detection. Often replaced by 8021 or 8260.",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2196",
        "Identifier": "8020A",
        "Context": "USEPA",
        "Name": "8020 A ~ Aromatic Volatile Organics by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6217",
        "Identifier": "8021",
        "Context": "USEPA",
        "Name": "Volatiles by GC\PID\ELCD",
        "Description": "Analyzes aromatic and halogenated volatiles using dual detectors (PID and Electrolytic Conductivity Detector).",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "834",
        "Identifier": "8021",
        "Context": "HACH",
        "Name": "Free Chlorine in Water by DPD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6218",
        "Identifier": "8021A",
        "Context": "USEPA",
        "Name": "Volatiles by GC\PID\ELCD",
        "Description": "Analyzes aromatic and halogenated volatiles using dual detectors (PID and Electrolytic Conductivity Detector).",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2197",
        "Identifier": "8021A(ELCD)",
        "Context": "USEPA",
        "Name": "8021 A ELCD  ~ Halogenated and Aromatic Volatiles",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2198",
        "Identifier": "8021A(PID)",
        "Context": "USEPA",
        "Name": "8021 A PID  ~ Halo and Aromatic Volatiles - CGC\PID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3165",
        "Identifier": "8021B",
        "Context": "USEPA",
        "Name": "8021 B ~ Aromatic and Halogenated Volatiles by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2009-05-21T13:49:21 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5035",
        "Identifier": "8021B (BY GC-ELCD)",
        "Context": "USEPA",
        "Name": "8021 B BY GC ELCD  ~ Aromatic and Halogenated Volatiles by GC-ELCD",
        "Description": "8021B (by GC-ELCD) ~ EPA-RCA . Aromatic and Halogenated Volatiles by GC-ELCD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5224\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5036",
        "Identifier": "8021B (BY GC-PID)",
        "Context": "USEPA",
        "Name": "8021 B BY GC PID  ~ Aromatic and Halogenated Volatiles by GC-PID",
        "Description": "8021B (by GC-PID) ~ EPA-RCA . Aromatic and Halogenated Volatiles by GC-PID",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5242\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "835",
        "Identifier": "8023",
        "Context": "HACH",
        "Name": "Hexavalent Chromium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "836",
        "Identifier": "8024",
        "Context": "HACH",
        "Name": "Total Chromium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3023",
        "Identifier": "8025",
        "Context": "HACH",
        "Name": "Color, APHA Platinum-Cobalt",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:20:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5909",
        "Identifier": "8026",
        "Context": "HACH",
        "Name": "For determination of Copper by the Bicinchoninate method.",
        "Description": "https:\\www.hach.com\p-cuver-2-copper-reagent-accuvac-ampules-pk25\2504025",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-04-14T13:51:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "837",
        "Identifier": "8027",
        "Context": "HACH",
        "Name": "Cyanide in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "838",
        "Identifier": "8029",
        "Context": "HACH",
        "Name": "Fluoride in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5890",
        "Identifier": "8030",
        "Context": "HACH",
        "Name": "8030 ~ HACH, Calmagite Colorimetric Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-09-22T18:48:37 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2199",
        "Identifier": "8030A",
        "Context": "USEPA",
        "Name": "8030 A ~ Acrolein and Acrylonitrile by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2200",
        "Identifier": "8031",
        "Context": "USEPA",
        "Name": "Acrylonitrile by Gas Chromatography",
        "Description": "8031 ~ EPA-RCA . Acrylonitrile in Water Using Gas Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5243\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2201",
        "Identifier": "8032",
        "Context": "USEPA",
        "Name": "Acrylamide by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2202",
        "Identifier": "8032A",
        "Context": "USEPA",
        "Name": "8032 A ~ Acrylamide by Gas Chromatography",
        "Description": "8032A ~ EPA-RCA . Acrylamide in Aqueous Matrices Using Gas Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5219\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2203",
        "Identifier": "8033",
        "Context": "USEPA",
        "Name": "Acetonitrile by GC\NPD",
        "Description": "8033 ~ EPA-RCA . Acetonitrile in Aqueous Matrices Using Gas Chromatography with Nitrogen-Phosphorus Detection",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5220\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "839",
        "Identifier": "8033",
        "Context": "HACH",
        "Name": "Lead in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "840",
        "Identifier": "8034",
        "Context": "HACH",
        "Name": "Manganese in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "841",
        "Identifier": "8037",
        "Context": "HACH",
        "Name": "Nickel in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "842",
        "Identifier": "8038",
        "Context": "HACH",
        "Name": "Ammonia Nitrogen in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743090",
        "Identifier": "8039",
        "Context": "HACH",
        "Name": "Nitrate, Cadmium Reduction Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-12-05T15:40:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2204",
        "Identifier": "8040A(ECD)",
        "Context": "USEPA",
        "Name": "8040 A ECD  ~ Phenols by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2205",
        "Identifier": "8040A(FID)",
        "Context": "USEPA",
        "Name": "8040 A FID  ~ Phenols by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2206",
        "Identifier": "8041",
        "Context": "USEPA",
        "Name": "Phenols by Capillary Column GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5037",
        "Identifier": "8041A",
        "Context": "USEPA",
        "Name": "8041 A ~ Phenols by Gas Chromatography",
        "Description": "8041A ~ EPA-RCA . Phenols by Gas Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5221\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "843",
        "Identifier": "8043",
        "Context": "HACH",
        "Name": "Biological Oxygen Demand in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "844",
        "Identifier": "8047",
        "Context": "HACH",
        "Name": "Phenols in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "845",
        "Identifier": "8048",
        "Context": "HACH",
        "Name": "Reactive Phosphorus in Water",
        "Description": "8048 ~ Hach Co. . Orthophosphate by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4828\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "121743",
        "Identifier": "8049",
        "Context": "HACH",
        "Name": "Tetraphenylborate Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2011-03-22T17:59:46 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "846",
        "Identifier": "8051",
        "Context": "HACH",
        "Name": "Sulfate in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6219",
        "Identifier": "8060",
        "Context": "USEPA",
        "Name": "Phthalate Esters by GC\ECD",
        "Description": "Specifically targets phthalate esters in water and soil extracts using Electron Capture Detection.",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2207",
        "Identifier": "8060(ECD)",
        "Context": "USEPA",
        "Name": "8060 ECD  ~ Phthalate Esters by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2208",
        "Identifier": "8060(FID)",
        "Context": "USEPA",
        "Name": "8060 FID  ~ Phthalate Esters by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2209",
        "Identifier": "8061",
        "Context": "USEPA",
        "Name": "Phthalate Esters by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2210",
        "Identifier": "8061A",
        "Context": "USEPA",
        "Name": "8061 A ~ Phthalate Esters by Capillary GC\ECD",
        "Description": "8061A ~ EPA-RCA . Phthalate Esters in Aqueous and Solid Matrices by GC-ECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5222\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2211",
        "Identifier": "8070",
        "Context": "USEPA",
        "Name": "Nitrosamines by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2212",
        "Identifier": "8070A",
        "Context": "USEPA",
        "Name": "8070 A ~ Nitrosamines by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "847",
        "Identifier": "8071",
        "Context": "HACH",
        "Name": "Sulfite in Water by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "848",
        "Identifier": "8074(A)",
        "Context": "HACH",
        "Name": "8074 A  ~ Total, Fecal and E. Coli Coliform",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "849",
        "Identifier": "8074(B)",
        "Context": "HACH",
        "Name": "8074 B  ~ Total, Fecal and E. Coli Coliform",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6099",
        "Identifier": "8080",
        "Context": "USEPA",
        "Name": "ORGANOCHLORINE PESTICIDES AND PCBS",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\semspub.epa.gov\work\05\157360.pdf",
        "LastChangeDate": "2026-03-13T19:43:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2213",
        "Identifier": "8080A",
        "Context": "USEPA",
        "Name": "8080 A ~ Pesticides and PCBs",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3149",
        "Identifier": "8081",
        "Context": "USEPA",
        "Name": "Organochlorine Pesticides and PCBs",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2008-07-22T09:31:01 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2214",
        "Identifier": "8081(S)",
        "Context": "USEPA",
        "Name": "8081 S  ~ Organochlorine Pesticides and PCBs",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2215",
        "Identifier": "8081(W)",
        "Context": "USEPA",
        "Name": "8081 W  ~ Organochlorine Pesticides and PCBs",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3150",
        "Identifier": "8081A",
        "Context": "USEPA",
        "Name": "8081 A ~ Organochlorine Pesticides and PCBs by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2008-07-22T09:31:01 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2216",
        "Identifier": "8081A(SNB)",
        "Context": "USEPA",
        "Name": "8081 A SNB  ~ Organochlorine Pesticides and PCBs by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2217",
        "Identifier": "8081A(SWB)",
        "Context": "USEPA",
        "Name": "8081 A SWB  ~ Organochlorine Pesticides and PCBs by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2218",
        "Identifier": "8081A(WNB)",
        "Context": "USEPA",
        "Name": "8081 A WNB  ~ Organochlorine Pesticides and PCBs by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2219",
        "Identifier": "8081A(WWB)",
        "Context": "USEPA",
        "Name": "8081 A WWB  ~ Organochlorine Pesticides and PCBs by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5038",
        "Identifier": "8081B",
        "Context": "USEPA",
        "Name": "8081 B ~ Organochlorine Pesticides by GC-ECD",
        "Description": "8081B ~ EPA-RCA . Organochlorine Pesticides by GC-ECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4723\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3156",
        "Identifier": "8082",
        "Context": "USEPA",
        "Name": "Polychlorinated Biphenyls (PCBs) by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2008-11-12T10:58:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2220",
        "Identifier": "8082(S)",
        "Context": "USEPA",
        "Name": "8082 S  ~ PCBs as Aroclors by Capillary Column GC",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2221",
        "Identifier": "8082(W)",
        "Context": "USEPA",
        "Name": "8082 W  ~ PCBs as Aroclors by Capillary Column GC",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5039",
        "Identifier": "8082A",
        "Context": "USEPA",
        "Name": "8082 A ~ Polychlorinated Biphenyls (PCBs) by Gas Chromatography",
        "Description": "8082A ~ EPA-RCA . Polychlorinated Biphenyls (PCBs) by Gas Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9356\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2222",
        "Identifier": "8090(ECD)",
        "Context": "USEPA",
        "Name": "8090 ECD  ~ Nitroaromatics and Cyclic Ketones",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2223",
        "Identifier": "8090(FID)",
        "Context": "USEPA",
        "Name": "8090 FID  ~ Nitroaromatics and Cyclic Ketones",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2224",
        "Identifier": "8091",
        "Context": "USEPA",
        "Name": "Nitroaromatics and Cyclic Ketones",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5040",
        "Identifier": "8091 (BY GC-ECD)",
        "Context": "USEPA",
        "Name": "8091 BY GC ECD  ~ Nitroaromatics and Cyclic Ketones in Water, Soil, and Waste by GC-ECD or GC-NPD",
        "Description": "8091 (by GC-ECD) ~ EPA-RCA . Nitroaromatics and Cyclic Ketones in Water, Soil, and Waste by GC-ECD or GC-NPD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5223\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5041",
        "Identifier": "8091 (BY GC-NPD)",
        "Context": "USEPA",
        "Name": "8091 BY GC NPD  ~ Nitroaromatics and Cyclic Ketones in Water, Soil, and Waste by GC-NPD",
        "Description": "8091 (by GC-NPD) ~ EPA-RCA . Nitroaromatics and Cyclic Ketones in Water, Soil, and Waste by GC-NPD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5225\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2225",
        "Identifier": "8100",
        "Context": "USEPA",
        "Name": "Polynuclear Aromatic Hydrocarbons by GC",
        "Description": "8100 ~ EPA-RCA . Polynuclear Aromatic Hydrocarbons in Water and Solid Samples by GC-FID",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5256\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2226",
        "Identifier": "8110",
        "Context": "USEPA",
        "Name": "Haloethers by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5042",
        "Identifier": "8111",
        "Context": "USEPA",
        "Name": "Haloethers in Water, Soil, and Waste Samples by Chromatography and Electron Capture Detection",
        "Description": "8111 ~ EPA-RCA . Haloethers in Water, Soil, and Waste Samples by Chromatography and Electron Capture Detection",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5257\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2227",
        "Identifier": "8111(S)",
        "Context": "USEPA",
        "Name": "8111 S  ~ Haloethers by Gas Chromatography",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2228",
        "Identifier": "8111(W)",
        "Context": "USEPA",
        "Name": "8111 W  ~ Haloethers by Gas Chromatography",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3238",
        "Identifier": "8112",
        "Context": "HACH",
        "Name": "Total Iron - TPTZ Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-01-28T13:44:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5295",
        "Identifier": "8113",
        "Context": "HACH",
        "Name": "Mercuric Thiocyanate Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-12-16T09:04:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "850",
        "Identifier": "8116",
        "Context": "HACH",
        "Name": "Chemical Oxygen Demand in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2229",
        "Identifier": "8120A",
        "Context": "USEPA",
        "Name": "8120 A ~ Chlorinated Hydrocarbons by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2230",
        "Identifier": "8121",
        "Context": "USEPA",
        "Name": "Chlorinated Hydrocarbons by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2231",
        "Identifier": "8131",
        "Context": "USEPA",
        "Name": "Aniline by GC: Capillary Column",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "851",
        "Identifier": "8131",
        "Context": "HACH",
        "Name": "Sulfide in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2232",
        "Identifier": "8140",
        "Context": "USEPA",
        "Name": "Organophosphorus Pesticides by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3155",
        "Identifier": "8141",
        "Context": "USEPA",
        "Name": "Organophosphorus Compounds by Gas Chromatography: Capillary Column Technique",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2008-11-12T10:58:16 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2233",
        "Identifier": "8141(S)",
        "Context": "USEPA",
        "Name": "8141 S  ~ Organophosphorus Compounds in Soil by GC",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2234",
        "Identifier": "8141(W)",
        "Context": "USEPA",
        "Name": "8141 W  ~ Organophosphorus Compounds in Water",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6100",
        "Identifier": "8141A",
        "Context": "USEPA",
        "Name": "ORGANOPHOSPHORUS PESTICIDES",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\19january2017snapshot.epa.gov\sites\production\files\2015-06\documents\8141.pdf",
        "LastChangeDate": "2026-03-13T19:43:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2235",
        "Identifier": "8141A(S)",
        "Context": "USEPA",
        "Name": "8141 A S  ~ Organophosphorus Compounds in Soil by GC",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2236",
        "Identifier": "8141A(W)",
        "Context": "USEPA",
        "Name": "8141 A W  ~ Organophosphorus Compounds in Water",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6101",
        "Identifier": "8141B",
        "Context": "USEPA",
        "Name": "ORGANOPHOSPHORUS COMPOUNDS BY GAS CHROMATOGRAPHY",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\8141b.pdf",
        "LastChangeDate": "2026-03-13T19:43:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5043",
        "Identifier": "8141B (BY GC-FPD)",
        "Context": "USEPA",
        "Name": "8141 B BY GC FPD  ~ Organophosphorus Compounds in Water, Soil, and Waste Samples by GC-FPD",
        "Description": "8141B (by GC-FPD) ~ EPA-RCA . Organophosphorus Compounds in Water, Soil, and Waste Samples by GC-FPD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5258\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5044",
        "Identifier": "8141B (BY GC-NPD)",
        "Context": "USEPA",
        "Name": "8141 B BY GC NPD  ~ Organophosphorus Compounds in Water, Soil, and Waste Samples by GC-NPD",
        "Description": "8141B (by GC-NPD) ~ EPA-RCA . Organophosphorus Compounds in Water, Soil, and Waste Samples by GC-NPD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5226\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5332",
        "Identifier": "8146",
        "Context": "HACH",
        "Name": "Ferrous Iron in Waters",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-01-26T16:00:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "834734",
        "Identifier": "8149",
        "Context": "HACH",
        "Name": "Manganese, LR, 1-(2-Pyridylazo)-2-Naphthol PAN Method",
        "Description": "0.006 to 0.700 mg\L Mn (LR).  Scope and application: For water and wastewater. digestion is necessary for total manganese determinations. Adapted from Goto, K., et al., Talanta, 24, 652-3 (1977). https:\\www.hach.com\asset-get.download.jsa?id=7639983728",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-11-17T12:35:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2237",
        "Identifier": "8150B",
        "Context": "USEPA",
        "Name": "8150 B ~ Chlorinated Herbicides by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6220",
        "Identifier": "8151",
        "Context": "USEPA",
        "Name": "Chlorinated Herbicides by GC\ECD",
        "Description": "Analyzes acidic herbicides (like 2,4-D) through extraction and derivatization to esters.",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\8151a.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2238",
        "Identifier": "8151(S)",
        "Context": "USEPA",
        "Name": "8151 S  ~ Chlorinated Herbicides in Soils by GC",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2239",
        "Identifier": "8151(W)",
        "Context": "USEPA",
        "Name": "8151 W  ~ Chlorinated Herbicides in Water by GC",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3154",
        "Identifier": "8151A",
        "Context": "USEPA",
        "Name": "8151 A ~ Chlorinated Herbicides by GC using Methylation or Pentafluorobenzylation Derivatization",
        "Description": "8151A ~ EPA-RCA . Chlorinated Herbicides and Related Compounds in Water, Soil, and Waste Samples by Capillary GC-ECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5259\",
        "LastChangeDate": "2008-11-12T10:58:16 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6221",
        "Identifier": "8151B",
        "Context": "USEPA",
        "Name": "Chlorinated Herbicides (Rev B)",
        "Description": "The updated version of 8151, providing improved precision for herbicide extraction and analysis.",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\8151a.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5560",
        "Identifier": "8155",
        "Context": "HACH",
        "Name": "Salicylate Method Powder Pillows",
        "Description": "http:\\www.hach.com\asset-get.download.jsa?id=7639982436",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-08-08T10:29:19 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "852",
        "Identifier": "8156",
        "Context": "HACH",
        "Name": "pH in Water",
        "Description": "8156 ~ Hach Co. . pH in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4724\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "853",
        "Identifier": "8157",
        "Context": "HACH",
        "Name": "Dissolved Oxygen in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "854",
        "Identifier": "8158",
        "Context": "HACH",
        "Name": "Total Nonfilterable Residue Solids",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "855",
        "Identifier": "8160",
        "Context": "HACH",
        "Name": "Conductivity in Water by Direct Measurement",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "856",
        "Identifier": "8163",
        "Context": "HACH",
        "Name": "Total Filterable Solids",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "857",
        "Identifier": "8164",
        "Context": "HACH",
        "Name": "Volatile Nonfilterable Solids in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "858",
        "Identifier": "8165",
        "Context": "HACH",
        "Name": "Settleable Matter Solids in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "859",
        "Identifier": "8167",
        "Context": "HACH",
        "Name": "Total Chlorine in Water by DPD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "860",
        "Identifier": "8168",
        "Context": "HACH",
        "Name": "Total Chlorine in Water by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "121744",
        "Identifier": "8171",
        "Context": "HACH",
        "Name": "Nitrates in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2011-03-22T17:59:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3024",
        "Identifier": "8172",
        "Context": "HACH",
        "Name": "Fecal Streptococci, MPN",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:20:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5303",
        "Identifier": "818-87T",
        "Context": "BL",
        "Name": "818-87T ~ Total Nitrogen (BRAN AND LUEBBE METHOD 1987)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-03-09T15:23:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3025",
        "Identifier": "8186",
        "Context": "HACH",
        "Name": "Silica, Colorimetric",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:20:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "861",
        "Identifier": "8190",
        "Context": "HACH",
        "Name": "Total Phosphorus in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6034",
        "Identifier": "8192",
        "Context": "HACH",
        "Name": "Cadmium Reduction",
        "Description": "For determination of Nitrate Nitrogen by the Cadmium Reduction method.",
        "QualifierType": "",
        "URL": "https:\\supply.coreandmain.com\Hach-Nitrogen-Nitrate-Reagent-Set-LR-25-mL-Cadmium-Reduction-2245100",
        "LastChangeDate": "2024-05-16T17:28:16 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3026",
        "Identifier": "8195",
        "Context": "HACH",
        "Name": "Determination of Turbidity",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:20:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4706",
        "Identifier": "8201",
        "Context": "HACH",
        "Name": "Acidity of Water",
        "Description": "8201 ~ Hach Co. . Acidity of Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9640\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4707",
        "Identifier": "8202",
        "Context": "HACH",
        "Name": "Phenolphthalein (Total) Acidity of Water",
        "Description": "8202 ~ Hach Co. . Phenolphthalein (Total) Acidity of Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9637\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3196",
        "Identifier": "8203",
        "Context": "HACH",
        "Name": "Phenolphthalein and Total Alkalinity by Digital Titrator",
        "Description": "8203 ~ Hach Co. . Alkalinity of Water By Digital Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9634\",
        "LastChangeDate": "2010-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "762673",
        "Identifier": "8207",
        "Context": "HACH",
        "Name": "Chloride in water by digital titration - silver nitrate method",
        "Description": "Chloride DOC316.53.01171 Silver Nitrate Method Method 8207 10 to 10,000 mg\L as Cl- Digital Titrator Scope and application: For water, wastewater and seawater. Test preparation. URL: https:\\www.hach.com\asset-get.download-en.jsa?code=56134",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-08-29T16:02:06 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6222",
        "Identifier": "82080",
        "Context": "USEPA",
        "Name": "Elevation of Water Surface",
        "Description": "A legacy STORET\Region 5 parameter code used to report the elevation of water levels (in feet) above a datum (e.g., NGVD 1929).",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "862",
        "Identifier": "8219",
        "Context": "HACH",
        "Name": "Acidity in Water",
        "Description": "8219 ~ Hach Co. . Acidity, Methyl Orange, of Water by Buret Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9635\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "863",
        "Identifier": "8221",
        "Context": "HACH",
        "Name": "Alkalinity by Buret Titration",
        "Description": "8221 ~ Hach Co. . Alkalinity by Buret Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9636\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "864",
        "Identifier": "8222",
        "Context": "HACH",
        "Name": "Calcium Hardness in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "865",
        "Identifier": "8224",
        "Context": "HACH",
        "Name": "Chloride by Buret Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "866",
        "Identifier": "8225",
        "Context": "HACH",
        "Name": "Chloride by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "867",
        "Identifier": "8226",
        "Context": "HACH",
        "Name": "Total Hardness in Water",
        "Description": "8226 ~ Hach Co. . Total Hardness in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4725\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "868",
        "Identifier": "8229",
        "Context": "HACH",
        "Name": "Dissolved Oxygen in Water",
        "Description": "8229 ~ Hach Co. . Dissolved Oxygen - Winkler Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4786\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "869",
        "Identifier": "8230",
        "Context": "HACH",
        "Name": "Chemical Oxygen Demand in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5294",
        "Identifier": "8233",
        "Context": "HACH",
        "Name": "Buret Titration Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-12-16T09:04:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5297",
        "Identifier": "8237",
        "Context": "HACH",
        "Name": "Absorptometric Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-12-16T09:04:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6223",
        "Identifier": "8240",
        "Context": "USEPA",
        "Name": "Volatile Organics by GC\MS",
        "Description": "Legacy method for VOCs using packed-column Gas Chromatography\Mass Spectrometry.",
        "QualifierType": "",
        "URL": "https:\\rcrapublic.epa.gov\files\13475.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3093",
        "Identifier": "8240B",
        "Context": "USEPA",
        "Name": "8240 B ~ Volatile Organics by GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-12-20T10:51:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2240",
        "Identifier": "8240B(S)",
        "Context": "USEPA",
        "Name": "8240 B S  ~ Volatile Organics in Soil by GC\MS",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2241",
        "Identifier": "8240B(W)",
        "Context": "USEPA",
        "Name": "8240 B W  ~ Volatile Organics in Water by GC\MS",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3027",
        "Identifier": "8241",
        "Context": "HACH",
        "Name": "Heterotrophic Bacteria, Pour Plate",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:20:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2242",
        "Identifier": "8250A",
        "Context": "USEPA",
        "Name": "8250 A ~ Semivolatile Organics in Water by GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6254",
        "Identifier": "8260",
        "Context": "USEPA",
        "Name": "VOCs by GC\MS",
        "Description": "Analysis of polychlorinated dibenzo-p-dioxins and Dibenzofurans.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-04-17T20:27:29 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2243",
        "Identifier": "8260A",
        "Context": "USEPA",
        "Name": "8260 A ~ Volatile Organics in Waste by CGC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2244",
        "Identifier": "8260B",
        "Context": "USEPA",
        "Name": "8260 B ~ Volatile Organics by CGC\MS",
        "Description": "8260B ~ EPA-RCA . Volatile Organic Compounds by GC\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7041\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5550",
        "Identifier": "8260B (SIM)",
        "Context": "USEPA",
        "Name": "Volatile Organic Compounds by GC\MS using SIM",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-05-12T07:10:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5264",
        "Identifier": "8260C",
        "Context": "USEPA",
        "Name": "8260 C ~ Volatile Organic Compounds by GC\MS",
        "Description": "Volatile organic compounds in a variety of solid waste matrices regardless of water content, by gas chromatography\mass spectrometry. URL: http:\\www.epa.gov\osw\hazard\testmethods\pdfs\8260c.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-05-22T09:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764620",
        "Identifier": "8260D",
        "Context": "USEPA",
        "Name": "8260 D ~ Volatile Organic Compounds by GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-02-28T10:47:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "871090",
        "Identifier": "8260D (SIM)",
        "Context": "USEPA",
        "Name": "Volatile Organic Compounds by GC\MS using SIM",
        "Description": "Selected ion monitoring (SIM) is a major application for GC-MS and allows the instrument to be used in its most sensitive mode for quantitative measurements.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-05-19T11:26:22 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "883850",
        "Identifier": "8260M",
        "Context": "USEPA",
        "Name": "TPH-F by GC\MS",
        "Description": "Total Petroleum Hydrocarbons - Gasoline Range (TPH-g) are relatively short hydrocarbons that easily evaporate and are flammable. Total Petroleum Hydrocarbons - (TPH-d) are medium length hydrocarbons that don't evaporate as well as the smaller compounds, but do produce a lot of energy when burned.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-12-20T12:50:44 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6224",
        "Identifier": "8270",
        "Context": "USEPA",
        "Name": "Semivolatile Organics (SVOCs)",
        "Description": "The base method for a wide range of semivolatile organic compounds (Phenols, PAHs, Phthalates) by capillary GC\MS.",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6225",
        "Identifier": "8270 (SIM)",
        "Context": "USEPA",
        "Name": "SVOCs by GC\MS (SIM Mode)",
        "Description": "Uses \"Selected Ion Monitoring\" to achieve much lower detection limits for specific SVOCs like 1,4-Dioxane.",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6226",
        "Identifier": "8270A",
        "Context": "USEPA",
        "Name": "SVOCs by GC\MS (Rev A)",
        "Description": "Revision A of the primary SVOC protocol.",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-08\documents\enbridge_final_qapp20100819.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6227",
        "Identifier": "8270B",
        "Context": "USEPA",
        "Name": "SVOCs by GC\MS (Rev B)",
        "Description": "Revision B of the primary SVOC protocol.",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2245",
        "Identifier": "8270B(S)",
        "Context": "USEPA",
        "Name": "8270 B S  ~ Semivolatile Organics in Soil by GC\MS",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2246",
        "Identifier": "8270B(W)",
        "Context": "USEPA",
        "Name": "8270 B W  ~ Semivolatile Organics in Water by GC\MS",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3092",
        "Identifier": "8270C",
        "Context": "USEPA",
        "Name": "8270 C ~ Semivolatile Organic Compounds by CGC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-12-20T10:51:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5545",
        "Identifier": "8270C (SIM)",
        "Context": "USEPA",
        "Name": "8270 C SIM  ~ Semivolatile Organic Compounds by Gas Chromatography\Mass Spectrometry (GC\MS) Using SIM",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-04-29T07:46:15 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2247",
        "Identifier": "8270C(S)",
        "Context": "USEPA",
        "Name": "8270 C S  ~ Semivolatile Organic Compounds by CGC\MS",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2248",
        "Identifier": "8270C(W)",
        "Context": "USEPA",
        "Name": "8270 C W  ~ Semivolatile Organic Compounds by CGC\MS",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3166",
        "Identifier": "8270D",
        "Context": "USEPA",
        "Name": "8270 D ~ Semivolatile Organic Compounds by GC\MS",
        "Description": "8270D ~ EPA-RCA . Semivolatile Organic Compounds by GC\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4726\",
        "LastChangeDate": "2009-05-21T13:49:21 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5546",
        "Identifier": "8270D (SIM)",
        "Context": "USEPA",
        "Name": "8270 D SIM  ~ Semivolatile Organic Compounds by GC\MS use of Selected Ion Monitoring (SIM)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-04-29T07:46:15 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "810570",
        "Identifier": "8270D LL",
        "Context": "USEPA",
        "Name": "Semivolatile Organic Compounds (GC\MS) Low Level by Method 8270D",
        "Description": "USEPA 8270D LL ~ https:\\www.epa.gov\sites\production\files\2014-03\documents\rawp_progress_report_combined.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-10-07T18:25:41 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "778960",
        "Identifier": "8270E",
        "Context": "USEPA",
        "Name": "Semivolatile Organic Compounds by GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-04-06T14:50:21 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6016",
        "Identifier": "8270E (SIM)",
        "Context": "USEPA",
        "Name": "8270 E SIM  ~ Semivolatile Organic Compounds by GC\MS use of Selected Ion Monitoring (SIM)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2024-04-16T15:25:20 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3028",
        "Identifier": "8271",
        "Context": "HACH",
        "Name": "Residue, Total Solids",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:20:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2249",
        "Identifier": "8275",
        "Context": "USEPA",
        "Name": "Screening Semivolatile Organics",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2250",
        "Identifier": "8275A",
        "Context": "USEPA",
        "Name": "8275A ~ PAHs and PCBs in Soils\Wastes: TE\GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "870",
        "Identifier": "8276",
        "Context": "HACH",
        "Name": "Total Volatile and Fixed Solids",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3029",
        "Identifier": "8277",
        "Context": "HACH",
        "Name": "Residue, Volatile, Filterable (dissolved)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:20:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6255",
        "Identifier": "8280",
        "Context": "USEPA",
        "Name": "Dioxins\Furans by GC\LC-MS",
        "Description": "POLYCHLORINATED DIBENZO-P-DIOXINS AND DIBENZOFURANS",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-04-17T20:27:29 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2251",
        "Identifier": "8280(S)",
        "Context": "USEPA",
        "Name": "8280 S  ~ Polychorinated Dioxins and Furans",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2252",
        "Identifier": "8280(W)",
        "Context": "USEPA",
        "Name": "8280 W  ~ Polychlorinated Dioxins and Furans",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6228",
        "Identifier": "8280A",
        "Context": "USEPA",
        "Name": "Dioxins and Furans by GC\MS",
        "Description": "Analyzes Polychlorinated Dibenzo-p-Dioxins and Dibenzofurans using Low-Resolution GC\MS.",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2253",
        "Identifier": "8280A(O)",
        "Context": "USEPA",
        "Name": "8280 A O  ~ Polychorinated Dioxins and Furans",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2254",
        "Identifier": "8280A(S)",
        "Context": "USEPA",
        "Name": "8280 A S  ~ Polychorinated Dioxins and Furans",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2255",
        "Identifier": "8280A(W)",
        "Context": "USEPA",
        "Name": "8280 A W  ~ Polychorinated Dioxins and Furans",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4708",
        "Identifier": "8288",
        "Context": "HACH",
        "Name": "Acid\Base Milliequivalent Determination Using Sodium Hydroxide",
        "Description": "8288 ~ Hach Co. . Acid\Base Milliequivalent Determination Using Sodium Hydroxide",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9632\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4709",
        "Identifier": "8289",
        "Context": "HACH",
        "Name": "Acid\Base Milliequivalent Determination Using Sulfuric Acid",
        "Description": "8289 ~ Hach Co. . Acid\Base Milliequivalent Determination Using Sulfuric Acid",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9633\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2256",
        "Identifier": "8290",
        "Context": "USEPA",
        "Name": "Polychlorinated PCDDs and PCDFs by HRGC\HRMS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "19",
        "Identifier": "8290A",
        "Context": "USEPA",
        "Name": "8290A ~ USEPA; POLYCHLORINATED DIBENZO-p-DIOXINS (PCDDs) AND POLYCHLORINATED DIBENZOFURANS (PCDFs) BY HIGH-RESOLUTION GAS CHROMATOGRAPHY\HIGH-RESOLUTION MASS SPECTROMETRY (HRGC\HRMS)",
        "Description": "Method 8290A: Polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) by high-resolution gas chromatography\high-resolution mass spectrometry (HRGC\HRMS) (https:\\www.epa.gov\sites\default\files\2015-07\documents\epa-8290a.pdf)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\13518\",
        "LastChangeDate": "2025-09-24T11:10:30 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1138",
        "Identifier": "8300",
        "Context": "NIOSH",
        "Name": "Hippuric Acid in Urine by Visible Absorption",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1139",
        "Identifier": "8301",
        "Context": "NIOSH",
        "Name": "Hippuric and Methyl Hippuric Acids",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1140",
        "Identifier": "8302",
        "Context": "NIOSH",
        "Name": "MBOCA in Urine by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1141",
        "Identifier": "8303",
        "Context": "NIOSH",
        "Name": "Pentachlorophenol in Urine by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1142",
        "Identifier": "8305",
        "Context": "NIOSH",
        "Name": "Phenol and p-Cresol in Urine by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1143",
        "Identifier": "8306",
        "Context": "NIOSH",
        "Name": "Benzidine in Urine by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1144",
        "Identifier": "8308",
        "Context": "NIOSH",
        "Name": "Fluoride in Urine by ISE",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1145",
        "Identifier": "8310",
        "Context": "NIOSH",
        "Name": "Metals in Urine by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2257",
        "Identifier": "8310",
        "Context": "USEPA",
        "Name": "Polynuclear Aromatic Hydrocarbons",
        "Description": "8310 ~ EPA-RCA . Polynuclear Aromatic Hydrocarbons by HPLC Using Ultraviolet and Fluorescence Detectors",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4727\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "871",
        "Identifier": "8311",
        "Context": "HACH",
        "Name": "Ozone in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2258",
        "Identifier": "8315",
        "Context": "USEPA",
        "Name": "Carbonyl Compounds by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5883",
        "Identifier": "8315A",
        "Context": "USEPA",
        "Name": "Carbonyl Compounds in Water by HPLC and UV\vis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:08 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2259",
        "Identifier": "8315A(LLE)",
        "Context": "USEPA",
        "Name": "8315 A LLE  ~ Carbonyl Compounds by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2260",
        "Identifier": "8315A(LSE)",
        "Context": "USEPA",
        "Name": "8315 A LSE  ~ Carbonyl Compounds by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2261",
        "Identifier": "8316",
        "Context": "USEPA",
        "Name": "Acrylamide, Acetonitrile and Acrolein",
        "Description": "8316 ~ EPA-RCA . Acrylamide, Acrylonitrile, and Acrolein by HPLC",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10001\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2262",
        "Identifier": "8318(S)",
        "Context": "USEPA",
        "Name": "8318 S  ~ n-Methylcarbamates by HPLC",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2263",
        "Identifier": "8318(W)",
        "Context": "USEPA",
        "Name": "8318 W  ~ n-Methylcarbamates by HPLC",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5884",
        "Identifier": "8318A",
        "Context": "USEPA",
        "Name": "N-methylcarbamates By High Performance Liquid Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:08 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2264",
        "Identifier": "8321",
        "Context": "USEPA",
        "Name": "Non-Volatile Compounds by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2265",
        "Identifier": "8321A",
        "Context": "USEPA",
        "Name": "8321 A ~ Non-Volatile Compounds by HPLC\TS\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5045",
        "Identifier": "8321B",
        "Context": "USEPA",
        "Name": "8321B ~ Nonvolatiles by HPLC-MS",
        "Description": "8321B ~ EPA-RCA . Nonvolatiles by HPLC-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10005\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3030",
        "Identifier": "8323",
        "Context": "HACH",
        "Name": "Fluoride, Electrode",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:20:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2266",
        "Identifier": "8325(CRT)",
        "Context": "USEPA",
        "Name": "8325 CRT  ~ Non-Volatile Compounds by HPLC\PB\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2267",
        "Identifier": "8325(DSK)",
        "Context": "USEPA",
        "Name": "8325 DSK  ~ Non-Volatile Compounds by HPLC\PB\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2268",
        "Identifier": "8325(LLE)",
        "Context": "USEPA",
        "Name": "8325 LLE  ~ Non-Volatile Compounds by HPLC\PB\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "824756",
        "Identifier": "8326",
        "Context": "HACH",
        "Name": "Aluminum, Eriochrome Cyanine R Method",
        "Description": "0.006 to 0.250 mg\L Al3+.  Scope and application: For water.  Adapted from Standard Methods for the Examination of Water and Wastewater. https:\\www.hach.com\asset-get.download-en.jsa?id=7639983676",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-04-26T09:40:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "795390",
        "Identifier": "8327",
        "Context": "USEPA",
        "Name": "Per-and Polyfluoroalkyl Substances (PFAS) Using External Standard Calibration and Multiple Reaction Monitoring (MRM) Liquid Chromatography\Tandem Mass Spectrometry (LC\MS\MS)",
        "Description": "https:\\www.epa.gov\hw-sw846\validated-test-method-8327-and-polyfluoroalkyl-substances-pfas-using-external-standard",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-07-15T14:37:37 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6229",
        "Identifier": "8330",
        "Context": "USEPA",
        "Name": "Explosives by HPLC",
        "Description": "Analyzes nitroaromatics and nitramines (explosive residues) in water and soil using High-Performance Liquid Chromatography.",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2269",
        "Identifier": "8330(S)",
        "Context": "USEPA",
        "Name": "8330 S  ~ Nitroaromatics and Nitramines by HPLC",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2270",
        "Identifier": "8330(W)",
        "Context": "USEPA",
        "Name": "8330 W  ~ Nitroaromatics and Nitramines by HPLC",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6102",
        "Identifier": "8330A",
        "Context": "USEPA",
        "Name": "NITROAROMATICS AND NITRAMINES ",
        "Description": "NITROAROMATICS AND NITRAMINES BY HIGH PERFORMANCE LIQUID CHROMATOGRAPHY (HPLC)",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\8330a.pdf",
        "LastChangeDate": "2026-03-13T19:43:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5046",
        "Identifier": "8330B",
        "Context": "USEPA",
        "Name": "8330 B ~ Explosives by HPLC",
        "Description": "8330B ~ EPA-RCA . Explosives by HPLC",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10006\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2271",
        "Identifier": "8331(S)",
        "Context": "USEPA",
        "Name": "8331 S  ~ Tetrazene in Soil by HPLC",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2272",
        "Identifier": "8331(W)",
        "Context": "USEPA",
        "Name": "8331 W  ~ Tetrazene in Water by HPLC",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2273",
        "Identifier": "8332",
        "Context": "USEPA",
        "Name": "Nitroglycerine by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "872",
        "Identifier": "8334",
        "Context": "HACH",
        "Name": "Free Chlorine in Water by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3031",
        "Identifier": "8368",
        "Context": "HACH",
        "Name": "Coliform Bacteria, Fecal MPN",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:20:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3032",
        "Identifier": "8375",
        "Context": "HACH",
        "Name": "Temperature, Thermometric",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:20:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770961",
        "Identifier": "841-B-11-003",
        "Context": "USEPA",
        "Name": "2012 National Lakes Assessment Field Operations Manual",
        "Description": "USEPA. 2011. 2012 National Lakes Assessment. Field Operations Manual. EPA 841-B-11-003. https:\\www.epa.gov\sites\production\files\2013-11\documents\nla2012_fieldoperationsmanual_120517_final_combinedqrg.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-10-07T09:36:23 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2274",
        "Identifier": "8410(A)",
        "Context": "USEPA",
        "Name": "8410 A  ~ Semivolatile Organics by GC\FTIR",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2275",
        "Identifier": "8410(BN)",
        "Context": "USEPA",
        "Name": "8410 BN  ~ Semivolatile Organics by GC\FTIR, B\N Extrct",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2276",
        "Identifier": "8430",
        "Context": "USEPA",
        "Name": "Bis(2-Chloroethyl)Ether Products by GC\FTIR",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2277",
        "Identifier": "8440",
        "Context": "USEPA",
        "Name": "TRPH by Infrared Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "873",
        "Identifier": "8506",
        "Context": "HACH",
        "Name": "Copper in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "874",
        "Identifier": "8507",
        "Context": "HACH",
        "Name": "Nitrite in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2278",
        "Identifier": "8515",
        "Context": "USEPA",
        "Name": "Colorimetric Method for TNT in Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2279",
        "Identifier": "8520",
        "Context": "USEPA",
        "Name": "Formaldehyde in Ambient Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "886",
        "Identifier": "88.01(S)",
        "Context": "NCASI",
        "Name": "88.01 S  ~ TCDD and TCDF by Mass Spectrometry",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "887",
        "Identifier": "88.01(W)",
        "Context": "NCASI",
        "Name": "88.01 W  ~ TCDD and TCDF by Mass Spectrometry",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4977",
        "Identifier": "8A (SOIL \ SEDIMENT)",
        "Context": "USEPA",
        "Name": "Chlorinated Biphenyls in Soil, Sediment, and Mixed Samples by HRGC\HRMS",
        "Description": "1668a (Soil \ Sediment) ~ EPA-OGWDW\TSC . Chlorinated Biphenyls in Soil, Sediment, and Mixed Samples by HRGC\HRMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7611\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2280",
        "Identifier": "9 (OPACITY)",
        "Context": "USEPA",
        "Name": "Opacity of Air Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2281",
        "Identifier": "9 (TRITIUM)",
        "Context": "USEPA",
        "Name": "Low Level Tritium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2282",
        "Identifier": "900***retired***use 900..0",
        "Context": "USEPA",
        "Name": "DO NOT USE***Gross Alpha and Beta Activity in Water",
        "Description": "DO NOT USE ~ 900 ~ EPA-NERL . Gross Alpha and Beta Activity in Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4730\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5885",
        "Identifier": "900.0",
        "Context": "USEPA",
        "Name": "Gross Alpha and Beta Activity in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:08 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2283",
        "Identifier": "900.1",
        "Context": "USEPA",
        "Name": "Radium in Drinking Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1146",
        "Identifier": "9000",
        "Context": "NIOSH",
        "Name": "Asbestos, Chrysotile by XRD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1147",
        "Identifier": "9002",
        "Context": "NIOSH",
        "Name": "Asbestos by KLP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2284",
        "Identifier": "901",
        "Context": "USEPA",
        "Name": "Radioactive Cesium in Drinking Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2285",
        "Identifier": "901.1",
        "Context": "USEPA",
        "Name": "Gamma Emitters in Drinking Water",
        "Description": "901.1 ~ EPA-NERL . Gamma Radionuclides Screening",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7391\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6230",
        "Identifier": "9010",
        "Context": "USEPA",
        "Name": "Total and Amenable Cyanide",
        "Description": "Uses distillation and colorimetry to measure cyanide species in aqueous and solid samples.",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6231",
        "Identifier": "9010A",
        "Context": "USEPA",
        "Name": "Total Cyanide (Rev A)",
        "Description": "Revision A of the cyanide distillation protocol.",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2286",
        "Identifier": "9010A(A)",
        "Context": "USEPA",
        "Name": "9010 A A  ~ Total and Amenable Cyanides by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2287",
        "Identifier": "9010A(B)",
        "Context": "USEPA",
        "Name": "9010 A B  ~ Total and Amenable Cyanides by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6103",
        "Identifier": "9010B",
        "Context": "USEPA",
        "Name": "CYANIDE, TOTAL AND AMENABLE - COLORIMETRIC, MANU",
        "Description": "Cyanide, Total and Amenable - Colorimetric, Manu",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-03\documents\testmeth.pdf",
        "LastChangeDate": "2026-03-13T19:43:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6104",
        "Identifier": "9010C",
        "Context": "USEPA",
        "Name": "CYANIDE, TOTAL AND AMENABLE - DISTILLATION",
        "Description": "Cyanide, Total and Amenable - distillation",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-03\documents\testmeth.pdf",
        "LastChangeDate": "2026-03-13T19:43:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2288",
        "Identifier": "9012",
        "Context": "USEPA",
        "Name": "Total and Amenable Cyanides",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2289",
        "Identifier": "9012A",
        "Context": "USEPA",
        "Name": "9012 A ~ Total and Amenable Cyanide (Auto UV)",
        "Description": "9012A ~ EPA-RCA . Cyanides, Total and Amenable (CN- Amenable) by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4731\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764756",
        "Identifier": "9012B",
        "Context": "USEPA",
        "Name": "Total and Amenable Cyanide (Automated Colorimetric, with Off-line Distillation)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-06-12T18:10:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2290",
        "Identifier": "9013",
        "Context": "USEPA",
        "Name": "Cyanide Extraction for Solids and Oils",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6105",
        "Identifier": "9013A",
        "Context": "USEPA",
        "Name": "CYANIDE EXTRACTION PROCEDURE FOR SOLIDS AND OILS",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\9013a.pdf",
        "LastChangeDate": "2026-03-13T19:43:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4607",
        "Identifier": "9014",
        "Context": "USEPA",
        "Name": "Titrimetric and manual Spectrophotometric Determinative methods for Cyanide",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-03-06T08:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "757111",
        "Identifier": "9016",
        "Context": "USEPA",
        "Name": "Free Cyanide in Water, Soils, and Solid Wastes by Microdiffusion",
        "Description": "https:\\www.epa.gov\hw-sw846\validated-test-method-9016-free-cyanide-water-soils-and-solid-wastes-microdiffusion",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-05-15T11:02:04 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2291",
        "Identifier": "902",
        "Context": "USEPA",
        "Name": "Radioactive Iodine in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6232",
        "Identifier": "9020",
        "Context": "USEPA",
        "Name": "Total Organic Halides (TOX)",
        "Description": "Measures the total concentration of organic halides in water by carbon adsorption and titration.",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2292",
        "Identifier": "9020B",
        "Context": "USEPA",
        "Name": "9020 B ~ Total Organic Halides by Coulometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2293",
        "Identifier": "9021",
        "Context": "USEPA",
        "Name": "Purgeable Organic Halides in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2294",
        "Identifier": "9022",
        "Context": "USEPA",
        "Name": "Total Oganic Halides, Neutron Activation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2295",
        "Identifier": "9023",
        "Context": "USEPA",
        "Name": "Extractable Organic Halides in Solids",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2296",
        "Identifier": "903***retired***use 903..0",
        "Context": "USEPA",
        "Name": "DO NOT USE***Radium in Drinking Water",
        "Description": "DO NOT USE ~ 903 ~ EPA-ORD \ EPA-OST . Alpha-Emitting Radium Isotopes in Drinking Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9183\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5743",
        "Identifier": "903.0",
        "Context": "USEPA",
        "Name": "Radium-226 in Drinking Water",
        "Description": "903 ~ EPA-ORD \ EPA-OST . Alpha-Emitting Radium Isotopes in Drinking Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2297",
        "Identifier": "903.1",
        "Context": "USEPA",
        "Name": "Radium-226 in Drinking Water",
        "Description": "903.1 ~ EPA-NERL . Radium-226 in Drinking Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4732\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2298",
        "Identifier": "9030A",
        "Context": "USEPA",
        "Name": "9030 A ~ Acid Soluble and Acid Insoluble Sulfides",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6051",
        "Identifier": "9030B",
        "Context": "USEPA",
        "Name": "9030-B ~ USEPA, Acid Soluble and Acid Insoluble Sulfides: Distillation",
        "Description": "The distillation procedure described in this method is designed for the determination;  of sulfides in aqueous, solid waste materials, or effluents. https:\\www.epa.gov\sites\default\files\2015-12\documents\9030b.pdf",
        "QualifierType": "...",
        "URL": "",
        "LastChangeDate": "2024-06-27T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2299",
        "Identifier": "9031",
        "Context": "USEPA",
        "Name": "Extractable Sulfides by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "741488",
        "Identifier": "9034",
        "Context": "USEPA",
        "Name": "Sulfide, Acid Soluble and Insoluble (Titrimetric)",
        "Description": "https:\\www.epa.gov\hw-sw846\sw-846-test-method-9034-titrimetric-procedure-acid-soluble-and-acid-insoluble-sulfides",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-09-26T08:05:41 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2300",
        "Identifier": "9035",
        "Context": "USEPA",
        "Name": "Sulfate by Automated Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2301",
        "Identifier": "9036",
        "Context": "USEPA",
        "Name": "Sulfate by Automated Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2302",
        "Identifier": "9038",
        "Context": "USEPA",
        "Name": "Sulfate by Turbidimetric Determination",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2303",
        "Identifier": "904.0",
        "Context": "USEPA",
        "Name": "Radium-228 in Drinking Water: Determination of radium-228 in drinking water",
        "Description": "904 ~ EPA-ORD \ EPA-OST . Radium Isotopes radium-228 in Drinking Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6233",
        "Identifier": "9040",
        "Context": "USEPA",
        "Name": "pH Electrometric Measurement",
        "Description": "Standard procedure for determining the pH of aqueous samples using a pH meter and glass electrode.",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2304",
        "Identifier": "9040A",
        "Context": "USEPA",
        "Name": "9040 A ~ pH in Water by Electrometric Measurement",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5047",
        "Identifier": "9040B",
        "Context": "USEPA",
        "Name": "9040 B ~ pH in Water by Electrometric Measurement",
        "Description": "9040 B ~ EPA-RCA . pH in Water by Electrometric Measurement",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4733\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5544",
        "Identifier": "9040C",
        "Context": "USEPA",
        "Name": "9040C ~ pH in Water by Electrometric Measurement",
        "Description": "https:\\www.epa.gov\sites\production\files\2015-12\documents\9040c.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-04-29T07:46:15 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2305",
        "Identifier": "9041A",
        "Context": "USEPA",
        "Name": "9041 A ~ pH using Paper",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2306",
        "Identifier": "9045B",
        "Context": "USEPA",
        "Name": "9045 B ~ Soil and Waste pH",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "763128",
        "Identifier": "9045C",
        "Context": "USEPA",
        "Name": "9045 C ~ pH by Electrometric Measurement",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-10-31T13:34:26 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5547",
        "Identifier": "9045D",
        "Context": "USEPA",
        "Name": "9045 D ~ Soil and Waste pH, part of Test Methods for Evaluating Solid ",
        "Description": "https:\\www.epa.gov\sites\production\files\2015-12\documents\9045d.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-04-29T07:49:28 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2307",
        "Identifier": "905***retired***use 905..0",
        "Context": "USEPA",
        "Name": "DO NOT USE***Radioactive Strontium in Water",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5331",
        "Identifier": "905-R-05-001",
        "Context": "USEPA",
        "Name": "Standard Operating Procedure for Total Phosphorous in Sediments by Persulfate Oxidation Digestion (Lachat Method)",
        "Description": "http:\\www.epa.gov\greatlakes\monitoring\sop\chapter_6\LG600.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-01-13T10:18:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5886",
        "Identifier": "905.0",
        "Context": "USEPA",
        "Name": "Radioactive Strontium in Drinking Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:08 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2308",
        "Identifier": "9050",
        "Context": "USEPA",
        "Name": "Specific Conductance",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2309",
        "Identifier": "9050A",
        "Context": "USEPA",
        "Name": "9050 A ~ Specific Conductance",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2310",
        "Identifier": "9056",
        "Context": "USEPA",
        "Name": "Anion Chromatography Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5048",
        "Identifier": "9056A",
        "Context": "USEPA",
        "Name": "9056 A ~ Anion Chromatography Method",
        "Description": "9056A ~ EPA-RCA . Anion Chromatography Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4734\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2311",
        "Identifier": "9057",
        "Context": "USEPA",
        "Name": "Impinger Solutions for Cl- by ICP",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2312",
        "Identifier": "906",
        "Context": "USEPA",
        "Name": "Tritium in Drinking Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2313",
        "Identifier": "9060",
        "Context": "USEPA",
        "Name": "Total Organic Carbon in Water and Waste",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5049",
        "Identifier": "9060A",
        "Context": "USEPA",
        "Name": "9060 A ~ Total Organic Carbon in water and wastes by Carbonaceous Analyzer",
        "Description": "9060A ~ EPA-RCA . Total Organic Carbon in water and wastes by Carbonaceous Analyzer",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9348\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2314",
        "Identifier": "9060AM",
        "Context": "USEPA",
        "Name": "9060 AM ~ Total Volatile Organic Carbon",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2315",
        "Identifier": "9065",
        "Context": "USEPA",
        "Name": "Total Phenolics by Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2316",
        "Identifier": "9066",
        "Context": "USEPA",
        "Name": "Total Phenolics by Automated Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2317",
        "Identifier": "9067",
        "Context": "USEPA",
        "Name": "Total Phenolics by Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2318",
        "Identifier": "907",
        "Context": "USEPA",
        "Name": "Actinides in Drinking Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2319",
        "Identifier": "9070",
        "Context": "USEPA",
        "Name": "Total Recoverable Oil and Grease",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6106",
        "Identifier": "9070A",
        "Context": "USEPA",
        "Name": "N-HEXANE EXTRACTABLE MATERIAL (HEM) FOR AQUEOUS SAMPLES",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-12\documents\method_9070a_0.pdf",
        "LastChangeDate": "2026-03-13T19:43:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2320",
        "Identifier": "9071A",
        "Context": "USEPA",
        "Name": "9071 A ~ Oil and Grease in Sludge and Sediment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5549",
        "Identifier": "9071B",
        "Context": "USEPA",
        "Name": "9071 B ~ Oil and Grease by n-Hexane Extraction",
        "Description": "https:\\www.epa.gov\sites\production\files\2015-12\documents\9071b.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-05-09T11:36:35 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2321",
        "Identifier": "9075",
        "Context": "USEPA",
        "Name": "Total Chlorine in Petroleum Products",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2322",
        "Identifier": "9076",
        "Context": "USEPA",
        "Name": "Total Chlorine in Petroleum Products",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2323",
        "Identifier": "9077(A)",
        "Context": "USEPA",
        "Name": "9077 A  ~ Total Chlorine in Petroleum Products",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2324",
        "Identifier": "9077(B)",
        "Context": "USEPA",
        "Name": "9077 B  ~ Total Chlorine in Petroleum Products",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2325",
        "Identifier": "9077(C)",
        "Context": "USEPA",
        "Name": "9077 C  ~ Total Chlorine in Petroleum Products",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2326",
        "Identifier": "9078",
        "Context": "USEPA",
        "Name": "Screening for PCBs in Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2327",
        "Identifier": "9079",
        "Context": "USEPA",
        "Name": "Screening for PCBs in Transformer Oil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2328",
        "Identifier": "908***retired***use 908..0",
        "Context": "USEPA",
        "Name": "DO NOT USE***Uranium in Drinking Water",
        "Description": "DO NOT USE ~ 908 ~ EPA-ORD \ EPA-OST . Uranium in Drinking Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9184\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5744",
        "Identifier": "908.0",
        "Context": "USEPA",
        "Name": "Uranium in Drinking Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2329",
        "Identifier": "908.1",
        "Context": "USEPA",
        "Name": "Uranium in Drinking Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2330",
        "Identifier": "9080",
        "Context": "USEPA",
        "Name": "Cation-Exchange Capacity of Soils",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2331",
        "Identifier": "9081",
        "Context": "USEPA",
        "Name": "Cation-Exchange Capacity of Soils",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "606209",
        "Identifier": "909.0",
        "Context": "USEPA",
        "Name": "909.0 ~ EPA; Determination of Lead-210 in Drinking Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2011-12-07T12:58:28 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "121745",
        "Identifier": "909.0M",
        "Context": "USEPA",
        "Name": "909.0M ~ Prescribed Procedures for Measurement of Radioactivity in Drinking Water (EPA600-4-80-032)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2011-03-25T12:15:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "797247",
        "Identifier": "9095B",
        "Context": "USEPA",
        "Name": "Paint Filter Liquids Test",
        "Description": "https:\\www.epa.gov\sites\production\files\2015-12\documents\9095b_0.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-08-18T15:25:04 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1",
        "Identifier": "911.03",
        "Context": "AOAC",
        "Name": "Strontium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-03-01T21:57:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "606206",
        "Identifier": "912.0",
        "Context": "USEPA",
        "Name": "912.0 ~ EPA; Determination of Polonium-210 in Drinking Water by Alpha Particle Counting",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2011-12-07T12:44:14 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6070",
        "Identifier": "913.0",
        "Context": "USEPA",
        "Name": "913.0 ~ USEPA; Radon in Drinking Water by Liquid Scintillation Counting",
        "Description": "https:\\nepis.epa.gov\Exe\ZyPURL.cgi?Dockey=91021ESM.txt",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-02-04T06:54:01 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2332",
        "Identifier": "9131",
        "Context": "USEPA",
        "Name": "Total Coliform by Multiple Tube Fermentation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2333",
        "Identifier": "9132",
        "Context": "USEPA",
        "Name": "Total Coliform by Membrane Filter",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2",
        "Identifier": "920.13",
        "Context": "AOAC",
        "Name": "Inorganic and Organometallic Pesticides",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3",
        "Identifier": "920.193(A)",
        "Context": "AOAC",
        "Name": "920.193 A  ~ Total Solids in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4",
        "Identifier": "920.193(B)",
        "Context": "AOAC",
        "Name": "920.193 B  ~ Solids in Solution in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5",
        "Identifier": "920.193(C)",
        "Context": "AOAC",
        "Name": "920.193 C  ~ Solids in Water by Ignition",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6",
        "Identifier": "920.194",
        "Context": "AOAC",
        "Name": "Carbonate and Bicarbonate in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "7",
        "Identifier": "920.195",
        "Context": "AOAC",
        "Name": "Silica in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "8",
        "Identifier": "920.196",
        "Context": "AOAC",
        "Name": "Aluminum and Iron in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "9",
        "Identifier": "920.197(A)",
        "Context": "AOAC",
        "Name": "920.197 A  ~ Iron in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "10",
        "Identifier": "920.197(B)",
        "Context": "AOAC",
        "Name": "920.197 B  ~ Iron in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "11",
        "Identifier": "920.198",
        "Context": "AOAC",
        "Name": "Aluminum in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "12",
        "Identifier": "920.199",
        "Context": "AOAC",
        "Name": "Calcium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "13",
        "Identifier": "920.2",
        "Context": "AOAC",
        "Name": "Magnesium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "14",
        "Identifier": "920.201",
        "Context": "AOAC",
        "Name": "Barium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "15",
        "Identifier": "920.202",
        "Context": "AOAC",
        "Name": "Mn, I, Br, As and Boric Acid in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "16",
        "Identifier": "920.203",
        "Context": "AOAC",
        "Name": "Manganese in Water",
        "Description": "920.203 ~ AOAC . Manganese in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4735\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "17",
        "Identifier": "920.204",
        "Context": "AOAC",
        "Name": "Bromide and Iodide in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "18",
        "Identifier": "920.205",
        "Context": "AOAC",
        "Name": "Arsenic in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2334",
        "Identifier": "9200",
        "Context": "USEPA",
        "Name": "Nitrate in Water by Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2335",
        "Identifier": "9200A",
        "Context": "USEPA",
        "Name": "9200 A ~ Nitrate in Water by Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2336",
        "Identifier": "9210",
        "Context": "USEPA",
        "Name": "Nitrate in Water by ISE",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2337",
        "Identifier": "9211",
        "Context": "USEPA",
        "Name": "Bromide in Water by ISE",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5674",
        "Identifier": "9211C",
        "Context": "APHA",
        "Name": "Rapid Determination of Bacteria in Drinking Water Using an ATP Assay",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:54 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2338",
        "Identifier": "9212",
        "Context": "USEPA",
        "Name": "Chloride in Water by ISE",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2339",
        "Identifier": "9213",
        "Context": "USEPA",
        "Name": "Cyanide in Water by ISE",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3033",
        "Identifier": "9213-D***retired*** 9213D",
        "Context": "APHA",
        "Name": "DO NOT USE***9213 D ~ E. coli method",
        "Description": "DO NOT USE ~ 9213D ~ Standard Methods . E. coli by Membrane filtration plating on mTEC agar",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5573\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4659",
        "Identifier": "9213B",
        "Context": "APHA",
        "Name": "9213 B ~ Staphylococcus aureus in water by Tube Culture",
        "Description": "9213B ~ Standard Methods . Staphylococcus aureus in water by Tube Culture",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9669\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3185",
        "Identifier": "9213D",
        "Context": "APHA",
        "Name": "9213 D ~ E. coli by Membrane filtration plating on mTEC agar",
        "Description": "9213D ~ Standard Methods . E. coli by Membrane filtration plating on mTEC agar",
        "QualifierType": "DATA",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5573\",
        "LastChangeDate": "2010-01-15T14:04:05 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2340",
        "Identifier": "9214",
        "Context": "USEPA",
        "Name": "Fluoride in Water by ISE",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2341",
        "Identifier": "9215",
        "Context": "USEPA",
        "Name": "Sulfide in Water by ISE",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "494",
        "Identifier": "9215-B",
        "Context": "APHA",
        "Name": "9215 B ~ Heterotrophic Plate Count- Pour Plate Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "495",
        "Identifier": "9215-C",
        "Context": "APHA",
        "Name": "9215 C ~ Heterotrophic Plate Count- Spread Plate Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "496",
        "Identifier": "9215-D",
        "Context": "APHA",
        "Name": "9215 D ~ Heterotrophic Plate Count- Membrane Filter Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "497",
        "Identifier": "9216-B",
        "Context": "APHA",
        "Name": "9216 B ~ Direct Total Microbial Count- Epifluorescence Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "498",
        "Identifier": "9221-B",
        "Context": "APHA",
        "Name": "9221 B ~ Standard Total Coliform- Fermentation Technique",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5289",
        "Identifier": "9221-B",
        "Context": "APHA_SM19ED",
        "Name": "9221 B ~ Standard Total Coliform Fermentation Technique",
        "Description": "Standard Methods (19th ed.) 9221-B (Multiple-Tube Fermentation Technique) MPN",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-12-09T07:55:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3034",
        "Identifier": "9221-B.1",
        "Context": "APHA",
        "Name": "9221 B.1 ~ Escherichia coli Fermentation Technique, Multi-tube Fermentation Technique",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:20:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "499",
        "Identifier": "9221-C",
        "Context": "APHA",
        "Name": "9221 C ~ Multiple-Tube Fermentation for Coliform",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "500",
        "Identifier": "9221-D",
        "Context": "APHA",
        "Name": "9221 D ~ Estimation of Bacterial Density- MPN Determination",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "501",
        "Identifier": "9221-E",
        "Context": "APHA",
        "Name": "9221 E ~ Fecal Coliform Procedure- Multiple-Tube Procedure",
        "Description": "9221E ~ Standard Methods . Fecal coliforms by Multiple tube fermentation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5588\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5288",
        "Identifier": "9221-E",
        "Context": "APHA_SM19ED",
        "Name": "9221 E ~ Fecal Coliform Procedure",
        "Description": "Standard Methods (19th ed.) 9221-E (Multiple-Tube Fermentation Technique) MPN ",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-12-09T07:55:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3072",
        "Identifier": "9221-E.1",
        "Context": "APHA",
        "Name": "9221 E.1 ~ Fecal Coliform Procedure-Multiple-Tube Proc using EC medium and prior enrichment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-11-05T11:17:22 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3073",
        "Identifier": "9221-E.2",
        "Context": "APHA",
        "Name": "9221 E.2 ~ Fecal Coliform Procedure-Multiple-Tube Proc using A-1 medium without prior enrichment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-11-05T11:17:22 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3035",
        "Identifier": "9221-F",
        "Context": "APHA",
        "Name": "9221 F ~ Escherichia coli, Multi-tube Fermentation Technique",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:20:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4660",
        "Identifier": "9221A,B,C,F",
        "Context": "APHA",
        "Name": "9221 A,B,C,F ~ Coliform bacteria by Multiple-tube test using lauryl-tryptose and EC-MUG broth",
        "Description": "9221A,B,C,F ~ Standard Methods . Coliform bacteria by Multiple-tube test using lauryl-tryptose and EC-MUG broth",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5582\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5675",
        "Identifier": "9221A-B-C-F***retired***9221A,B,C,F",
        "Context": "APHA",
        "Name": "DO NOT USE***9221 A,B,C,F ~ Coliform bacteria by Multiple-tube test using lauryl-tryptose and EC-MUG broth",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6251",
        "Identifier": "9222",
        "Context": "APHA",
        "Name": "Total Coliforms and E. coli in water",
        "Description": "A membrane filtration method (as well as a partition method for E. coli) where the analytical process requires that all filtration series begin with membrane filtration equipment that has been sterilized by autoclaving",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-04-17T20:27:27 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3036",
        "Identifier": "9222-(B+B.5c)",
        "Context": "APHA",
        "Name": "9222- B+B.5c  ~ Total Coliform Fermentation Technique, Multi-tube Fermentation with Enrichment Technique",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-02-20T13:20:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "505",
        "Identifier": "9222-E",
        "Context": "APHA",
        "Name": "9222 E ~ Fecal Coliform- Delayed-Incubation Procedure",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "506",
        "Identifier": "9222-F",
        "Context": "APHA",
        "Name": "9222 F ~ Klebsiella- Membrane Filter Procedure",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3186",
        "Identifier": "9222A",
        "Context": "APHA",
        "Name": "9222 A ~ Membrane Filter Technique for Members of the Coliform Group",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2010-01-15T14:04:05 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4661",
        "Identifier": "9222A,B,C",
        "Context": "APHA",
        "Name": "9222 A,B,C ~ Coliforms, total, by Membrane Filtration (MF) Plating",
        "Description": "9222A,B,C ~ Standard Methods . Coliforms, total, by Membrane Filtration (MF) Plating",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5580\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3187",
        "Identifier": "9222B",
        "Context": "APHA",
        "Name": "9222 B ~ Standard Total Coliform Membrane Filter Procedure",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2010-01-15T14:04:05 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4662",
        "Identifier": "9222B,G",
        "Context": "APHA",
        "Name": "9222 B,G ~ Membrane filtration plating of E. coli with MUG-fluorescent detection",
        "Description": "9222B,G ~ Standard Methods . Membrane filtration plating of E. coli with MUG-fluorescent detection",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5581\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5676",
        "Identifier": "9222B_RETIRED",
        "Context": "APHA",
        "Name": "9222B_RETIRED",
        "Description": "G\"",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3188",
        "Identifier": "9222C",
        "Context": "APHA",
        "Name": "9222 C ~ Delayed Incubation Total Coliform Procedure",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2010-01-15T14:04:05 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5293",
        "Identifier": "9222D",
        "Context": "APHA_SM22ED",
        "Name": "9222 D ~ Membrane filtration test for fecal coliforms",
        "Description": "9222 D",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5587\",
        "LastChangeDate": "2014-12-16T09:04:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3190",
        "Identifier": "9222D",
        "Context": "APHA",
        "Name": "9222 D ~ Membrane filtration test for fecal coliforms",
        "Description": "9222D ~ Standard Methods . Membrane filtration test for fecal coliforms",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5587\",
        "LastChangeDate": "2014-03-11T15:57:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3189",
        "Identifier": "9222G",
        "Context": "APHA",
        "Name": "9222 G ~ Membrane filtration plating of E. coli with MUG-fluorescent detection",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2010-01-15T14:04:05 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743234",
        "Identifier": "9223",
        "Context": "APHA",
        "Name": "Chromogenic Substrate Coliform Test",
        "Description": "Standard Methods for the Examination of Water and Wastewater 18th Edition 1992. https:\\law.resource.org\pub\us\cfr\ibr\002\apha.method.9223.1992.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-01-10T13:08:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5300",
        "Identifier": "9223-B",
        "Context": "APHA_SM22ED",
        "Name": "9223 B ~ Enzyme Substrate Test",
        "Description": "Enzyme Substrate Test – URL: https:\\www.nemi.gov\methods\method_summary\5583\ or http:\\standardmethods.org",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5583",
        "LastChangeDate": "2014-12-19T08:49:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "507",
        "Identifier": "9223-B",
        "Context": "APHA",
        "Name": "9223 B ~ Enzyme substrate assay for measuring total coliforms and E. coli (ONPG-MUG test or CPRG-MUG test)",
        "Description": "9223B ~ Standard Methods . Enzyme substrate assay for measuring total coliforms and E. coli (ONPG-MUG test or CPRG-MUG test)",
        "QualifierType": "DATA",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5583\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "810609",
        "Identifier": "9223-B-04",
        "Context": "APHA",
        "Name": "9223 B 04 ~Enzyme Substrate Test",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-11-04T11:14:31 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5677",
        "Identifier": "9223B***retired*** 9223-B",
        "Context": "APHA",
        "Name": "DO NOT USE***9223 B ~ Enzyme substrate assay for measuring total coliforms and E. coli (ONPG-MUG test or CPRG-MUG test)",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "508",
        "Identifier": "9230-B",
        "Context": "APHA",
        "Name": "9230 B ~ Fecal Streptococcus and Enterococcus Groups, Multiple Tube Technique",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "509",
        "Identifier": "9230-C",
        "Context": "APHA",
        "Name": "9230 C ~ Fecal Streptococcus and Enterococcus Groups, Membrane Filter Techniques",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5256",
        "Identifier": "9230-D",
        "Context": "APHA",
        "Name": "9230 D ~ Fluorogenic Substrate Enterococcus Test",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-03-05T13:44:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "510",
        "Identifier": "9240-B",
        "Context": "APHA",
        "Name": "9240 B ~ Enumberation-Enrichment & Isolation of Iron and Sulfur Bacteria",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "20",
        "Identifier": "925.54",
        "Context": "AOAC",
        "Name": "Sulfate in Water",
        "Description": "925.54 ~ AOAC . Sulfate in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4736\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2342",
        "Identifier": "9250",
        "Context": "USEPA",
        "Name": "Chloride by Automated Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "511",
        "Identifier": "9250-B",
        "Context": "APHA",
        "Name": "9250 B ~ Actinomycete Plate Count",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2343",
        "Identifier": "9251",
        "Context": "USEPA",
        "Name": "Chloride by Automated Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2344",
        "Identifier": "9252A",
        "Context": "USEPA",
        "Name": "9252 A ~ Chloride in Water and Waste by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2345",
        "Identifier": "9253",
        "Context": "USEPA",
        "Name": "Chloride in Water and Waste by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4663",
        "Identifier": "9260 I",
        "Context": "APHA",
        "Name": "9260 I ~ Leptospira spp. in water by Tube Culture",
        "Description": "9260I \ 9260 I ~ Standard Methods . Leptospira spp. in water by Tube Culture",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9670\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2346",
        "Identifier": "9310",
        "Context": "USEPA",
        "Name": "Gross Alpha and Beta",
        "Description": "9310 ~ EPA-RCA . Gross Alpha and Beta Determination",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4737\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2347",
        "Identifier": "9315",
        "Context": "USEPA",
        "Name": "Alpha Emitting Radium Isotopes in Water",
        "Description": "9315 ~ EPA-RCA . Alpha-emitting radium isotopes in water by Alpha Scintillation or AGPC",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9344\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2348",
        "Identifier": "9320",
        "Context": "USEPA",
        "Name": "Radium-228",
        "Description": "9320 ~ EPA-RCA . Radium-228 in groundwater",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9345\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "21",
        "Identifier": "939.11",
        "Context": "AOAC",
        "Name": "Fluoride in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "22",
        "Identifier": "949.09",
        "Context": "AOAC",
        "Name": "Monofluoroacetic Acid Pesticide Residues",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "23",
        "Identifier": "949.1",
        "Context": "AOAC",
        "Name": "Monofluoroacetic Acid Pesticide Residues",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "24",
        "Identifier": "949.12",
        "Context": "AOAC",
        "Name": "Microchemical Deter. of Carbon and Hydrogen",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "512",
        "Identifier": "9510-G",
        "Context": "APHA",
        "Name": "9510 G ~ Assay and Identification of Viruses in Sample Concentrates",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "25",
        "Identifier": "952.24",
        "Context": "AOAC",
        "Name": "Microchemical Determination of Br, Cl, or I",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "26",
        "Identifier": "952.25",
        "Context": "AOAC",
        "Name": "Microchemical Determination of Sulfur",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "27",
        "Identifier": "955.48",
        "Context": "AOAC",
        "Name": "Microchemical Determination of Sulfur",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "28",
        "Identifier": "956.07",
        "Context": "AOAC",
        "Name": "Microchemical Determination of Alkoxyl Group",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "885",
        "Identifier": "9562",
        "Context": "ISO",
        "Name": "Adsorbable Organic Halogens",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "29",
        "Identifier": "957.14",
        "Context": "AOAC",
        "Name": "Captan Pesticide Residues",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "30",
        "Identifier": "957.18",
        "Context": "AOAC",
        "Name": "Microchemical Determination of Phosphorus",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "31",
        "Identifier": "960.1",
        "Context": "AOAC",
        "Name": "Herbicides (Ester Forms)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "32",
        "Identifier": "960.14(A)",
        "Context": "AOAC",
        "Name": "960.14 A  ~ Quaternary Ammonium Compounds",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "33",
        "Identifier": "960.14(B)",
        "Context": "AOAC",
        "Name": "960.14 B  ~ Quaternary Ammonium Compounds",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "34",
        "Identifier": "960.43",
        "Context": "AOAC",
        "Name": "Piperonyl Butoxide Residues",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "35",
        "Identifier": "960.52",
        "Context": "AOAC",
        "Name": "Microchemical Determination of Nitrogen",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "36",
        "Identifier": "961.16",
        "Context": "AOAC",
        "Name": "Microchemical Determination of Fluorine",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "37",
        "Identifier": "963.23",
        "Context": "AOAC",
        "Name": "Glyodin Pesticide Residues",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "38",
        "Identifier": "963.24",
        "Context": "AOAC",
        "Name": "Maleic Hydrazide Pesticide Residues",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "39",
        "Identifier": "963.29",
        "Context": "AOAC",
        "Name": "Microchemical Determination of Oxygen",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "40",
        "Identifier": "964.18",
        "Context": "AOAC",
        "Name": "Carbaryl Pesticide Residue - Colorimetric",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "41",
        "Identifier": "964.19",
        "Context": "AOAC",
        "Name": "Dodine Pesticide Residues",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "42",
        "Identifier": "964.2",
        "Context": "AOAC",
        "Name": "Nicotine Residues",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "43",
        "Identifier": "965.36",
        "Context": "AOAC",
        "Name": "Dichlone Pesticide Residues",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "44",
        "Identifier": "967.25",
        "Context": "AOAC",
        "Name": "Salmonella in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "45",
        "Identifier": "967.26",
        "Context": "AOAC",
        "Name": "Salmonella in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "46",
        "Identifier": "967.27",
        "Context": "AOAC",
        "Name": "Salmonella in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "47",
        "Identifier": "967.28",
        "Context": "AOAC",
        "Name": "Salmonella in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "48",
        "Identifier": "968.24",
        "Context": "AOAC",
        "Name": "Organo Pesticide Residue - Sweep Codist.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "49",
        "Identifier": "968.25",
        "Context": "AOAC",
        "Name": "Biphenyl Pesticide Residues in Citrus",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "50",
        "Identifier": "968.26",
        "Context": "AOAC",
        "Name": "Carbaryl Pesticide Residue - Qualitative",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "51",
        "Identifier": "969.48",
        "Context": "AOAC",
        "Name": "Tritium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "52",
        "Identifier": "970.52",
        "Context": "AOAC",
        "Name": "Organo Pesticide Residues - Multiresidue",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "53",
        "Identifier": "970.53",
        "Context": "AOAC",
        "Name": "Organophos. Pesticide Residues - Sweep Osc.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "54",
        "Identifier": "970.54",
        "Context": "AOAC",
        "Name": "Naphthyleneacetic Pesticide Residues",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "513",
        "Identifier": "9711-B",
        "Context": "APHA",
        "Name": "9711 B ~ Immunofluorescence Method for Giarda & Crytosporidium",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "514",
        "Identifier": "9711-C",
        "Context": "APHA",
        "Name": "9711 C ~ Protozoa: Entamoeba histolytica in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "55",
        "Identifier": "972.05",
        "Context": "AOAC",
        "Name": "Organochlorine Pesticide Contamination",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "56",
        "Identifier": "972.23",
        "Context": "AOAC",
        "Name": "Lead in Fish",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "57",
        "Identifier": "972.24",
        "Context": "AOAC",
        "Name": "Lead in Fish",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "58",
        "Identifier": "972.29",
        "Context": "AOAC",
        "Name": "Thiram Pesticide Residues",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "59",
        "Identifier": "972.43",
        "Context": "AOAC",
        "Name": "Microchemical Deter. of Carbon, H and N",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "60",
        "Identifier": "973.39",
        "Context": "AOAC",
        "Name": "Ethylan Pesticide Residues - GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "61",
        "Identifier": "973.4",
        "Context": "AOAC",
        "Name": "Specific Conductance of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "62",
        "Identifier": "973.41",
        "Context": "AOAC",
        "Name": "pH of Water",
        "Description": "973.41 ~ AOAC . pH of Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4738\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "63",
        "Identifier": "973.42",
        "Context": "AOAC",
        "Name": "Acidity of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "64",
        "Identifier": "973.43",
        "Context": "AOAC",
        "Name": "Alkalinity of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "65",
        "Identifier": "973.44",
        "Context": "AOAC",
        "Name": "Biochemical Oxygen Demand of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "66",
        "Identifier": "973.45",
        "Context": "AOAC",
        "Name": "Oxygen (Dissolved) in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "67",
        "Identifier": "973.46(E)",
        "Context": "AOAC",
        "Name": "973.46 E  ~ Chemical Oxygen Demand of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "68",
        "Identifier": "973.46(F)",
        "Context": "AOAC",
        "Name": "973.46 F  ~ Chemical Oxygen Demand of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "69",
        "Identifier": "973.46(G)",
        "Context": "AOAC",
        "Name": "973.46 G  ~ Chemical Oxygen Demand of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "70",
        "Identifier": "973.47",
        "Context": "AOAC",
        "Name": "Organic Carbon in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "71",
        "Identifier": "973.48",
        "Context": "AOAC",
        "Name": "Total Nitrogen in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "72",
        "Identifier": "973.49(E)",
        "Context": "AOAC",
        "Name": "973.49 E  ~ Nitrogen (Ammonia) in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "73",
        "Identifier": "973.49(F)",
        "Context": "AOAC",
        "Name": "973.49 F  ~ Nitrogen (Ammonia) in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "74",
        "Identifier": "973.5",
        "Context": "AOAC",
        "Name": "Nitrogen (Nitrate) in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "75",
        "Identifier": "973.51",
        "Context": "AOAC",
        "Name": "Chloride in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "76",
        "Identifier": "973.52",
        "Context": "AOAC",
        "Name": "Hardness of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4610",
        "Identifier": "973.52B",
        "Context": "AOAC",
        "Name": "973.52 B ~ Hardness of Water",
        "Description": "973.52B ~ AOAC . Hardness of Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4739\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "77",
        "Identifier": "973.53",
        "Context": "AOAC",
        "Name": "Potassium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "78",
        "Identifier": "973.54",
        "Context": "AOAC",
        "Name": "Sodium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "79",
        "Identifier": "973.55",
        "Context": "AOAC",
        "Name": "Phosphorus in Water - Photometric",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "80",
        "Identifier": "973.56",
        "Context": "AOAC",
        "Name": "Phosphorus in Water - Automated",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "81",
        "Identifier": "973.57",
        "Context": "AOAC",
        "Name": "Sulfate in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "82",
        "Identifier": "973.66",
        "Context": "AOAC",
        "Name": "Strontium-90 in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "83",
        "Identifier": "973.67",
        "Context": "AOAC",
        "Name": "Iodine-131, Ba-140 and Cs-137 in Milk",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "84",
        "Identifier": "974.14",
        "Context": "AOAC",
        "Name": "Mercury in Fish",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "85",
        "Identifier": "974.22",
        "Context": "AOAC",
        "Name": "Organo Pesticide Residue - Carbon Column",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "86",
        "Identifier": "974.27",
        "Context": "AOAC",
        "Name": "Cd, Cr, Cu, Fe, Pb, Mg, Mn, Ag, Zn in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "87",
        "Identifier": "974.36",
        "Context": "AOAC",
        "Name": "Microchemical Determination of Br, Cl, or I",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "88",
        "Identifier": "974.37",
        "Context": "AOAC",
        "Name": "Strontium-89 and -90 in Milk",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "89",
        "Identifier": "974.38",
        "Context": "AOAC",
        "Name": "Clostridium perfringens in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "90",
        "Identifier": "975.4",
        "Context": "AOAC",
        "Name": "N-Methylcarbamate Insecticide Residues",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "91",
        "Identifier": "975.53",
        "Context": "AOAC",
        "Name": "Microchemical Determination of Sulfur",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "92",
        "Identifier": "975.54",
        "Context": "AOAC",
        "Name": "Salmonella in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "93",
        "Identifier": "975.55",
        "Context": "AOAC",
        "Name": "Staphylococcus aureus in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "94",
        "Identifier": "975.56",
        "Context": "AOAC",
        "Name": "Virus in Beef (Ground)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "95",
        "Identifier": "976.23",
        "Context": "AOAC",
        "Name": "Endosulfan\Tetrasul Pesticide Residues",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "96",
        "Identifier": "976.29",
        "Context": "AOAC",
        "Name": "Microchemical Determination of Sulfur",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "97",
        "Identifier": "976.3",
        "Context": "AOAC",
        "Name": "Clostridium perfringens in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "98",
        "Identifier": "976.31",
        "Context": "AOAC",
        "Name": "Staphylococcal Enterotoxin in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "99",
        "Identifier": "977.06",
        "Context": "AOAC",
        "Name": "Chlorotoluron, Chloroxuron, or Metoxuron",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "100",
        "Identifier": "977.15",
        "Context": "AOAC",
        "Name": "Mercury in Fish",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "101",
        "Identifier": "977.19",
        "Context": "AOAC",
        "Name": "Hexachlorobenzene\Mirex Residues in Fat",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "102",
        "Identifier": "977.22",
        "Context": "AOAC",
        "Name": "Mercury in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "103",
        "Identifier": "977.26",
        "Context": "AOAC",
        "Name": "Clostridium botulinum and Toxins in Food",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "104",
        "Identifier": "978.16",
        "Context": "AOAC",
        "Name": "Ethylenethiourea Pesticide Residues - GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "105",
        "Identifier": "978.23",
        "Context": "AOAC",
        "Name": "Fecal Coliforms in Shellfish Waters",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "106",
        "Identifier": "978.24",
        "Context": "AOAC",
        "Name": "Salmonella sp. in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "107",
        "Identifier": "978.26",
        "Context": "AOAC",
        "Name": "Somatic Cells in Milk",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "108",
        "Identifier": "980.22",
        "Context": "AOAC",
        "Name": "Hexachlorobenzene\Mirex Residue in Adipose",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "109",
        "Identifier": "980.31",
        "Context": "AOAC",
        "Name": "Bacillus cereus in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "110",
        "Identifier": "980.32",
        "Context": "AOAC",
        "Name": "Staphylococcal Enterotoxin in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "111",
        "Identifier": "980.37",
        "Context": "AOAC",
        "Name": "Staphylococcus aureus in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "112",
        "Identifier": "983.21",
        "Context": "AOAC",
        "Name": "Organochlorine Pesticide\PCB Residues",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "113",
        "Identifier": "983.25",
        "Context": "AOAC",
        "Name": "Total and Fecal Coliforms in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "114",
        "Identifier": "983.26",
        "Context": "AOAC",
        "Name": "Differentiation of Bacillus cereus Group",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "115",
        "Identifier": "984.21",
        "Context": "AOAC",
        "Name": "Organochlorine Pesticide Residues in Fats",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "116",
        "Identifier": "984.34",
        "Context": "AOAC",
        "Name": "E. coli Producing Heat-Labile Enterotoxin",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "117",
        "Identifier": "984.35",
        "Context": "AOAC",
        "Name": "E. coli Enterotoxins",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "118",
        "Identifier": "985.22",
        "Context": "AOAC",
        "Name": "Organo Pesticide Residues - GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "119",
        "Identifier": "985.23",
        "Context": "AOAC",
        "Name": "N-Methylcarb. Insecticide\Metabolite Residue",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "120",
        "Identifier": "985.42",
        "Context": "AOAC",
        "Name": "Salmonella in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "121",
        "Identifier": "985.43",
        "Context": "AOAC",
        "Name": "Poliovirus 1 in Oysters",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "122",
        "Identifier": "986.22",
        "Context": "AOAC",
        "Name": "TNT, RDX, HMX and 2,4-DNT in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "123",
        "Identifier": "986.33",
        "Context": "AOAC",
        "Name": "Bacterial and Coliform Counts in Milk",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "124",
        "Identifier": "986.34",
        "Context": "AOAC",
        "Name": "Enterotoxigenic E. coli",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "125",
        "Identifier": "986.35",
        "Context": "AOAC",
        "Name": "Salmonella in Foods by Photometer",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "126",
        "Identifier": "987.09",
        "Context": "AOAC",
        "Name": "Staphylococcus aureus in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "127",
        "Identifier": "987.1",
        "Context": "AOAC",
        "Name": "Salmonella in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "128",
        "Identifier": "987.11",
        "Context": "AOAC",
        "Name": "Salmonella in Low Moisture Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "129",
        "Identifier": "988.19",
        "Context": "AOAC",
        "Name": "E. Coli in Chilled\Frozen Food",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "130",
        "Identifier": "988.2",
        "Context": "AOAC",
        "Name": "Vibrio cholerae in Oysters",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "131",
        "Identifier": "989.1",
        "Context": "AOAC",
        "Name": "Bacterial and Coliforms in Dairy Products",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "132",
        "Identifier": "989.11",
        "Context": "AOAC",
        "Name": "Coliforms in Dairy Products",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "133",
        "Identifier": "989.12",
        "Context": "AOAC",
        "Name": "Salmonella sp.\E. coli in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "134",
        "Identifier": "989.13",
        "Context": "AOAC",
        "Name": "Motile Salmonella in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "135",
        "Identifier": "989.14",
        "Context": "AOAC",
        "Name": "Salmonella in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "136",
        "Identifier": "989.15",
        "Context": "AOAC",
        "Name": "Salmonella in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "137",
        "Identifier": "990.06",
        "Context": "AOAC",
        "Name": "Organochlorine Pesticide in Water by GC",
        "Description": "990.06 ~ AOAC . Organochlorine Pesticide in Water by GC",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4740\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "138",
        "Identifier": "990.07",
        "Context": "AOAC",
        "Name": "PCBs (Aroclor 1254) in Serum by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "139",
        "Identifier": "990.08",
        "Context": "AOAC",
        "Name": "Metals in Solid Wastes by ICP",
        "Description": "990.08 ~ AOAC . Metals in Solid Wastes by ICP",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4741\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "140",
        "Identifier": "990.11",
        "Context": "AOAC",
        "Name": "Total Coliform and E. coli in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "141",
        "Identifier": "990.12",
        "Context": "AOAC",
        "Name": "Aerobic Plate Count in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "142",
        "Identifier": "990.13",
        "Context": "AOAC",
        "Name": "Salmonella in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "143",
        "Identifier": "991.06",
        "Context": "AOAC",
        "Name": "N-Methylcarb.s in Drinking Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "144",
        "Identifier": "991.07",
        "Context": "AOAC",
        "Name": "Nitrogen and Phosphorus in Drinking Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "145",
        "Identifier": "991.08",
        "Context": "AOAC",
        "Name": "Glyphosate and AMPA in Environmental Water",
        "Description": "991.08 ~ AOAC . Glyphosate and AMPA in Environmental Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4742\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "146",
        "Identifier": "991.09",
        "Context": "AOAC",
        "Name": "Munition Residues in Soil by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "147",
        "Identifier": "991.12",
        "Context": "AOAC",
        "Name": "Salmonella in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "148",
        "Identifier": "991.13",
        "Context": "AOAC",
        "Name": "Salmonella, E. coli, Enterobac. in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "149",
        "Identifier": "991.14",
        "Context": "AOAC",
        "Name": "Coliform and E. coli Counts in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "150",
        "Identifier": "991.15",
        "Context": "AOAC",
        "Name": "Total Coliforms and E. coli in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5596",
        "Identifier": "991.31",
        "Context": "AOAC",
        "Name": "Determination of aflatoxins in botanical roots by a modification",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "151",
        "Identifier": "991.38",
        "Context": "AOAC",
        "Name": "Salmonella in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "152",
        "Identifier": "992.11",
        "Context": "AOAC",
        "Name": "Motile and Nonmotile Salmonella in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "153",
        "Identifier": "992.14",
        "Context": "AOAC",
        "Name": "Pesticides and Metabolites in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "154",
        "Identifier": "992.17",
        "Context": "AOAC",
        "Name": "Diquat and Paraquat Residues in Potatoes",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "155",
        "Identifier": "992.18",
        "Context": "AOAC",
        "Name": "Listeria Species",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "156",
        "Identifier": "992.19",
        "Context": "AOAC",
        "Name": "Listeria Species",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "157",
        "Identifier": "992.3",
        "Context": "AOAC",
        "Name": "Confirmed Total Coliform\E. coli in Food",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "158",
        "Identifier": "992.31",
        "Context": "AOAC",
        "Name": "Ethylene Thiourea Residues in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "159",
        "Identifier": "992.32",
        "Context": "AOAC",
        "Name": "Chlorinated Acidic Residues in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4611",
        "Identifier": "993.06",
        "Context": "AOAC",
        "Name": "Staphylococcal Enterotoxins by Enzyme Immunoassay",
        "Description": "993.06 ~ AOAC . Staphylococcal Enterotoxins by Enzyme Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10930\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "160",
        "Identifier": "993.08",
        "Context": "AOAC",
        "Name": "Salmonella in Foods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "161",
        "Identifier": "993.09",
        "Context": "AOAC",
        "Name": "Listeria in Dairy, Seafood and Meats",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "162",
        "Identifier": "993.1",
        "Context": "AOAC",
        "Name": "Clostridium perfringens from Shellfish",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "163",
        "Identifier": "993.11",
        "Context": "AOAC",
        "Name": "Bacterial Counts in Raw\Pasteurized Milk",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "164",
        "Identifier": "993.12",
        "Context": "AOAC",
        "Name": "Listeria monocytogenes in Milk",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "165",
        "Identifier": "993.14",
        "Context": "AOAC",
        "Name": "Trace Elements in Waters and Wastewaters",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "166",
        "Identifier": "993.15",
        "Context": "AOAC",
        "Name": "1,2-Dibromoethane and DBCP in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "167",
        "Identifier": "993.23",
        "Context": "AOAC",
        "Name": "Dissolved Hexavalent Chromium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "168",
        "Identifier": "993.3",
        "Context": "AOAC",
        "Name": "Inorganic Anions in Water",
        "Description": "993.3 ~ AOAC . Inorganic Anions in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4743\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "733213",
        "Identifier": "A-01-R",
        "Context": "USDOE\EML",
        "Name": "Alpha Radioassay",
        "Description": "Calibration Of Alpha-emitting Radionuclide  Solutions And Sources",
        "QualifierType": "",
        "URL": "http:\\www.wipp.energy.gov\NAMP\EMLLegacy\ProcMan\Sect4\4_5-2.pdf",
        "LastChangeDate": "2016-11-23T07:40:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5182",
        "Identifier": "A00070",
        "Context": "MWI",
        "Name": "Aldicarb in water by Immunoassay",
        "Description": "A00070 ~ MWI . Aldicarb in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7253\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5183",
        "Identifier": "A00071",
        "Context": "MWI",
        "Name": "Atrazine in water by Immunoassay",
        "Description": "A00071 ~ MWI . Atrazine in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7254\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5184",
        "Identifier": "A00072",
        "Context": "MWI",
        "Name": "Alachlor in water by Immunoassay",
        "Description": "A00072 ~ MWI . Alachlor in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7252\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5185",
        "Identifier": "A00073",
        "Context": "MWI",
        "Name": "Cyanazine in water by Immunoassay",
        "Description": "A00073 ~ MWI . Cyanazine in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7262\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5186",
        "Identifier": "A00074",
        "Context": "MWI",
        "Name": "Carbofuran in water by Immunoassay",
        "Description": "A00074 ~ MWI . Carbofuran in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7259\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5187",
        "Identifier": "A00080",
        "Context": "MWI",
        "Name": "Metolachlor in water by Immunoassay",
        "Description": "A00080 ~ MWI . Metolachlor in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7264\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5188",
        "Identifier": "A00081",
        "Context": "MWI",
        "Name": "Captan in water by Immunoassay",
        "Description": "A00081 ~ MWI . Captan in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7257\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5189",
        "Identifier": "A00082",
        "Context": "MWI",
        "Name": "2,4-D in Water by Immunoassay",
        "Description": "A00082 ~ MWI . 2,4-D in Water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5624\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833403",
        "Identifier": "A00082***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***2,4-D in Water by Immunoassay",
        "Description": "DO NOT USE ~ A00082 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5624\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5190",
        "Identifier": "A00088",
        "Context": "MWI",
        "Name": "Procymidone in water by Immunoassay",
        "Description": "A00088 ~ MWI . Procymidone in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7266\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5191",
        "Identifier": "A00093",
        "Context": "MWI",
        "Name": "Benomyl\Carbendazim in water by Immunoassay",
        "Description": "A00093 ~ MWI . Benomyl\Carbendazim in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7256\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5192",
        "Identifier": "A00097",
        "Context": "MWI",
        "Name": "Carbaryl in water by Immunoassay",
        "Description": "A00097 ~ MWI . Carbaryl in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7258\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5193",
        "Identifier": "A00105",
        "Context": "MWI",
        "Name": "Chlorothalonil in water by Immunoassay",
        "Description": "A00105 ~ MWI . Chlorothalonil in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7260\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5194",
        "Identifier": "A00111",
        "Context": "MWI",
        "Name": "PCP (pentachlorophenol) in water by immunoassay",
        "Description": "A00111 ~ MWI . PCP (pentachlorophenol) in water by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5637\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833414",
        "Identifier": "A00111***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***PCP (pentachlorophenol) in water by immunoassay",
        "Description": "DO NOT USE ~ A00111 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5637\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5195",
        "Identifier": "A00111\A00128",
        "Context": "MWI",
        "Name": "PCP (pentachlorophenol) in soils\sediment by immunoassay",
        "Description": "A00111\A00128 ~ MWI . PCP (pentachlorophenol) in soils\sediment by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5638\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833415",
        "Identifier": "A00111\A00128***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***PCP (pentachlorophenol) in soils\sediment by immunoassay",
        "Description": "DO NOT USE ~ A00111\A00128 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5638\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5196",
        "Identifier": "A00134",
        "Context": "MWI",
        "Name": "PCB (polychlorinated biphenyl) in water by immunoassay",
        "Description": "A00134 ~ MWI . PCB (polychlorinated biphenyl) in water by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5640\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5197",
        "Identifier": "A00134\A00137",
        "Context": "MWI",
        "Name": "PCB (polychlorinated biphenyl) in soils\sediment by immunoassay",
        "Description": "A00134\A00137 ~ MWI . PCB (polychlorinated biphenyl) in soils\sediment by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5641\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5198",
        "Identifier": "A00143",
        "Context": "MWI",
        "Name": "Chlorpyrifos in water by Immunoassay",
        "Description": "A00143 ~ MWI . Chlorpyrifos in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7261\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5199",
        "Identifier": "A00147",
        "Context": "MWI",
        "Name": "Paraquat in water by Immunoassay",
        "Description": "A00147 ~ MWI . Paraquat in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7267\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5200",
        "Identifier": "A00151",
        "Context": "MWI",
        "Name": "Atrazine in water by Immunoassay, High Sensitivity",
        "Description": "A00151 ~ MWI . Atrazine in water by Immunoassay, High Sensitivity",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7255\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5201",
        "Identifier": "A00157",
        "Context": "MWI",
        "Name": "PAH in water by immunoassay",
        "Description": "A00157 ~ MWI . PAH in water by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5631\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833409",
        "Identifier": "A00157***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***PAH in water by immunoassay",
        "Description": "DO NOT USE ~ A00157 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5631\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5202",
        "Identifier": "A00157\A00160",
        "Context": "MWI",
        "Name": "PAH in soils\sediment by immunoassay",
        "Description": "A00157\A00160 ~ MWI . PAH in soils\sediment by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5632\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833410",
        "Identifier": "A00157\A00160***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***PAH in soils\sediment by immunoassay",
        "Description": "DO NOT USE ~ A00157\A00160 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5632\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5203",
        "Identifier": "A00171",
        "Context": "MWI",
        "Name": "Triclopyr in water by Immunoassay",
        "Description": "A00171 ~ MWI . Triclopyr in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7271\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5204",
        "Identifier": "A00178",
        "Context": "MWI",
        "Name": "Spinosad in water by Immunoassay",
        "Description": "A00178 ~ MWI . Spinosad in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7269\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5205",
        "Identifier": "A00196",
        "Context": "MWI",
        "Name": "Methomyl in water by Immunoassay",
        "Description": "A00196 ~ MWI . Methomyl in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7263\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5206",
        "Identifier": "A00201",
        "Context": "MWI",
        "Name": "PAH in water by immunoassay",
        "Description": "A00201 ~ MWI . PAH in water by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5633\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5207",
        "Identifier": "A00201\A00204",
        "Context": "MWI",
        "Name": "PAH in soils\sediment by immunoassay",
        "Description": "A00201\A00204 ~ MWI . PAH in soils\sediment by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5634\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833412",
        "Identifier": "A00201\A00204***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***PAH in soils\sediment by immunoassay",
        "Description": "DO NOT USE ~ A00201\A00204 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5634\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833411",
        "Identifier": "A00205",
        "Context": "MWI",
        "Name": "PAH in water by immunoassay",
        "Description": "A00205 ~ Modern Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5633\",
        "LastChangeDate": "2021-07-07T12:49:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5208",
        "Identifier": "A00208",
        "Context": "MWI",
        "Name": "TCP in water by Immunoassay",
        "Description": "A00208 ~ MWI . TCP in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7270\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5209",
        "Identifier": "A00212",
        "Context": "MWI",
        "Name": "Silvex (2,4,5-TP) in water by immunoassay",
        "Description": "A00212 ~ MWI . Silvex (2,4,5-TP) in water by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5643\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5210",
        "Identifier": "A00216",
        "Context": "MWI",
        "Name": "Dieldrin (cyclodiene) in water by immunoassay",
        "Description": "A00216 ~ MWI . Dieldrin (cyclodiene) in water by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5620\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833400",
        "Identifier": "A00216***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***Dieldrin (cyclodiene) in water by immunoassay",
        "Description": "DO NOT USE ~ A00216 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5620\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5211",
        "Identifier": "A00216\A00256",
        "Context": "MWI",
        "Name": "Dieldrin (cyclodiene) in soils\sediment by immunoassay",
        "Description": "A00216\A00256 ~ MWI . Dieldrin (cyclodiene) in soils\sediment by immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5621\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833401",
        "Identifier": "A00216\A00256***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***Dieldrin (cyclodiene) in soils\sediment by immunoassay",
        "Description": "DO NOT USE ~ A00216\A00256 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5621\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5212",
        "Identifier": "A00224",
        "Context": "MWI",
        "Name": "Metribuzin in water by Immunoassay",
        "Description": "A00224 ~ MWI . Metribuzin in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7265\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5213",
        "Identifier": "A00243",
        "Context": "MWI",
        "Name": "Nitrate in water by colorimetric assay",
        "Description": "A00243 ~ MWI . Nitrate in water by colorimetric assay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5629\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833407",
        "Identifier": "A00243***retired***",
        "Context": "MODERN WATER***retired***use MWI",
        "Name": "DO NOT USE***Nitrate in water by colorimetric assay",
        "Description": "DO NOT USE ~ A00243 ~ Modern Water",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5629\",
        "LastChangeDate": "2022-04-07T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5214",
        "Identifier": "A00246",
        "Context": "MWI",
        "Name": "Simazine in water by Immunoassay",
        "Description": "A00246 ~ MWI . Simazine in water by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7268\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5301",
        "Identifier": "A2540G",
        "Context": "APHA",
        "Name": "Percent Moisture",
        "Description": "Standard Method (19th ed.) 2540 G: TOTAL, FIXED AND VOLATILES IN SOLIDS AND SEMI-SOLID SAMPLES",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-01-12T15:28:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6107",
        "Identifier": "A406B",
        "Context": "USEPA",
        "Name": "TITRIMETRIC METHOD FOR FREE CARBON DIOXIDE",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-13T19:43:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6108",
        "Identifier": "A418C",
        "Context": "USEPA",
        "Name": "NITROGEN (NITRATE) CADMIUM REDUCTION METHOD",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-13T19:43:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "795143",
        "Identifier": "A905904K",
        "Context": "RSC",
        "Name": "Foppe Smedes,Determination of total lipid using non-chlorinated solvents",
        "Description": "Foppe Smedes, Analyst, 1999,124, 1711-1718 https:\\doi.org\10.1039\A905904K or https:\\pubs.rsc.org\en\content\articlehtml\1999\an\a905904k",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-05-18T18:15:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "819",
        "Identifier": "AES-0029",
        "Context": "FISON",
        "Name": "AES-0029 ~ Trace Element Analysis of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5142",
        "Identifier": "AFS SD TROUT",
        "Context": "AFS",
        "Name": "AFS SD TROUT ~ Trout collection in wadeable trout streams by backpack electrofishing",
        "Description": "AFS SD Trout ~ AFS . Trout collection in wadeable trout streams by backpack electrofishing",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9971\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5143",
        "Identifier": "AFS-WWSTC",
        "Context": "AFS",
        "Name": "AFS WWSTC ~ Fish collection in warmwater streams by electrofishing",
        "Description": "AFS-WWSTC ~ AFS . Fish collection in warmwater streams by electrofishing",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10032\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5224",
        "Identifier": "AG-625",
        "Context": "SYNGENTA",
        "Name": "Atrazine by Immunoassay",
        "Description": "AG-625 ~ Syngenta . Atrazine by Immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4667\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6112",
        "Identifier": "AKP01",
        "Context": "USDOI\USGS",
        "Name": "NUTRIENTS, WU, WCA,PERSULFATE,CF",
        "Description": "Nutrients, unfiltered water, acidified, alkaline-persulfate digestion, continuous flow colorimetry",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6113",
        "Identifier": "ALGOR",
        "Context": "USDOI\USGS",
        "Name": "HACH-HYDROLAB\TURNER DESIGNS,CYN",
        "Description": "Hach-Hydrolab with Turner Designs Cyanobacteria (blue-green algae) submersible fluorescence sensor, in-vivo fluorescence, phycocyanin, excitation 590 nm, emission 650 nm",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1228",
        "Identifier": "AM-01",
        "Context": "USDOE\EML",
        "Name": "Americium in Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2349",
        "Identifier": "AM-01",
        "Context": "USEPA",
        "Name": "Americium-241 in Ashed Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1229",
        "Identifier": "AM-02",
        "Context": "USDOE\EML",
        "Name": "Americium-241 in Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1230",
        "Identifier": "AM-03(A)",
        "Context": "USDOE\EML",
        "Name": "AM-03 A  ~ Americium-241 in Air Filters",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1231",
        "Identifier": "AM-03(T)",
        "Context": "USDOE\EML",
        "Name": "AM-03 T  ~ Americium-241 in Tissue",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1232",
        "Identifier": "AM-03(W)",
        "Context": "USDOE\EML",
        "Name": "AM-03 W  ~ Americium-241 in Water",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4734",
        "Identifier": "AM-04-RC",
        "Context": "USDOE\EML",
        "Name": "AM-04 RC ~ Americium and Plutonium by Ion Exchange and Alpha Spectrometry",
        "Description": "Am-04-RC ~ DOE EML . Americium and Plutonium by Ion Exchange and Alpha Spectrometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10004\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6109",
        "Identifier": "AM20GAX",
        "Context": "USEPA",
        "Name": "BIODEGRADATION INDICATOR GASES",
        "Description": "Analytical Method AM20GAX is a specialized laboratory procedure used for the analysis of dissolved gases—specifically methane, ethane, and ethylene—in water samples. Developed by Microseeps (now Pace Analytical), this method utilizes a gas chromatography (GC) headspace equilibration technique, often as a modification of EPA method RSK-175.",
        "QualifierType": "",
        "URL": "https:\\semspub.epa.gov\work\01\234896.pdf",
        "LastChangeDate": "2026-03-13T19:43:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1233",
        "Identifier": "ANION-01",
        "Context": "USDOE\EML",
        "Name": "Anions - Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5226",
        "Identifier": "AQ4500",
        "Context": "THERMO-SCIENTIFIC",
        "Name": "Turbidity of Water by LED Nephelometry",
        "Description": "AQ4500 ~ Thermo-Scientific . Turbidity of Water by LED Nephelometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10441\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6114",
        "Identifier": "AS089",
        "Context": "USDOI\USGS",
        "Name": "YSI 6131 BGA-PC SENSOR",
        "Description": "YSI 6131 blue-green algae (BGA-PC) sensor, phycocyanin, in-vivo fluorescence, excitation 590-595 nm, emission 650-670 nm",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6115",
        "Identifier": "AS094",
        "Context": "USDOI\USGS",
        "Name": "TURNER DESIGNS SCUFA, CYANOBACT",
        "Description": "Turner Designs SCUFA submersible fluorometer, in-vivo fluorescence, Cyanobacteria (blue-green algae), phycocyanin, excitation 590 nm, emission 670 nm",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6116",
        "Identifier": "AS101",
        "Context": "USDOI\USGS",
        "Name": "TURNER DESIGNS CYCLOPS-7, CYANOB",
        "Description": "Turner Designs CYCLOPS-7 submersible fluorometer, in-vivo fluorescence, Cyanobacteria (blue-green algae), phycocyanin, excitation 590 nm, emission 645-715 nm",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6117",
        "Identifier": "AS102",
        "Context": "USDOI\USGS",
        "Name": "COMPUTATION BY NWIS ALGORITHM",
        "Description": "Computation by NWIS algorithm",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6118",
        "Identifier": "AS105",
        "Context": "USDOI\USGS",
        "Name": "C-14, SOLIDS, BY AMS",
        "Description": "Carbon-14, Solid Material, by Accelerator Mass Spectrometry (AMS)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6119",
        "Identifier": "AS110",
        "Context": "USDOI\USGS",
        "Name": "CARBON-14, WU, BY AMS",
        "Description": "Carbon-14, Water, Unfiltered, by Accelerator Mass Spectrometry (AMS)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6120",
        "Identifier": "ASM01",
        "Context": "USDOI\USGS",
        "Name": "AM-241, BS, ALPHA (STL)",
        "Description": "Americium-241, bed sediment, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "814968",
        "Identifier": "ASPILA",
        "Context": "APHA",
        "Name": "A semi-automated method for the determination of inorganic, organic and total phosphate in sediments",
        "Description": "https:\\pubmed.ncbi.nlm.nih.gov\1259177\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-12-13T21:50:12 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4665",
        "Identifier": "ASTM 3972-02",
        "Context": "ASTM",
        "Name": "Uranium isotopes in water by chemical separations and alpha pulse-height analysis.",
        "Description": "ASTM 3972-02 ~ ASTM . Uranium isotopes in water by chemical separations and alpha pulse-height analysis.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10297\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5051",
        "Identifier": "ASTRORT-PCR",
        "Context": "USEPA",
        "Name": "Astrovirus serotypes by real-time reverse transcription-PCR",
        "Description": "AstroRT-PCR ~ EPA-OW . Astrovirus serotypes by real-time reverse transcription-PCR",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\11012\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5167",
        "Identifier": "ATP D05-0035",
        "Context": "MODIFIED COLITAG",
        "Name": "E. coli and other Total Coliforms in Water using Modified Colitag Medium",
        "Description": "ATP D05-0035 ~ Modified Colitag . E. coli and other Total Coliforms in Water using Modified Colitag Medium",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10619\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5315",
        "Identifier": "Ammonia-001",
        "Context": "TIMBERLINE",
        "Name": "Determination of Inorganic Ammonia by Conductivity Cell Analysis\"",
        "Description": "http:\\www.timberlineinstruments.com\wp-content\uploads\2011\10\TimberlineAmmoniaEPAMethod.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-08-03T09:15:06 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5745",
        "Identifier": "Anatoxin-a HPLC-FL",
        "Context": "USEPA",
        "Name": "Anatoxin-a HPLC-FL",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4750",
        "Identifier": "B-3520-85",
        "Context": "USDOI\USGS",
        "Name": "Periphyton, Biomass, Dry Weight, total and Ash Weight",
        "Description": "B-3520-85 ~ USGS-NWQL . Periphyton, Biomass, Dry Weight, total and Ash Weight",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9326\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4751",
        "Identifier": "B-9001-95 (CV-AAS)",
        "Context": "USDOI\USGS",
        "Name": "B-9001-95 CV AAS  ~ Trace Metals in Aquatic Biological Material by CV-AAS",
        "Description": "B-9001-95 (CV-AAS) ~ USGS-NWQL . Trace Metals in Aquatic Biological Material by CV-AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8962\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4752",
        "Identifier": "B-9001-95 (ICP-AES)",
        "Context": "USDOI\USGS",
        "Name": "B-9001-95 ICP AES  ~ Trace Metals in Aquatic Biological Material by ICP-AES",
        "Description": "B-9001-95 (ICP-AES) ~ USGS-NWQL . Trace Metals in Aquatic Biological Material by ICP-AES",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8965\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4753",
        "Identifier": "B-9001-95 (ICP-MS)",
        "Context": "USDOI\USGS",
        "Name": "B-9001-95 ICP MS  ~ Trace Metals in Aquatic Biological Material by ICP-MS",
        "Description": "B-9001-95 (ICP-MS) ~ USGS-NWQL . Trace Metals in Aquatic Biological Material by ICP-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8964\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4756",
        "Identifier": "B-9135-00 SLIDE PREP",
        "Context": "USDOI\USGS",
        "Name": "Benthic Macroinvertebrate Slide Preparation",
        "Description": "B-9135-00 (Slide Preparation) ~ USGS-NWQL . Benthic Macroinvertebrate Slide Preparation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9347\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1283",
        "Identifier": "B0001",
        "Context": "USDOI\USGS",
        "Name": "Standard Plate Count- Membrane Filter Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1284",
        "Identifier": "B0005",
        "Context": "USDOI\USGS",
        "Name": "Total Bacteria- Epifluorescence Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1285",
        "Identifier": "B0025",
        "Context": "USDOI\USGS",
        "Name": "Total Coliform Bacteria- Immediate Incubation Test",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1286",
        "Identifier": "B0030",
        "Context": "USDOI\USGS",
        "Name": "Total Coliform Bacteria- Delayed Incubation Test",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1287",
        "Identifier": "B0035",
        "Context": "USDOI\USGS",
        "Name": "Total Coliform Bacteria- Presumptive Test- MPN Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1288",
        "Identifier": "B0040",
        "Context": "USDOI\USGS",
        "Name": "Total Coliform Bacteria- Presumptive Onsite Test- MPN Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1289",
        "Identifier": "B0045",
        "Context": "USDOI\USGS",
        "Name": "Total Coliform Bacteria- Confirmation Test- MPN Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1290",
        "Identifier": "B0050",
        "Context": "USDOI\USGS",
        "Name": "Fecal Coliform Bacteria- Immediate Incubation Test",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1291",
        "Identifier": "B0051",
        "Context": "USDOI\USGS",
        "Name": "Fecal Coliform Bacteria- Presumptive Test- MPN Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1292",
        "Identifier": "B0055",
        "Context": "USDOI\USGS",
        "Name": "Fecal Streptococcal Bacteria- Immediate Incubation Test",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1293",
        "Identifier": "B0060",
        "Context": "USDOI\USGS",
        "Name": "Fecal Streptococcal Bacteria- Confirmation Test",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1294",
        "Identifier": "B0065",
        "Context": "USDOI\USGS",
        "Name": "Fecal Streptococcal Bacteria- Presumptive\Confirmation- most probable number (MPN) method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1295",
        "Identifier": "B0100",
        "Context": "USDOI\USGS",
        "Name": "Salmonella and Shigella- Plate Count",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1296",
        "Identifier": "B0105",
        "Context": "USDOI\USGS",
        "Name": "Pseudomonas aeruginosa- Plate Count",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1297",
        "Identifier": "B0400",
        "Context": "USDOI\USGS",
        "Name": "Sulfate-Reducing Bacteria- MPN Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1298",
        "Identifier": "B0420",
        "Context": "USDOI\USGS",
        "Name": "Nitrifying Bacteria- MPN Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1299",
        "Identifier": "B0430",
        "Context": "USDOI\USGS",
        "Name": "Denitrifying and Nitrate-reducing Bacteria- MPN Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1300",
        "Identifier": "B1505",
        "Context": "USDOI\USGS",
        "Name": "Phytoplankton Enumberation- Counting Cell Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1301",
        "Identifier": "B1520",
        "Context": "USDOI\USGS",
        "Name": "Phytoplankton Enumberation- Inverted-Microscope Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1302",
        "Identifier": "B2501",
        "Context": "USDOI\USGS",
        "Name": "Zooplankton Enumberation- Counting Cell Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1303",
        "Identifier": "B2520",
        "Context": "USDOI\USGS",
        "Name": "Zooplankton- Gravimetric Method for Biomass Determination",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1304",
        "Identifier": "B3401",
        "Context": "USDOI\USGS",
        "Name": "Seston- Glass-fiber Filter Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1305",
        "Identifier": "B3501",
        "Context": "USDOI\USGS",
        "Name": "Periphyton Enumberation- Sedgwick-Rafter Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1306",
        "Identifier": "B3520",
        "Context": "USDOI\USGS",
        "Name": "Periphyton- Gravimetric Method for Biomass Determination",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1307",
        "Identifier": "B3545",
        "Context": "USDOI\USGS",
        "Name": "Periphyton Enumberation- Inverted-Microscope Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1308",
        "Identifier": "B4520",
        "Context": "USDOI\USGS",
        "Name": "Macrophytes- Distribution and Abundance (quantitative method)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1309",
        "Identifier": "B5001",
        "Context": "USDOI\USGS",
        "Name": "Benthic Invertebrates- Faunal Survey (qualitative method)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1310",
        "Identifier": "B5020",
        "Context": "USDOI\USGS",
        "Name": "Benthic Invertebrates- Numerical Assessment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1311",
        "Identifier": "B5040",
        "Context": "USDOI\USGS",
        "Name": "Benthic Invertebrates- Distribution and Abundance (quantitative method)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1312",
        "Identifier": "B5050",
        "Context": "USDOI\USGS",
        "Name": "Benthic Invertebrate Drift Determination",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1313",
        "Identifier": "B6020",
        "Context": "USDOI\USGS",
        "Name": "Aquatic Vertebrates- Life History (quantitative method)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1314",
        "Identifier": "B6501",
        "Context": "USDOI\USGS",
        "Name": "Chlorophyll a-b-c in Phytoplankton by Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1315",
        "Identifier": "B6520",
        "Context": "USDOI\USGS",
        "Name": "Chlorophyll a-b in Phytoplankton by Chromatography\Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1316",
        "Identifier": "B6530",
        "Context": "USDOI\USGS",
        "Name": "Chlorophyll a-b in Phytoplankton by HP Liquid Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1317",
        "Identifier": "B6540",
        "Context": "USDOI\USGS",
        "Name": "Chlorophyll a-b in Phytoplankton by Chromatography\Fluorometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1318",
        "Identifier": "B6560",
        "Context": "USDOI\USGS",
        "Name": "Biomass\Chlorophyll Ratio for Phytoplankton",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1319",
        "Identifier": "B6601",
        "Context": "USDOI\USGS",
        "Name": "Chlorophyll a-b-c in Periphyton by Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1320",
        "Identifier": "B6620",
        "Context": "USDOI\USGS",
        "Name": "Chlorophyll a-b in Periphyton by Chromatography\Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1321",
        "Identifier": "B6630",
        "Context": "USDOI\USGS",
        "Name": "Chlorophyll a-b in Periphyton by HP Liquid Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1322",
        "Identifier": "B6640",
        "Context": "USDOI\USGS",
        "Name": "Chlorophyll a-b in Periphyton by Chromatography\Fluorometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1323",
        "Identifier": "B6660",
        "Context": "USDOI\USGS",
        "Name": "Biomass\Chlorophyll Ratio in Periphyton",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1324",
        "Identifier": "B6700",
        "Context": "USDOI\USGS",
        "Name": "Adenosine triphosphate (ATP) Determination in Water Sample",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1325",
        "Identifier": "B8001",
        "Context": "USDOI\USGS",
        "Name": "Productivity- Oxygen Light\Dark-Bottle Method for Phytoplankton",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1326",
        "Identifier": "B8020",
        "Context": "USDOI\USGS",
        "Name": "Productivity- Carbon-14 Light\Dark-Bottle Method for Phytoplankton",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1327",
        "Identifier": "B8040",
        "Context": "USDOI\USGS",
        "Name": "Productivity- Oxygen Light\Dark-Enclosure Method for Periphyton",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1328",
        "Identifier": "B8100",
        "Context": "USDOI\USGS",
        "Name": "Productivity & Community Metabolism by Diel Oxygen-Curve Method in Stratified Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1329",
        "Identifier": "B8120",
        "Context": "USDOI\USGS",
        "Name": "Productivity & Community Metabolism by Diel O2-Curve Streams",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1330",
        "Identifier": "B8502",
        "Context": "USDOI\USGS",
        "Name": "Algal Growth Potential (AGP) Spikes for Nutrient Limitation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6121",
        "Identifier": "BAC19",
        "Context": "USDOI\USGS",
        "Name": "AM-241, SS, ALPHA SPECTROMETRY",
        "Description": "Americium-241, Suspended, by Alpha Spectrometry",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5052",
        "Identifier": "BACANTR-SG",
        "Context": "USEPA",
        "Name": "Bacillus anthracis - Sentinel Procedure",
        "Description": "Bacantr-SG ~ EPA-OW . Bacillus anthracis - Sentinel Procedure",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10925\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6122",
        "Identifier": "BAROM",
        "Context": "USDOI\USGS",
        "Name": "AM-241, WF, ALPHA SPECTROMETRY",
        "Description": "Americium-241, Water, Filtered, by Alpha Spectrometry",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6123",
        "Identifier": "BC009",
        "Context": "USDOI\USGS",
        "Name": "AM-241, WU, ALPHA (STL)",
        "Description": "Americium-241, water, unfiltered @ 0.1 pCi\L, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5144",
        "Identifier": "BIOO-1018",
        "Context": "BIOO",
        "Name": "Malachite Green Water Test - column-based",
        "Description": "BIOO-1018 ~ Bioo Scientific . Malachite Green Water Test - column-based",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10881\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5053",
        "Identifier": "BREVELCMS",
        "Context": "USEPA",
        "Name": "Brevetoxin in water by LCMS",
        "Description": "BreveLCMS ~ EPA-OW . Brevetoxin in water by LCMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10926\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770760",
        "Identifier": "BTEX",
        "Context": "PACE LABS",
        "Name": "BTEX",
        "Description": "https:\\www.pacelabs.com\assets\documents\Environmental\capabilities-2015.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-06-21T23:08:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "19267",
        "Identifier": "Basket",
        "Context": "WQXTEST",
        "Name": "Basket ~ MassWateR; Basket Water Sample Collection",
        "Description": "This method involves the collection of a surface water sample using a bucket or bottle within a basket, typically lowered from a bridge. This is a generic method intended for use by MassWateR users.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-12-12T18:20:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "815001",
        "Identifier": "Benthic macroinvertebrates",
        "Context": "USEPA",
        "Name": "Identification and Enumeration of benthic macroinvertebrates",
        "Description": "Environmental Monitoring and Assessment Program (EMAP) Laboratory Methods Manual Estuaries",
        "QualifierType": "",
        "URL": "https:\\nepis.epa.gov\Exe\ZyNET.exe\P1002QX4.txt?ZyActionD=ZyDocument&Client=EPA&Index=1995%20Thru%201999&Docs=&Query=&Time=&EndTime=&SearchMethod=1&TocRestrict=n&Toc=&TocEntry=&QField=&QFieldYear=&QFieldMonth=&QFieldDay=&UseQField=&IntQFieldOp=0&ExtQField",
        "LastChangeDate": "2022-04-05T16:32:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2350",
        "Identifier": "C-001-1",
        "Context": "USEPA",
        "Name": "Alkalinity of Water by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2351",
        "Identifier": "C-002-1",
        "Context": "USEPA",
        "Name": "COD by Open Reflux",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2352",
        "Identifier": "C-003-1",
        "Context": "USEPA",
        "Name": "Anions by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2353",
        "Identifier": "C-004-1",
        "Context": "USEPA",
        "Name": "Total Hardness by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2354",
        "Identifier": "C-005-1",
        "Context": "USEPA",
        "Name": "Oil and Grease by Extraction\Gravimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2355",
        "Identifier": "C-006-1",
        "Context": "USEPA",
        "Name": "Total Dissolved Solids in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2356",
        "Identifier": "C-007-1",
        "Context": "USEPA",
        "Name": "Total Organic Carbon in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2357",
        "Identifier": "C-008-1",
        "Context": "USEPA",
        "Name": "Total Suspended Solids in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2358",
        "Identifier": "C-01",
        "Context": "USEPA",
        "Name": "Carbon-14 in Aqueous Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2359",
        "Identifier": "C-010-1",
        "Context": "USEPA",
        "Name": "Soil Extractable Organics by Gravimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2360",
        "Identifier": "C-011-1",
        "Context": "USEPA",
        "Name": "Soil % Moisture by Gravimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2361",
        "Identifier": "C-012-1",
        "Context": "USEPA",
        "Name": "Free Liquid in Wastes by Filtration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2362",
        "Identifier": "C-013-1",
        "Context": "USEPA",
        "Name": "Soil pH",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2363",
        "Identifier": "C-014-1",
        "Context": "USEPA",
        "Name": "Specific Gravity of Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2364",
        "Identifier": "C-015-1",
        "Context": "USEPA",
        "Name": "Total Carbon in Soil by Combustion",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2365",
        "Identifier": "C-017-1",
        "Context": "USEPA",
        "Name": "Water Level Measurement in Wells",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2366",
        "Identifier": "C-018-1",
        "Context": "USEPA",
        "Name": "Controlled Pumping Test in Wells",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2367",
        "Identifier": "C-019-1",
        "Context": "USEPA",
        "Name": "Slug Test for Hydraulic Conductivity",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "762511",
        "Identifier": "C136",
        "Context": "ASTM",
        "Name": "Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates",
        "Description": "https:\\www.astm.org\Standards\C136.htm",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-06-21T13:00:27 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1234",
        "Identifier": "CA-01",
        "Context": "USDOE\EML",
        "Name": "Calcium - AA Spectrometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1235",
        "Identifier": "CA-02",
        "Context": "USDOE\EML",
        "Name": "Calcium - Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5159",
        "Identifier": "CAB-EC-1-2001",
        "Context": "ENVCANADA-NWRI",
        "Name": "Benthic Invertebrate sample collection; 3 minute kicknet in wadeable streams",
        "Description": "CAB-EC-1-2001 ~ EnvCanada-NWRI . Benthic Invertebrate sample collection. 3 minute kicknet in wadeable streams",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9511\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6124",
        "Identifier": "CAL06",
        "Context": "USDOI\USGS",
        "Name": "AM-241, BS, ALPHA (EBERLINE)",
        "Description": "Americium-241, bed sediment, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5730",
        "Identifier": "CDC - E. coli and Shigella",
        "Context": "CDC",
        "Name": "CDC - E. coli and Shigella",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5146",
        "Identifier": "CDC - S. TYPHI",
        "Context": "CDC",
        "Name": "Salmonella Typhi in Isolates by Real-time Polymerase Chain Reaction.",
        "Description": "CDC - S. Typhi ~ CDC . Salmonella Typhi in Isolates by Real-time Polymerase Chain Reaction.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10303\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5147",
        "Identifier": "CDC - V. CHOLERAE",
        "Context": "CDC",
        "Name": "V. cholerae in Isolates by Real-time Polymerase Chain Reaction",
        "Description": "CDC - V. cholerae ~ CDC . V. cholerae in Isolates by Real-time Polymerase Chain Reaction",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10306\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5232",
        "Identifier": "CENSOR STATS",
        "Context": "PRACTICAL STATS",
        "Name": "Statistics for Censored Environmental Data Using Minitab and R",
        "Description": "Statistics for Censored Environmental Data Using Minitab and R ~ Practical Stats . Helsel, Dennis R",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11939\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4924",
        "Identifier": "CENSORED DATA STATS",
        "Context": "USDOI\USGS",
        "Name": "Nondetects and Data Analysis: Statistics for Censored Environmental Data ",
        "Description": "Nondetects and Data Analysis: Statistics for Censored Environmental Data ~ USGS . Helsel, Dennis R.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11951\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5148",
        "Identifier": "CHEM-TP-A.1",
        "Context": "USDOE\RESL",
        "Name": "Actinides in Small Environmental Samples by Sequential Determination",
        "Description": "CHEM-TP-A.1 ~ DOE RESL . Actinides in Small Environmental Samples by Sequential Determination",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4857\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5149",
        "Identifier": "CHEM-TP-A.20",
        "Context": "USDOE\RESL",
        "Name": "Actinide Separations for Alpha Spectrometry Using Neodymium Fluoride Coprecipitation",
        "Description": "CHEM-TP-A.20 ~ DOE RESL . Actinide Separations for Alpha Spectrometry Using Neodymium Fluoride Coprecipitation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4858\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5150",
        "Identifier": "CHEM-TP-FE.1",
        "Context": "USDOE\RESL",
        "Name": "Fe-55 in Water by Liquid Scintillation Counting",
        "Description": "CHEM-TP-FE.1 ~ DOE RESL . Fe-55 in Water by Liquid Scintillation Counting",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4859\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5151",
        "Identifier": "CHEM-TP-GA\B.1",
        "Context": "USDOE\RESL",
        "Name": "Gross Alpha and Beta in Water",
        "Description": "CHEM-TP-GA\B.1 ~ DOE RESL . Gross Alpha and Beta in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4860\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5152",
        "Identifier": "CHEM-TP-GA\B.2",
        "Context": "USDOE\RESL",
        "Name": "Gross Alpha and Beta in Water and Waste Water",
        "Description": "CHEM-TP-GA\B.2 ~ DOE RESL . Gross Alpha and Beta in Water and Waste Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4861\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5153",
        "Identifier": "CHEM-TP-H3.1",
        "Context": "USDOE\RESL",
        "Name": "Tritium in Water, Wastewater, Milk, and Urine by Liquid Scintillation Counting",
        "Description": "CHEM-TP-H3.1 ~ DOE RESL . Tritium in Water, Wastewater, Milk, and Urine by Liquid Scintillation Counting",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4862\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5154",
        "Identifier": "CHEM-TP-NI.1",
        "Context": "USDOE\RESL",
        "Name": "Ni-63 in Water by Liquid Scintillation Counting",
        "Description": "CHEM-TP-Ni.1 ~ DOE RESL . Ni-63 in Water by Liquid Scintillation Counting",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4863\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5155",
        "Identifier": "CHEM-TP-SP.2",
        "Context": "USDOE\RESL",
        "Name": "Sample Reconstitution",
        "Description": "CHEM-TP-SP.2 ~ DOE RESL . Sample Reconstitution",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4864\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5156",
        "Identifier": "CHEM-TP-SR.06",
        "Context": "USDOE\RESL",
        "Name": "Sr-89 and Sr-90 in Liquid Radioactive Wastes or Waters by Beta Counting",
        "Description": "CHEM-TP-SR.06 ~ DOE RESL . Sr-89 and Sr-90 in Liquid Radioactive Wastes or Waters by Beta Counting",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4866\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5157",
        "Identifier": "CHEM-TP-SR.1",
        "Context": "USDOE\RESL",
        "Name": "Strontium-90 in Soil, Water, and Filter Samples",
        "Description": "CHEM-TP-SR.1 ~ DOE RESL . Strontium-90 in Soil, Water, and Filter Samples",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4865\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5158",
        "Identifier": "CHEM-TP-SR.7",
        "Context": "USDOE\RESL",
        "Name": "Sr-90 Carbonate Method",
        "Description": "CHEM-TP-SR.7 ~ DOE RESL . Sr-90 Carbonate Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4867\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6125",
        "Identifier": "CL020",
        "Context": "USDOI\USGS",
        "Name": "AM-241, SS, ALPHA SPECTROMETRY",
        "Description": "Americium-241, suspended sediment, pCi\g, by alpha spectrometry",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6126",
        "Identifier": "CL021",
        "Context": "USDOI\USGS",
        "Name": "AM-241, WF, ALPHA SPECTROMETRY",
        "Description": "Americium-241, Water, Filtered, by Alpha Spectrometry",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6127",
        "Identifier": "CL037",
        "Context": "USDOI\USGS",
        "Name": "AM-241, WU, ALPHA (EBERLINE)",
        "Description": "Americium-241, water, unfiltered, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6128",
        "Identifier": "CL041",
        "Context": "USDOI\USGS",
        "Name": "ALPHA 2SPE, U(NATURAL), WF",
        "Description": "G.ALPHA, FIL, U-NA",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6129",
        "Identifier": "CL048",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA,TH-230,WF (EBERLINE)",
        "Description": "Gross alpha radioactivity, Thorium-230 curve, with data package, water, filtered (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6130",
        "Identifier": "CL050",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA, TH-230, WF, HS",
        "Description": "Gross alpha radioactivity, Thorium-230 curve, with data package, water, filtered, pCi\L, high solids",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6131",
        "Identifier": "CL053",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA, TH-230, WU, 30 DAY",
        "Description": "Gross alpha radioactivity, Thorium-230 curve, with data package, water, unfiltered, pCi\L, 30 day recount",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6132",
        "Identifier": "CL057",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA, TH-230, WU, 72 HR",
        "Description": "Gross alpha radioactivity, Thorium-230 curve, with data package, water, unfiltered, pCi\L, 72 hours",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6259",
        "Identifier": "CL151",
        "Context": "USDOI\USGS",
        "Name": "Silica, wf, DA",
        "Description": "Silica in filtered water by reduced silicomolybdate acid colorimetry using a discrete analyzer",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-04-17T20:27:29 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3057",
        "Identifier": "COLILERT",
        "Context": "IDEXX",
        "Name": "Coliform\E. coli Enzyme substrate test; ONPG-MUG test",
        "Description": "Colilert ~ IDEXX . Coliform\E. coli Enzyme substrate test. ONPG-MUG test",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5584\",
        "LastChangeDate": "2007-09-07T11:36:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3081",
        "Identifier": "COLILERT-18",
        "Context": "IDEXX",
        "Name": "Coliform\E. coli Enzyme substrate test; ONPG-MUG test",
        "Description": "Colilert-18 ~ IDEXX . Coliform\E. coli Enzyme substrate test. ONPG-MUG test",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5585\",
        "LastChangeDate": "2007-12-14T09:50:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3082",
        "Identifier": "COLILERT-182000",
        "Context": "IDEXX",
        "Name": "Coliform\E. coli Enzyme substrate test; ONPG-MUG test",
        "Description": "https:\\www.nemi.gov\methods\method_summary\5585\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-12-14T09:50:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3083",
        "Identifier": "COLILERT\2000",
        "Context": "IDEXX",
        "Name": "Coliform\E. coli Enzyme substrate test; ONPG-MUG test",
        "Description": "https:\\www.nemi.gov\methods\method_summary\5584\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-12-14T09:50:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5165",
        "Identifier": "COLISCAN",
        "Context": "MICROLOGY LABS",
        "Name": "E. coli and other coliform bacteria by Coliscan MF",
        "Description": "Coliscan ~ Micrology Labs . E. coli and other coliform bacteria by Coliscan MF",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5578\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "606210",
        "Identifier": "COLISURE",
        "Context": "IDEXX",
        "Name": "Coliform\E. coli Results in 24 Hours",
        "Description": "Colisure ~ IDEXX . Coliform\E. coli Enzyme substrate test. CPRG-MUG test",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5586\",
        "LastChangeDate": "2011-12-06T14:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6133",
        "Identifier": "COMB6",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA, TH-230, WF, 30 DAY",
        "Description": "Gross alpha radioactivity, Thorium-230 curve, 30 day recount, water, filtered",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6134",
        "Identifier": "COMB7",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA, TH-230, WF, 72 HR",
        "Description": "Gross alpha radioactivity, Thorium-230 curve, count within 72 hours, water, filtered",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6135",
        "Identifier": "COMB9",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA, TH-230,WF,W\DATAPKG",
        "Description": "Gross alpha radioactivity, Thorium-230 curve, with data package, water, filtered",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4765",
        "Identifier": "CONTINUOUS DATA",
        "Context": "USDOI\USGS",
        "Name": "Guidelines and Standard Procedures for Continuous Water-Quality Monitors",
        "Description": "Guidelines and Standard Procedures for Continuous Water-Quality Monitors: Station Operation, Record Computation, and Data Reporting ~ USGS . Wagner, R.J., Boulger, R.W., Jr., Oblinger, C.J., and Smith, B.A.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\12111\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "888",
        "Identifier": "CP-85.01",
        "Context": "NCASI",
        "Name": "Chlorinated Phenolics in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "889",
        "Identifier": "CP-86.01",
        "Context": "NCASI",
        "Name": "Chlorinated Phenolics in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2368",
        "Identifier": "CR-01",
        "Context": "USEPA",
        "Name": "Chromium-51 in Water Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4758",
        "Identifier": "CSRS GW",
        "Context": "USDOI\USGS",
        "Name": "Computerized Stratified Random Site-Selection Approaches for Design of a Ground-Water-Quality Sampling Network",
        "Description": "Computerized Stratified Random Site-Selection Approaches for Design of a Ground-Water-Quality Sampling Network ~ USGS . Scott, Jonathon C.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11959\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5993",
        "Identifier": "CSWQ_WQ1.0MEC",
        "Context": "USDA\ARS",
        "Name": "CSWQ_WQ1.0MEC",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=CSWQ_WQ1.0MEC",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:10 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5987",
        "Identifier": "CSWQ_WQ1.1",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=CSWQ_WQ1.1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=PSWMRU_WQ2",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5995",
        "Identifier": "CSWQ_WQ2.0MEC",
        "Context": "USDA\ARS",
        "Name": "CSWQ_WQ2.0MEC",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=CSWQ_WQ2.0MEC",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:10 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5952",
        "Identifier": "CSWQ_WQ2.1",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=CSWQ_WQ2.1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=CSWQ_WQ2.1",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:37 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5953",
        "Identifier": "CSWQ_WQ3.0MEC",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=CSWQ_WQ3.0MEC",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=CSWQ_WQ3.0MEC",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:37 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5986",
        "Identifier": "CSWQ_WQ3.1",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=CSWQ_WQ3.1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ11",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5954",
        "Identifier": "CSWQ_WQ4.302",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=CSWQ_WQ4.302",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=CSWQ_WQ4.302",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5996",
        "Identifier": "CSWQ_WQ5.0MEC",
        "Context": "USDA\ARS",
        "Name": "CSWQ_WQ5.0MEC",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=CSWQ_WQ5.0MEC",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:10 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5994",
        "Identifier": "CSWQ_WQ5.1",
        "Context": "USDA\ARS",
        "Name": "CSWQ_WQ5.1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=CSWQ_WQ5.1",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:10 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5991",
        "Identifier": "CSWQ_WQ6.0MEC",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ11",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ11",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5990",
        "Identifier": "CSWQ_WQ6.1",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=CSWQ_WQ6.1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ11",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5989",
        "Identifier": "CSWQ_WQ7.1",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=CSWQ_WQ7.1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ07",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5955",
        "Identifier": "CSWQ_WQ7.1MEC",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=CSWQ_WQ7.1MEC",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=CSWQ_WQ7.1MEC",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2369",
        "Identifier": "CTM-001",
        "Context": "USEPA",
        "Name": "Determination of Butadiene Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2370",
        "Identifier": "CTM-002",
        "Context": "USEPA",
        "Name": "Determination of Particulate Matter",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2371",
        "Identifier": "CTM-004",
        "Context": "USEPA",
        "Name": "Determination of HCl Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2372",
        "Identifier": "CTM-005",
        "Context": "USEPA",
        "Name": "Determination of Condensable Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2373",
        "Identifier": "CTM-006",
        "Context": "USEPA",
        "Name": "Chromium Emissions from Electroplaters",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2374",
        "Identifier": "CTM-010",
        "Context": "USEPA",
        "Name": "Perchloroethylene of Wet Waste Materials",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2375",
        "Identifier": "CTM-011",
        "Context": "USEPA",
        "Name": "Determination of Halogenated Organics",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6136",
        "Identifier": "CV014",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA, TH-230,WF,W\DATAPKG",
        "Description": "Gross alpha radioactivity, Thorium-230 curve, with data package, water, filtered, pCi\L",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6137",
        "Identifier": "CV018",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA, U(NATURAL),WF,HS,LF",
        "Description": "Gross alpha, high solids (HS), FIL, U curve, lab filtered (LF)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770761",
        "Identifier": "CVAA Mercury",
        "Context": "PACE LABS",
        "Name": "CVAA Mercury",
        "Description": "https:\\www.pacelabs.com\assets\documents\Environmental\capabilities-2015.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-06-21T23:08:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2917",
        "Identifier": "CalCOFI",
        "Context": "CCE",
        "Name": "Augmented Cruises - Picoplankton and Bacteria: Abundance and Biomass",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-12-20T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770801",
        "Identifier": "Cow Bacteroidetes ID",
        "Context": "Source Molecular",
        "Name": "Cow Bacteroidetes ID",
        "Description": "Service determines the presence of Cattle Fecal Contamination.  Uses Bacteroidetes as the indicator organism. Results in as little as 3 working days. Client sends 500ml water samples. Uses PCR DNA analytical technology. Indicator organism.",
        "QualifierType": "",
        "URL": "https:\\sourcemolecular.com\cattle-cow\cowbacteroidetes\",
        "LastChangeDate": "2019-07-09T14:44:46 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4666",
        "Identifier": "D1067",
        "Context": "ASTM",
        "Name": "Acidity or Alkalinity of water by electrometric titration",
        "Description": "D1067 ~ ASTM . Acidity or Alkalinity of water by electrometric titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9698\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743074",
        "Identifier": "D1067",
        "Context": "ASTM (2011)",
        "Name": "Standard Test Methods for Acidity or Alkalinity of Water",
        "Description": "https:\\www.astm.org\DATABASE.CART\HISTORICAL\D1067-11.htm",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-11-27T15:29:41 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "515",
        "Identifier": "D1067(A)",
        "Context": "ASTM",
        "Name": "D1067 A  ~ Acidity or Alkalinity of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "516",
        "Identifier": "D1067(B)",
        "Context": "ASTM",
        "Name": "D1067 B  ~ Acidity or Alkalinity of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "517",
        "Identifier": "D1067(C)",
        "Context": "ASTM",
        "Name": "D1067 C  ~ Acidity or Alkalinity of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5679",
        "Identifier": "D1068 B***retired*** D1068(B)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D1068 B  ~ Iron in Water by GF-AAS",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "518",
        "Identifier": "D1068(A)",
        "Context": "ASTM",
        "Name": "D1068 A  ~ Iron in Water Using Direct FLAA",
        "Description": "D1068A ~ ASTM . Iron by Atomic Absorption, Direct",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5408\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "519",
        "Identifier": "D1068(B)",
        "Context": "ASTM",
        "Name": "D1068 B  ~ Iron in Water by Chelation and FLAA",
        "Description": "D1068 B ~ ASTM . Iron in Water by GF-AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9744\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "520",
        "Identifier": "D1068(C)",
        "Context": "ASTM",
        "Name": "D1068 C  ~ Iron in Water Using GFAA",
        "Description": "D1068C ~ ASTM . Iron by Atomic Absorption, Graphite Furnace",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5409\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "521",
        "Identifier": "D1068(D)",
        "Context": "ASTM",
        "Name": "D1068 D  ~ Iron in Water Using Photometry",
        "Description": "D1068D ~ ASTM . Iron by Photometric Bathophenanthroline",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5410\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5678",
        "Identifier": "D1068A***retired*** D1068(A)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D1068 A  ~ Iron by Atomic Absorption, Direct",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5680",
        "Identifier": "D1068C***retired*** D1068(C)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D1068 C  ~ Iron by Atomic Absorption, Graphite Furnace",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5681",
        "Identifier": "D1068D***retired*** D1068(D)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D1068 D  ~ Iron by Photometric Bathophenanthroline",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "522",
        "Identifier": "D1125(A)",
        "Context": "ASTM",
        "Name": "D1125 A  ~ Conductivity and Resistivity in Water",
        "Description": "D1125A ~ ASTM . Electrical Conductivity of Non-Flowing Water Samples",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4745\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "523",
        "Identifier": "D1125(B)",
        "Context": "ASTM",
        "Name": "D1125 B  ~ Conductivity and Resistivity in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5581",
        "Identifier": "D1125-82",
        "Context": "ASTM",
        "Name": "Electrical Conductivity of Non-Flowing Water Samples",
        "Description": "Not current version URL: https:\\www.nemi.gov\methods\method_summary\4745\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5582",
        "Identifier": "D1125-95",
        "Context": "ASTM",
        "Name": "Electrical Conductivity of Non-Flowing Water Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4745\",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "524",
        "Identifier": "D1126",
        "Context": "ASTM",
        "Name": "Hardness in Water",
        "Description": "D1126 ~ ASTM . Hardness in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4746\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5682",
        "Identifier": "D1179 A***retired*** D1179(A)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D1179 A  ~ Standard Test Methods for Fluoride Ion in Water",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5683",
        "Identifier": "D1179 B***retired*** D1179(B)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D1179 B  ~ Fluoride Ion in Water by Ion Selective Electrode",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "525",
        "Identifier": "D1179(A)",
        "Context": "ASTM",
        "Name": "D1179 A  ~ Fluoride Ion in Water Using Distillation",
        "Description": "D1179 A ~ ASTM . Fluoride Ion in Water by Distillation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9742\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "526",
        "Identifier": "D1179(B)",
        "Context": "ASTM",
        "Name": "D1179 B  ~ Fluoride Ion in Water Using ISE",
        "Description": "D1179 B ~ ASTM . Fluoride Ion in Water by Ion Selective Electrode",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9741\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "527",
        "Identifier": "D1246",
        "Context": "ASTM",
        "Name": "Bromide Ion in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4667",
        "Identifier": "D1246 C",
        "Context": "ASTM",
        "Name": "D1246 C ~ Bromide Ion in Water by Ion Selective Electrode",
        "Description": "D1246C \ D1246 C ~ ASTM . Bromide Ion in Water by Ion Selective Electrode",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9707\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "528",
        "Identifier": "D1252(A)",
        "Context": "ASTM",
        "Name": "D1252 A  ~ Chemical Oxygen Demand by Titration",
        "Description": "D1252 A ~ ASTM . COD, Macro, by Reflux Digestion and Titration (Test Method A)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9714\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "529",
        "Identifier": "D1252(B)",
        "Context": "ASTM",
        "Name": "D1252 B  ~ COD by Spectrophotometry",
        "Description": "D1252B ~ ASTM . COD, Micro, by Sealed Digestion and Spectrometry (Test Method B)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4747\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "530",
        "Identifier": "D1253",
        "Context": "ASTM",
        "Name": "Residual Chlorine in Water",
        "Description": "D1253 ~ ASTM . Residual Chlorine in Water by Direct Amperometric Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9719\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "531",
        "Identifier": "D1291",
        "Context": "ASTM",
        "Name": "Chlorine Requirement or Demand of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "532",
        "Identifier": "D1292",
        "Context": "ASTM",
        "Name": "Odor in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "533",
        "Identifier": "D1293(A)",
        "Context": "ASTM",
        "Name": "D1293 A  ~ pH of Water By Precise Lab Measurement",
        "Description": "D1293A ~ ASTM . pH: Method A: Precise Laboratory Measurement of pH",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4748\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "534",
        "Identifier": "D1293(B)",
        "Context": "ASTM",
        "Name": "D1293 B  ~ pH of Water By Routine Measurement",
        "Description": "D1293 B ~ ASTM . pH: Method A: Routine or Continuous Measurement of pH",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9743\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "535",
        "Identifier": "D1385",
        "Context": "ASTM",
        "Name": "Hydrazine in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5684",
        "Identifier": "D1426 A***retired*** D1426(A)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D1426 A  ~ Ammonia Nitrogen In Water by Direct Nesslerization",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5685",
        "Identifier": "D1426 B***retired*** D1426(B)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D1426 B  ~ Standard Test Methods for Ammonia Nitrogen In Water",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "536",
        "Identifier": "D1426(A)",
        "Context": "ASTM",
        "Name": "D1426 A  ~ Ammonia Nitrogen in Water by NESSLR",
        "Description": "D1426 A ~ ASTM . Ammonia Nitrogen In Water by Direct Nesslerization",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9700\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "537",
        "Identifier": "D1426(B)",
        "Context": "ASTM",
        "Name": "D1426 B  ~ Ammonia Nitrogen in Water by Ion Electrode",
        "Description": "D1426 B ~ ASTM . Ammonia Nitrogen In Water by Select Ion Electrode",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9701\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "538",
        "Identifier": "D1429(A)",
        "Context": "ASTM",
        "Name": "D1429 A  ~ Specific Gravity of Water by Pyncnometer",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "539",
        "Identifier": "D1429(B)",
        "Context": "ASTM",
        "Name": "D1429 B  ~ Specific Gravity of Water Using Balance",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "540",
        "Identifier": "D1429(C)",
        "Context": "ASTM",
        "Name": "D1429 C  ~ Specific Gravity of Water Using Flask",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "541",
        "Identifier": "D1429(D)",
        "Context": "ASTM",
        "Name": "D1429 D  ~ Specific Gravity of Water by Hydrometer",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4668",
        "Identifier": "D1452-07A",
        "Context": "ASTM",
        "Name": "D1452-07 A ~ Standard Practice for Soil Investigation and Sampling by Auger Borings",
        "Description": "D1452-07a ~ ASTM . Standard Practice for Soil Investigation and Sampling by Auger Borings",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10296\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6064",
        "Identifier": "D1481",
        "Context": "ASTM",
        "Name": "D1481 ~ ASTM; Standard Test Method for Density and Relative Density (Specific Gravity) of Viscous Materials by Lipkin Bicapillary Pycnometer",
        "Description": "https:\\store.astm.org\d1481-17.html",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2025-07-03T09:02:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "542",
        "Identifier": "D1498",
        "Context": "ASTM",
        "Name": "Oxidation-Reduction Potential for Water",
        "Description": "D1498 ~ ASTM . Redox Potential of Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5456\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "586848",
        "Identifier": "D1552",
        "Context": "ASTM",
        "Name": "Sulfur in Petroleum Products",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2011-12-07T12:23:34 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "543",
        "Identifier": "D1590",
        "Context": "ASTM",
        "Name": "Surface Tension of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "544",
        "Identifier": "D1607",
        "Context": "ASTM",
        "Name": "Nitrogen Dioxide in Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "545",
        "Identifier": "D1608",
        "Context": "ASTM",
        "Name": "Nitrogen Dioxide in Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5686",
        "Identifier": "D1687 A***retired*** D1687(A)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D1687 A  ~ Chromium in Water by Photometric Diphenyl- carbohydrazide",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5687",
        "Identifier": "D1687 B***retired*** D1687(B)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D1687 B  ~ Chromium in Water by Direct Atomic Absorption",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5688",
        "Identifier": "D1687 C***retired*** D1687(C)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D1687 C  ~ Standard Test Methods for Chromium in Water",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "546",
        "Identifier": "D1687(A)",
        "Context": "ASTM",
        "Name": "D1687 A  ~ Chromium VI in Water",
        "Description": "D1687 A ~ ASTM . Chromium in Water by Photometric Diphenyl- carbohydrazide",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9724\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "547",
        "Identifier": "D1687(B)",
        "Context": "ASTM",
        "Name": "D1687 B  ~ Chromium in Water By FLAA",
        "Description": "D1687 B ~ ASTM . Chromium in Water by Direct Atomic Absorption",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9725\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "548",
        "Identifier": "D1687(C)",
        "Context": "ASTM",
        "Name": "D1687 C  ~ Chromium in Water By GFAA",
        "Description": "D1687 C ~ ASTM . Chromium in Water by GF-AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9726\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5689",
        "Identifier": "D1688 A***retired*** D1688(A)",
        "Context": "ASTM",
        "Name": "DO NOT USE***Copper in Water by Direct Atomic Absorption",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5690",
        "Identifier": "D1688 B***retired*** D1688(B)",
        "Context": "ASTM",
        "Name": "DO NOT USE***Copper in Water by Chelation-Extraction\Atomic Absorption",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5691",
        "Identifier": "D1688 C***retired*** D3557(C)",
        "Context": "ASTM",
        "Name": "DO NOT USE***Standard Test Methods for Copper in Water",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "549",
        "Identifier": "D1688(A)",
        "Context": "ASTM",
        "Name": "D1688 A  ~ Copper in Water By FLAA",
        "Description": "D1688 A ~ ASTM . Copper in Water by Direct Atomic Absorption",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9733\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "550",
        "Identifier": "D1688(B)",
        "Context": "ASTM",
        "Name": "D1688 B  ~ Copper in Water By Chelation and FLAA",
        "Description": "D1688 B ~ ASTM . Copper in Water by Chelation-Extraction\Atomic Absorption",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9734\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "551",
        "Identifier": "D1688(C)",
        "Context": "ASTM",
        "Name": "D1688 C  ~ Copper in Water By GFAA",
        "Description": "D1688 C ~ ASTM . Copper in Water by GF-AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9735\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5692",
        "Identifier": "D1691 A***retired*** D1691(A)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D1691 A  ~ Standard Test Methods for Zinc in Water",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5693",
        "Identifier": "D1691 B***retired*** D1691(B)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D1691 B  ~ Standard Test Methods for Zinc in Water",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "552",
        "Identifier": "D1691(A)",
        "Context": "ASTM",
        "Name": "D1691 A  ~ Zinc in Water By FLAA",
        "Description": "D1691 A ~ ASTM . Zinc in Water by Direct Atomic Absorption",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9831\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "553",
        "Identifier": "D1691(B)",
        "Context": "ASTM",
        "Name": "D1691 B  ~ Zinc in Water by Chelation and FLAA",
        "Description": "D1691 B ~ ASTM . Zinc in Water by Chelation-Extraction\AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9832\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "554",
        "Identifier": "D1704",
        "Context": "ASTM",
        "Name": "Particulate Matter in Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "555",
        "Identifier": "D1783(A)",
        "Context": "ASTM",
        "Name": "D1783 A  ~ Phenolic Compounds in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "556",
        "Identifier": "D1783(B)",
        "Context": "ASTM",
        "Name": "D1783 B  ~ Phenolic Compounds in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5694",
        "Identifier": "D1886 A***retired*** D1886(A)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D1886 A  ~ Standard Test Methods for Nickel in Water graphite furnaces",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5695",
        "Identifier": "D1886 B***retired*** D1886(B)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D1886 B  ~ Standard Test Methods for Nickel in Water graphite furnaces",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5696",
        "Identifier": "D1886 C***retired*** D1886(C)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D1886 C  ~ Standard Test Methods for Nickel in Water graphite furnaces",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "557",
        "Identifier": "D1886(A)",
        "Context": "ASTM",
        "Name": "D1886 A  ~ Nickel in Water by FLAA",
        "Description": "D1886 A ~ ASTM . Nickel in Water by Direct AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9802\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "558",
        "Identifier": "D1886(B)",
        "Context": "ASTM",
        "Name": "D1886 B  ~ Nickel in Water by Chelation and FLAA",
        "Description": "D1886 B ~ ASTM . Nickel in Water by Chelation-Extraction AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9803\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "559",
        "Identifier": "D1886(C)",
        "Context": "ASTM",
        "Name": "D1886 C  ~ Nickel in Water by GFAA",
        "Description": "D1886 C ~ ASTM . Nickel in Water by GF-AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9804\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "560",
        "Identifier": "D1889",
        "Context": "ASTM",
        "Name": "Turbidity of Water",
        "Description": "D1889 ~ ASTM . Turbidity of Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5457\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "561",
        "Identifier": "D1890",
        "Context": "ASTM",
        "Name": "Beta Particle Radioactivity of Water",
        "Description": "D1890 ~ ASTM . Beta Activity in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5411\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "562",
        "Identifier": "D1941",
        "Context": "ASTM",
        "Name": "Open Channel Flow Measurement by Flume",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "563",
        "Identifier": "D1943",
        "Context": "ASTM",
        "Name": "Alpha Particle Radioactivity of Water",
        "Description": "D1943 ~ ASTM . Alpha Particle Radioactivity of Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4749\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6071",
        "Identifier": "D1945",
        "Context": "ASTM",
        "Name": "D1945 ~ ASTM; Natural Gas by Gas Chromatography",
        "Description": "https:\\store.astm.org\d1945-25.html",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-02-13T17:54:45 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6015",
        "Identifier": "D1946",
        "Context": "ASTM",
        "Name": "D1946 ~ ASTM; Reformed Gas by Gas Chromatography",
        "Description": "Standard Method for Analysis of Reformed Gas by Gas Chromatography Reference: https:\\www.astm.org\d1946-90r19.html",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2024-01-17T15:02:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743075",
        "Identifier": "D1976",
        "Context": "ASTM (2012)",
        "Name": "Standard Test Method for Elements in Water by Inductively-Coupled Argon Plasma Atomic Emission Spectroscopy",
        "Description": "https:\\www.astm.org\Standards\D1976.htm",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-11-27T15:29:42 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "564",
        "Identifier": "D1976",
        "Context": "ASTM",
        "Name": "Elements in Water by ICP",
        "Description": "D1976 ~ ASTM . Elements in Water by ICP-AES",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4750\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "565",
        "Identifier": "D2035",
        "Context": "ASTM",
        "Name": "Coagulation-Flocculation Test of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "566",
        "Identifier": "D2036(A)",
        "Context": "ASTM",
        "Name": "D2036 A  ~ Cyanides in Water After Distillation",
        "Description": "D2036A ~ ASTM . Cyanides, Total, after Distillation (Test Method A)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4751\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "567",
        "Identifier": "D2036(B)",
        "Context": "ASTM",
        "Name": "D2036 B  ~ Cyanides in Water by Colorimetry",
        "Description": "D2036 B ~ ASTM . Cyanides Amenable to Chlorination",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9738\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "568",
        "Identifier": "D2036(C)",
        "Context": "ASTM",
        "Name": "D2036 C  ~ Cyanides in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "569",
        "Identifier": "D2036(D)",
        "Context": "ASTM",
        "Name": "D2036 D  ~ Cyanides without Distillation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5697",
        "Identifier": "D2036A***retired*** D2036(A)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D2036 A  ~ Standard Test Methods for Cyanides in Water",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "570",
        "Identifier": "D2186(A)",
        "Context": "ASTM",
        "Name": "D2186 A  ~ Deposit-Forming Impurities in Steam",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "571",
        "Identifier": "D2186(B)",
        "Context": "ASTM",
        "Name": "D2186 B  ~ Deposit-Forming Impurities in Steam",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "572",
        "Identifier": "D2186(C)",
        "Context": "ASTM",
        "Name": "D2186 C  ~ Deposit-Forming Impurities in Steam",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "573",
        "Identifier": "D2186(D)",
        "Context": "ASTM",
        "Name": "D2186 D  ~ Deposit-Forming Impurities in Steam",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5306",
        "Identifier": "D2216",
        "Context": "ASTM",
        "Name": "Standard Test Methods for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass",
        "Description": "http:\\www.astm.org\Standards\D2216.htm",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-04-30T10:02:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "574",
        "Identifier": "D2330",
        "Context": "ASTM",
        "Name": "Methylene Blue Active Substances",
        "Description": "D2330 ~ ASTM . Methylene Blue Active Substances in Water by",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9828\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "575",
        "Identifier": "D2332",
        "Context": "ASTM",
        "Name": "Water-formed Deposits by XRF",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "576",
        "Identifier": "D2334(A)",
        "Context": "ASTM",
        "Name": "D2334 A  ~ Radioactive Iodine - Ion-Exchange",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "577",
        "Identifier": "D2334(B)",
        "Context": "ASTM",
        "Name": "D2334 B  ~ Radioactive Iodine - Distillation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "578",
        "Identifier": "D2334(C)",
        "Context": "ASTM",
        "Name": "D2334 C  ~ Radioactive Iodine - Extraction",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "579",
        "Identifier": "D2460",
        "Context": "ASTM",
        "Name": "Radionuclides of Radium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "580",
        "Identifier": "D2476",
        "Context": "ASTM",
        "Name": "Tritium in Water by Liquid Scintillation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "581",
        "Identifier": "D2579",
        "Context": "ASTM",
        "Name": "Total Organic Carbon in Water",
        "Description": "D2579 ~ ASTM . Total Organic Carbon in Water by TOC analyzer",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9810\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "582",
        "Identifier": "D2580",
        "Context": "ASTM",
        "Name": "Phenols in Water by Gas-Liquid Chromatograph",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "583",
        "Identifier": "D2688(A)",
        "Context": "ASTM",
        "Name": "D2688 A  ~ Corrosivity of Water Using Metal Coupons",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "584",
        "Identifier": "D2688(B)",
        "Context": "ASTM",
        "Name": "D2688 B  ~ Corrosivity of Water Using Pipe Inserts",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "585",
        "Identifier": "D2776",
        "Context": "ASTM",
        "Name": "Corrosivity",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "586",
        "Identifier": "D2791",
        "Context": "ASTM",
        "Name": "Sodium in Water by ISE-Na",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "587",
        "Identifier": "D2820",
        "Context": "ASTM",
        "Name": "C1 - C5 Hydrocarbons by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "588",
        "Identifier": "D2907(A)",
        "Context": "ASTM",
        "Name": "D2907 A  ~ Uranium in Water by Direct Fluorometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "589",
        "Identifier": "D2907(B)",
        "Context": "ASTM",
        "Name": "D2907 B  ~ Uranium in Water by Extraction & Fluorometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "590",
        "Identifier": "D2908",
        "Context": "ASTM",
        "Name": "Volatile Organics in Water by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "591",
        "Identifier": "D2914",
        "Context": "ASTM",
        "Name": "Sulfur Dioxide in Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "762512",
        "Identifier": "D2937",
        "Context": "ASTM",
        "Name": "Standard Test Method for Density of Soil in Place by the Drive-Cylinder Method",
        "Description": "https:\\www.astm.org\Standards\D2937.htm",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-06-21T13:00:27 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4669",
        "Identifier": "D2972",
        "Context": "ASTM",
        "Name": "Total Arsenic in Water by AA gaseous hydride",
        "Description": "D2972 ~ ASTM . Total Arsenic in Water by AA gaseous hydride",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9704\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "592",
        "Identifier": "D2972(A)",
        "Context": "ASTM",
        "Name": "D2972 A  ~ Arsenic in Water Using Spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "593",
        "Identifier": "D2972(B)",
        "Context": "ASTM",
        "Name": "D2972 B  ~ Arsenic in Water Using HYDAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "594",
        "Identifier": "D2972(C)",
        "Context": "ASTM",
        "Name": "D2972 C  ~ Arsenic in Water by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3194",
        "Identifier": "D2974(A)",
        "Context": "ASTM",
        "Name": "D2974 A  ~ Moisture, Ash, and Organic Matter of Peat and Other Organic Soils",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2010-02-26T15:19:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "595",
        "Identifier": "D3082",
        "Context": "ASTM",
        "Name": "Boron in Water Using Spectrometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "596",
        "Identifier": "D3084",
        "Context": "ASTM",
        "Name": "Alpha Spectrometry of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "597",
        "Identifier": "D3086",
        "Context": "ASTM",
        "Name": "Organochlorine Pesticides in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "598",
        "Identifier": "D3113(A)",
        "Context": "ASTM",
        "Name": "D3113 A  ~ Sodium Salts of EDTA in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "599",
        "Identifier": "D3113(B)",
        "Context": "ASTM",
        "Name": "D3113 B  ~ Sodium Salts of EDTA in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "795144",
        "Identifier": "D3120",
        "Context": "ASTM",
        "Name": "Standard Test Method for Trace Quantities of Sulfur in Light Liquid Petroleum Hydrocarbons by Oxidative Microcoulometry",
        "Description": "D3120 ~ ASTM . This test method is used to determine the concentration of sulfur in light liquid hydrocarbons, gasoline, and diesels and their additives, where such concentrations of sulfur can be detrimental to their production, performance, and use. The measurement of sulfur in the production and final product of gasoline and diesel is required for both regulatory purposes and to ensure maximum life expectancy of catalytic converters used in the automotive industry.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-05-22T16:05:03 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "600",
        "Identifier": "D3162",
        "Context": "ASTM",
        "Name": "Carbon Monoxide in Atmosphere - NDIR",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "778801",
        "Identifier": "D3173",
        "Context": "ASTM",
        "Name": "Moisture in the Analysis Sample of Coal and Coke",
        "Description": "D3173 ~ Moisture in the Analysis Sample of Coal and Coke",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-03-03T12:57:56 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "601",
        "Identifier": "D3223",
        "Context": "ASTM",
        "Name": "Total Mercury in Water by CVAA",
        "Description": "D3223 ~ ASTM . Total Mercury in Water by CV-AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9765\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "602",
        "Identifier": "D3266",
        "Context": "ASTM",
        "Name": "Fluorides in the Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "603",
        "Identifier": "D3267",
        "Context": "ASTM",
        "Name": "Fluorides in the Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "604",
        "Identifier": "D3268",
        "Context": "ASTM",
        "Name": "Fluorides in the Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "605",
        "Identifier": "D3269(ISE)",
        "Context": "ASTM",
        "Name": "D3269 ISE  ~ Fluorides in Plants\Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "606",
        "Identifier": "D3269(SPEC)",
        "Context": "ASTM",
        "Name": "D3269 SPEC  ~ Fluorides in Plants\Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "607",
        "Identifier": "D3269(TITR)",
        "Context": "ASTM",
        "Name": "D3269 TITR  ~ Fluorides in Plants\Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "608",
        "Identifier": "D3270",
        "Context": "ASTM",
        "Name": "Fluorides in Plants\Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4603",
        "Identifier": "D3278",
        "Context": "ASTM",
        "Name": "Standard Test Method for Flash Point of Liquids by Small Scale Closed Cup Apparatus",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-08-09T14:29:54 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "609",
        "Identifier": "D3327",
        "Context": "ASTM",
        "Name": "N, S, Ni and V in Waterborne Oils",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "610",
        "Identifier": "D3328(A)",
        "Context": "ASTM",
        "Name": "D3328 A  ~ Waterborne Petroleum Oils by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "611",
        "Identifier": "D3328(B)",
        "Context": "ASTM",
        "Name": "D3328 B  ~ Waterborne Petroleum Oils by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "612",
        "Identifier": "D3352",
        "Context": "ASTM",
        "Name": "Strontium Ion in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "613",
        "Identifier": "D3371",
        "Context": "ASTM",
        "Name": "Nitriles in Aqueous Solution",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "614",
        "Identifier": "D3372",
        "Context": "ASTM",
        "Name": "Molybdenum by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "615",
        "Identifier": "D3373",
        "Context": "ASTM",
        "Name": "Vanadium in Water by GFAA",
        "Description": "D3373 ~ ASTM . Vanadium in Water by GF-AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9830\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "616",
        "Identifier": "D3414",
        "Context": "ASTM",
        "Name": "Waterborne Petroleum Oils by IR",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "617",
        "Identifier": "D3415",
        "Context": "ASTM",
        "Name": "Waterborne Oils by GC, IRSPEC or FLSPEC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "618",
        "Identifier": "D3416",
        "Context": "ASTM",
        "Name": "Carbon Monoxide in Atmosphere - GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "619",
        "Identifier": "D3442",
        "Context": "ASTM",
        "Name": "Tritium in Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "620",
        "Identifier": "D3454",
        "Context": "ASTM",
        "Name": "Radium-226 in Water by Radon Scintillation",
        "Description": "D3454 ~ ASTM . Radium-226 in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4753\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "621",
        "Identifier": "D3478",
        "Context": "ASTM",
        "Name": "Chlorinated Phenoxy-Acid Herbicides",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "622",
        "Identifier": "D3534(ECD)",
        "Context": "ASTM",
        "Name": "D3534 ECD  ~ PCBs in Water by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "623",
        "Identifier": "D3534(ELCD)",
        "Context": "ASTM",
        "Name": "D3534 ELCD  ~ PCBs in Water by Gas Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5699",
        "Identifier": "D3557 B***retired*** D3557(B)",
        "Context": "ASTM",
        "Name": "DO NOT USE***Standard Test Methods for Cadmium in Water",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5700",
        "Identifier": "D3557 C***retired*** D3557(C)",
        "Context": "ASTM",
        "Name": "DO NOT USE***Cadmium in Water by Differential Pulse\Anodic Stripping Volt",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5701",
        "Identifier": "D3557 D***retired*** D3557(D)",
        "Context": "ASTM",
        "Name": "DO NOT USE***Standard Test Methods for Cadmium in Water",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "624",
        "Identifier": "D3557(A)",
        "Context": "ASTM",
        "Name": "D3557 A  ~ Cadmium in Water by FLAA",
        "Description": "D3557A ~ ASTM . Cadmium, Method A: Atomic Absorption, Direct",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4754\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "625",
        "Identifier": "D3557(B)",
        "Context": "ASTM",
        "Name": "D3557 B  ~ Cadmium in Water by Chelation and FLAA",
        "Description": "D3557 B ~ ASTM . Cadmium in Water by AA, Chelation-Extraction",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9708\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "626",
        "Identifier": "D3557(C)",
        "Context": "ASTM",
        "Name": "D3557 C  ~ Cadmium in Water by Polarography",
        "Description": "D3557 C ~ ASTM . Cadmium in Water by Differential Pulse\Anodic Stripping Voltammetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9709\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "627",
        "Identifier": "D3557(D)",
        "Context": "ASTM",
        "Name": "D3557 D  ~ Cadmium in Water by GFAA",
        "Description": "D3557 D ~ ASTM . Cadmium in Water by GF-AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9710\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5698",
        "Identifier": "D3557A***retired*** D3557(A)",
        "Context": "ASTM",
        "Name": "DO NOT USE***Cadmium, Method A: Atomic Absorption, Direct",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5702",
        "Identifier": "D3558 A***retired*** D3558(A)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D3558 A  ~ Cobalt in Water by Direct AA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5703",
        "Identifier": "D3558 B***retired*** D3558(B)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D3558 B  ~ Cobalt in Water by Chelation-Extraction\AA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5704",
        "Identifier": "D3558 C***retired*** D3558(C)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D3558 C  ~ Cobalt in Water by GF-AAS",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "628",
        "Identifier": "D3558(A)",
        "Context": "ASTM",
        "Name": "D3558 A  ~ Cobalt in Water by FLAA",
        "Description": "D3558 A ~ ASTM . Cobalt in Water by Direct AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9727\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "629",
        "Identifier": "D3558(B)",
        "Context": "ASTM",
        "Name": "D3558 B  ~ Cobalt in Water by Chelation and FLAA",
        "Description": "D3558 B ~ ASTM . Cobalt in Water by Chelation-Extraction\AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9728\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "630",
        "Identifier": "D3558(C)",
        "Context": "ASTM",
        "Name": "D3558 C  ~ Cobalt in Water by GFAA",
        "Description": "D3558 C ~ ASTM . Cobalt in Water by GF-AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9729\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5705",
        "Identifier": "D3559 A***retired*** D3559(A)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D3559 A  ~ Standard Test Methods for Lead in Water",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5706",
        "Identifier": "D3559 B***retired*** D3559(B)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D3559 B  ~ Lead in Water by Chelation-Extraction\AA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5707",
        "Identifier": "D3559 C***retired*** D3559(C)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D3559 C  ~ Standard Test Methods for Lead in Water, Differential Pulse Anodic Stripping Voltammetry",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5708",
        "Identifier": "D3559 D***retired*** D3559(D)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D3559 D  ~ Lead in Water by GF-AAS",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "631",
        "Identifier": "D3559(A)",
        "Context": "ASTM",
        "Name": "D3559 A  ~ Lead in Water by FLAA",
        "Description": "D3559 A ~ ASTM . Lead in Water by Direct AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9750\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "632",
        "Identifier": "D3559(B)",
        "Context": "ASTM",
        "Name": "D3559 B  ~ Lead in Water by Chelation and FLAA",
        "Description": "D3559 B ~ ASTM . Lead in Water by Chelation-Extraction\AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9751\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "633",
        "Identifier": "D3559(C)",
        "Context": "ASTM",
        "Name": "D3559 C  ~ Lead in Water by Polarography",
        "Description": "D3559 C ~ ASTM . Lead in Water by Differential Pulse Anodic Stripping Voltammetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9753\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "634",
        "Identifier": "D3559(D)",
        "Context": "ASTM",
        "Name": "D3559 D  ~ Lead in Water by GFAA",
        "Description": "D3559 D ~ ASTM . Lead in Water by GF-AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9752\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "635",
        "Identifier": "D3561",
        "Context": "ASTM",
        "Name": "Lithium, Potassium and Sodium",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "636",
        "Identifier": "D3590(A)",
        "Context": "ASTM",
        "Name": "D3590 A  ~ TKN by Ion Selective Electrode",
        "Description": "D3590 A ~ ASTM . Total Kjeldahl Nitrogen in Water by Manual Digestion\Distillation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9748\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "637",
        "Identifier": "D3590(B)",
        "Context": "ASTM",
        "Name": "D3590 B  ~ TKN by AutoAnalyzer",
        "Description": "D3590 B ~ ASTM . Total Kjeldahl Nitrogen in Water by Semiautomated Colorimetric Bertholt",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9749\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "638",
        "Identifier": "D3608",
        "Context": "ASTM",
        "Name": "Nitrogen Oxides in Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4670",
        "Identifier": "D3645",
        "Context": "ASTM",
        "Name": "Beryllium in Water by AAS",
        "Description": "D3645 ~ ASTM . Beryllium in Water by AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9706\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "639",
        "Identifier": "D3645(A)",
        "Context": "ASTM",
        "Name": "D3645 A  ~ Beryllium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "640",
        "Identifier": "D3645(B)",
        "Context": "ASTM",
        "Name": "D3645 B  ~ Beryllium in Water by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "641",
        "Identifier": "D3648(A)",
        "Context": "ASTM",
        "Name": "D3648 A  ~ Measurement of Radioactivity, Alpha",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "642",
        "Identifier": "D3648(B)",
        "Context": "ASTM",
        "Name": "D3648 B  ~ Measurement of Radioactivity, Beta",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "643",
        "Identifier": "D3648(C)",
        "Context": "ASTM",
        "Name": "D3648 C  ~ Measurement of Radioactivity, Gamma",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "644",
        "Identifier": "D3649",
        "Context": "ASTM",
        "Name": "High Resolution Gamma-Ray Spectrometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "645",
        "Identifier": "D3650",
        "Context": "ASTM",
        "Name": "Waterborne Petroleum Oil by Fluorescence",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "646",
        "Identifier": "D3651",
        "Context": "ASTM",
        "Name": "Barium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "647",
        "Identifier": "D3686",
        "Context": "ASTM",
        "Name": "Charcoal Tube Adsorption of Organic Vapors",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "648",
        "Identifier": "D3695",
        "Context": "ASTM",
        "Name": "Volatile Alcohols in Water by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "649",
        "Identifier": "D3697",
        "Context": "ASTM",
        "Name": "Antimony in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743089",
        "Identifier": "D3731",
        "Context": "ASTM (1987)",
        "Name": "Analysis of Chlorophyll in Periphyton and Plankton",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-12-05T15:38:16 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5285",
        "Identifier": "D3731-79",
        "Context": "ASTM",
        "Name": "Analysis of Chlorophyll in Periphyton and Plankton",
        "Description": "ASTM-WATER Post 31, ASTM Designation D3731-79, pages 1079-1083, \"The status of Methods for the Analysis of Chlorophyll in Periphyton and Plankton\": Weber, C.I., L.A. Fay, G.B. Collins, D. Rathke, J. Towbin, Env. and Plankton\": Weber, C.I., L.A. Fay, G.B. Collins, D. Rathke, J. Towbin, Monitoring and Support Laboratory, U.S. EPA, Cincinnati, Ohio.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-12-09T07:55:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "650",
        "Identifier": "D3824(A)",
        "Context": "ASTM",
        "Name": "D3824 A  ~ Ambient NOx by Chemiluminescence",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "651",
        "Identifier": "D3824(B)",
        "Context": "ASTM",
        "Name": "D3824 B  ~ Workplace NOx by Chemiluminescence",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4671",
        "Identifier": "D3856",
        "Context": "ASTM",
        "Name": "Good Laboratory Practices",
        "Description": "D3856 ~ ASTM . Good Laboratory Practices",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5460\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "652",
        "Identifier": "D3857",
        "Context": "ASTM",
        "Name": "Water Velocity in Open Channels",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "653",
        "Identifier": "D3858",
        "Context": "ASTM",
        "Name": "Open-Channel Flow Measurement by Area",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5709",
        "Identifier": "D3859 A***retired*** D3859(A)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D3859 A  ~ Selenium in Water by Gaseous Hydride AAS",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5710",
        "Identifier": "D3859 B***retired*** D3859(B)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D3859 B  ~ Selenium in Water by GF-AAS",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "654",
        "Identifier": "D3859(A)",
        "Context": "ASTM",
        "Name": "D3859 A  ~ Selenium in Water by HYDAA",
        "Description": "D3859 A ~ ASTM . Selenium in Water by Gaseous Hydride AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9822\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "655",
        "Identifier": "D3859(B)",
        "Context": "ASTM",
        "Name": "D3859 B  ~ Selenium in Water by GFAA",
        "Description": "D3859 B ~ ASTM . Selenium in Water by GF-AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9821\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "656",
        "Identifier": "D3865",
        "Context": "ASTM",
        "Name": "Plutonium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "657",
        "Identifier": "D3866(A)",
        "Context": "ASTM",
        "Name": "D3866 A  ~ Silver in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "658",
        "Identifier": "D3866(B)",
        "Context": "ASTM",
        "Name": "D3866 B  ~ Silver in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "659",
        "Identifier": "D3866(C)",
        "Context": "ASTM",
        "Name": "D3866 C  ~ Silver in Water by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4672",
        "Identifier": "D3867",
        "Context": "ASTM",
        "Name": "Nitrate-Nitrite in Water by Automated Cadmium Reduction",
        "Description": "D3867 ~ ASTM . Nitrate-Nitrite in Water by Automated Cadmium Reduction",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4755\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5711",
        "Identifier": "D3867 B***retired*** D3867(B)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D3867 B  ~ Standard Test Methods for Nitrite-Nitrate in Water",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "660",
        "Identifier": "D3867(A)",
        "Context": "ASTM",
        "Name": "D3867 A  ~ Nitrite-Nitrate Automated Cd Reduction",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "661",
        "Identifier": "D3867(B)",
        "Context": "ASTM",
        "Name": "D3867 B  ~ Nitrite-Nitrate by Manual Cd Reduction",
        "Description": "D3867 B ~ ASTM . Nitrite-Nitrate in Water by Manual Cadmium Reduction",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9809\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5259",
        "Identifier": "D3867-04",
        "Context": "ASTM",
        "Name": "D3867-04 ~ Standard Test Methods for Nitrite-Nitrate in Water",
        "Description": "http:\\portal.astm.org\Standards\HISTORICAL\D3867-04.htm",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-04-01T08:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "662",
        "Identifier": "D3868",
        "Context": "ASTM",
        "Name": "Fluoride Ions in Saline Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "663",
        "Identifier": "D3869(A)",
        "Context": "ASTM",
        "Name": "D3869 A  ~ Iodide and Bromide in Saline Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "664",
        "Identifier": "D3869(B)",
        "Context": "ASTM",
        "Name": "D3869 B  ~ Iodide in Saline Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "665",
        "Identifier": "D3869(C)",
        "Context": "ASTM",
        "Name": "D3869 C  ~ Iodide in Saline Water by ISE-I",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "666",
        "Identifier": "D3869(D)",
        "Context": "ASTM",
        "Name": "D3869 D  ~ Bromide in Saline Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "667",
        "Identifier": "D3871",
        "Context": "ASTM",
        "Name": "Purgeable Organics in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "668",
        "Identifier": "D3875",
        "Context": "ASTM",
        "Name": "Alkalinity in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "669",
        "Identifier": "D3919",
        "Context": "ASTM",
        "Name": "Trace Elements in Water Using GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "670",
        "Identifier": "D3920",
        "Context": "ASTM",
        "Name": "Strontium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "671",
        "Identifier": "D3921",
        "Context": "ASTM",
        "Name": "Oil and Grease and Petroleum Hydrocarbons",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "672",
        "Identifier": "D3972",
        "Context": "ASTM",
        "Name": "Uranium by Radiochemistry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "673",
        "Identifier": "D3973",
        "Context": "ASTM",
        "Name": "Halogenated Hydrocarbons in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "674",
        "Identifier": "D3977",
        "Context": "ASTM",
        "Name": "Suspended-Sediment in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "675",
        "Identifier": "D3986",
        "Context": "ASTM",
        "Name": "Barium in Water by DCAPS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "676",
        "Identifier": "D4012",
        "Context": "ASTM",
        "Name": "ATP Content of Microorganisms in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "677",
        "Identifier": "D4107",
        "Context": "ASTM",
        "Name": "Tritium in Drinking Water",
        "Description": "D4107 ~ ASTM . Tritium in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5412\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "678",
        "Identifier": "D4128",
        "Context": "ASTM",
        "Name": "Organic Compounds in Water by GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "679",
        "Identifier": "D4129",
        "Context": "ASTM",
        "Name": "Total Carbon and Organic Carbon in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "680",
        "Identifier": "D4130",
        "Context": "ASTM",
        "Name": "Sulfate Ion in Water by Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "681",
        "Identifier": "D4165",
        "Context": "ASTM",
        "Name": "Cyanogen Chloride in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "682",
        "Identifier": "D4183(A)",
        "Context": "ASTM",
        "Name": "D4183 A  ~ Total Recoverable Organic Phosphorus",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "683",
        "Identifier": "D4183(B)",
        "Context": "ASTM",
        "Name": "D4183 B  ~ Total Recoverable Organic Phosphorus",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "684",
        "Identifier": "D4185",
        "Context": "ASTM",
        "Name": "Metals in Workplace Atmosphere by AAS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "685",
        "Identifier": "D4189",
        "Context": "ASTM",
        "Name": "Silt Density Index of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "686",
        "Identifier": "D4190",
        "Context": "ASTM",
        "Name": "Metals by Argon Emission Spectroscopy",
        "Description": "D4190 ~ ASTM . Elements in Water by Direct-Current Argon Plasma Atomic Emission Spectroscopy",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9699\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "687",
        "Identifier": "D4191",
        "Context": "ASTM",
        "Name": "Sodium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "688",
        "Identifier": "D4192",
        "Context": "ASTM",
        "Name": "Potassium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "689",
        "Identifier": "D4193",
        "Context": "ASTM",
        "Name": "Thiocyanate in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "690",
        "Identifier": "D4201",
        "Context": "ASTM",
        "Name": "Coliphages in Water by Counting",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "691",
        "Identifier": "D422",
        "Context": "ASTM",
        "Name": "Particle-Size Analysis of Soils",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "692",
        "Identifier": "D4240",
        "Context": "ASTM",
        "Name": "Asbestos in Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "693",
        "Identifier": "D4249",
        "Context": "ASTM",
        "Name": "Enumeration of Candida albicans in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "694",
        "Identifier": "D4254",
        "Context": "ASTM",
        "Name": "Index Density and Unit Weight of Soils",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "695",
        "Identifier": "D4281(A)",
        "Context": "ASTM",
        "Name": "D4281 A  ~ Oil and Grease by Liquid-Liquid Extraction",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "696",
        "Identifier": "D4281(B)",
        "Context": "ASTM",
        "Name": "D4281 B  ~ Oil and Grease by Soxhlet Extraction",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "697",
        "Identifier": "D4282",
        "Context": "ASTM",
        "Name": "Free Cyanide in Water by Microdiffusion",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6052",
        "Identifier": "D4318",
        "Context": "ASTM",
        "Name": "D4318 ~ ASTM; Liquid Limit, Plastic Limit, and Plasticity Index of Soils",
        "Description": "Determination of the liquid limit, plastic limit, and the plasticity index of soils; https:\\www.astm.org\d4318-17e01.html",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2024-09-18T15:28:28 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "698",
        "Identifier": "D4323",
        "Context": "ASTM",
        "Name": "Hydrogen Sulfide in Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "699",
        "Identifier": "D4327",
        "Context": "ASTM",
        "Name": "Anions in Water by Ion Chromatography",
        "Description": "D4327 ~ ASTM . Anions in Water by Ion Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4756\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "700",
        "Identifier": "D4374",
        "Context": "ASTM",
        "Name": "Cyanide in Water by Automated Methods",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "701",
        "Identifier": "D4382",
        "Context": "ASTM",
        "Name": "Barium in Water by GFAA",
        "Description": "D4382 ~ ASTM . Barium in Water by GF-AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9705\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "702",
        "Identifier": "D4408",
        "Context": "ASTM",
        "Name": "Open-Channel Flow by Acoustic Means",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "703",
        "Identifier": "D4409",
        "Context": "ASTM",
        "Name": "Open-Channel Flow by RECM",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "704",
        "Identifier": "D4412",
        "Context": "ASTM",
        "Name": "Sulfate-Reducing Bacteria",
        "Description": "D4412 ~ ASTM . Sulfate-reducing Bacteria in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5414\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "705",
        "Identifier": "D4413",
        "Context": "ASTM",
        "Name": "Ethylene Oxide in Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6065",
        "Identifier": "D445",
        "Context": "ASTM",
        "Name": "D445 ~ ASTM; Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)",
        "Description": "https:\\store.astm.org\d0445-24.html",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2025-07-03T09:02:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "706",
        "Identifier": "D4454",
        "Context": "ASTM",
        "Name": "Total and Respiring Bacteria",
        "Description": "D4454 ~ ASTM . Respiring Bacteria in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5415\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "707",
        "Identifier": "D4455",
        "Context": "ASTM",
        "Name": "Aquatic Bacteria by Epifluorescence",
        "Description": "D4455 ~ ASTM . Aquatic Bacteria by Epifluoresence Microscopy",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5416\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "708",
        "Identifier": "D4458",
        "Context": "ASTM",
        "Name": "Chloride Ions in Saline Waters",
        "Description": "D4458 ~ ASTM . Chloride in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5417\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "709",
        "Identifier": "D4478(A)",
        "Context": "ASTM",
        "Name": "D4478 A  ~ Immediate Oxygen Uptake",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "710",
        "Identifier": "D4478(B)",
        "Context": "ASTM",
        "Name": "D4478 B  ~ Total Oxygen Uptake",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "711",
        "Identifier": "D4490",
        "Context": "ASTM",
        "Name": "Gases\Vapors by Detector Tubes",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "712",
        "Identifier": "D4517",
        "Context": "ASTM",
        "Name": "Silica in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "713",
        "Identifier": "D4657",
        "Context": "ASTM",
        "Name": "PAHs in Water by HPLC\UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "714",
        "Identifier": "D4658",
        "Context": "ASTM",
        "Name": "Sulfide Ion in Water by ISE",
        "Description": "D4658 ~ ASTM . Sulfide in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5418\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "715",
        "Identifier": "D4691",
        "Context": "ASTM",
        "Name": "Elements in Water Using FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "716",
        "Identifier": "D4744",
        "Context": "ASTM",
        "Name": "Organic Halides in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "717",
        "Identifier": "D4763",
        "Context": "ASTM",
        "Name": "Organics by Fluorescence Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "718",
        "Identifier": "D4765",
        "Context": "ASTM",
        "Name": "Fluorides in the Workplace Atmospheres",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "719",
        "Identifier": "D4766",
        "Context": "ASTM",
        "Name": "Vinyl Chloride in Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "720",
        "Identifier": "D4779",
        "Context": "ASTM",
        "Name": "Total, Organic and Inorganic Carbon",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "721",
        "Identifier": "D4785",
        "Context": "ASTM",
        "Name": "Low Level Iodine-131 in Water",
        "Description": "D4785 ~ ASTM . Low-Level Iodine-131 in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5419\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "722",
        "Identifier": "D4839",
        "Context": "ASTM",
        "Name": "Total Carbon and Organic Carbon in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "723",
        "Identifier": "D4856",
        "Context": "ASTM",
        "Name": "Sulfuric Acid Mist in Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "724",
        "Identifier": "D4861",
        "Context": "ASTM",
        "Name": "Pesticides and PCBs",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "725",
        "Identifier": "D4913",
        "Context": "ASTM",
        "Name": "Hydrogen Sulfide in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "726",
        "Identifier": "D4922",
        "Context": "ASTM",
        "Name": "Radioactive Iron in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "727",
        "Identifier": "D4947",
        "Context": "ASTM",
        "Name": "Chlordane and Heptachlor Residues",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "763127",
        "Identifier": "D4959",
        "Context": "ASTM",
        "Name": "Water Content of Soil by Direct Heating",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-10-31T13:33:26 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "728",
        "Identifier": "D4962",
        "Context": "ASTM",
        "Name": "NaI(Tl) Gamma-Ray Spectrometry of Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "729",
        "Identifier": "D4978(A)",
        "Context": "ASTM",
        "Name": "D4978 A  ~ Sulfides in Wastes - Lead Acetate Paper",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "730",
        "Identifier": "D4978(B)",
        "Context": "ASTM",
        "Name": "D4978 B  ~ Sulfides in Wastes - Gas Tube",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "731",
        "Identifier": "D4980(A)",
        "Context": "ASTM",
        "Name": "D4980 A  ~ pH in Waste - pH Paper",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "732",
        "Identifier": "D4980(B)",
        "Context": "ASTM",
        "Name": "D4980 B  ~ pH in Waste - pH Meter",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "733",
        "Identifier": "D4983",
        "Context": "ASTM",
        "Name": "Volatile Amines in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "734",
        "Identifier": "D4994(A)",
        "Context": "ASTM",
        "Name": "D4994 A  ~ Recovery of Viruses by Adsorption",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "735",
        "Identifier": "D4994(B)",
        "Context": "ASTM",
        "Name": "D4994 B  ~ Recovery of Viruses by Sonication",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "736",
        "Identifier": "D5014",
        "Context": "ASTM",
        "Name": "Formaldehyde - Indoor Air, MBTH",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "737",
        "Identifier": "D5015",
        "Context": "ASTM",
        "Name": "pH of Atmosphere",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "738",
        "Identifier": "D5037",
        "Context": "ASTM",
        "Name": "Waterborne Petroleum Oils by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "739",
        "Identifier": "D5049(A)",
        "Context": "ASTM",
        "Name": "D5049 A  ~ Cyanides in Waste - Chloramine T",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "740",
        "Identifier": "D5049(B)",
        "Context": "ASTM",
        "Name": "D5049 B  ~ Cyanides in Waste - Prussian Blue",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "741",
        "Identifier": "D5049(C)",
        "Context": "ASTM",
        "Name": "D5049 C  ~ Cyanides in Waste - Cyantesmo Paper",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "742",
        "Identifier": "D5049(D)",
        "Context": "ASTM",
        "Name": "D5049 D  ~ Cyanides in Waste - Gas Detector Tube",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6068",
        "Identifier": "D5057",
        "Context": "ASTM",
        "Name": "D5057 ~ ASTM; Apparent Specific Gravity and Bulk Density of Waste",
        "Description": "https:\\store.astm.org\d5057-17.html",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2025-07-22T16:23:37 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743",
        "Identifier": "D5072",
        "Context": "ASTM",
        "Name": "Radon in Drinking Water",
        "Description": "D5072 ~ ASTM . Radon in Drinking Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5422\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "744",
        "Identifier": "D5075",
        "Context": "ASTM",
        "Name": "Nicotine in Indoor Air - GC\NPD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "745",
        "Identifier": "D5084",
        "Context": "ASTM",
        "Name": "Hydraulic Conductivity",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "746",
        "Identifier": "D5085",
        "Context": "ASTM",
        "Name": "Chloride, Nitrate and Sulfate",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "747",
        "Identifier": "D5086",
        "Context": "ASTM",
        "Name": "Ca, Mg, K and Na in Atmospheric Wet Dep.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "748",
        "Identifier": "D5089",
        "Context": "ASTM",
        "Name": "Velocity of Water,electromagnetic meters",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5712",
        "Identifier": "D511 A***retired*** D511(A)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D511 A  ~ Standard Test Methods for Calcium and Magnesium In Water",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5713",
        "Identifier": "D511 B***retired*** D511(B)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D511 B  ~ Calcium and Magnesium In Water by AAS",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "749",
        "Identifier": "D511(A)",
        "Context": "ASTM",
        "Name": "D511 A  ~ Calcium and Magnesium in Water by Titration",
        "Description": "D511 A ~ ASTM . Calcium and Magnesium In Water by Complexometric Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9712\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "750",
        "Identifier": "D511(B)",
        "Context": "ASTM",
        "Name": "D511 B  ~ Calcium and Magnesium in Water by FLAA",
        "Description": "D511 B ~ ASTM . Calcium and Magnesium In Water by AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9713\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5714",
        "Identifier": "D512 A***retired*** D512(A)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D512 A  ~ Standard Test Methods for Chloride Ion In Water",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5715",
        "Identifier": "D512 B***retired*** D512(B)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D512 B  ~ Chloride Ion In Water by Silver Nitrate Titration",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4673",
        "Identifier": "D512 D",
        "Context": "ASTM",
        "Name": "D512 D ~ Chloride Ion In Water by Ion-Selective Electrode Method",
        "Description": "D512D \ D512 D ~ ASTM . Chloride Ion In Water by Ion-Selective Electrode Method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9718\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "751",
        "Identifier": "D512(A)",
        "Context": "ASTM",
        "Name": "D512 A  ~ Chloride in Water by Mercurimetric Titration",
        "Description": "D512 A ~ ASTM . Chloride Ion In Water by Mercurimetric Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9716\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "752",
        "Identifier": "D512(B)",
        "Context": "ASTM",
        "Name": "D512 B  ~ Chloride in Water by Silver Nitrate Titration",
        "Description": "D512 B ~ ASTM . Chloride Ion In Water by Silver Nitrate Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9715\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "753",
        "Identifier": "D512(C)",
        "Context": "ASTM",
        "Name": "D512 C  ~ Chloride in Water by ISE-Cl",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "754",
        "Identifier": "D5128",
        "Context": "ASTM",
        "Name": "pH of Water of Low Conductivity",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "755",
        "Identifier": "D5129",
        "Context": "ASTM",
        "Name": "Flow of Water by Width Contractions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "756",
        "Identifier": "D513(A)",
        "Context": "ASTM",
        "Name": "D513 A  ~ Total and Dissolved CO2 - Gas Sensing Electrode",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "757",
        "Identifier": "D513(B)",
        "Context": "ASTM",
        "Name": "D513 B  ~ Total and Dissolved CO2 - Coulometric Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "758",
        "Identifier": "D5130",
        "Context": "ASTM",
        "Name": "Flow of Water Indirectly by Slope AreaD8083-16",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-03-24T13:55:14 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "759",
        "Identifier": "D514",
        "Context": "ASTM",
        "Name": "Hydroxide Ion in Water(discontinued 05\96)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "760",
        "Identifier": "D5149",
        "Context": "ASTM",
        "Name": "Ozone in Atmosphere - Chemiluminescence",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4674",
        "Identifier": "D515",
        "Context": "ASTM",
        "Name": "Phosphorus in Water by manual single reagent",
        "Description": "D515 ~ ASTM . Phosphorus in Water by manual single reagent",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9811\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "761",
        "Identifier": "D515(A)",
        "Context": "ASTM",
        "Name": "D515 A  ~ Phosphorus in Water by Colorimetric Reduction",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "762",
        "Identifier": "D515(B)",
        "Context": "ASTM",
        "Name": "D515 B  ~ Phosphorus in Water by Digestion\Colorimetric Reduction",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "763",
        "Identifier": "D516",
        "Context": "ASTM",
        "Name": "Sulfate in Water by Turbidimeter",
        "Description": "D516 ~ ASTM . Sulfate in Water by Turbidimitry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4758\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5892",
        "Identifier": "D516-16",
        "Context": "ASTM",
        "Name": "D516-16 ~ ASTM; Standard Test Method for Sulfate Ion in Water",
        "Description": "D516-16 ~ ASTM . https:\\www.astm.org\d0516-16.html",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-10-04T11:30:15 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "618325",
        "Identifier": "D516-90",
        "Context": "ASTM",
        "Name": "Standard Test Method for Sulfate Ion in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2011-12-07T12:55:29 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "764",
        "Identifier": "D5173",
        "Context": "ASTM",
        "Name": "Carbon Compounds in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "765",
        "Identifier": "D5174",
        "Context": "ASTM",
        "Name": "Uranium in Water by Phosphorimetry",
        "Description": "D5174 ~ ASTM . Uranium, Trace, in Water by Pulsed-Laser Phosphorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5423\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "766",
        "Identifier": "D5175",
        "Context": "ASTM",
        "Name": "Organohalide Pesticides and PCBs by GC",
        "Description": "D5175 ~ ASTM . Organohalide Pesticides and PCBs in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5424\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "767",
        "Identifier": "D5176",
        "Context": "ASTM",
        "Name": "Nitrogen in Water by Pyrolysis Detection",
        "Description": "D5176 ~ ASTM . Nitrogen, Chemically Bound, in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5425\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "768",
        "Identifier": "D5243",
        "Context": "ASTM",
        "Name": "Open-Channel Flow of Water at Culverts",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "769",
        "Identifier": "D5244",
        "Context": "ASTM",
        "Name": "Recovery of Enteroviruses from Waters",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770",
        "Identifier": "D5246",
        "Context": "ASTM",
        "Name": "Pseudomonas aeruginosa",
        "Description": "D5246 ~ ASTM . Pseudomonas aeruginosa in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5426\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "771",
        "Identifier": "D5257",
        "Context": "ASTM",
        "Name": "Chromium in Water by Ion Chromatography",
        "Description": "D5257 ~ ASTM . Chromium, Hexavalent, in Water by Ion Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5427\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "772",
        "Identifier": "D5259",
        "Context": "ASTM",
        "Name": "Isolation and Enumeration of Enterococci",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "773",
        "Identifier": "D5315",
        "Context": "ASTM",
        "Name": "Carbamate Pesticides in Water by HPLC",
        "Description": "D5315 ~ ASTM . Standard Test Method for Carbamates in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5428\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "774",
        "Identifier": "D5316",
        "Context": "ASTM",
        "Name": "EDB and DBCP by Microextraction and GC",
        "Description": "D5316 ~ ASTM . 1,2-Dibromoethane and 1,2-Dibromo-3-Chloropropane in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5429\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "775",
        "Identifier": "D5317",
        "Context": "ASTM",
        "Name": "Chlorinated Organic Acid Compounds by GC",
        "Description": "D5317 ~ ASTM . Chlorinated Organic Acids in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5430\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "873646",
        "Identifier": "D5368",
        "Context": "ASTM",
        "Name": "Gravimetric Determination of Total Solvent Extractable Content (TSEC) of Solid Waste Samples (Withdrawn 2014)",
        "Description": "D5368 ~ ASTM . https:\\www.astm.org\standards\d5368",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-07-27T10:15:31 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4675",
        "Identifier": "D5388",
        "Context": "ASTM",
        "Name": "Discharge, Indirect, by Step-Backwater",
        "Description": "D5388 ~ ASTM . Discharge, Indirect, by Step-Backwater",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5431\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "776",
        "Identifier": "D5389",
        "Context": "ASTM",
        "Name": "Open-Channel Flow Measurement by Acoustic Velocity Meter",
        "Description": "D5389 ~ ASTM . Flow Measurments by Acoustic Velocity Meter (AVM)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5461\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "777",
        "Identifier": "D5390",
        "Context": "ASTM",
        "Name": "Open-Channel Flow Measurement by Palmer-Bowlus Flumes",
        "Description": "D5390 ~ ASTM . Flow Measurement with Palmer-Bowlus Flume",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5432\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "778",
        "Identifier": "D5391",
        "Context": "ASTM",
        "Name": "Electrical Conductivity and Resistivity",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "779",
        "Identifier": "D5392",
        "Context": "ASTM",
        "Name": "Isolation and Enumeration of E. coli Bacteria",
        "Description": "D5392 ~ ASTM . E. Coli in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5462\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "780",
        "Identifier": "D5412",
        "Context": "ASTM",
        "Name": "Polycyclic Aromatic Hydrocarbon Mixtures",
        "Description": "D5412 ~ ASTM . PAHs and Petroleum Oils in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5433\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "781",
        "Identifier": "D5413(A)",
        "Context": "ASTM",
        "Name": "D5413 A  ~ Water Levels Using Nonrecording Devices",
        "Description": "D5413A ~ ASTM . Nonrecording water-level measurement devices (Test Method A)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5463\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "782",
        "Identifier": "D5413(B)",
        "Context": "ASTM",
        "Name": "D5413 B  ~ Water Levels Using Recording Devices",
        "Description": "D5413B ~ ASTM . Recording water-level measurement devices (Test Method B)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5464\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "783",
        "Identifier": "D5413(C)",
        "Context": "ASTM",
        "Name": "D5413 C  ~ Water Levels Using Remote Interrogation",
        "Description": "D5413C ~ ASTM . Remote-interrogation water-level measurement devices (Test Method C)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5465\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "784",
        "Identifier": "D5462",
        "Context": "ASTM",
        "Name": "On-Line Measurement of Low Level DO",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "785",
        "Identifier": "D5464(A)",
        "Context": "ASTM",
        "Name": "D5464 A  ~ pH of Water of Low Conductivity",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "786",
        "Identifier": "D5464(B)",
        "Context": "ASTM",
        "Name": "D5464 B  ~ pH of Water of Low Conductivity",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "787",
        "Identifier": "D5465(A)",
        "Context": "ASTM",
        "Name": "D5465 A  ~ Microbial Counts from Waters by Plating",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "788",
        "Identifier": "D5465(B)",
        "Context": "ASTM",
        "Name": "D5465 B  ~ Microbial Counts from Waters by Plating",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "789",
        "Identifier": "D5465(C)",
        "Context": "ASTM",
        "Name": "D5465 C  ~ Microbial Counts from Water by Plating",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "790",
        "Identifier": "D5475",
        "Context": "ASTM",
        "Name": "Nitrogen and Phosphorus Pesticides in Water",
        "Description": "D5475 ~ ASTM . Nitrogen and Phosphorus-Containing Pesticides",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5434\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4676",
        "Identifier": "D5543A",
        "Context": "ASTM",
        "Name": "D5543A ~ Color Comparator Test Method Using Self-Filling Glass Ampoules (Test Method A)",
        "Description": "D5543A ~ ASTM . Color Comparator Test Method Using Self-Filling Glass Ampoules (Test Method A)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5467\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4677",
        "Identifier": "D5543B",
        "Context": "ASTM",
        "Name": "D5543B ~ Instrument Test Method Using Self-Filling Glass Ampoules (Test Method B)",
        "Description": "D5543B ~ ASTM . Instrument Test Method Using Self-Filling Glass Ampoules (Test Method B)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5468\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4678",
        "Identifier": "D5544",
        "Context": "ASTM",
        "Name": "Residue in Water",
        "Description": "D5544 ~ ASTM . Residue in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5435\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4679",
        "Identifier": "D5613",
        "Context": "ASTM",
        "Name": "Travel Time",
        "Description": "D5613 ~ ASTM . Travel Time",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5436\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4680",
        "Identifier": "D5614",
        "Context": "ASTM",
        "Name": "Open Channel Flow Measurement of Water",
        "Description": "D5614 ~ ASTM . Open Channel Flow Measurement of Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5454\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4681",
        "Identifier": "D5673",
        "Context": "ASTM",
        "Name": "Elements in Water by ICP-MS",
        "Description": "D5673 ~ ASTM . Elements in Water by ICP-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4780\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4682",
        "Identifier": "D5790",
        "Context": "ASTM",
        "Name": "Purgeable Organic Compounds in Water",
        "Description": "D5790 ~ ASTM . Purgeable Organic Compounds in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5455\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4683",
        "Identifier": "D5811",
        "Context": "ASTM",
        "Name": "Strontium-90 in Water",
        "Description": "D5811 ~ ASTM . Strontium-90 in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5453\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4684",
        "Identifier": "D5812",
        "Context": "ASTM",
        "Name": "Organochlorine Pesticides in Water by Capillary Column by GC\ECD",
        "Description": "D5812 ~ ASTM . Organochlorine Pesticides in Water by Capillary Column by GC\ECD",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4779\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4685",
        "Identifier": "D5904",
        "Context": "ASTM",
        "Name": "Carbon (all forms) in Water",
        "Description": "D5904 ~ ASTM . Carbon (all forms) in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5452\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4686",
        "Identifier": "D5907",
        "Context": "ASTM",
        "Name": "Matter, Filterable and Nonfilterable, in Water",
        "Description": "D5907 ~ ASTM . Matter, Filterable and Nonfilterable, in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5451\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4687",
        "Identifier": "D5916",
        "Context": "ASTM",
        "Name": "Clostridium perfringens from Water and Extracted Sediments",
        "Description": "D5916 ~ ASTM . Clostridium perfringens from Water and Extracted Sediments",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5450\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4688",
        "Identifier": "D5996",
        "Context": "ASTM",
        "Name": "Anionic Contaminants in High-Purity Water by On-Line Ion Chromatography",
        "Description": "D5996 ~ ASTM . Anionic Contaminants in High-Purity Water by On-Line Ion Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5449\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4689",
        "Identifier": "D5997",
        "Context": "ASTM",
        "Name": "Carbon (all forms), On-Line Measurement in Water",
        "Description": "D5997 ~ ASTM . Carbon (all forms), On-Line Measurement in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5448\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4690",
        "Identifier": "D6071",
        "Context": "ASTM",
        "Name": "Sodium by GFAA",
        "Description": "D6071 ~ ASTM . Sodium by GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5447\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4691",
        "Identifier": "D6238",
        "Context": "ASTM",
        "Name": "Oxygen Demand in Water",
        "Description": "D6238 ~ ASTM . Oxygen Demand in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5446\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4692",
        "Identifier": "D6239",
        "Context": "ASTM",
        "Name": "Uranium in Drinking Water",
        "Description": "D6239 ~ ASTM . Uranium in Drinking Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5466\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4693",
        "Identifier": "D6303",
        "Context": "ASTM",
        "Name": "Formaldehyde in Water",
        "Description": "D6303 ~ ASTM . Formaldehyde in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5437\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4604",
        "Identifier": "D6317",
        "Context": "ASTM",
        "Name": "Carbon (all forms) in Water",
        "Description": "D6317 ~ ASTM . Carbon (all forms) in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5438\",
        "LastChangeDate": "2013-02-19T11:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4694",
        "Identifier": "D6501",
        "Context": "ASTM",
        "Name": "Phosphonates in Brines",
        "Description": "D6501 ~ ASTM . Phosphonates in Brines",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5439\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4695",
        "Identifier": "D6502",
        "Context": "ASTM",
        "Name": "Particulate and Dissolved Matter by XRF",
        "Description": "D6502 ~ ASTM . Particulate and Dissolved Matter by XRF",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5440\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3037",
        "Identifier": "D6503",
        "Context": "ASTM",
        "Name": "Standard Test Method for Enterococci in Water Using Enterolert",
        "Description": "D6503 ~ ASTM . Enterococci in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5441\",
        "LastChangeDate": "2007-02-20T13:20:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3152",
        "Identifier": "D6503-99",
        "Context": "ASTM",
        "Name": "Standard Test Method for Enterococci in Water Using Enterolert",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2008-07-23T14:44:20 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4696",
        "Identifier": "D6508",
        "Context": "ASTM",
        "Name": "Anions in Water by CIE-UV",
        "Description": "D6508 ~ ASTM . Anions in Water by CIE-UV",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5442\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4697",
        "Identifier": "D6569",
        "Context": "ASTM",
        "Name": "pH, On-Line Measurement",
        "Description": "D6569 ~ ASTM . pH, On-Line Measurement",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5443\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4698",
        "Identifier": "D6581",
        "Context": "ASTM",
        "Name": "Oxyhalides in Water",
        "Description": "D6581 ~ ASTM . Oxyhalides in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5444\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4699",
        "Identifier": "D6592",
        "Context": "ASTM",
        "Name": "Water Quality by Chemiluminesence",
        "Description": "D6592 ~ ASTM . Water Quality by Chemiluminesence",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5445\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4700",
        "Identifier": "D6888",
        "Context": "ASTM",
        "Name": "Available Cyanide in water with Ligand Displacement and FIA Utilizing Gas Diffusion Separation and Amperometric Detectio",
        "Description": "D6888 ~ ASTM . Available Cyanide in water with Ligand Displacement and FIA Utilizing Gas Diffusion Separation and Amperometric Detection",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9739\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6066",
        "Identifier": "D6888-09",
        "Context": "ASTM",
        "Name": "D6888-09 ~ ASTM; Standard Test Method for Available Cyanides with Ligand Displacement and Flow Injection Analysis (FIA) Utilizing Gas Diffusion Separation and Amperometric Detection",
        "Description": "https:\\store.astm.org\d6888-16.html",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2025-07-03T09:02:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "814996",
        "Identifier": "D6913",
        "Context": "ASTM",
        "Name": "Standard Test Methods for Particle-Size Distribution (Gradation) of Soils Using Sieve Analysis",
        "Description": "This test method uses a square opening sieve criterion in determining the gradation of soil between the 3-in. (75-mm) and No. 200 (75-µm) sieves.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-01-11T14:47:18 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "814997",
        "Identifier": "D6913M",
        "Context": "ASTM",
        "Name": "Standard Test Methods for Particle-Size Distribution (Gradation) of Soils Using Sieve Analysis (percentage passing)",
        "Description": "The percentage (by mass) passing each sieve size is recorded to the nearest 0.1 %. This method is only applicable for single sieve-set sieving and when the maximum particle size is equal to or less than the No. 4 (4.75-mm) sieve.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-01-11T14:47:18 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4701",
        "Identifier": "D6919",
        "Context": "ASTM",
        "Name": "Dissolved Alkali and Alkaline Earth Cations and Ammonium in Water and Wastewater by IC",
        "Description": "D6919 ~ ASTM . Dissolved Alkali and Alkaline Earth Cations and Ammonium in Water and Wastewater by IC",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9702\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3042",
        "Identifier": "D6919-03",
        "Context": "ASTM",
        "Name": "Dissolved Alkali, Alkaline Earth Cations and Ammonium by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-06-11T11:40:05 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5234",
        "Identifier": "D6919-09",
        "Context": "ASTM",
        "Name": "Determination of Diss. Alkali and Ammonium in Water and Wastewater by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-11-15T13:44:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "810614",
        "Identifier": "D6919-17",
        "Context": "ASTM",
        "Name": "Determination of Dissolved Alkali and Ammonium in Water and Wastewater by Ion Chromatography",
        "Description": "Standard Test Method for Determination of Dissolved Alkali and Alkaline Earth Cations and Ammonium in Water and Wastewater by Ion Chromatography. https:\\www.astm.org\Standards\D6919.htm Active Standard ASTM D6919 | Developed by Subcommittee: D19.05 Book of Standards Volume: 11.02",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-11-09T13:40:35 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "791",
        "Identifier": "D698",
        "Context": "ASTM",
        "Name": "Compaction Characteristics of Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5330",
        "Identifier": "D7065-11",
        "Context": "ASTM",
        "Name": "Nonylphenol, Bisphenol A, p-tert-Octylphenol, Nonylphenol Monoethoxylate and Diethoxylate in Envtl. Waters by GC\MS",
        "Description": "Standard Test Method for Determination of Nonylphenol, Bisphenol A, p-tert -Octylphenol, Nonylphenol Monoethoxylate and Nonylphenol Diethoxylate in Environmental Waters by Gas Chromatography Mass Spectrometry. http:\\www.astm.org\Standards\D7065.htm",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-01-07T07:32:08 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770936",
        "Identifier": "D7237",
        "Context": "ASTM",
        "Name": "D7237 ~ Free Cyanide & Aquatic Free Cyanide and Aquatic Free Cyanide w\flow",
        "Description": "Standard Test Method for Free Cyanide and Aquatic Free Cyanide with Flow Injection Analysis (FIA) Utilizing Gas Diffusion Separation and Amperometric Detection",
        "QualifierType": "",
        "URL": "https:\\www.astm.org\Standards\D7237.htm",
        "LastChangeDate": "2019-09-19T12:27:34 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "814986",
        "Identifier": "D7284",
        "Context": "ASTM",
        "Name": "Total Cyanide in Water by Micro Distillation followed by Flow Injection Analysis with Gas Diffusion Separation and Amperometric Detection",
        "Description": "https:\\infostore.saiglobal.com\en-us\Standards\ASTM-D-7284-2013-154898_SAIG_ASTM_ASTM_2648150\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-12-29T15:32:46 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "873625",
        "Identifier": "D7315-07a",
        "Context": "ASTM",
        "Name": "Standard Test Method for Determination of Turbidity Above 1 Turbidity Unit (TU) in Static Mode",
        "Description": "D7315-07a ~ ASTM . Standard Test Method for Determination of Turbidity Above 1 Turbidity Unit (TU) in Static Mode",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-06-28T15:27:39 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5565",
        "Identifier": "D7315-12",
        "Context": "ASTM",
        "Name": "Standard Test Method for Determination of Turbidity Above 1 Turbidity Unit (TU) in Static Mode",
        "Description": "D7315-12 ~ ASTM . Standard Test Method for Determination of Turbidity Above 1 Turbidity Unit (TU) in Static Mode",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-11-09T11:37:24 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6053",
        "Identifier": "D7363",
        "Context": "ASTM",
        "Name": "D7363 ~ ASTM; Polycyclic Aromatics in Sediment Pore Water Using SPME and GC\MS (SIM)",
        "Description": "Determination of Parent and Alkyl Polycyclic Aromatics in Sediment Pore Water Using Solid-Phase Microextraction and Gas Chromatography\Mass Spectrometry in Selected Ion Monitoring Mode; https:\\www.astm.org\d7363-13ar21e01.html",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2024-09-18T15:28:29 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "797246",
        "Identifier": "D7511-12",
        "Context": "ASTM",
        "Name": "Standard Test Method for Total Cyanide by Segmented Flow Injection Analysis, In-Line Ultraviolet Digestion and Amperometric Detection",
        "Description": "https:\\www.astm.org\DATABASE.CART\HISTORICAL\D7511-12.htm",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-08-13T19:10:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "795049",
        "Identifier": "D7781",
        "Context": "ASTM",
        "Name": "Nitrite-Nitrate in Water by Nitrate Reductase",
        "Description": "https:\\www.astm.org\Standards\D7781.htm",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-04-16T15:11:22 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "814995",
        "Identifier": "D7928",
        "Context": "ASTM",
        "Name": "Standard Test Method for Particle-Size Distribution (Gradation) of Fine-Grained Soils Using the Sedimentation (Hydrometer) Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-01-11T14:47:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "778923",
        "Identifier": "D8083-16",
        "Context": "ASTM",
        "Name": "Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-03-24T13:55:14 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "792",
        "Identifier": "D854",
        "Context": "ASTM",
        "Name": "Specific Gravity of Soils",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "793",
        "Identifier": "D857",
        "Context": "ASTM",
        "Name": "Aluminum in Water by FLAA",
        "Description": "D857 ~ ASTM . Aluminum by FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5407\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "794",
        "Identifier": "D857(A)",
        "Context": "ASTM",
        "Name": "D857 A  ~ Aluminum in Water by FLAA (discontinued 1988)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "795",
        "Identifier": "D857(B)",
        "Context": "ASTM",
        "Name": "D857 B  ~ Aluminum in Water by Chelation and FLAA (discontinued 1988)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "796",
        "Identifier": "D857(C)",
        "Context": "ASTM",
        "Name": "D857 C  ~ Aluminum in Water by FLAA (discontinued 1988)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5716",
        "Identifier": "D858 A***retired*** D858(A)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D858 A  ~ Manganese in Water by Direct AA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5717",
        "Identifier": "D858 B***retired*** D858(B)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D858 B  ~ Manganese in Water by Chelation-Extraction \AA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5718",
        "Identifier": "D858 C***retired*** D858(C)",
        "Context": "ASTM",
        "Name": "DO NOT USE***D858 C  ~ Standard Test Methods for Manganese in Water, condensate from a medium BTU coal gasification process",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "797",
        "Identifier": "D858(A)",
        "Context": "ASTM",
        "Name": "D858 A  ~ Manganese in Water by FLAA",
        "Description": "D858 A ~ ASTM . Manganese in Water by Direct AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9762\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "798",
        "Identifier": "D858(B)",
        "Context": "ASTM",
        "Name": "D858 B  ~ Manganese in Water by Chelation and FLAA",
        "Description": "D858 B ~ ASTM . Manganese in Water by Chelation-Extraction \AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9763\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "799",
        "Identifier": "D858(C)",
        "Context": "ASTM",
        "Name": "D858 C  ~ Manganese in Water by GFAA",
        "Description": "D858 C ~ ASTM . Manganese in Water by GF-AAS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9764\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "800",
        "Identifier": "D859",
        "Context": "ASTM",
        "Name": "Silica in Water by Colorimetry",
        "Description": "D859 ~ ASTM . Silica in Water by",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9823\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "801",
        "Identifier": "D888(A)",
        "Context": "ASTM",
        "Name": "D888 A  ~ High Level Dissolved Oxygen by Titration",
        "Description": "D888 A ~ ASTM . Dissolved Oxygen in Water by Titrimetric Procedure-High Level",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9813\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "802",
        "Identifier": "D888(B)",
        "Context": "ASTM",
        "Name": "D888 B  ~ Dissolved Oxygen by Instrumental Probe",
        "Description": "D888 B ~ ASTM . Dissolved Oxygen in Water by Instrumental Probe Procedure",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9814\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3079",
        "Identifier": "D888(C)",
        "Context": "ASTM",
        "Name": "D888 C  ~ Dissolved Oxygen by Luminescence-based Sensor",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-12-07T09:49:56 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "762660",
        "Identifier": "D888-05",
        "Context": "ASTM",
        "Name": "Standard Test Methods for Dissolved Oxygen in Water",
        "Description": "Supersede  by ASTM D888 - 18",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-08-07T16:38:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "834603",
        "Identifier": "D888-12",
        "Context": "ASTM",
        "Name": "Standard Test Methods for Dissolved Oxygen in Water",
        "Description": "D888-12 ~ ASTM .  Test Method A - Titrimetric Procedure-High Level . Test Method B - Instrumental Probe Procedure Electrochemical .   Test Method C - Instrumental Probe Procedure Luminescence-Based Sensor  https:\\www.astm.org\DATABASE.CART\HISTORICAL\D888-12.htm",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-20T16:44:15 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5894",
        "Identifier": "D888-18",
        "Context": "ASTM",
        "Name": "D888-18 ~ ASTM; Standard Test Methods for Dissolved Oxygen in Water",
        "Description": "These test methods cover the determination of dissolved oxygen in water. Three test methods are given as follows: Test Method A-Titrimetric Procedure-High Level, Test Method B-Instrumental Probe Procedure-Electrochemical, Test Method C-Instrumental Probe Procedure-Luminescence-Based Sensor",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-12-01T12:06:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "762681",
        "Identifier": "D888-18(A)",
        "Context": "ASTM",
        "Name": "Standard Test Methods for Dissolved Oxygen in Water, Test Method A-Titrimetric Procedure-High Level",
        "Description": "https:\\reference.globalspec.com\standard\4472867\astm-d888-18",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-09-11T07:44:16 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "762683",
        "Identifier": "D888-18(B)",
        "Context": "ASTM",
        "Name": "Standard Test Methods for Dissolved Oxygen in Water, Test Method B-Instrumental Probe Procedure-Electrochemical",
        "Description": "https:\\reference.globalspec.com\standard\4472867\astm-d888-18",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-09-11T07:47:33 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "762682",
        "Identifier": "D888-18(C)",
        "Context": "ASTM",
        "Name": "Standard Test Methods for Dissolved Oxygen in Water,Test Method C-Instrumental Probe Procedure-Luminescence-Based Sensor",
        "Description": "https:\\reference.globalspec.com\standard\4472867\astm-d888-18",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-09-11T07:47:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5541",
        "Identifier": "D888-87",
        "Context": "ASTM",
        "Name": "Determination of Dissolved Oxygen in Natural and Wastewaters",
        "Description": "Colorimetric Indigo Carmine, Test Method A. Gilbert, T. W., Behymer, T. D., Casta±eda, H. B., Determination of Dissolved Oxygen in Natural and Wastewaters, American Laboratory, March 1982, pp. 119-134.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-04-08T08:24:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5583",
        "Identifier": "D888-92(A)",
        "Context": "ASTM",
        "Name": "Dissolved Oxygen in Water by Titrimetric Procedure-High Level",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9813\",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3151",
        "Identifier": "D93-07",
        "Context": "ASTM",
        "Name": "Standard Test Methods for Flash Point by Pensky-Martens Closed Cup Tester",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2008-07-22T09:31:01 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5233",
        "Identifier": "D93-08",
        "Context": "ASTM",
        "Name": "Standard Test Methods for Flash Point by Pensky-Martens Closed Cup Tester",
        "Description": "http:\\www.astm.org\DATABASE.CART\HISTORICAL\D93-08.htm",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-10-18T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833543",
        "Identifier": "D93-79",
        "Context": "ASTM",
        "Name": "Standard Test Methods for Flash Point by Pensky-Martens Closed Cup Tester",
        "Description": "Standard Test Methods for Flash Point by Pensky-Martens Closed Cup Tester. https:\\www.astm.org\Standards\D93",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-07-16T14:16:30 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "833544",
        "Identifier": "D93-80",
        "Context": "ASTM",
        "Name": "Standard Test Methods for Flash Point by Pensky-Martens Closed Cup Tester",
        "Description": "Standard Test Methods for Flash Point by Pensky-Martens Closed Cup Tester. https:\\www.astm.org\Standards\D93",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-07-16T14:16:30 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "803",
        "Identifier": "D932",
        "Context": "ASTM",
        "Name": "Iron Bacteria in Water and Deposits",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "804",
        "Identifier": "D934(A)",
        "Context": "ASTM",
        "Name": "D934 A  ~ Crystalline Compounds in Water Deposits",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "805",
        "Identifier": "D934(B)",
        "Context": "ASTM",
        "Name": "D934 B  ~ Crystalline Compounds in Water Deposits",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6067",
        "Identifier": "D971",
        "Context": "ASTM",
        "Name": "D971 ~ ASTM; Standard Test Method for Interfacial Tension of Insulating Liquids Against Water by the Ring Method",
        "Description": "https:\\store.astm.org\d0971-20.html",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2025-07-03T09:02:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5050",
        "Identifier": "DATA QUALITY (DEFT)",
        "Context": "USEPA",
        "Name": "Data Quality Objectives Decision Error Feasibility Trials (DEFT) Software",
        "Description": "A ~ EPA-QUALITY . Data Quality Objectives Decision Error Feasibility Trials (DEFT) Software",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11573\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5056",
        "Identifier": "DATA QUALITY GUIDE",
        "Context": "USEPA",
        "Name": "U.S. Environmental Protection Agency",
        "Description": "Data Quality Assessment: A Reviewer's Guide ~ EPA-QUALITY . U.S. Environmental Protection Agency",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11927\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5054",
        "Identifier": "DATA QUALITY SYS PLN",
        "Context": "USEPA",
        "Name": "Guidance on Systematic Planning Using the Data Quality Objectives Process",
        "Description": "C ~ EPA-QUALITY . Guidance on Systematic Planning Using the Data Quality Objectives Process",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11572\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5055",
        "Identifier": "DATA STABLE ISOTOPES",
        "Context": "USEPA",
        "Name": "Phillips, Donald L.",
        "Description": "Data Analysis Methods and Models for Stable Isotopes ~ EPA . Phillips, Donald L.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11955\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5089",
        "Identifier": "DECISION INFO SYSTEM",
        "Context": "USEPA",
        "Name": "U.S. Environmental Protection Agency Office of Research and Development",
        "Description": "The Causal Analysis\Diagnosis Decision Information System ~ EPA . U.S. Environmental Protection Agency Office of Research and Development",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11937\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2376",
        "Identifier": "DIOX(O)",
        "Context": "USEPA",
        "Name": "DIOX O  ~ PCDD and PCDF in Chemical Waste by CGC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2377",
        "Identifier": "DIOX(S)",
        "Context": "USEPA",
        "Name": "DIOX S  ~ PCDD and PCDF in Soil by CGC\MS",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2378",
        "Identifier": "DIOX(W)",
        "Context": "USEPA",
        "Name": "DIOX W  ~ PCDD and PCDF in Water by CGC\MS",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5325",
        "Identifier": "DTOX-02-622",
        "Context": "CAHFS",
        "Name": "Anatoxin-a by LC-MS\MS\MS",
        "Description": "http:\\www.vetmed.ucdavis.edu\cahfs\local-assets\pdfs\Toxicology-tests-2-12-2010.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-10-26T07:03:47 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5326",
        "Identifier": "DTOX-02-642t",
        "Context": "CAHFS",
        "Name": "Cylindrospermopsin by LC-MSMS",
        "Description": "http:\\www.vetmed.ucdavis.edu\cahfs\local-assets\pdfs\Toxicology-tests-2-12-2010.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-10-26T07:03:47 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5329",
        "Identifier": "DTOX-02-670",
        "Context": "CAHFS",
        "Name": "Microcystin LA, Microcystin RR, and Microcystin YR Analysis",
        "Description": "http:\\www.vetmed.ucdavis.edu\cahfs\local-assets\pdfs\Toxicology-tests-2-12-2010.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-11-09T15:17:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5327",
        "Identifier": "DTOX-02-703t",
        "Context": "CAHFS",
        "Name": "Saxitoxin Analysis",
        "Description": "http:\\www.vetmed.ucdavis.edu\cahfs\local-assets\pdfs\Toxicology-tests-2-12-2010.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-10-26T07:03:47 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6260",
        "Identifier": "DZ001",
        "Context": "USDOI\USGS",
        "Name": "Nitrite, as N, D",
        "Description": "Colorimetry, diazotization, DA",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-04-17T20:27:29 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6017",
        "Identifier": "Dickson SOP 1",
        "Context": "USDOC\NOAA",
        "Name": "Water sampling for the parameters of the oceanic carbon dioxide system",
        "Description": "Guide to Best Practices for Ocean CO2 Measurements: https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007.html",
        "QualifierType": "",
        "URL": "https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007\Guide_all_in_one.pdf",
        "LastChangeDate": "2024-05-08T12:51:26 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6026",
        "Identifier": "Dickson SOP 11",
        "Context": "USDOC\NOAA",
        "Name": "Gravimetric calibration of the volume of a gas loop using water",
        "Description": "Guide to Best Practices for Ocean CO2 Measurements: https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007.html",
        "QualifierType": "",
        "URL": "https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007\Guide_all_in_one.pdf",
        "LastChangeDate": "2024-05-08T13:28:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6027",
        "Identifier": "Dickson SOP 12",
        "Context": "USDOC\NOAA",
        "Name": "Gravimetric calibration of volume delivered using water",
        "Description": "Guide to Best Practices for Ocean CO2 Measurements: https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007.html",
        "QualifierType": "",
        "URL": "https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007\Guide_all_in_one.pdf",
        "LastChangeDate": "2024-05-08T13:28:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6028",
        "Identifier": "Dickson SOP 13",
        "Context": "USDOC\NOAA",
        "Name": "Gravimetric calibration of volume contained using water",
        "Description": "Guide to Best Practices for Ocean CO2 Measurements: https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007.html",
        "QualifierType": "",
        "URL": "https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007\Guide_all_in_one.pdf",
        "LastChangeDate": "2024-05-08T13:28:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6029",
        "Identifier": "Dickson SOP 14",
        "Context": "USDOC\NOAA",
        "Name": "Procedure for preparing sodium carbonate solutions for the calibration of coulometric CT measurements",
        "Description": "Guide to Best Practices for Ocean CO2 Measurements: https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007.html",
        "QualifierType": "",
        "URL": "https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007\Guide_all_in_one.pdf",
        "LastChangeDate": "2024-05-08T13:28:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6018",
        "Identifier": "Dickson SOP 2",
        "Context": "USDOC\NOAA",
        "Name": "Determination of total dissolved inorganic carbon in sea water",
        "Description": "Guide to Best Practices for Ocean CO2 Measurements: https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007.html",
        "QualifierType": "",
        "URL": "https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007\Guide_all_in_one.pdf",
        "LastChangeDate": "2024-05-08T13:28:31 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6030",
        "Identifier": "Dickson SOP 21",
        "Context": "USDOC\NOAA",
        "Name": "Applying air buoyancy corrections",
        "Description": "Guide to Best Practices for Ocean CO2 Measurements: https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007.html",
        "QualifierType": "",
        "URL": "https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007\Guide_all_in_one.pdf",
        "LastChangeDate": "2024-05-08T13:28:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6031",
        "Identifier": "Dickson SOP 22",
        "Context": "USDOC\NOAA",
        "Name": "Preparation of control charts",
        "Description": "Guide to Best Practices for Ocean CO2 Measurements: https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007.html",
        "QualifierType": "",
        "URL": "https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007\Guide_all_in_one.pdf",
        "LastChangeDate": "2024-05-08T13:28:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6032",
        "Identifier": "Dickson SOP 23",
        "Context": "USDOC\NOAA",
        "Name": "Statistical techniques used in quality assessment",
        "Description": "Guide to Best Practices for Ocean CO2 Measurements: https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007.html",
        "QualifierType": "",
        "URL": "https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007\Guide_all_in_one.pdf",
        "LastChangeDate": "2024-05-08T13:28:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6033",
        "Identifier": "Dickson SOP 24",
        "Context": "USDOC\NOAA",
        "Name": "Calculation of the fugacity of carbon dioxide in the pure gas or in air",
        "Description": "Guide to Best Practices for Ocean CO2 Measurements: https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007.html",
        "QualifierType": "",
        "URL": "https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007\Guide_all_in_one.pdf",
        "LastChangeDate": "2024-05-08T13:28:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6019",
        "Identifier": "Dickson SOP 3a",
        "Context": "USDOC\NOAA",
        "Name": "Determination of total alkalinity in sea water using a closed-cell titration",
        "Description": "Guide to Best Practices for Ocean CO2 Measurements: https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007.html",
        "QualifierType": "",
        "URL": "https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007\Guide_all_in_one.pdf",
        "LastChangeDate": "2024-05-08T13:28:31 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6020",
        "Identifier": "Dickson SOP 3b",
        "Context": "USDOC\NOAA",
        "Name": "Determination of total alkalinity in sea water using an open-cell titration",
        "Description": "Guide to Best Practices for Ocean CO2 Measurements: https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007.html",
        "QualifierType": "",
        "URL": "https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007\Guide_all_in_one.pdf",
        "LastChangeDate": "2024-05-08T13:28:31 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6021",
        "Identifier": "Dickson SOP 4",
        "Context": "USDOC\NOAA",
        "Name": "Determination of p(CO2) in air that is in equilibrium with a discrete sample of sea water",
        "Description": "Guide to Best Practices for Ocean CO2 Measurements: https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007.html",
        "QualifierType": "",
        "URL": "https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007\Guide_all_in_one.pdf",
        "LastChangeDate": "2024-05-08T13:28:31 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6022",
        "Identifier": "Dickson SOP 5",
        "Context": "USDOC\NOAA",
        "Name": "Determination of p(CO2) in air that is in equilibrium with a continuous stream of sea water",
        "Description": "Guide to Best Practices for Ocean CO2 Measurements: https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007.html",
        "QualifierType": "",
        "URL": "https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007\Guide_all_in_one.pdf",
        "LastChangeDate": "2024-05-08T13:28:31 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6023",
        "Identifier": "Dickson SOP 6a",
        "Context": "USDOC\NOAA",
        "Name": "Determination of the pH of sea water using a glass\reference electrode cell",
        "Description": "Guide to Best Practices for Ocean CO2 Measurements: https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007.html",
        "QualifierType": "",
        "URL": "https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007\Guide_all_in_one.pdf",
        "LastChangeDate": "2024-05-08T13:28:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6024",
        "Identifier": "Dickson SOP 6b",
        "Context": "USDOC\NOAA",
        "Name": "Determination of the pH of sea water using the indicator dye m-cresol purple",
        "Description": "Guide to Best Practices for Ocean CO2 Measurements: https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007.html",
        "QualifierType": "",
        "URL": "https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007\Guide_all_in_one.pdf",
        "LastChangeDate": "2024-05-08T13:28:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6025",
        "Identifier": "Dickson SOP 7",
        "Context": "USDOC\NOAA",
        "Name": "Determination of dissolved organic carbon and total dissolved nitrogen in sea water",
        "Description": "Guide to Best Practices for Ocean CO2 Measurements: https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007.html",
        "QualifierType": "",
        "URL": "https:\\www.ncei.noaa.gov\access\ocean-carbon-acidification-data-system\oceans\Handbook_2007\Guide_all_in_one.pdf",
        "LastChangeDate": "2024-05-08T13:28:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4702",
        "Identifier": "E-1192-97",
        "Context": "ASTM",
        "Name": "Acute Toxicity Tests for Water with Fishes, Macroinvertebrates, and Amphibians",
        "Description": "E-1192-97 ~ ASTM . Acute Toxicity Tests for Water with Fishes, Macroinvertebrates, and Amphibians",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9298\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1331",
        "Identifier": "E-SPEC(CMPX)",
        "Context": "USDOI\USGS",
        "Name": "E SPEC CMPX  ~ Minor Elements by Complexing",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1332",
        "Identifier": "E-SPEC(IR)",
        "Context": "USDOI\USGS",
        "Name": "E SPEC IR  ~ Minor Elements by Residue-IR",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1333",
        "Identifier": "E-SPEC(PRCP)",
        "Context": "USDOI\USGS",
        "Name": "E SPEC PRCP  ~ Minor Elements by Precipitation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1334",
        "Identifier": "E-SPEC(UV)",
        "Context": "USDOI\USGS",
        "Name": "E SPEC UV  ~ Minor Elements by Residue-UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5145",
        "Identifier": "E. COLI AND SHIGELLA",
        "Context": "CDC",
        "Name": "E. coli and Shigella in Isolates by Real-time Polymerase Chain Reaction",
        "Description": "CDC - E. coli and Shigella ~ CDC . E. coli and Shigella in Isolates by Real-time Polymerase Chain Reaction",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10304\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4703",
        "Identifier": "E1367-99",
        "Context": "ASTM",
        "Name": "Sediment Toxicity Test Using Marine and Estuarine Amphipods",
        "Description": "E1367-99 ~ ASTM . Sediment Toxicity Test Using Marine and Estuarine Amphipods",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9301\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6057",
        "Identifier": "E1706-95",
        "Context": "ASTM",
        "Name": "E1706-95 ~ ASTM; Toxicity of Sediment-Associated Contaminants with Freshwater Invertebrates",
        "Description": "https:\\pubs.usgs.gov\publication\5200167",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2025-02-25T12:08:44 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "606207",
        "Identifier": "E1924",
        "Context": "ASTM",
        "Name": "Conducting toxicity test with bioluminescent dinoflagellates",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2011-10-18T17:35:21 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "806",
        "Identifier": "E318",
        "Context": "ASTM",
        "Name": "Uranium in Aqueous Solutions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6234",
        "Identifier": "E325.1",
        "Context": "USEPA",
        "Name": "Chloride (Ferricyanide, Auto)",
        "Description": "Automated colorimetric determination of chloride in water.",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6235",
        "Identifier": "E325.2",
        "Context": "USEPA",
        "Name": "Chloride (Rev 2.0)",
        "Description": "Updated automated colorimetric method for chloride analysis.",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6236",
        "Identifier": "E325.3",
        "Context": "USEPA",
        "Name": "Chloride (Titrimetric)",
        "Description": "Determines chloride concentration via potentiometric titration with silver nitrate.",
        "QualifierType": "",
        "URL": "https:\\19january2021snapshot.epa.gov\sites\static\files\2020-09\documents\r5validvaluesreferencemanual_sept2020.pdf",
        "LastChangeDate": "2026-03-26T09:10:25 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5166",
        "Identifier": "EASYGEL",
        "Context": "MICROLOGY LABS",
        "Name": "E. coli and other coliform bacteria by Coliscan Easygel method",
        "Description": "Easygel ~ Micrology Labs . E. coli and other coliform bacteria by Coliscan Easygel method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5579\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5230",
        "Identifier": "ECO METHOD",
        "Context": "UBC",
        "Name": "Ecological Methodology ~  ; Krebs, C.J.",
        "Description": "Ecological Methodology ~  . Krebs, C.J.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11943\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6138",
        "Identifier": "EL003",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA, TH-230, WF, LF, HS",
        "Description": "Gross alpha, high solids (HS), Thorium-230 curve, FIL, lab filtered (LF)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6139",
        "Identifier": "EL006",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA, U, WF, CO-PRECIP,HS",
        "Description": "Gross alpha, high solids (HS), co-precipitation, Uranium, FIL",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6261",
        "Identifier": "EL009",
        "Context": "USDOI\USGS",
        "Name": "pH, fld,glass electrode (NRP\CO)",
        "Description": "PH, water, field, glass electrode (NRP @ CO WSC)",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-04-17T20:27:30 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3058",
        "Identifier": "ENTEROLERT",
        "Context": "IDEXX",
        "Name": "Enterolert Test Kit Procedure",
        "Description": "Enterolert ~ IDEXX . Enterolert",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5590\",
        "LastChangeDate": "2007-09-07T11:36:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5218",
        "Identifier": "ENVIRONMENT STANDARD",
        "Context": "NTU UK",
        "Name": "Barnett, Vic and O'Hagan, A.",
        "Description": "Setting Environmental Standards: The Statistical Approach to Handling Uncertainty and Variation ~ NTU UK . Barnett, Vic and O'Hagan, A.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11957\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5217",
        "Identifier": "ENVIRONMENTAL STATS",
        "Context": "NTU UK",
        "Name": "Barnett, Vic",
        "Description": "Environmental Statistics: Methods and Applications ~ NTU UK . Barnett, Vic",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11954\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5731",
        "Identifier": "EP 002",
        "Context": "ENVIROLOGIX",
        "Name": "EP 002, GMO and Mycotoxin Testing",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5160",
        "Identifier": "EP 010",
        "Context": "ENVIROLOGIX",
        "Name": "Chlordane (cyclodiene) immunoassay",
        "Description": "EP 010 ~ Envirologix . Chlordane (cyclodiene) immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5622\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5732",
        "Identifier": "EP 014",
        "Context": "ENVIROLOGIX",
        "Name": "Cholinesterase Screening Test",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5161",
        "Identifier": "EP 020",
        "Context": "ENVIROLOGIX",
        "Name": "DDT immunoassay",
        "Description": "EP 020 ~ Envirologix . DDT immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5626\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5733",
        "Identifier": "EP 022",
        "Context": "ENVIROLOGIX",
        "Name": "QuantiPlate for detecting Microcystin",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5734",
        "Identifier": "EP 023",
        "Context": "ENVIROLOGIX",
        "Name": "QuantiPlate™ Kit for Paraquat",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5058",
        "Identifier": "EPA RBP (INVERTS)",
        "Context": "USEPA",
        "Name": "EPA RBP INVERTS  ~ Benthic Macroinvertebrate RBP, single habitat, 1m kick net",
        "Description": "EPA RBP (Inverts) ~ EPA-OW . Benthic Macroinvertebrate RBP, single habitat, 1m kick net",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9500\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3059",
        "Identifier": "EPA_CLP_INOR",
        "Context": "USEPA",
        "Name": "EPA_CLP_INOR ~ Inorganic Analytical Services provided under the EPA Contract Lab Program",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-09-25T11:06:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3060",
        "Identifier": "EPA_CLP_ORG",
        "Context": "USEPA",
        "Name": "EPA_CLP_ORG ~ Organic Analytical Services provided under the EPA Contract Lab Program",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-09-25T11:06:32 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5162",
        "Identifier": "ET013",
        "Context": "ENVIROLOGIX",
        "Name": "PCB (polychlorinated biphenyl) immunoassay",
        "Description": "ET013 ~ Envirologix . PCB (polychlorinated biphenyl) immunoassay",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5642\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2379",
        "Identifier": "EV-024",
        "Context": "USEPA",
        "Name": "Tin and Triorganotin in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2380",
        "Identifier": "EV-025",
        "Context": "USEPA",
        "Name": "Tin and Triorganotin in Wastewater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5564",
        "Identifier": "EXO WQ sonde",
        "Context": "YSI",
        "Name": "Multiparameter Water Quality Sonde",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-11-09T11:25:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5741",
        "Identifier": "EXP-001",
        "Context": "SEI",
        "Name": "Ranger EXP Digital Radiation Detector",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3084",
        "Identifier": "Enterolert2000",
        "Context": "IDEXX",
        "Name": "Enterolert Test Kit Procedure",
        "Description": "https:\\www.nemi.gov\methods\method_summary\5590\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-12-14T09:50:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1236",
        "Identifier": "F-01",
        "Context": "USDOE\EML",
        "Name": "Fluoride in Soil and Sediment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "807",
        "Identifier": "F488",
        "Context": "ASTM",
        "Name": "Bacterial Count in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "808",
        "Identifier": "F60",
        "Context": "ASTM",
        "Name": "Detection of Microbiological Contaminant",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2381",
        "Identifier": "FE-01",
        "Context": "USEPA",
        "Name": "Iron-55 in Water Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5096",
        "Identifier": "FMG",
        "Context": "USDA",
        "Name": "Fish inventory and monitoring technical guide, USDA-FS",
        "Description": "Fish Monitoring Guide, USDA-FS ~ USDA-FS . Fish inventory and monitoring technical guide, USDA-FS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9917\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5094",
        "Identifier": "FOR SMALL WATERSHEDS",
        "Context": "USDA",
        "Name": "Cumulative uncertainty in measured streamflow and water quality data for small watersheds ",
        "Description": "Cumulative uncertainty in measured streamflow and water quality data for small watersheds ~ USDA-ARS . Harmel, R.D., R.J. Cooper, R.M. Slade, R.L. Haney, and J.G. Arnold",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11938\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5059",
        "Identifier": "FT-SG",
        "Context": "USEPA",
        "Name": "Francisella tularensis plate count method",
        "Description": "Ft-SG ~ EPA-OW . Francisella tularensis plate count method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10928\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770758",
        "Identifier": "Field Sampling",
        "Context": "PACE LABS",
        "Name": "Field Sampling",
        "Description": "https:\\www.pacelabs.com\assets\documents\Environmental\capabilities-2015.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-06-21T23:08:57 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3244",
        "Identifier": "Field_SOP",
        "Context": "QuickDrops",
        "Name": "Measurements collected according to Standard Operating Procedure",
        "Description": "Measurements collected from a meter, sonde, or other field equipment according to Standard Operating Procedure. This is meant to be a generic method that indicates the field measurements were collected according to some SOP managed by whatever organization measured\collected the data as part of their QAPP. Contact data collecting organization or visit QuickDrops.org to obtain more information.  https:\\www.savethesound.org\quickdrops-test\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-09-20T14:06:12 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1237",
        "Identifier": "G-01",
        "Context": "USDOE\EML",
        "Name": "Electrodeposition of the Actinides",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4735",
        "Identifier": "G-03",
        "Context": "USDOE\EML",
        "Name": "Microprecipitation Source Preparation for Alpha Spectrometry",
        "Description": "G-03 ~ DOE EML . Microprecipitation Source Preparation for Alpha Spectrometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4855\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770759",
        "Identifier": "GC\MS",
        "Context": "PACE LABS",
        "Name": "GC\MS",
        "Description": "https:\\www.pacelabs.com\assets\documents\Environmental\capabilities-2015.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-06-21T23:08:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6140",
        "Identifier": "GCM29",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA, TH-230, SUS, LF",
        "Description": "Gross alpha, Thorium-230 curve, SUS, lab filtered (LF)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6141",
        "Identifier": "GCM31",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA, TH-230, WF",
        "Description": "Gross-Alpha radioactivity, Thorium-230 curve, water, unfiltered, pCi\L",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6142",
        "Identifier": "GCM33",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA, TH-230, BED SED",
        "Description": "Gross-Alpha, Bottom Material, Thorium-230 curve",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6143",
        "Identifier": "GCM35",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA, TH-230, SUS",
        "Description": "Gross-Alpha, Suspended, Thorium-230 Curve",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6144",
        "Identifier": "GCM39",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA, TH-230,WF,CO-PRECIP",
        "Description": "Gross-Alpha, Water, Filtered, High Solids, Thorium-230 curve, by Co-precipitation",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6145",
        "Identifier": "GCM40",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA,TH-230,WF,BY RESIDUE",
        "Description": "Gross-Alpha, Water, Filtered, Thorium-230 curve, by Residue Procedure",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6146",
        "Identifier": "GF075",
        "Context": "USDOI\USGS",
        "Name": "PLUTONIUM-238, BED, ALPHA (STL)",
        "Description": "Plutonium-238, bed sediment, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6147",
        "Identifier": "GRV28",
        "Context": "USDOI\USGS",
        "Name": "PLUTONIUM-238, SUS, ALPHA (STL)",
        "Description": "Plutonium-238, suspended sediment, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4760",
        "Identifier": "GWPD 1",
        "Context": "USDOI\USGS",
        "Name": "GWPD 1-Measuring water levels by use of a graduated steel tape",
        "Description": "D ~ USGS . GWPD 1-Measuring water levels by use of a graduated steel tape",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11552\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4764",
        "Identifier": "GWPD 17",
        "Context": "USDOI\USGS",
        "Name": "GWPD 17-Conducting an instantaneous change in head (slug) test with a mechanical slug and submersible pressure transduce",
        "Description": "G ~ USGS . GWPD 17-Conducting an instantaneous change in head (slug) test with a mechanical slug and submersible pressure transducer",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11568\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4761",
        "Identifier": "GWPD 2",
        "Context": "USDOI\USGS",
        "Name": "GWPD 2-Identifying a minimum set of data elements to establish a groundwater site",
        "Description": "E ~ USGS . GWPD 2-Identifying a minimum set of data elements to establish a groundwater site",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11553\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4763",
        "Identifier": "GWPD 3",
        "Context": "USDOI\USGS",
        "Name": "GWPD 3-Establishing a permanent measuring point and other reference marks",
        "Description": "F ~ USGS . GWPD 3-Establishing a permanent measuring point and other reference marks",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11554\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4766",
        "Identifier": "GWPD WELL",
        "Context": "USDOI\USGS",
        "Name": "Method to estimate discharge from a pumped well by use of a circular orifice weir",
        "Description": "H ~ USGS . Method to estimate discharge from a pumped well by use of a circular orifice weir",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11561\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4749",
        "Identifier": "GWTP",
        "Context": "USDOI\USGS",
        "Name": "Groundwater technical procedures of the U.S. Geological Survey",
        "Description": "B ~ USGS . Groundwater technical procedures of the U.S. Geological Survey",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11551\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "19269",
        "Identifier": "Grab",
        "Context": "WQXTEST",
        "Name": "Grab ~ MassWateR; Grab Water Sample Collection",
        "Description": "This method involves the collection of a surface water sample by dipping a water bottle from shore, boat, or while wading. This is a generic method intended for use by MassWateR users.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-12-12T18:20:47 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2382",
        "Identifier": "H-01",
        "Context": "USEPA",
        "Name": "Tritium in Milk, Soil, Urine and Biota",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2383",
        "Identifier": "H-02",
        "Context": "USEPA",
        "Name": "Tritium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2384",
        "Identifier": "H-03",
        "Context": "USEPA",
        "Name": "Tritium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4767",
        "Identifier": "HBSL",
        "Context": "USDOI\USGS",
        "Name": "Health Based Screening Levels (HBSLs)",
        "Description": "Health Based Screening Levels (HBSLs) ~ USGS . Toccalino, P., Nowell, L., Wilber, W., Zogorski, J., Donohue, J., E., C., Krietzman, S., and Post, G.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11961\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2385",
        "Identifier": "HERL_001",
        "Context": "USEPA",
        "Name": "Organchlorine Pesticides in Tissue",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2386",
        "Identifier": "HERL_002",
        "Context": "USEPA",
        "Name": "HCB and Mirex in Tissue",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2387",
        "Identifier": "HERL_003",
        "Context": "USEPA",
        "Name": "Pesticides in Tissue and Human Milk",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2388",
        "Identifier": "HERL_004",
        "Context": "USEPA",
        "Name": "Pesticides in Blood or Serum",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2389",
        "Identifier": "HERL_005",
        "Context": "USEPA",
        "Name": "Pentachlorophenol in Blood",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2390",
        "Identifier": "HERL_006",
        "Context": "USEPA",
        "Name": "Pentachlorophenol and Salts in Urine",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2391",
        "Identifier": "HERL_007",
        "Context": "USEPA",
        "Name": "Bis(p-Chlorophenyl) Acetic Acid in Urine",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2392",
        "Identifier": "HERL_008",
        "Context": "USEPA",
        "Name": "2,4-D and 2,4,5-T in Urine",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2393",
        "Identifier": "HERL_009",
        "Context": "USEPA",
        "Name": "Kepone in Blood and Environmental Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2394",
        "Identifier": "HERL_010",
        "Context": "USEPA",
        "Name": "Pesticides and Metabolites in Tissue",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2395",
        "Identifier": "HERL_011",
        "Context": "USEPA",
        "Name": "Metabolites or Hydrolysis Products",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2396",
        "Identifier": "HERL_012",
        "Context": "USEPA",
        "Name": "para-Nitrophenol in Urine",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2397",
        "Identifier": "HERL_013",
        "Context": "USEPA",
        "Name": "Cholinesterase Activity in Blood",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2398",
        "Identifier": "HERL_014",
        "Context": "USEPA",
        "Name": "1-Naphthol in Urine",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2399",
        "Identifier": "HERL_016",
        "Context": "USEPA",
        "Name": "Pesticides in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2400",
        "Identifier": "HERL_017",
        "Context": "USEPA",
        "Name": "PCBs in Human Milk by Macro Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2401",
        "Identifier": "HERL_018",
        "Context": "USEPA",
        "Name": "PCBs in Human Milk by Micro Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2402",
        "Identifier": "HERL_020",
        "Context": "USEPA",
        "Name": "PCBs in Adipose Tissue",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2403",
        "Identifier": "HERL_021",
        "Context": "USEPA",
        "Name": "TCDD Residues",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2404",
        "Identifier": "HERL_022",
        "Context": "USEPA",
        "Name": "Analysis of Water for Pesticides",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2405",
        "Identifier": "HERL_023",
        "Context": "USEPA",
        "Name": "Analysis of Water for Herbicides",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2406",
        "Identifier": "HERL_024",
        "Context": "USEPA",
        "Name": "Insecticides in Soils and Housedust",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2407",
        "Identifier": "HERL_025",
        "Context": "USEPA",
        "Name": "Insecticides in Bottom Sediment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2408",
        "Identifier": "HERL_026",
        "Context": "USEPA",
        "Name": "Pesticides in Human Tissue and Milk",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2409",
        "Identifier": "HERL_030",
        "Context": "USEPA",
        "Name": "Infrared Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1238",
        "Identifier": "HG-01",
        "Context": "USDOE\EML",
        "Name": "Mercury - AA Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5299",
        "Identifier": "HILSENHOFF BIOTIC",
        "Context": "USEPA",
        "Name": "Hilsenhoff Biotic Index",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-12-17T13:03:27 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770805",
        "Identifier": "Human Bacteroidetes",
        "Context": "Source Molecular",
        "Name": "Human Bacteroidetes",
        "Description": "Service determines the presence of Human Fecal Contamination. Uses Bacteroidetes as the indicator organism. Client sends 500ml water samples. Results in as little as 3 working days.  Uses PCR DNA analytical technology.",
        "QualifierType": "",
        "URL": "https:\\sourcemolecular.com\human\humanbacteroidetes\",
        "LastChangeDate": "2019-07-10T12:19:31 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2410",
        "Identifier": "I-001-1",
        "Context": "USEPA",
        "Name": "Metals in Soil by XRF",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2411",
        "Identifier": "I-002-1",
        "Context": "USEPA",
        "Name": "Digestion\Analysis of Soil by Flame AA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2412",
        "Identifier": "I-003-1",
        "Context": "USEPA",
        "Name": "Hexavalent Chromium",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2413",
        "Identifier": "I-004-1",
        "Context": "USEPA",
        "Name": "Digestion\Analysis of Waters by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2414",
        "Identifier": "I-005-1",
        "Context": "USEPA",
        "Name": "Mercury by CVAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2415",
        "Identifier": "I-006-1",
        "Context": "USEPA",
        "Name": "Mercury by CVAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2416",
        "Identifier": "I-01",
        "Context": "USEPA",
        "Name": "I-01 ~ Iodine-131 in Drinking Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1239",
        "Identifier": "I-01",
        "Context": "USDOE\EML",
        "Name": "I-01 ~ Iodine-131 in Milk",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2417",
        "Identifier": "I-02",
        "Context": "USEPA",
        "Name": "Iodine-131 in Milk",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2418",
        "Identifier": "I-03",
        "Context": "USEPA",
        "Name": "Low Level Iodine-131 in Milk",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743076",
        "Identifier": "I-1020-85.2",
        "Context": "USDOI\USGS",
        "Name": "Acidity by electrometric titration to pH 8.3",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-11-27T15:33:22 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4768",
        "Identifier": "I-1030-85",
        "Context": "USDOI\USGS",
        "Name": "Alkalinity in water by electrometric titration",
        "Description": "I-1030-85 ~ USGS-NWQL . Alkalinity in water by electrometric titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9596\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743077",
        "Identifier": "I-1030-85.2",
        "Context": "USDOI\USGS",
        "Name": "Alkalinity in water by electrometric titration",
        "Description": "http:\\www.caslab.com\Test-Method-I-1030-85\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-11-27T15:36:04 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5759",
        "Identifier": "I-1054***retired*** I1054",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1054 ~ Aluminum, dissolved, water, DCP",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5760",
        "Identifier": "I-1055***retired*** I1055",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1055 ~ Antimony, dissolved, water, hydride_AA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5761",
        "Identifier": "I-1084***retired*** I1084",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1084 ~ Barium, dissolved, water, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5762",
        "Identifier": "I-1095***retired*** I1095",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1095 ~ Beryllium, dissolved, water, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5763",
        "Identifier": "I-1114***retired*** I1114",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1114 ~ Boron, dissolved, water, DCP",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4769",
        "Identifier": "I-1125-85",
        "Context": "USDOI\USGS",
        "Name": "Bromide, dissolved, in water by titrimetric, hypochlorite oxidation",
        "Description": "I-1125-85 ~ USGS-NWQL . Bromide, dissolved, in water by titrimetric, hypochlorite oxidation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9609\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5764",
        "Identifier": "I-1135***retired*** I1135",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1135 ~ Cadmium, dissolved, water, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5765",
        "Identifier": "I-1137***retired*** I1137",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1137 ~ Cadmium dissolved in Water by GFAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5766",
        "Identifier": "I-1152***retired*** I1152",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1152 ~ Calcium, dissolved, water, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4770",
        "Identifier": "I-1183-85",
        "Context": "USDOI\USGS",
        "Name": "Chloride, dissolved, in water by titrimetric, Mohr method",
        "Description": "I-1183-85 ~ USGS-NWQL . Chloride, dissolved, in water by titrimetric, Mohr method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9597\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4771",
        "Identifier": "I-1184-85",
        "Context": "USDOI\USGS",
        "Name": "Chloride, dissolved, in water by titrimetric, mercurimetric",
        "Description": "I-1184-85 ~ USGS-NWQL . Chloride, dissolved, in water by titrimetric, mercurimetric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9610\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4772",
        "Identifier": "I-1187-85",
        "Context": "USDOI\USGS",
        "Name": "Chloride, dissolved, in water by colorimetric, ferric thiocyanate",
        "Description": "I-1187-85 ~ USGS-NWQL . Chloride, dissolved, in water by colorimetric, ferric thiocyanate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9601\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4773",
        "Identifier": "I-1190-02",
        "Context": "USDOI\USGS",
        "Name": "Arsenic, dissolved, field speciation, solid-phase extraction, ICP-MS",
        "Description": "I-1190-02 ~ USGS-NWQL . Arsenic, dissolved, field speciation, solid-phase extraction, ICP-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8912\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4774",
        "Identifier": "I-1229-87",
        "Context": "USDOI\USGS",
        "Name": "Chromium, dissolved, in water by atomic emission",
        "Description": "I-1229-87 ~ USGS-NWQL . Chromium, dissolved, in water by atomic emission",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8949\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4775",
        "Identifier": "I-1230-85",
        "Context": "USDOI\USGS",
        "Name": "Chromium, hexavalent, dissovled, in water by colorimetric, diphenylcarbazide",
        "Description": "I-1230-85 ~ USGS-NWQL . Chromium, hexavalent, dissovled, in water by colorimetric, diphenylcarbazide",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9611\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5767",
        "Identifier": "I-1232***retired*** I1232",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1232 ~ Chromium, hexavalent, dissolved, water, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4776",
        "Identifier": "I-1233",
        "Context": "USDOI\USGS",
        "Name": "Chromium, dissolved, water, GFAA",
        "Description": "I-1233 ~ USGS-NWQL . Chromium, dissolved, water, GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5531\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "834387",
        "Identifier": "I-1233-93",
        "Context": "USDOI\USGS",
        "Name": "Chromium in Filtered Water by GFAAS",
        "Description": "I-1233-93 ~ USGS-NWQL . Nutrients, low level, filtered water, salicylate-hypochlorite, colorimetric",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-08-18T18:05:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5768",
        "Identifier": "I-1235***retired*** I1235",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1235 ~ Chromium, dissolved, water, GFAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5769",
        "Identifier": "I-1239***retired*** I1239",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1239 ~ Cobalt, dissolved, water, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5770",
        "Identifier": "I-1241***retired*** I1241",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1241 ~ Cobalt, dissolved, water, GFAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5771",
        "Identifier": "I-1270***retired*** I1270",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1270 ~ Copper, dissolved in water by FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5772",
        "Identifier": "I-1272***retired*** I1272",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1272 ~ Copper, dissolved in water by GFAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4777",
        "Identifier": "I-1300-85",
        "Context": "USDOI\USGS",
        "Name": "Cyanide, Colorimetric, Pyridine-Pyrazolone, Dissolved",
        "Description": "I-1300-85 ~ USGS-NWQL . Cyanide, Colorimetric, Pyridine-Pyrazolone, Dissolved",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8909\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4778",
        "Identifier": "I-1312",
        "Context": "USDOI\USGS",
        "Name": "Density, dissolved, water by gravimetry",
        "Description": "I-1312 ~ USGS-NWQL . Density, dissolved, water by gravimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5648\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4779",
        "Identifier": "I-1338",
        "Context": "USDOI\USGS",
        "Name": "Hardness in water by colorimetric titration",
        "Description": "I-1338 ~ USGS-NWQL . Hardness in water by colorimetric titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4781\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5590",
        "Identifier": "I-1338-85",
        "Context": "USDOI\USGS",
        "Name": "Hardness in water by colorimetric titration",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4781\",
        "LastChangeDate": "2018-03-30T14:36:40 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5773",
        "Identifier": "I-1381***retired*** I1381",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1381 ~ Iron, dissolved in water by FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5774",
        "Identifier": "I-1399***retired*** I1399",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1399 ~ Lead, dissolved, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5775",
        "Identifier": "I-1401***retired*** I1401",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1401 ~ Lead, dissolved in water by GFAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5776",
        "Identifier": "I-1425***retired*** I1425",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1425 ~ Lithium, dissolved, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5777",
        "Identifier": "I-1447***retired*** I1447",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1447 ~ Magnesium, dissolved, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5778",
        "Identifier": "I-1454***retired*** I1454",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1454 ~ Manganese, dissolved, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5779",
        "Identifier": "I-1455***retired*** I1455",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1455 ~ Manganese, dissolved, GFAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5780",
        "Identifier": "I-1456***retired*** I1456",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1456 ~ Manganese, dissolved, chelation extraction, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5781",
        "Identifier": "I-1462***retired*** I1462",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1462 ~ Mercury, dissolved, CVFAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4780",
        "Identifier": "I-1472-85",
        "Context": "USDOI\USGS",
        "Name": "Metals, dissolved, water, ICP-AES (Archive method)",
        "Description": "I-1472-85 ~ USGS-NWQL . Metals, dissolved, water, ICP-AES (Archive method)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4761\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4781",
        "Identifier": "I-1472-87",
        "Context": "USDOI\USGS",
        "Name": "Metals in Water by ICP",
        "Description": "I-1472-87 ~ USGS-NWQL . Metals in Water by ICP",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8896\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4782",
        "Identifier": "I-1472-95",
        "Context": "USDOI\USGS",
        "Name": "Aluminum and Boron, dissolved, in water by ICP-AES",
        "Description": "I-1472-95 ~ USGS-NWQL . Aluminum and Boron, dissolved, in water by ICP-AES",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8915\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4783",
        "Identifier": "I-1492-96",
        "Context": "USDOI\USGS",
        "Name": "Molybdenum in Water by Graphite Furnace Atomic Absorption Spectrophotometry, Filtered",
        "Description": "I-1492-96 ~ USGS-NWQL . Molybdenum in Water by Graphite Furnace Atomic Absorption Spectrophotometry, Filtered",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8928\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5782",
        "Identifier": "I-1499***retired*** I1499",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1499 ~ Nickel, dissolved, direct FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5783",
        "Identifier": "I-1501***retired*** I1501",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1501 ~ Nickel, dissolved, low ionic-strength, GFAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4784",
        "Identifier": "I-1575-78",
        "Context": "USDOI\USGS",
        "Name": "Oxygen, dissolved, in water by Winkler titrimetric methods",
        "Description": "I-1575-78 ~ USGS-NWQL . Oxygen, dissolved, in water by Winkler titrimetric methods",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9600\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4785",
        "Identifier": "I-1576-78",
        "Context": "USDOI\USGS",
        "Name": "Oxygen, dissolved, in water by electrometric, polarographic probe",
        "Description": "I-1576-78 ~ USGS-NWQL . Oxygen, dissolved, in water by electrometric, polarographic probe",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9593\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4786",
        "Identifier": "I-1578-78",
        "Context": "USDOI\USGS",
        "Name": "Oxygen demand, biochemical, in water by 5-day titrimetric methods at 20<sup>o<\sup>C",
        "Description": "I-1578-78 ~ USGS-NWQL . Oxygen demand, biochemical, in water by 5-day titrimetric methods at 20<sup>o<\sup>C",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9592\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4787",
        "Identifier": "I-1586-85",
        "Context": "USDOI\USGS",
        "Name": "pH of Water Samples by Ion Selective Electrode",
        "Description": "I-1586-85 ~ USGS-NWQL . pH of Water Samples by Ion Selective Electrode",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8925\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4788",
        "Identifier": "I-1601-85",
        "Context": "USDOI\USGS",
        "Name": "Phosphorus, orthophosphate, dissolved in water by colorimetry, phosphomolybdate",
        "Description": "I-1601-85 ~ USGS-NWQL . Phosphorus, orthophosphate, dissolved in water by colorimetry, phosphomolybdate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10455\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4789",
        "Identifier": "I-1630-85",
        "Context": "USDOI\USGS",
        "Name": "I-1630-85 ~ Potassium, dissolved, in Water by Atomic Absorption Spectrometry",
        "Description": "I-1630-85 ~ USGS-NWQL . Potassium, dissolved, in Water by Atomic Absorption Spectrometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8952\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4790",
        "Identifier": "I-1700-85",
        "Context": "USDOI\USGS",
        "Name": "Silica, dissolved, in water by colorimetric, molybdate blue",
        "Description": "I-1700-85 ~ USGS-NWQL . Silica, dissolved, in water by colorimetric, molybdate blue",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9618\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4791",
        "Identifier": "I-1735",
        "Context": "USDOI\USGS",
        "Name": "Sodium, dissolved, atomic absorption spectrometric",
        "Description": "I-1735 ~ USGS-NWQL . Sodium, dissolved, atomic absorption spectrometric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5472\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4792",
        "Identifier": "I-1750-85",
        "Context": "USDOI\USGS",
        "Name": "Solids, dissolved, residue on evaporation at 180 degrees C, gravimetric",
        "Description": "I-1750-85 ~ USGS-NWQL . Solids, dissolved, residue on evaporation at 180 degrees C, gravimetric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8918\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "884130",
        "Identifier": "I-1750-89",
        "Context": "USDOI\USGS",
        "Name": "Solids, residue on evaporation at 180 deg C, dissolved, gravimetric",
        "Description": "I-1750-89 ~ USGS-NWQL ",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8918\",
        "LastChangeDate": "2023-01-11T12:44:12 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5309",
        "Identifier": "I-1751-85",
        "Context": "USDOI\USGS",
        "Name": "Solids, Sum of constituents, calculation",
        "Description": "http:\\nwql.usgs.gov\Public\rpt.shtml?TWRI-5-A1",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-06-04T09:16:18 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5239",
        "Identifier": "I-1752-85",
        "Context": "USDOI\USGS",
        "Name": "Dissolved Solids, Fixed",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-11-15T13:44:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4793",
        "Identifier": "I-1753",
        "Context": "USDOI\USGS",
        "Name": "Solids, dissolved, volatile-on-ignition, gravimetric",
        "Description": "I-1753 ~ USGS-NWQL . Solids, dissolved, volatile-on-ignition, gravimetric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5474\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5244",
        "Identifier": "I-1753-85",
        "Context": "USDOI\USGS",
        "Name": "Solids, volatile-on-ignition, dissolved, gravimetric",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-11-18T13:44:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4794",
        "Identifier": "I-1780-85",
        "Context": "USDOI\USGS",
        "Name": "Specific Conductance of Water, Manual",
        "Description": "I-1780-85 ~ USGS-NWQL . Specific Conductance of Water, Manual",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8914\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4795",
        "Identifier": "I-1800",
        "Context": "USDOI\USGS",
        "Name": "Strontium, dissolved, atomic absorption spectrometric",
        "Description": "I-1800 ~ USGS-NWQL . Strontium, dissolved, atomic absorption spectrometric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5475\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5784",
        "Identifier": "I-1866***retired*** I1866",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1866 ~ Thallium, dissolved, graphite furnace",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4796",
        "Identifier": "I-1900",
        "Context": "USDOI\USGS",
        "Name": "Zinc, dissolved, atomic absorption spectrometric",
        "Description": "I-1900 ~ USGS-NWQL . Zinc, dissolved, atomic absorption spectrometric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5477\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5785",
        "Identifier": "I-1901***retired*** I1901",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-1901 ~ Zinc, dissolved, graphite furnace",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4797",
        "Identifier": "I-2020-05",
        "Context": "USDOI\USGS",
        "Name": "Elements (filtered) in water by cICP-MS",
        "Description": "I-2020-05 ~ USGS-NWQL . Elements (filtered) in water by cICP-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9352\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4798",
        "Identifier": "I-2030-85",
        "Context": "USDOI\USGS",
        "Name": "Alkalinity of water samples",
        "Description": "I-2030-85 ~ USGS-NWQL . Alkalinity of water samples",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8898\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4799",
        "Identifier": "I-2030-89",
        "Context": "USDOI\USGS",
        "Name": "Alkalinity of water samples",
        "Description": "I-2030-89 ~ USGS-NWQL . Alkalinity of water samples",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8950\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5786",
        "Identifier": "I-2057***retired*** I2057",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-2057 ~ Anions, dissolved, water, IONCHR",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "884129",
        "Identifier": "I-2057-85",
        "Context": "USDOI\USGS",
        "Name": "Anions, dissolved, water, IONCHR",
        "Description": "I-2057-85 ~ USGS-NWQL ",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-01-11T12:44:12 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "884128",
        "Identifier": "I-2057-89",
        "Context": "USDOI\USGS",
        "Name": "Anions, Ion-exchange chromatographic, automated; USGS OFR 93-125, p.19",
        "Description": "I-2057-89 ~ USGS-NWQL ",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-01-11T12:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5787",
        "Identifier": "I-2058***retired*** I2058",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-2058 ~ Anions, dissolved, water, IONCHR",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5788",
        "Identifier": "I-2062***retired*** I2062",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-2062 ~ Arsenic, dissolved, water, hydride_AA.",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4800",
        "Identifier": "I-2063-98",
        "Context": "USDOI\USGS",
        "Name": "Arsenic in water by graphite furnace-atomic absorption spectrometry, dissolved",
        "Description": "I-2063-98 ~ USGS-NWQL . Arsenic in water by graphite furnace-atomic absorption spectrometry, dissolved",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8920\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4801",
        "Identifier": "I-2129-85",
        "Context": "USDOI\USGS",
        "Name": "Bromide in Water by Colorimetry",
        "Description": "I-2129-85 ~ USGS-NWQL . Bromide in Water by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8926\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4802",
        "Identifier": "I-2138-89",
        "Context": "USDOI\USGS",
        "Name": "Cadmium in Water by GFAA, Dissolved",
        "Description": "I-2138-89 ~ USGS-NWQL . Cadmium in Water by GFAA, Dissolved",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8955\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4803",
        "Identifier": "I-2187-85",
        "Context": "USDOI\USGS",
        "Name": "Chloride, dissolved, in water by colorimetric, ferric thiocyanate, automated-segmented flow",
        "Description": "I-2187-85 ~ USGS-NWQL . Chloride, dissolved, in water by colorimetric, ferric thiocyanate, automated-segmented flow",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9617\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4804",
        "Identifier": "I-2191-02",
        "Context": "USDOI\USGS",
        "Name": "Laboratory arsenic speciation, phosphate mobile phase, arsine generation, ICP-MS detection, dissolved",
        "Description": "I-2191-02 ~ USGS-NWQL . Laboratory arsenic speciation, phosphate mobile phase, arsine generation, ICP-MS detection, dissolved",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8886\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4805",
        "Identifier": "I-2192-02",
        "Context": "USDOI\USGS",
        "Name": "Laboratory arsenic speciation, malonate\acetate mobile phase, ICP-MS detection, dissolved",
        "Description": "I-2192-02 ~ USGS-NWQL . Laboratory arsenic speciation, malonate\acetate mobile phase, ICP-MS detection, dissolved",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8888\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4806",
        "Identifier": "I-2193-02",
        "Context": "USDOI\USGS",
        "Name": "Laboratory arsenic speciation, nitric acid mobile phase, ICP-MS detection, dissolved",
        "Description": "I-2193-02 ~ USGS-NWQL . Laboratory arsenic speciation, nitric acid mobile phase, ICP-MS detection, dissolved",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8887\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4807",
        "Identifier": "I-2243",
        "Context": "USDOI\USGS",
        "Name": "Cobalt, dissolved, water, GFAA",
        "Description": "I-2243 ~ USGS-NWQL . Cobalt, dissolved, water, GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5539\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4808",
        "Identifier": "I-2274",
        "Context": "USDOI\USGS",
        "Name": "Copper, dissolved in water by GFAA",
        "Description": "I-2274 ~ USGS-NWQL . Copper, dissolved in water by GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5681\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5789",
        "Identifier": "I-2302***retired*** I2302",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-2302 ~ Cyanide, whole water recoverable; colorimetric",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4809",
        "Identifier": "I-2327-85",
        "Context": "USDOI\USGS",
        "Name": "Fluoride Ion in Water by Ion-Selective Electrode, Dissolved",
        "Description": "I-2327-85 ~ USGS-NWQL . Fluoride Ion in Water by Ion-Selective Electrode, Dissolved",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8953\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4810",
        "Identifier": "I-2371",
        "Context": "USDOI\USGS",
        "Name": "Iodide, dissolved in water by colorimetry",
        "Description": "I-2371 ~ USGS-NWQL . Iodide, dissolved in water by colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5661\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4811",
        "Identifier": "I-2403",
        "Context": "USDOI\USGS",
        "Name": "Lead, dissolved in water by GFAA",
        "Description": "I-2403 ~ USGS-NWQL . Lead, dissolved in water by GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5682\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5790",
        "Identifier": "I-2462***retired*** I2462",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-2462 ~ Mercury, dissolved, CVFAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4812",
        "Identifier": "I-2464-01",
        "Context": "USDOI\USGS",
        "Name": "Organic plus Inorganic Mercury in Filtered Natural Water by Cold-Vapor AFS",
        "Description": "I-2464-01 ~ USGS-NWQL . Organic plus Inorganic Mercury in Filtered Natural Water by Cold-Vapor AFS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8884\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4813",
        "Identifier": "I-2477-92",
        "Context": "USDOI\USGS",
        "Name": "Determination of metals in Water by ICP-MS",
        "Description": "I-2477-92 ~ USGS-NWQL . Determination of metals in Water by ICP-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8934\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4814",
        "Identifier": "I-2503",
        "Context": "USDOI\USGS",
        "Name": "Nickel, dissolved, GFAA",
        "Description": "I-2503 ~ USGS-NWQL . Nickel, dissolved, GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5479\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4815",
        "Identifier": "I-2515-91",
        "Context": "USDOI\USGS",
        "Name": "Ammonium plus organic nitrogen, dissolved",
        "Description": "I-2515-91 ~ USGS-NWQL . Ammonium plus organic nitrogen, dissolved",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8941\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4816",
        "Identifier": "I-2522-90",
        "Context": "USDOI\USGS",
        "Name": "Ammonia in Water by Colorimetry",
        "Description": "I-2522-90 ~ USGS-NWQL . Ammonia in Water by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8899\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4817",
        "Identifier": "I-2525",
        "Context": "USDOI\USGS",
        "Name": "Nitrogen, ammonia, dissolved, low ionic-strength, colorimetric, ASF",
        "Description": "I-2525 ~ USGS-NWQL . Nitrogen, ammonia, dissolved, low ionic-strength, colorimetric, ASF",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5480\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "834384",
        "Identifier": "I-2525-89",
        "Context": "USDOI\USGS",
        "Name": "Nutrients, low level, filtered water, salicylate-hypochlorite, colorimetric",
        "Description": "I-2525-89 ~ USGS-NWQL . Nutrients, low level, filtered water, salicylate-hypochlorite, colorimetric",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-08-18T18:05:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1432",
        "Identifier": "I-2540-90",
        "Context": "USDOI\USGS",
        "Name": "Nitrite-Nitrogen in Water by Colorimetry",
        "Description": "I-2540-90 ~ USGS-NWQL . Nitrite in Water by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8901\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4818",
        "Identifier": "I-2542",
        "Context": "USDOI\USGS",
        "Name": "Nitrogen, nitrite, dissolved, colorimetric, ASF, low ionic-strength",
        "Description": "I-2542 ~ USGS-NWQL . Nitrogen, nitrite, dissolved, colorimetric, ASF, low ionic-strength",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5481\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "834385",
        "Identifier": "I-2542-89",
        "Context": "USDOI\USGS",
        "Name": "Nutrients, low level, filtered water, colorimetric",
        "Description": "I-2542-89 ~ USGS-NWQL . Nutrients, low level, filtered water, salicylate-hypochlorite, colorimetric",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-08-18T18:05:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4819",
        "Identifier": "I-2545",
        "Context": "USDOI\USGS",
        "Name": "Nitrogen, nitrite plus nitrate, dissolved, colorimetric, ASF",
        "Description": "I-2545 ~ USGS-NWQL . Nitrogen, nitrite plus nitrate, dissolved, colorimetric, ASF",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5482\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4820",
        "Identifier": "I-2546-91",
        "Context": "USDOI\USGS",
        "Name": "Nitrate and Nitrite in Low Ionic-Strength Water by Colorimetry",
        "Description": "I-2546-91 ~ USGS-NWQL . Nitrate and Nitrite in Low Ionic-Strength Water by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8904\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3242",
        "Identifier": "I-2547-11",
        "Context": "USDOI\USGS",
        "Name": "Colorimetric Determination of Nitrate Plus Nitrite in Water by Enzymatic Reduction",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\12251\",
        "LastChangeDate": "2013-08-01T13:44:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5255",
        "Identifier": "I-2548-11",
        "Context": "USDOI\USGS",
        "Name": "Nitrate Plus Nitrite in Water by Enzymatic Reduction, Low Level, Auto Analyzer",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\12252\",
        "LastChangeDate": "2014-01-14T23:55:09 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4821",
        "Identifier": "I-2587-85",
        "Context": "USDOI\USGS",
        "Name": "pH of Water Samples, Automated",
        "Description": "I-2587-85 ~ USGS-NWQL . pH of Water Samples, Automated",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8906\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "884127",
        "Identifier": "I-2587-89",
        "Context": "USDOI\USGS",
        "Name": "pH, electrometric, glass-electrode; USGS TWRI 5-A1\1989, p.363",
        "Description": "I-2587-89 ~ USGS-NWQL ",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-01-11T12:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4822",
        "Identifier": "I-2598-85",
        "Context": "USDOI\USGS",
        "Name": "Phosphorus, orthoposphate in water by automated discrete colorimetry, phosphomolybdate",
        "Description": "I-2598-85 ~ USGS-NWQL . Phosphorus, orthoposphate in water by automated discrete colorimetry, phosphomolybdate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10456\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4823",
        "Identifier": "I-2601-90",
        "Context": "USDOI\USGS",
        "Name": "Phosphorus, Orthophosphate in Water by Colorimetry",
        "Description": "I-2601-90 ~ USGS-NWQL . Phosphorus, Orthophosphate in Water by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8907\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5791",
        "Identifier": "I-2602***retired*** I2602",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-2602 ~ Phosphorus, orthophosphate plus hydrolyzable, dissolved, colorimetric, ASF",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4824",
        "Identifier": "I-2606",
        "Context": "USDOI\USGS",
        "Name": "Phosphorus, orthophosphate plus hydrolyzable, dissolved, colorimetric, ASF",
        "Description": "I-2606 ~ USGS-NWQL . Phosphorus, orthophosphate plus hydrolyzable, dissolved, colorimetric, ASF",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5484\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "834386",
        "Identifier": "I-2606-89",
        "Context": "USDOI\USGS",
        "Name": "Nutrients, low level (LL), filtered water, phosphomolybdate, colorimetric",
        "Description": "I-2606-89 ~ USGS-NWQL . Nutrients, low level, filtered water, salicylate-hypochlorite, colorimetric",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-08-18T18:05:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4825",
        "Identifier": "I-2607",
        "Context": "USDOI\USGS",
        "Name": "Phosphorus, dissolved, low ionic-strength, colorimetric, ASF",
        "Description": "I-2607 ~ USGS-NWQL . Phosphorus, dissolved, low ionic-strength, colorimetric, ASF",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5485\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4826",
        "Identifier": "I-2610-91",
        "Context": "USDOI\USGS",
        "Name": "Phosphorus in Water by Kjeldahl Digestion and Colorimetric Finish, Filtered",
        "Description": "I-2610-91 ~ USGS-NWQL . Phosphorus in Water by Kjeldahl Digestion and Colorimetric Finish, Filtered",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8922\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4827",
        "Identifier": "I-2650-03",
        "Context": "USDOI\USGS",
        "Name": "Nitrogen and Phosphorus, Dissolved, in water by Alkaline Persulfate Digestion",
        "Description": "I-2650-03 ~ USGS-NWQL . Nitrogen and Phosphorus, Dissolved, in water by Alkaline Persulfate Digestion",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8885\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4828",
        "Identifier": "I-2667-85",
        "Context": "USDOI\USGS",
        "Name": "Selenium in water by atomic absorption, hydride, dissolved",
        "Description": "I-2667-85 ~ USGS-NWQL . Selenium in water by atomic absorption, hydride, dissolved",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8913\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4829",
        "Identifier": "I-2668-98",
        "Context": "USDOI\USGS",
        "Name": "Selenium in water by graphite furnace-atomic absorption spectrometry, dissolved",
        "Description": "I-2668-98 ~ USGS-NWQL . Selenium in water by graphite furnace-atomic absorption spectrometry, dissolved",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8892\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4830",
        "Identifier": "I-2700-85",
        "Context": "USDOI\USGS",
        "Name": "Silica, Colorimetric, Dissolved",
        "Description": "I-2700-85 ~ USGS-NWQL . Silica, Colorimetric, Dissolved",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8917\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4831",
        "Identifier": "I-2724",
        "Context": "USDOI\USGS",
        "Name": "Silver, dissolved, GFAA",
        "Description": "I-2724 ~ USGS-NWQL . Silver, dissolved, GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5486\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4832",
        "Identifier": "I-2725",
        "Context": "USDOI\USGS",
        "Name": "Silver, atomic absorption spectrophotometry, graphite furnace, LIS",
        "Description": "I-2725 ~ USGS-NWQL . Silver, atomic absorption spectrophotometry, graphite furnace, LIS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5487\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4833",
        "Identifier": "I-2725-93 (HGA)",
        "Context": "USDOI\USGS",
        "Name": "I-2725-93 HGA  ~ Silver in Water by Atomic Absorption Spectrophotmetry, Graphite Furnace, Low Ionic Strength",
        "Description": "I-2725-93 (HGA) ~ USGS-NWQL . Silver in Water by Atomic Absorption Spectrophotmetry, Graphite Furnace, Low Ionic Strength",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8966\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4834",
        "Identifier": "I-2725-93 (THGA)",
        "Context": "USDOI\USGS",
        "Name": "I-2725-93 THGA  ~ Silver in Water by Atomic Absorption Spectrophotmetry, Graphite Furnace, Low Ionic Strength",
        "Description": "I-2725-93 (THGA) ~ USGS-NWQL . Silver in Water by Atomic Absorption Spectrophotmetry, Graphite Furnace, Low Ionic Strength",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8967\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4835",
        "Identifier": "I-2781-85",
        "Context": "USDOI\USGS",
        "Name": "Specific Conductance of Water, Automated",
        "Description": "I-2781-85 ~ USGS-NWQL . Specific Conductance of Water, Automated",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8921\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5792",
        "Identifier": "I-2880***retired*** I2880",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-2880 ~ Vanadium, dissolved, colorimetry",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4836",
        "Identifier": "I-3051-85",
        "Context": "USDOI\USGS",
        "Name": "Aluminum in water by atomic absorption spectrometric, direct aspiration",
        "Description": "I-3051-85 ~ USGS-NWQL . Aluminum in water by atomic absorption spectrometric, direct aspiration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9603\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5793",
        "Identifier": "I-3054***retired*** I3054",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3054 ~ Aluminum, total recoverable, water, DCP",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5794",
        "Identifier": "I-3055***retired*** I3055",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3055 ~ Antimony, total, water, hydride _AA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4837",
        "Identifier": "I-3060-85",
        "Context": "USDOI\USGS",
        "Name": "Arsenic, total, in water by colorimetric, silver diethyldithiocarbamate",
        "Description": "I-3060-85 ~ USGS-NWQL . Arsenic, total, in water by colorimetric, silver diethyldithiocarbamate",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9608\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4838",
        "Identifier": "I-3062-85",
        "Context": "USDOI\USGS",
        "Name": "Arsenic, total, in water by atomic absorption spectrometric, hydride",
        "Description": "I-3062-85 ~ USGS-NWQL . Arsenic, total, in water by atomic absorption spectrometric, hydride",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9616\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5795",
        "Identifier": "I-3084***retired*** I3084",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3084 ~ Barium, total-recoverable, water, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5796",
        "Identifier": "I-3095***retired*** I3095",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3095 ~ Beryllium, total-recoverable, water, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4839",
        "Identifier": "I-3112-85",
        "Context": "USDOI\USGS",
        "Name": "Boron in water by colorimetric, curcumin",
        "Description": "I-3112-85 ~ USGS-NWQL . Boron in water by colorimetric, curcumin",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9620\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5797",
        "Identifier": "I-3135***retired*** I3135",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3135 ~ Cadmium, total-recoverable, water, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4840",
        "Identifier": "I-3136-85",
        "Context": "USDOI\USGS",
        "Name": "Cadmium in water by AAS, chelation-extraction",
        "Description": "I-3136-85 ~ USGS-NWQL . Cadmium in water by AAS, chelation-extraction",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9621\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5798",
        "Identifier": "I-3152***retired*** I3152",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3152 ~ Calcium, total-recoverable, water, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5799",
        "Identifier": "I-3153***retired*** I3153",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3153 ~ Calcium, total-recoverable, water, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4841",
        "Identifier": "I-3229-87",
        "Context": "USDOI\USGS",
        "Name": "Chromium in Water by Atomic Emission, Whole Water Recoverable",
        "Description": "I-3229-87 ~ USGS-NWQL . Chromium in Water by Atomic Emission, Whole Water Recoverable",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8951\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4842",
        "Identifier": "I-3233",
        "Context": "USDOI\USGS",
        "Name": "Chromium, whole-water-recoverable, water, GFAA",
        "Description": "I-3233 ~ USGS-NWQL . Chromium, whole-water-recoverable, water, GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5547\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4843",
        "Identifier": "I-3236-85",
        "Context": "USDOI\USGS",
        "Name": "Chromium, total recoverable, in water by atomic absorption spectrometric, direct aspiration",
        "Description": "I-3236-85 ~ USGS-NWQL . Chromium, total recoverable, in water by atomic absorption spectrometric, direct aspiration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9612\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5800",
        "Identifier": "I-3239***retired*** I3239",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3239 ~ Cobalt, total-recoverable, water, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5801",
        "Identifier": "I-3270***retired*** I3270",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3270 ~ Copper, whole water recoverable by FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4844",
        "Identifier": "I-3271-85",
        "Context": "USDOI\USGS",
        "Name": "Copper, total recoverable, in water by atomic absorption spectrometric, chelation-extraction",
        "Description": "I-3271-85 ~ USGS-NWQL . Copper, total recoverable, in water by atomic absorption spectrometric, chelation-extraction",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9613\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5802",
        "Identifier": "I-3300***retired*** I3300",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3300 ~ Cyanide in Water by Colorimetry",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4845",
        "Identifier": "I-3300-85",
        "Context": "USDOI\USGS",
        "Name": "Cyanide, Colorimetric, Pyridine-Pyrazolone, Total",
        "Description": "I-3300-85 ~ USGS-NWQL . Cyanide, Colorimetric, Pyridine-Pyrazolone, Total",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8903\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5803",
        "Identifier": "I-3381***retired*** I3381",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3381 ~ Iron, water, whole water recoverable; FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5804",
        "Identifier": "I-3399***retired*** I3399",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3399 ~ Lead, total recoverable, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5805",
        "Identifier": "I-3425***retired*** I3425",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3425 ~ Lithium, total recoverable, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5806",
        "Identifier": "I-3447***retired*** I3447",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3447 ~ Magnesium, total recoverable, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5807",
        "Identifier": "I-3448***retired*** I3448",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3448 ~ Magnesium, total recoverable, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5808",
        "Identifier": "I-3454***retired*** I3454",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3454 ~ Manganese, total recoverable, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5809",
        "Identifier": "I-3462***retired*** I3462",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3462 ~ Mercury, total recoverable, CVFAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4846",
        "Identifier": "I-3486-95",
        "Context": "USDOI\USGS",
        "Name": "Extraction Procedure for Metals in Water by In-Bottle Acid Digestion",
        "Description": "I-3486-95 ~ USGS-NWQL . Extraction Procedure for Metals in Water by In-Bottle Acid Digestion",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8961\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4847",
        "Identifier": "I-3487-98",
        "Context": "USDOI\USGS",
        "Name": "Comparison of In-Bottle and Other Whole-Water Digestion Procedures",
        "Description": "I-3487-98 ~ USGS-NWQL . Comparison of In-Bottle and Other Whole-Water Digestion Procedures",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8929\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4848",
        "Identifier": "I-3490-85",
        "Context": "USDOI\USGS",
        "Name": "Molybdenum , total recoverable, in water by atomic absorption spectrometric, chelation-extraction",
        "Description": "I-3490-85 ~ USGS-NWQL . Molybdenum , total recoverable, in water by atomic absorption spectrometric, chelation-extraction",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9598\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4849",
        "Identifier": "I-3492-96",
        "Context": "USDOI\USGS",
        "Name": "Molybdenum in Water by Graphite Furnace Atomic Absorption Spectrophotometry, unfiltered",
        "Description": "I-3492-96 ~ USGS-NWQL . Molybdenum in Water by Graphite Furnace Atomic Absorption Spectrophotometry, unfiltered",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8948\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5810",
        "Identifier": "I-3499***retired*** I3499",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3499 ~ Nickel, total recoverable FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4850",
        "Identifier": "I-3520-85",
        "Context": "USDOI\USGS",
        "Name": "Nitrogen, ammonia in water by colorimetric, distillation-nesslerization",
        "Description": "I-3520-85 ~ USGS-NWQL . Nitrogen, ammonia in water by colorimetric, distillation-nesslerization",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9619\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4851",
        "Identifier": "I-3560-85",
        "Context": "USDOI\USGS",
        "Name": "Chemical oxygen demand (COD), total, in water by titrimetric, dichromate oxidation",
        "Description": "I-3560-85 ~ USGS-NWQL . Chemical oxygen demand (COD), total, in water by titrimetric, dichromate oxidation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9604\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4852",
        "Identifier": "I-3630-85",
        "Context": "USDOI\USGS",
        "Name": "Potassium in Water by Atomic Absorption Spectrometry, Total Recoverable",
        "Description": "I-3630-85 ~ USGS-NWQL . Potassium in Water by Atomic Absorption Spectrometry, Total Recoverable",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8895\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5811",
        "Identifier": "I-3631***retired*** I3631",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3631 ~ Potassium, total recoverable, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4853",
        "Identifier": "I-3667-85",
        "Context": "USDOI\USGS",
        "Name": "Selenium, total, in water by atomic absorption spectrometric, hydride",
        "Description": "I-3667-85 ~ USGS-NWQL . Selenium, total, in water by atomic absorption spectrometric, hydride",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9606\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4854",
        "Identifier": "I-3720-85",
        "Context": "USDOI\USGS",
        "Name": "Silver in water by AAS, chelation-extraction",
        "Description": "I-3720-85 ~ USGS-NWQL . Silver in water by AAS, chelation-extraction",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9622\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4855",
        "Identifier": "I-3735",
        "Context": "USDOI\USGS",
        "Name": "Sodium, total recoverable, atomic absorption spectrometric",
        "Description": "I-3735 ~ USGS-NWQL . Sodium, total recoverable, atomic absorption spectrometric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5491\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5812",
        "Identifier": "I-3736***retired*** I3736",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3736 ~ Sodium, total recoverable, atomic absorption spectrometric",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5236",
        "Identifier": "I-3752-85",
        "Context": "USDOI\USGS",
        "Name": "Fixed Solids",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-11-15T13:44:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4856",
        "Identifier": "I-3753",
        "Context": "USDOI\USGS",
        "Name": "Solids, volatile-on-ignition, total, gravimetric",
        "Description": "I-3753 ~ USGS-NWQL . Solids, volatile-on-ignition, total, gravimetric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5494\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5243",
        "Identifier": "I-3765-85",
        "Context": "USDOI\USGS",
        "Name": "Solids, residue at 105°C",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-11-18T13:44:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5237",
        "Identifier": "I-3766-85",
        "Context": "USDOI\USGS",
        "Name": "Solids, nonvolatile-on-ignition, suspended, calculation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-11-15T13:44:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4857",
        "Identifier": "I-3767",
        "Context": "USDOI\USGS",
        "Name": "Solids, volatile-on-ignition, suspended, gravimetric",
        "Description": "I-3767 ~ USGS-NWQL . Solids, volatile-on-ignition, suspended, gravimetric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5496\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5238",
        "Identifier": "I-3767-85",
        "Context": "USDOI\USGS",
        "Name": "Solids, volatile-on-ignition, suspended, gravimetric",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-11-15T13:44:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4858",
        "Identifier": "I-3800",
        "Context": "USDOI\USGS",
        "Name": "Strontium, total recoverable, atomic absorption spectrometric",
        "Description": "I-3800 ~ USGS-NWQL . Strontium, total recoverable, atomic absorption spectrometric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5497\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5813",
        "Identifier": "I-3840***retired*** I3840",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-3840 ~ Sulfide, total, iodometric",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4859",
        "Identifier": "I-3850-78",
        "Context": "USDOI\USGS",
        "Name": "Tin, total recoverable, in water by direct atomic absorption spectrometric",
        "Description": "I-3850-78 ~ USGS-NWQL . Tin, total recoverable, in water by direct atomic absorption spectrometric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9595\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4860",
        "Identifier": "I-3900",
        "Context": "USDOI\USGS",
        "Name": "Zinc, total recoverable, atomic absorption spectrometric",
        "Description": "I-3900 ~ USGS-NWQL . Zinc, total recoverable, atomic absorption spectrometric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5500\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4861",
        "Identifier": "I-4020-05",
        "Context": "USDOI\USGS",
        "Name": "Elements (unfiltered) in water by cICP-MS",
        "Description": "I-4020-05 ~ USGS-NWQL . Elements (unfiltered) in water by cICP-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9353\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5814",
        "Identifier": "I-4062***retired*** I4062",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-4062 ~ Arsenic, total, water, hydride _AA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4862",
        "Identifier": "I-4063-98",
        "Context": "USDOI\USGS",
        "Name": "Arsenic in water by graphite furnace-atomic absorption spectrometry, whole-water recoverable",
        "Description": "I-4063-98 ~ USGS-NWQL . Arsenic in water by graphite furnace-atomic absorption spectrometry, whole-water recoverable",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8919\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4863",
        "Identifier": "I-4138-89",
        "Context": "USDOI\USGS",
        "Name": "Cadmium in Water by GFAA, Whole Water Recoverable",
        "Description": "I-4138-89 ~ USGS-NWQL . Cadmium in Water by GFAA, Whole Water Recoverable",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8894\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4864",
        "Identifier": "I-4243",
        "Context": "USDOI\USGS",
        "Name": "Cobalt, whole-water-recoverable, water, GFAA",
        "Description": "I-4243 ~ USGS-NWQL . Cobalt, whole-water-recoverable, water, GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5550\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4865",
        "Identifier": "I-4274",
        "Context": "USDOI\USGS",
        "Name": "Copper, whole water recoverable by GFAA",
        "Description": "I-4274 ~ USGS-NWQL . Copper, whole water recoverable by GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5683\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5815",
        "Identifier": "I-4302***retired*** I4302",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-4302 ~ Cyanide, whole water recoverable; colorimetric",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4866",
        "Identifier": "I-4327-85",
        "Context": "USDOI\USGS",
        "Name": "Fluoride Ion in Water by Ion-Selective Electrode, Total",
        "Description": "I-4327-85 ~ USGS-NWQL . Fluoride Ion in Water by Ion-Selective Electrode, Total",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8954\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4867",
        "Identifier": "I-4403",
        "Context": "USDOI\USGS",
        "Name": "Lead, whole water recoverable, GFAA",
        "Description": "I-4403 ~ USGS-NWQL . Lead, whole water recoverable, GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5672\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4868",
        "Identifier": "I-4464-01",
        "Context": "USDOI\USGS",
        "Name": "Organic plus Inorganic Mercury in Unfiltered Natural Water by Cold-Vapor AFS",
        "Description": "I-4464-01 ~ USGS-NWQL . Organic plus Inorganic Mercury in Unfiltered Natural Water by Cold-Vapor AFS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8936\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "884126",
        "Identifier": "I-4471-92",
        "Context": "USDOI\USGS",
        "Name": "Determination of Elements in Whole-Water Digests Using Inductively Coupled Plasma-Optical Emission Spectrometry and Inductively Coupled Plasma-Mass Spectrometry",
        "Description": "I-4471-92 ~ USGS-NWQL ",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-01-11T12:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3222",
        "Identifier": "I-4471-97",
        "Context": "USDOI\USGS",
        "Name": "Metals in Water by Inductively Coupled Plasma\Optical Emission Spectrometry",
        "Description": "I-4471-97 ~ USGS-NWQL . Metals in Water by Inductively Coupled Plasma\Optical Emission Spectrometry, Whole-Water Recoverable",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8935\",
        "LastChangeDate": "2012-07-02T16:56:46 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "884125",
        "Identifier": "I-4472-92",
        "Context": "USDOI\USGS",
        "Name": "Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory - Determination of Elements in Whole-Water Digests Using Inductively Coupled Plasma-Optical Emission Spectrometry a",
        "Description": "I-4472-92 ~ USGS-NWQL ",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-01-11T12:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4869",
        "Identifier": "I-4472-97",
        "Context": "USDOI\USGS",
        "Name": "Metals in Water by Inductively Coupled Plasma\Mass Spectrometer, Whole-Water Recoverable",
        "Description": "I-4472-97 ~ USGS-NWQL . Metals in Water by Inductively Coupled Plasma\Mass Spectrometer, Whole-Water Recoverable",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8974\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4870",
        "Identifier": "I-4503",
        "Context": "USDOI\USGS",
        "Name": "Nickel, whole water recoverable, GFAA",
        "Description": "I-4503 ~ USGS-NWQL . Nickel, whole water recoverable, GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5501\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4871",
        "Identifier": "I-4515-91",
        "Context": "USDOI\USGS",
        "Name": "Ammonium plus organic nitrogen, total",
        "Description": "I-4515-91 ~ USGS-NWQL . Ammonium plus organic nitrogen, total",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8940\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4872",
        "Identifier": "I-4523-85",
        "Context": "USDOI\USGS",
        "Name": "Nitrogen, ammonia, total, in water by colorimetric, indophenol, automated-segmented flow",
        "Description": "I-4523-85 ~ USGS-NWQL . Nitrogen, ammonia, total, in water by colorimetric, indophenol, automated-segmented flow",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9607\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3162",
        "Identifier": "I-4540-85",
        "Context": "USDOI\USGS",
        "Name": "Nitrogen, nitrite, total, in water by colorimetric, diazotization, automated-segmented flow",
        "Description": "I-4540-85 ~ USGS-NWQL . Nitrogen, nitrite, total, in water by colorimetric, diazotization, automated-segmented flow",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9602\",
        "LastChangeDate": "2009-03-26T10:39:23 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4873",
        "Identifier": "I-4545-85",
        "Context": "USDOI\USGS",
        "Name": "Nitrogen, nitrite plus nitrate, total, in water by colorimetric, cadmium reduction-diazotization, automated-segmented fl",
        "Description": "I-4545-85 ~ USGS-NWQL . Nitrogen, nitrite plus nitrate, total, in water by colorimetric, cadmium reduction-diazotization, automated-segmented flow",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9599\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4874",
        "Identifier": "I-4551-78",
        "Context": "USDOI\USGS",
        "Name": "Nitrogen, ammonia plus organic, total, in water by automated, colorimetric, digestion-distillation-indophenol",
        "Description": "I-4551-78 ~ USGS-NWQL . Nitrogen, ammonia plus organic, total, in water by automated, colorimetric, digestion-distillation-indophenol",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9594\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4875",
        "Identifier": "I-4600-85",
        "Context": "USDOI\USGS",
        "Name": "Phosphorus, total, in water by colorimetric, phosphomolybdate, automated-segmented flow",
        "Description": "I-4600-85 ~ USGS-NWQL . Phosphorus, total, in water by colorimetric, phosphomolybdate, automated-segmented flow",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9605\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4876",
        "Identifier": "I-4601-85",
        "Context": "USDOI\USGS",
        "Name": "Phosphorus, orthophosphate, total, in water by colorimetric, phosphomolybdate, automated-segmented flow",
        "Description": "I-4601-85 ~ USGS-NWQL . Phosphorus, orthophosphate, total, in water by colorimetric, phosphomolybdate, automated-segmented flow",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9614\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4877",
        "Identifier": "I-4602",
        "Context": "USDOI\USGS",
        "Name": "Phosphorus, orthophosphate plus hydrolyzable, total, colorimetric, ASF",
        "Description": "I-4602 ~ USGS-NWQL . Phosphorus, orthophosphate plus hydrolyzable, total, colorimetric, ASF",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5502\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4878",
        "Identifier": "I-4607",
        "Context": "USDOI\USGS",
        "Name": "Phosphorus, total, colorimetric, ASF",
        "Description": "I-4607 ~ USGS-NWQL . Phosphorus, total, colorimetric, ASF",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5503\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4879",
        "Identifier": "I-4610-91",
        "Context": "USDOI\USGS",
        "Name": "Phosphorus in Water by Kjeldahl Digestion and Colorimetric Finish, Unfiltered",
        "Description": "I-4610-91 ~ USGS-NWQL . Phosphorus in Water by Kjeldahl Digestion and Colorimetric Finish, Unfiltered",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8893\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3038",
        "Identifier": "I-4650-03",
        "Context": "USDOI\USGS",
        "Name": "Nitrogen and Phosphorus, Total, Whole-water, Alkaline Persulfate Digest",
        "Description": "I-4650-03 ~ USGS-NWQL . Nitrogen and Phosphorus, Total, in whole-water by Alkaline Persulfate Digestion",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8883\",
        "LastChangeDate": "2007-02-20T13:20:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4880",
        "Identifier": "I-4667-85",
        "Context": "USDOI\USGS",
        "Name": "Selenium in water by atomic absorption, hydride, total",
        "Description": "I-4667-85 ~ USGS-NWQL . Selenium in water by atomic absorption, hydride, total",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8905\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4881",
        "Identifier": "I-4668-98",
        "Context": "USDOI\USGS",
        "Name": "Selenium in water by graphite furnace-atomic absorption spectrometry, whole-water recoverable",
        "Description": "I-4668-98 ~ USGS-NWQL . Selenium in water by graphite furnace-atomic absorption spectrometry, whole-water recoverable",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8956\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4882",
        "Identifier": "I-4724",
        "Context": "USDOI\USGS",
        "Name": "Silver, whole water recoverable, GFAA",
        "Description": "I-4724 ~ USGS-NWQL . Silver, whole water recoverable, GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5504\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4883",
        "Identifier": "I-5020-05",
        "Context": "USDOI\USGS",
        "Name": "Elements in sediment or soil (recoverable) by cICP-MS",
        "Description": "I-5020-05 ~ USGS-NWQL . Elements in sediment or soil (recoverable) by cICP-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9354\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5816",
        "Identifier": "I-5055***retired*** I5055",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-5055 ~ Antimony, total in bottom material, various, hydride_AA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5817",
        "Identifier": "I-5084***retired*** I5084",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-5084 ~ Barium, recoverable-from-bottom-material, dry wt",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5818",
        "Identifier": "I-5095***retired*** I5095",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-5095 ~ Beryllium, recoverable- from -bottom-material, various, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5819",
        "Identifier": "I-5135***retired*** I5135",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-5135 ~ Cadmium, recoverable-from-bottom-material, various, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5820",
        "Identifier": "I-5152***retired*** I5152",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-5152 ~ Calcium, recoverable-from-bottom-material, various, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5821",
        "Identifier": "I-5239***retired*** I5239",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-5239 ~ Cobalt, recoverable-from-bottom-material, various, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5822",
        "Identifier": "I-5270***retired*** I5270",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-5270 ~ Copper, recoverable-from-bottom-material, dry wt, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4884",
        "Identifier": "I-5300-85",
        "Context": "USDOI\USGS",
        "Name": "Cyanide, Colorimetric, Pyridine-Pyrazolone, Bottom material",
        "Description": "I-5300-85 ~ USGS-NWQL . Cyanide, Colorimetric, Pyridine-Pyrazolone, Bottom material",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8938\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5823",
        "Identifier": "I-5381***retired*** I5381",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-5381 ~ Iron, recoverable-from-bottom-material, dry wt, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5824",
        "Identifier": "I-5399***retired*** I5399",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-5399 ~ Lead, recoverable-from-bottom-material, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5825",
        "Identifier": "I-5425***retired*** I5425",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-5425 ~ Lithium, recoverable-from-bottom-material, dry wt, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5826",
        "Identifier": "I-5447***retired*** I5447",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-5447 ~ Magnesium, recoverable-from-bottom-material, dry wt, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5827",
        "Identifier": "I-5454***retired*** I5454",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-5454 ~ Manganese, recoverable-from-bottom-material, dry wt, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5828",
        "Identifier": "I-5462***retired*** I5462",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-5462 ~ Mercury, recoverable-from-bottom-material, CVFAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5829",
        "Identifier": "I-5499***retired*** I5499",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-5499 ~ Nickel, recoverable-from-bottom-material, dry wt, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5830",
        "Identifier": "I-5553***retired*** I5553",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-5553 ~ Nitrogen, ammonia plus organic, total-in-bottom-material, dry wt, titration",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4885",
        "Identifier": "I-5735",
        "Context": "USDOI\USGS",
        "Name": "Sodium, recoverable-from-bottom-material, dry wt, atomic absorption spectrometric",
        "Description": "I-5735 ~ USGS-NWQL . Sodium, recoverable-from-bottom-material, dry wt, atomic absorption spectrometric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5507\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4886",
        "Identifier": "I-5753",
        "Context": "USDOI\USGS",
        "Name": "Solids, volatile-on-ignition, total-in-bottom-material, dry wt, gravimetric",
        "Description": "I-5753 ~ USGS-NWQL . Solids, volatile-on-ignition, total-in-bottom-material, dry wt, gravimetric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5508\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4887",
        "Identifier": "I-5800",
        "Context": "USDOI\USGS",
        "Name": "Strontium, recoverable-from-bottom-material, dry wt, atomic absorption spectrometric",
        "Description": "I-5800 ~ USGS-NWQL . Strontium, recoverable-from-bottom-material, dry wt, atomic absorption spectrometric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5509\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4888",
        "Identifier": "I-5830-85",
        "Context": "USDOI\USGS",
        "Name": "Postassium in Bottom Materials by Atomic Absorption Spectrometry, Total Recoverable, Bottom Material",
        "Description": "I-5830-85 ~ USGS-NWQL . Postassium in Bottom Materials by Atomic Absorption Spectrometry, Total Recoverable, Bottom Material",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8897\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4889",
        "Identifier": "I-5900",
        "Context": "USDOI\USGS",
        "Name": "Zinc, recoverable-from-bottom-material, dry wt, atomic absorption spectrometric",
        "Description": "I-5900 ~ USGS-NWQL . Zinc, recoverable-from-bottom-material, dry wt, atomic absorption spectrometric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5510\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5831",
        "Identifier": "I-6062***retired*** I6062",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-6062 ~ Arsenic, total in bottom material, various, hydride _AA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4890",
        "Identifier": "I-6063-98",
        "Context": "USDOI\USGS",
        "Name": "Arsenic, total-recoverable in bed-sediment, dry weight, by graphite furnace-atomic absorption spectrometry",
        "Description": "I-6063-98 ~ USGS-NWQL . Arsenic, total-recoverable in bed-sediment, dry weight, by graphite furnace-atomic absorption spectrometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8910\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5832",
        "Identifier": "I-6302***retired*** I6302",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-6302 ~ Cyanide, recoverable-from-bottom-material, dry wt, colorimetric",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4891",
        "Identifier": "I-6463-86",
        "Context": "USDOI\USGS",
        "Name": "Mercury, Total-in-Sediment, Atomic Absorption, Spectrophotometry, Flameless, Direct",
        "Description": "I-6463-86 ~ USGS-NWQL . Mercury, Total-in-Sediment, Atomic Absorption, Spectrophotometry, Flameless, Direct",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8889\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4892",
        "Identifier": "I-6522-90",
        "Context": "USDOI\USGS",
        "Name": "Ammonia in Sediment by Colorimetry",
        "Description": "I-6522-90 ~ USGS-NWQL . Ammonia in Sediment by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8908\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4893",
        "Identifier": "I-6545",
        "Context": "USDOI\USGS",
        "Name": "Nitrogen, nitrite plus nitrate, total-in-bottom-material, dry weight, colorimetric, ASF",
        "Description": "I-6545 ~ USGS-NWQL . Nitrogen, nitrite plus nitrate, total-in-bottom-material, dry weight, colorimetric, ASF",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5511\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4894",
        "Identifier": "I-6600-88",
        "Context": "USDOI\USGS",
        "Name": "Phosphorus, Total-in-Bottom Material, by Colorimetry",
        "Description": "I-6600-88 ~ USGS-NWQL . Phosphorus, Total-in-Bottom Material, by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8890\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4895",
        "Identifier": "I-6667-85",
        "Context": "USDOI\USGS",
        "Name": "Selenium in bottom materials by atomic absorption spectrometric, hydride, bottom materials",
        "Description": "I-6667-85 ~ USGS-NWQL . Selenium in bottom materials by atomic absorption spectrometric, hydride, bottom materials",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8902\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4896",
        "Identifier": "I-6668-98",
        "Context": "USDOI\USGS",
        "Name": "Selenium, total-recoverable in bed-sediment, dry weight, by graphite furnace-atomic absorption spectrometry",
        "Description": "I-6668-98 ~ USGS-NWQL . Selenium, total-recoverable in bed-sediment, dry weight, by graphite furnace-atomic absorption spectrometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8957\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5833",
        "Identifier": "I-7054***retired*** I7054",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-7054 ~ Aluminum, suspended recoverable, water, DCP",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5834",
        "Identifier": "I-7055***retired*** I7055",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-7055 ~ Antimony, suspended total, water, hydride _AA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5835",
        "Identifier": "I-7062***retired*** I7062",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-7062 ~ Arsenic, suspended-total, water, hydride_AA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5836",
        "Identifier": "I-7084***retired*** I7084",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-7084 ~ Barium, suspended-recoverable, water, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5837",
        "Identifier": "I-7095***retired*** I7095",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-7095 ~ Beryllium, suspended-recoverable, water, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5838",
        "Identifier": "I-7135***retired*** I7135",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-7135 ~ Cadmium, suspended-recoverable, water, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5839",
        "Identifier": "I-7152***retired*** I7152",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-7152 ~ Calcium, suspended-recoverable, water, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4897",
        "Identifier": "I-7229-87",
        "Context": "USDOI\USGS",
        "Name": "Chromium in Suspend Sediment by Atomic Emission (Calculation)",
        "Description": "I-7229-87 ~ USGS-NWQL . Chromium in Suspend Sediment by Atomic Emission (Calculation)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8891\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5840",
        "Identifier": "I-7239***retired*** I7239",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-7239 ~ Cobalt, suspended-recoverable, water, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5841",
        "Identifier": "I-7270***retired*** I7270",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-7270 ~ Copper, suspended recoverable from water; by FLAA.",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4898",
        "Identifier": "I-7327-85",
        "Context": "USDOI\USGS",
        "Name": "Fluoride Ion in Sediment by Ion-Selective Electrode, Suspended Total (Calculation)",
        "Description": "I-7327-85 ~ USGS-NWQL . Fluoride Ion in Sediment by Ion-Selective Electrode, Suspended Total (Calculation)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8911\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5842",
        "Identifier": "I-7381***retired*** I7381",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-7381 ~ Iron, water, suspended recoverable by FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5843",
        "Identifier": "I-7399***retired*** I7399",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-7399 ~ Lead, suspended recoverable, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5844",
        "Identifier": "I-7425***retired*** I7425",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-7425 ~ Lithium, suspended recoverable, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5845",
        "Identifier": "I-7447***retired*** I7447",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-7447 ~ Magnesium, suspended recoverable, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5846",
        "Identifier": "I-7454***retired*** I7454",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-7454 ~ Manganese, suspended recoverable, FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5847",
        "Identifier": "I-7462***retired*** I7462",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-7462 ~ Mercury, suspended recoverable, CVFAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5848",
        "Identifier": "I-7499***retired*** I7499",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***I-7499 ~ Nickel, suspended recoverable, calculation from FLAA",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4899",
        "Identifier": "I-7667-85",
        "Context": "USDOI\USGS",
        "Name": "Selenium in Water by Atomic Absorption, Hydride, Suspended, Total (Calculation)",
        "Description": "I-7667-85 ~ USGS-NWQL . Selenium in Water by Atomic Absorption, Hydride, Suspended, Total (Calculation)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8900\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4900",
        "Identifier": "I-7800",
        "Context": "USDOI\USGS",
        "Name": "Strontium, suspended recoverable, atomic absorption spectrometric",
        "Description": "I-7800 ~ USGS-NWQL . Strontium, suspended recoverable, atomic absorption spectrometric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5513\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4901",
        "Identifier": "I-7900",
        "Context": "USDOI\USGS",
        "Name": "Zinc, suspended recoverable, atomic absorption spectrometric",
        "Description": "I-7900 ~ USGS-NWQL . Zinc, suspended recoverable, atomic absorption spectrometric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5514\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4902",
        "Identifier": "I-9020-05",
        "Context": "USDOI\USGS",
        "Name": "Elements in biota by cICP-MS",
        "Description": "I-9020-05 ~ USGS-NWQL . Elements in biota by cICP-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9357\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1335",
        "Identifier": "I1020",
        "Context": "USDOI\USGS",
        "Name": "Acidity in Water by Titration",
        "Description": "I-1020 ~ USGS-NWQL . Acidity, water, titrimetric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5522\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1336",
        "Identifier": "I1030",
        "Context": "USDOI\USGS",
        "Name": "Alkalinity in Water by Titration",
        "Description": "https:\\www.nemi.gov\methods\method_summary\9596\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1337",
        "Identifier": "I1051",
        "Context": "USDOI\USGS",
        "Name": "Aluminum in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1338",
        "Identifier": "I1052",
        "Context": "USDOI\USGS",
        "Name": "Aluminum in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1339",
        "Identifier": "I1054",
        "Context": "USDOI\USGS",
        "Name": "I-1054 ~ Aluminum by D-C Plasma Spectrometry",
        "Description": "I-1054 ~ USGS-NWQL . Aluminum, dissolved, water, DCP",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5523\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1340",
        "Identifier": "I1055",
        "Context": "USDOI\USGS",
        "Name": "I-1055 ~ Antimony in Water by Hydride AA",
        "Description": "I-1055 ~ USGS-NWQL . Antimony, dissolved, water, hydride_AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5524\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1341",
        "Identifier": "I1060",
        "Context": "USDOI\USGS",
        "Name": "Arsenic in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1342",
        "Identifier": "I1062",
        "Context": "USDOI\USGS",
        "Name": "Arsenic in Water by HYDAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1343",
        "Identifier": "I1084",
        "Context": "USDOI\USGS",
        "Name": "I-1084 ~ Barium in Water by FLAA",
        "Description": "I-1084 ~ USGS-NWQL . Barium, dissolved, water, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5525\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1344",
        "Identifier": "I1095",
        "Context": "USDOI\USGS",
        "Name": "I-1095 ~ Beryllium in Water by FLAA",
        "Description": "I-1095 ~ USGS-NWQL . Beryllium, dissolved, water, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5526\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1345",
        "Identifier": "I1110",
        "Context": "USDOI\USGS",
        "Name": "Boron in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1346",
        "Identifier": "I1112",
        "Context": "USDOI\USGS",
        "Name": "Boron in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1347",
        "Identifier": "I1114",
        "Context": "USDOI\USGS",
        "Name": "I-1114 ~ Boron in Water by DC Plasma Spectrometry",
        "Description": "I-1114 ~ USGS-NWQL . Boron, dissolved, water, DCP",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5527\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1348",
        "Identifier": "I1125",
        "Context": "USDOI\USGS",
        "Name": "Bromide in Water by Titration",
        "Description": "https:\\www.nemi.gov\methods\method_summary\9609\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1349",
        "Identifier": "I1135",
        "Context": "USDOI\USGS",
        "Name": "I-1135 ~ Cadmium in Water by FLAA",
        "Description": "I-1135 ~ USGS-NWQL . Cadmium, dissolved, water, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5528\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1350",
        "Identifier": "I1136",
        "Context": "USDOI\USGS",
        "Name": "Cadmium in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1351",
        "Identifier": "I1137",
        "Context": "USDOI\USGS",
        "Name": "I-1137 ~ Cadmium in Water by GFAA",
        "Description": "I-1137 ~ USGS-NWQL . Cadmium dissolved in Water by GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4759\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1352",
        "Identifier": "I1152",
        "Context": "USDOI\USGS",
        "Name": "I-1152 ~ Calcium in Water by FLAA",
        "Description": "I-1152 ~ USGS-NWQL . Calcium, dissolved, water, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5529\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1353",
        "Identifier": "I1183",
        "Context": "USDOI\USGS",
        "Name": "Chloride in Water by Titration",
        "Description": "https:\\www.nemi.gov\methods\method_summary\9597\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1354",
        "Identifier": "I1184",
        "Context": "USDOI\USGS",
        "Name": "Chloride in Water by Titration",
        "Description": "https:\\www.nemi.gov\methods\method_summary\9610\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1355",
        "Identifier": "I1187",
        "Context": "USDOI\USGS",
        "Name": "Chloride in Water by Colorimetry",
        "Description": "https:\\www.nemi.gov\methods\method_summary\9601\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1356",
        "Identifier": "I1230",
        "Context": "USDOI\USGS",
        "Name": "Hexavalent Chromium by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1357",
        "Identifier": "I1232",
        "Context": "USDOI\USGS",
        "Name": "I-1232 ~ Hexavalent Chromium in Water by FLAA",
        "Description": "I-1232 ~ USGS-NWQL . Chromium, hexavalent, dissolved, water, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5530\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1358",
        "Identifier": "I1235",
        "Context": "USDOI\USGS",
        "Name": "I-1235 ~ Chromium in Water by GFAA",
        "Description": "I-1235 ~ USGS-NWQL . Chromium, dissolved, water, GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5532\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1359",
        "Identifier": "I1236",
        "Context": "USDOI\USGS",
        "Name": "Chromium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1360",
        "Identifier": "I1238",
        "Context": "USDOI\USGS",
        "Name": "Chromium in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1361",
        "Identifier": "I1239",
        "Context": "USDOI\USGS",
        "Name": "I-1239 ~ Cobalt in Water by FLAA",
        "Description": "I-1239 ~ USGS-NWQL . Cobalt, dissolved, water, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5533\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1362",
        "Identifier": "I1240",
        "Context": "USDOI\USGS",
        "Name": "Cobalt in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1363",
        "Identifier": "I1241",
        "Context": "USDOI\USGS",
        "Name": "I-1241 ~ Cobalt in Water by GFAA",
        "Description": "I-1241 ~ USGS-NWQL . Cobalt, dissolved, water, GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5534\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1364",
        "Identifier": "I1250",
        "Context": "USDOI\USGS",
        "Name": "Color in Water by Visual Comparison",
        "Description": "I-1250 ~ USGS-NWQL . Color, water, VIS_COMP",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5535\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1365",
        "Identifier": "I1270",
        "Context": "USDOI\USGS",
        "Name": "I-1270 ~ Copper in Water by FLAA",
        "Description": "I-1270 ~ USGS-NWQL . Copper, dissolved in water by FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5646\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1366",
        "Identifier": "I1271",
        "Context": "USDOI\USGS",
        "Name": "Copper in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1367",
        "Identifier": "I1272",
        "Context": "USDOI\USGS",
        "Name": "I-1272 ~ Copper in Water by GFAA",
        "Description": "I-1272 ~ USGS-NWQL . Copper, dissolved in water by GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5647\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1368",
        "Identifier": "I1300",
        "Context": "USDOI\USGS",
        "Name": "Cyanide in Water by Colorimetry",
        "Description": "https:\\www.nemi.gov\methods\method_summary\8909\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1369",
        "Identifier": "I1325",
        "Context": "USDOI\USGS",
        "Name": "Fluoride in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1370",
        "Identifier": "I1327",
        "Context": "USDOI\USGS",
        "Name": "Fluoride in Water Using an ISE",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1371",
        "Identifier": "I1370",
        "Context": "USDOI\USGS",
        "Name": "Iodide in Water by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1372",
        "Identifier": "I1371",
        "Context": "USDOI\USGS",
        "Name": "Iodide in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1373",
        "Identifier": "I1381",
        "Context": "USDOI\USGS",
        "Name": "I-1381 ~ I-ron in Water by FLAA",
        "Description": "I-1381 ~ USGS-NWQL . Iron, dissolved in water by FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5649\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1374",
        "Identifier": "I1399",
        "Context": "USDOI\USGS",
        "Name": "I-1399 ~ Lead in Water by FLAA",
        "Description": "I-1399 ~ USGS-NWQL . Lead, dissolved, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5650\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1375",
        "Identifier": "I1400",
        "Context": "USDOI\USGS",
        "Name": "Lead in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1376",
        "Identifier": "I1401",
        "Context": "USDOI\USGS",
        "Name": "I-1401 ~ Lead in Water by GFAA",
        "Description": "I-1401 ~ USGS-NWQL . Lead, dissolved in water by GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5651\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1377",
        "Identifier": "I1425",
        "Context": "USDOI\USGS",
        "Name": "I-1425 ~ Lithium in Water by FLAA",
        "Description": "I-1425 ~ USGS-NWQL . Lithium, dissolved, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5652\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1378",
        "Identifier": "I1447",
        "Context": "USDOI\USGS",
        "Name": "I-1447 ~ Magnesium in Water by FLAA",
        "Description": "I-1447 ~ USGS-NWQL . Magnesium, dissolved, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5653\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1379",
        "Identifier": "I1454",
        "Context": "USDOI\USGS",
        "Name": "I-1454 ~ Manganese in Water by FLAA",
        "Description": "I-1454 ~ USGS-NWQL . Manganese, dissolved, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5654\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1380",
        "Identifier": "I1455",
        "Context": "USDOI\USGS",
        "Name": "I-1455 ~ Manganese in Water by GFAA",
        "Description": "I-1455 ~ USGS-NWQL . Manganese, dissolved, GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5655\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1381",
        "Identifier": "I1456",
        "Context": "USDOI\USGS",
        "Name": "I-1456 ~ Manganese in Water by Chelation and FLAA",
        "Description": "I-1456 ~ USGS-NWQL . Manganese, dissolved, chelation extraction, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5656\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1382",
        "Identifier": "I1462",
        "Context": "USDOI\USGS",
        "Name": "I-1462 ~ Mercury in Water by CVAA",
        "Description": "I-1462 ~ USGS-NWQL . Mercury, dissolved, CVFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5657\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1383",
        "Identifier": "I1472",
        "Context": "USDOI\USGS",
        "Name": "Metals in Water by ICP",
        "Description": "https:\\www.nemi.gov\methods\method_summary\4761\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1384",
        "Identifier": "I1490",
        "Context": "USDOI\USGS",
        "Name": "Molybdenum by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1385",
        "Identifier": "I1499",
        "Context": "USDOI\USGS",
        "Name": "I-1499 ~ Nickel in Water by FLAA",
        "Description": "I-1499 ~ USGS-NWQL . Nickel, dissolved, direct FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5470\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1386",
        "Identifier": "I1500",
        "Context": "USDOI\USGS",
        "Name": "Nickel in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1387",
        "Identifier": "I1501",
        "Context": "USDOI\USGS",
        "Name": "I-1501 ~ Nickel in Water by GFAA",
        "Description": "I-1501 ~ USGS-NWQL . Nickel, dissolved, low ionic-strength, GFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5471\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1388",
        "Identifier": "I1520",
        "Context": "USDOI\USGS",
        "Name": "Ammonia Nitrogen by Nesslerization",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1389",
        "Identifier": "I1524",
        "Context": "USDOI\USGS",
        "Name": "Ammonia Nitrogen in Water Using an ISE",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1390",
        "Identifier": "I1540",
        "Context": "USDOI\USGS",
        "Name": "Nitrite-Nitrogen in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1391",
        "Identifier": "I1550",
        "Context": "USDOI\USGS",
        "Name": "Ammonia plus Organic Nitrogen in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1392",
        "Identifier": "I1586",
        "Context": "USDOI\USGS",
        "Name": "Water pH",
        "Description": "I-1586 ~ USGS-NWQL . pH in Water by Electrometry Using a Glass-Electrode",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4762\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1393",
        "Identifier": "I1600",
        "Context": "USDOI\USGS",
        "Name": "Dissolved Phosphorus by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1394",
        "Identifier": "I1601",
        "Context": "USDOI\USGS",
        "Name": "Orthophosphate-Phosphorus by Colorimetry",
        "Description": "https:\\www.nemi.gov\methods\method_summary\10455\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1395",
        "Identifier": "I1602",
        "Context": "USDOI\USGS",
        "Name": "Orthophosphate plus Hydrolyzable Phosphorous",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1396",
        "Identifier": "I1630(S)",
        "Context": "USDOI\USGS",
        "Name": "I1630 S  ~ Potassium in Bottom Material by FLAA",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1397",
        "Identifier": "I1630(W)",
        "Context": "USDOI\USGS",
        "Name": "I1630 W  ~ Potassium in Water by FLAA",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1398",
        "Identifier": "I1667(S)",
        "Context": "USDOI\USGS",
        "Name": "I1667 S  ~ Selenium in Bottom Material by HYDAA",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1399",
        "Identifier": "I1667(W)",
        "Context": "USDOI\USGS",
        "Name": "I1667 W  ~ Selenium in Water by HYDAA",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1400",
        "Identifier": "I1700",
        "Context": "USDOI\USGS",
        "Name": "Silica in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1401",
        "Identifier": "I1702",
        "Context": "USDOI\USGS",
        "Name": "Silica in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1402",
        "Identifier": "I1720",
        "Context": "USDOI\USGS",
        "Name": "Silver in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1403",
        "Identifier": "I1735(S)",
        "Context": "USDOI\USGS",
        "Name": "I1735 S  ~ Sodium in Bottom Material by FLAA",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1404",
        "Identifier": "I1735(W)",
        "Context": "USDOI\USGS",
        "Name": "I1735 W  ~ Sodium in Water by FLAA",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1405",
        "Identifier": "I1749",
        "Context": "USDOI\USGS",
        "Name": "Residue by Evaporation and Gravimetric",
        "Description": "I-1749 ~ USGS-NWQL . Solids, residue at 105 degrees C, dissolved, gravimetric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5473\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1406",
        "Identifier": "I1750",
        "Context": "USDOI\USGS",
        "Name": "Residue by Evaporation and Gravimetric",
        "Description": "https:\\www.nemi.gov\methods\method_summary\8918\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1407",
        "Identifier": "I1780",
        "Context": "USDOI\USGS",
        "Name": "Specific Conductance",
        "Description": "https:\\www.nemi.gov\methods\method_summary\8914\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1408",
        "Identifier": "I1800(S)",
        "Context": "USDOI\USGS",
        "Name": "Strontium in Bottom Material by FLAA",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1409",
        "Identifier": "I1800(W)",
        "Context": "USDOI\USGS",
        "Name": "Strontium in Water by FLAA",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1410",
        "Identifier": "I1820",
        "Context": "USDOI\USGS",
        "Name": "Sulfate in Water by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1411",
        "Identifier": "I1866",
        "Context": "USDOI\USGS",
        "Name": "I-1866 ~ Thallium in Water by GFAA",
        "Description": "I-1866 ~ USGS-NWQL . Thallium, dissolved, graphite furnace",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5476\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1412",
        "Identifier": "I1880",
        "Context": "USDOI\USGS",
        "Name": "Vanadium in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1413",
        "Identifier": "I1900(S)",
        "Context": "USDOI\USGS",
        "Name": "Zinc in Bottom Material by FLAA",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1414",
        "Identifier": "I1900(W)",
        "Context": "USDOI\USGS",
        "Name": "Zinc in Water by FLAA",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1415",
        "Identifier": "I1901",
        "Context": "USDOI\USGS",
        "Name": "I-1901 ~ Zinc in Water by GFAA",
        "Description": "I-1901 ~ USGS-NWQL . Zinc, dissolved, graphite furnace",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5478\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1416",
        "Identifier": "I2030",
        "Context": "USDOI\USGS",
        "Name": "Alkalinity in Water by Titration",
        "Description": "https:\\www.nemi.gov\methods\method_summary\8898\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1417",
        "Identifier": "I2057",
        "Context": "USDOI\USGS",
        "Name": "I-2057 ~ Anions in Water by Ion Chromatography",
        "Description": "I-2057 ~ USGS-NWQL . Anions, dissolved, water, IONCHR",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5536\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1418",
        "Identifier": "I2058",
        "Context": "USDOI\USGS",
        "Name": "I-2058 ~ Anions in Water by Ion Chromatography",
        "Description": "I-2058 ~ USGS-NWQL . Anions, dissolved, water, IONCHR",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5537\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1419",
        "Identifier": "I2062",
        "Context": "USDOI\USGS",
        "Name": "I-2062 ~ Arsenic in Water by HYDAA",
        "Description": "I-2062 ~ USGS-NWQL . Arsenic, dissolved, water, hydride_AA.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5538\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1420",
        "Identifier": "I2115",
        "Context": "USDOI\USGS",
        "Name": "Boron in Water by Automated Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1421",
        "Identifier": "I2128",
        "Context": "USDOI\USGS",
        "Name": "Bromide in Water by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1422",
        "Identifier": "I2129",
        "Context": "USDOI\USGS",
        "Name": "Bromide in Water by Colorimetry",
        "Description": "https:\\www.nemi.gov\methods\method_summary\8926\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1423",
        "Identifier": "I2187",
        "Context": "USDOI\USGS",
        "Name": "Chloride in Water by Automated Colorimetry",
        "Description": "https:\\www.nemi.gov\methods\method_summary\9617\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1424",
        "Identifier": "I2188",
        "Context": "USDOI\USGS",
        "Name": "Chloride in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1425",
        "Identifier": "I2302",
        "Context": "USDOI\USGS",
        "Name": "I-2302 ~ Cyanide in Water by Colorimetry",
        "Description": "I-2302 ~ USGS-NWQL . Cyanide, whole water recoverable. colorimetric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5660\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1426",
        "Identifier": "I2327",
        "Context": "USDOI\USGS",
        "Name": "Fluoride in Water Using an ISE",
        "Description": "https:\\www.nemi.gov\methods\method_summary\8953\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1427",
        "Identifier": "I2462",
        "Context": "USDOI\USGS",
        "Name": "I-2462 ~ Mercury in Water by CVAA",
        "Description": "I-2462 ~ USGS-NWQL . Mercury, dissolved, CVFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5662\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1428",
        "Identifier": "I2521",
        "Context": "USDOI\USGS",
        "Name": "Ammonia Nitrogen in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1429",
        "Identifier": "I2522",
        "Context": "USDOI\USGS",
        "Name": "Ammonia Nitrogen in Water by Colorimetry",
        "Description": "https:\\www.nemi.gov\methods\method_summary\8899\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1430",
        "Identifier": "I2523",
        "Context": "USDOI\USGS",
        "Name": "Ammonia Nitrogen in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1431",
        "Identifier": "I2539",
        "Context": "USDOI\USGS",
        "Name": "Nitrite-Nitrogen in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1433",
        "Identifier": "I2543",
        "Context": "USDOI\USGS",
        "Name": "Nitrite- plus Nitrate-Nitrogen in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1434",
        "Identifier": "I2545(S)",
        "Context": "USDOI\USGS",
        "Name": "Nitrite- Plus Nitrate-Nitrogen in Solids",
        "Description": " in Solids",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1435",
        "Identifier": "I2545(W)",
        "Context": "USDOI\USGS",
        "Name": "Nitrite- Plus Nitrate-Nitrogen in Water",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1436",
        "Identifier": "I2552",
        "Context": "USDOI\USGS",
        "Name": "Ammonia plus Organic Nitrogen in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1437",
        "Identifier": "I2558",
        "Context": "USDOI\USGS",
        "Name": "Ammonia plus Organic Nitrogen in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1438",
        "Identifier": "I2598",
        "Context": "USDOI\USGS",
        "Name": "Orthophosphate-Phosphorus by Colorimetry",
        "Description": "https:\\www.nemi.gov\methods\method_summary\10456\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1439",
        "Identifier": "I2599",
        "Context": "USDOI\USGS",
        "Name": "Phosphorus by Auto-Discrete Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1440",
        "Identifier": "I2600(S)",
        "Context": "USDOI\USGS",
        "Name": "Phosphorus in Solids by Colorimetry",
        "Description": " in Solids",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1441",
        "Identifier": "I2600(W)",
        "Context": "USDOI\USGS",
        "Name": "Phosphorus in Water by Colorimetry",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1442",
        "Identifier": "I2601",
        "Context": "USDOI\USGS",
        "Name": "Orthophosphate-Phosphorus by Colorimetry",
        "Description": "https:\\www.nemi.gov\methods\method_summary\8907\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1443",
        "Identifier": "I2602",
        "Context": "USDOI\USGS",
        "Name": "I-2602 ~ Hydrolyzable plus Orthophosphate-Phosphorous",
        "Description": "I-2602 ~ USGS-NWQL . Phosphorus, orthophosphate plus hydrolyzable, dissolved, colorimetric, ASF",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5483\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1444",
        "Identifier": "I2667(S)",
        "Context": "USDOI\USGS",
        "Name": "Selenium in Bottom Material by HYDAA",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1445",
        "Identifier": "I2667(W)",
        "Context": "USDOI\USGS",
        "Name": "Selenium in Water by HYDAA",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1446",
        "Identifier": "I2700",
        "Context": "USDOI\USGS",
        "Name": "Silica in Water by Colorimetry",
        "Description": "https:\\www.nemi.gov\methods\method_summary\8917\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1447",
        "Identifier": "I2822",
        "Context": "USDOI\USGS",
        "Name": "Sulfate in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1448",
        "Identifier": "I2823",
        "Context": "USDOI\USGS",
        "Name": "Sulfate in Water by Turbidimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1449",
        "Identifier": "I2851(S)",
        "Context": "USDOI\USGS",
        "Name": "I2851 S  ~ Tin in Bottom Material by HYDAA",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1450",
        "Identifier": "I2851(W)",
        "Context": "USDOI\USGS",
        "Name": "I2851 W  ~ Tin in Water by HYDAA",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1451",
        "Identifier": "I2880",
        "Context": "USDOI\USGS",
        "Name": "I-2880 ~ Vanadium in Water by Colorimetry",
        "Description": "I-2880 ~ USGS-NWQL . Vanadium, dissolved, colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5488\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1452",
        "Identifier": "I3051",
        "Context": "USDOI\USGS",
        "Name": "Aluminum in Water by FLAA",
        "Description": "https:\\www.nemi.gov\methods\method_summary\9603\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1453",
        "Identifier": "I3052",
        "Context": "USDOI\USGS",
        "Name": "Aluminum in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1454",
        "Identifier": "I3054",
        "Context": "USDOI\USGS",
        "Name": "I-3054 ~ Aluminum by D-C Plasma Spectrometry",
        "Description": "I-3054 ~ USGS-NWQL . Aluminum, total recoverable, water, DCP",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5540\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1455",
        "Identifier": "I3055",
        "Context": "USDOI\USGS",
        "Name": "I-3055 ~ Antimony in Water by Hydride AA",
        "Description": "I-3055 ~ USGS-NWQL . Antimony, total, water, hydride _AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5541\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1456",
        "Identifier": "I3060",
        "Context": "USDOI\USGS",
        "Name": "Arsenic in Water by Colorimetry",
        "Description": "https:\\www.nemi.gov\methods\method_summary\9608\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1457",
        "Identifier": "I3062",
        "Context": "USDOI\USGS",
        "Name": "Arsenic in Water by HYDAA",
        "Description": "https:\\www.nemi.gov\methods\method_summary\9616\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1458",
        "Identifier": "I3084",
        "Context": "USDOI\USGS",
        "Name": "I-3084 ~ Barium in Water by FLAA",
        "Description": "I-3084 ~ USGS-NWQL . Barium, total-recoverable, water, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5542\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1459",
        "Identifier": "I3095",
        "Context": "USDOI\USGS",
        "Name": "I-3095 ~ Beryllium in Water by FLAA",
        "Description": "I-3095 ~ USGS-NWQL . Beryllium, total-recoverable, water, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5543\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1460",
        "Identifier": "I3110",
        "Context": "USDOI\USGS",
        "Name": "Boron in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1461",
        "Identifier": "I3112",
        "Context": "USDOI\USGS",
        "Name": "Boron in Water by Colorimetry",
        "Description": "https:\\www.nemi.gov\methods\method_summary\9620\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1462",
        "Identifier": "I3135",
        "Context": "USDOI\USGS",
        "Name": "I-3135 ~ Cadmium in Water by FLAA",
        "Description": "I-3135 ~ USGS-NWQL . Cadmium, total-recoverable, water, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5544\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1463",
        "Identifier": "I3136",
        "Context": "USDOI\USGS",
        "Name": "Cadmium in Water by Chelation and FLAA",
        "Description": "https:\\www.nemi.gov\methods\method_summary\9621\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1464",
        "Identifier": "I3152",
        "Context": "USDOI\USGS",
        "Name": "I-3152 ~ Calcium in Water by FLAA",
        "Description": "I-3152 ~ USGS-NWQL . Calcium, total-recoverable, water, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5545\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1465",
        "Identifier": "I3153",
        "Context": "USDOI\USGS",
        "Name": "I-3153 ~ Calcium in Water by FLAA",
        "Description": "I-3153 ~ USGS-NWQL . Calcium, total-recoverable, water, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5546\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1466",
        "Identifier": "I3236",
        "Context": "USDOI\USGS",
        "Name": "Chromium in Water by FLAA",
        "Description": "https:\\www.nemi.gov\methods\method_summary\9612\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1467",
        "Identifier": "I3238",
        "Context": "USDOI\USGS",
        "Name": "Chromium in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1468",
        "Identifier": "I3239",
        "Context": "USDOI\USGS",
        "Name": "I-3239 ~ Cobalt in Water by FLAA",
        "Description": "I-3239 ~ USGS-NWQL . Cobalt, total-recoverable, water, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5548\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1469",
        "Identifier": "I3240",
        "Context": "USDOI\USGS",
        "Name": "Cobalt in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1470",
        "Identifier": "I3270",
        "Context": "USDOI\USGS",
        "Name": "I-3270 ~ Copper in Water by FLAA",
        "Description": "I-3270 ~ USGS-NWQL . Copper, whole water recoverable by FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5663\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1471",
        "Identifier": "I3271",
        "Context": "USDOI\USGS",
        "Name": "Copper in Water by Chelation and FLAA",
        "Description": "https:\\www.nemi.gov\methods\method_summary\9613\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1472",
        "Identifier": "I3300",
        "Context": "USDOI\USGS",
        "Name": "I-3300 ~ Cyanide in Water by Colorimetry",
        "Description": "I-3300 ~ USGS-NWQL . Cyanide in Water by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4764\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1473",
        "Identifier": "I3325",
        "Context": "USDOI\USGS",
        "Name": "Fluoride in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1474",
        "Identifier": "I3381",
        "Context": "USDOI\USGS",
        "Name": "I-3381 ~ I-ron in Water by FLAA",
        "Description": "I-3381 ~ USGS-NWQL . Iron, water, whole water recoverable. FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5664\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1475",
        "Identifier": "I3399",
        "Context": "USDOI\USGS",
        "Name": "I-3399 ~ Lead in Water by FLAA",
        "Description": "I-3399 ~ USGS-NWQL . Lead, total recoverable, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5665\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1476",
        "Identifier": "I3400",
        "Context": "USDOI\USGS",
        "Name": "Lead in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1477",
        "Identifier": "I3425",
        "Context": "USDOI\USGS",
        "Name": "I-3425 ~ Lithium in Water by FLAA",
        "Description": "I-3425 ~ USGS-NWQL . Lithium, total recoverable, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5666\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1478",
        "Identifier": "I3447",
        "Context": "USDOI\USGS",
        "Name": "I-3447 ~ Magnesium in Water by FLAA",
        "Description": "I-3447 ~ USGS-NWQL . Magnesium, total recoverable, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5667\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1479",
        "Identifier": "I3448",
        "Context": "USDOI\USGS",
        "Name": "I-3448 ~ Magnesium in Water by Direct EPA FLAA",
        "Description": "I-3448 ~ USGS-NWQL . Magnesium, total recoverable, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5668\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1480",
        "Identifier": "I3454",
        "Context": "USDOI\USGS",
        "Name": "I-3454 ~ Manganese in Water by FLAA",
        "Description": "I-3454 ~ USGS-NWQL . Manganese, total recoverable, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5669\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1481",
        "Identifier": "I3462",
        "Context": "USDOI\USGS",
        "Name": "I-3462 ~ Mercury in Water by CVAA",
        "Description": "I-3462 ~ USGS-NWQL . Mercury, total recoverable, CVFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5670\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1482",
        "Identifier": "I3490",
        "Context": "USDOI\USGS",
        "Name": "Molybdenum by Chelation and FLAA",
        "Description": "https:\\www.nemi.gov\methods\method_summary\9598\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1483",
        "Identifier": "I3499",
        "Context": "USDOI\USGS",
        "Name": "I-3499 ~ Nickel in Water by FLAA",
        "Description": "I-3499 ~ USGS-NWQL . Nickel, total recoverable FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5489\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1484",
        "Identifier": "I3500",
        "Context": "USDOI\USGS",
        "Name": "Nickel in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1485",
        "Identifier": "I3524",
        "Context": "USDOI\USGS",
        "Name": "Ammonia Nitrogen in Water Using an ISE",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1486",
        "Identifier": "I3561",
        "Context": "USDOI\USGS",
        "Name": "Chemical Oxygen Demand by Colorimetry",
        "Description": "I-3561 ~ USGS-NWQL . Chemical-oxygen-demand, water-suspended-sediments, colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4765\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1487",
        "Identifier": "I3562(S)",
        "Context": "USDOI\USGS",
        "Name": "Chemical Oxygen Demand by Titration",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1488",
        "Identifier": "I3562(W)",
        "Context": "USDOI\USGS",
        "Name": "Chemical Oxygen Demand by Titration",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1489",
        "Identifier": "I3631",
        "Context": "USDOI\USGS",
        "Name": "I-3631 ~ Potassium in Water by FLAA",
        "Description": "I-3631 ~ USGS-NWQL . Potassium, total recoverable, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5490\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1490",
        "Identifier": "I3736",
        "Context": "USDOI\USGS",
        "Name": "I-3736 ~ Sodium in Water by FLAA",
        "Description": "I-3736 ~ USGS-NWQL . Sodium, total recoverable, atomic absorption spectrometric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5492\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1491",
        "Identifier": "I3750",
        "Context": "USDOI\USGS",
        "Name": "Residue by Evaporation and Gravimetric",
        "Description": "I-3750 ~ USGS-NWQL . Solids, residue on evaporation at 105 degrees C, total, gravimetric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5493\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1492",
        "Identifier": "I3765",
        "Context": "USDOI\USGS",
        "Name": "Residue by Evaporation and Gravimetric",
        "Description": "I-3765 ~ USGS-NWQL . Solids, residue at 105 degrees C, suspended, gravimetric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5495\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1493",
        "Identifier": "I3840",
        "Context": "USDOI\USGS",
        "Name": "I-3840 ~ Sulfide in Water by Titration",
        "Description": "I-3840 ~ USGS-NWQL . Sulfide, total, iodometric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5498\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1494",
        "Identifier": "I3860",
        "Context": "USDOI\USGS",
        "Name": "Nephelometric Turbidity in Water",
        "Description": "I-3860 ~ USGS-NWQL . Turbidity, nephelometric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5499\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1495",
        "Identifier": "I4062",
        "Context": "USDOI\USGS",
        "Name": "I-4062 ~ Arsenic in Water by HYDAA",
        "Description": "I-4062 ~ USGS-NWQL . Arsenic, total, water, hydride _AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5549\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1496",
        "Identifier": "I4302",
        "Context": "USDOI\USGS",
        "Name": "I-4302 ~ Cyanide in Water by Colorimetry",
        "Description": "I-4302 ~ USGS-NWQL . Cyanide, whole water recoverable. colorimetric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5671\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1497",
        "Identifier": "I4327",
        "Context": "USDOI\USGS",
        "Name": "Fluoride in Water Using an ISE",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1498",
        "Identifier": "I4521",
        "Context": "USDOI\USGS",
        "Name": "Ammonia Nitrogen in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1499",
        "Identifier": "I4522",
        "Context": "USDOI\USGS",
        "Name": "Ammonia Nitrogen in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1500",
        "Identifier": "I4523",
        "Context": "USDOI\USGS",
        "Name": "Ammonia Nitrogen in Water by Colorimetry",
        "Description": "https:\\www.nemi.gov\methods\method_summary\9607\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1501",
        "Identifier": "I4552",
        "Context": "USDOI\USGS",
        "Name": "Ammonia Plus Organic Nitrogen in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1502",
        "Identifier": "I5051",
        "Context": "USDOI\USGS",
        "Name": "Aluminum in Bottom Material by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1503",
        "Identifier": "I5055",
        "Context": "USDOI\USGS",
        "Name": "I-5055 ~ Antimony in Bottom Material by HYDAA",
        "Description": "I-5055 ~ USGS-NWQL . Antimony, total in bottom material, various, hydride_AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5551\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1504",
        "Identifier": "I5060",
        "Context": "USDOI\USGS",
        "Name": "Arsenic in Bottom Material by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1505",
        "Identifier": "I5062",
        "Context": "USDOI\USGS",
        "Name": "Arsenic in Bottom Material by HYDAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1506",
        "Identifier": "I5084",
        "Context": "USDOI\USGS",
        "Name": "I-5084 ~ Barium in Bottom Material by FLAA",
        "Description": "I-5084 ~ USGS-NWQL . Barium, recoverable-from-bottom-material, dry wt",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5552\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1507",
        "Identifier": "I5095",
        "Context": "USDOI\USGS",
        "Name": "I-5095 ~ Beryllium in Bottom Material by FLAA",
        "Description": "I-5095 ~ USGS-NWQL . Beryllium, recoverable- from -bottom-material, various, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5553\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1508",
        "Identifier": "I5110",
        "Context": "USDOI\USGS",
        "Name": "Boron in Bottom Material by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1509",
        "Identifier": "I5135",
        "Context": "USDOI\USGS",
        "Name": "I-5135 ~ Cadmium in Bottom Material by FLAA",
        "Description": "I-5135 ~ USGS-NWQL . Cadmium, recoverable-from-bottom-material, various, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5554\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1510",
        "Identifier": "I5152",
        "Context": "USDOI\USGS",
        "Name": "I-5152 ~ Calcium in Bottom Material by FLAA",
        "Description": "I-5152 ~ USGS-NWQL . Calcium, recoverable-from-bottom-material, various, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5555\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1511",
        "Identifier": "I5236",
        "Context": "USDOI\USGS",
        "Name": "Chromium in Bottom Material by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1512",
        "Identifier": "I5239",
        "Context": "USDOI\USGS",
        "Name": "I-5239 ~ Cobalt in Bottom Material by FLAA",
        "Description": "I-5239 ~ USGS-NWQL . Cobalt, recoverable-from-bottom-material, various, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5556\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1513",
        "Identifier": "I5270",
        "Context": "USDOI\USGS",
        "Name": "I-5270 ~ Copper in Bottom Material by FLAA",
        "Description": "I-5270 ~ USGS-NWQL . Copper, recoverable-from-bottom-material, dry wt, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5684\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1514",
        "Identifier": "I5300",
        "Context": "USDOI\USGS",
        "Name": "CN in Bottom Material by Colorimetry",
        "Description": "https:\\www.nemi.gov\methods\method_summary\8938\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1515",
        "Identifier": "I5381",
        "Context": "USDOI\USGS",
        "Name": "I-5381 ~ Iron in Bottom Material by FLAA",
        "Description": "I-5381 ~ USGS-NWQL . Iron, recoverable-from-bottom-material, dry wt, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5685\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1516",
        "Identifier": "I5399",
        "Context": "USDOI\USGS",
        "Name": "I-5399 ~ Lead in Bottom Material by FLAA",
        "Description": "I-5399 ~ USGS-NWQL . Lead, recoverable-from-bottom-material, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5686\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1517",
        "Identifier": "I5425",
        "Context": "USDOI\USGS",
        "Name": "I-5425 ~ Lithium in Bottom Material by FLAA",
        "Description": "I-5425 ~ USGS-NWQL . Lithium, recoverable-from-bottom-material, dry wt, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5687\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1518",
        "Identifier": "I5447",
        "Context": "USDOI\USGS",
        "Name": "I-5447 ~ Magnesium in Bottom Material by FLAA",
        "Description": "I-5447 ~ USGS-NWQL . Magnesium, recoverable-from-bottom-material, dry wt, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5688\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1519",
        "Identifier": "I5454",
        "Context": "USDOI\USGS",
        "Name": "I-5454 ~ Manganese in Bottom Material by FLAA",
        "Description": "I-5454 ~ USGS-NWQL . Manganese, recoverable-from-bottom-material, dry wt, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5689\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1520",
        "Identifier": "I5462",
        "Context": "USDOI\USGS",
        "Name": "I-5462 ~ Mercury in Bottom Material by CVAA",
        "Description": "I-5462 ~ USGS-NWQL . Mercury, recoverable-from-bottom-material, CVFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5673\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1521",
        "Identifier": "I5473",
        "Context": "USDOI\USGS",
        "Name": "Metals in Sediment by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1522",
        "Identifier": "I5474",
        "Context": "USDOI\USGS",
        "Name": "Metals in Sediment by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1523",
        "Identifier": "I5475",
        "Context": "USDOI\USGS",
        "Name": "Metals in Sediment by HYDAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1524",
        "Identifier": "I5490",
        "Context": "USDOI\USGS",
        "Name": "Molybdenum by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1525",
        "Identifier": "I5499",
        "Context": "USDOI\USGS",
        "Name": "I-5499 ~ Nickel in Bottom Material by FLAA",
        "Description": "I-5499 ~ USGS-NWQL . Nickel, recoverable-from-bottom-material, dry wt, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5505\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1526",
        "Identifier": "I5553",
        "Context": "USDOI\USGS",
        "Name": "I-5553 ~ Ammonia plus Organic Nitrogen in Solids",
        "Description": "I-5553 ~ USGS-NWQL . Nitrogen, ammonia plus organic, total-in-bottom-material, dry wt, titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5506\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1527",
        "Identifier": "I6062",
        "Context": "USDOI\USGS",
        "Name": "I-6062 ~ Arsenic in Bottom Material by HYDAA",
        "Description": "I-6062 ~ USGS-NWQL . Arsenic, total in bottom material, various, hydride _AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5557\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1528",
        "Identifier": "I6302",
        "Context": "USDOI\USGS",
        "Name": "I-6302 ~ CN in Bottom Material by Colorimetry",
        "Description": "I-6302 ~ USGS-NWQL . Cyanide, recoverable-from-bottom-material, dry wt, colorimetric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5690\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1529",
        "Identifier": "I6522",
        "Context": "USDOI\USGS",
        "Name": "Ammonia Nitrogen by Colorimetry in Solid",
        "Description": "https:\\www.nemi.gov\methods\method_summary\8908\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1530",
        "Identifier": "I6523",
        "Context": "USDOI\USGS",
        "Name": "Ammonia Nitrogen by Colorimetry in Solid",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1531",
        "Identifier": "I6552",
        "Context": "USDOI\USGS",
        "Name": "Ammonia Plus Organic Nitrogen in Solids",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3064",
        "Identifier": "I6600",
        "Context": "USDOI\USGS",
        "Name": "Phosphorous by Auto-Discrete Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2007-09-25T11:06:33 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1532",
        "Identifier": "I7051",
        "Context": "USDOI\USGS",
        "Name": "Aluminum in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1533",
        "Identifier": "I7052",
        "Context": "USDOI\USGS",
        "Name": "Aluminum in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1534",
        "Identifier": "I7054",
        "Context": "USDOI\USGS",
        "Name": "I-7054 ~ Aluminum by D-C Plasma Spectrometry",
        "Description": "I-7054 ~ USGS-NWQL . Aluminum, suspended recoverable, water, DCP",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5558\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1535",
        "Identifier": "I7055",
        "Context": "USDOI\USGS",
        "Name": "I-7055 ~ Antimony in Water by Hydride AA",
        "Description": "I-7055 ~ USGS-NWQL . Antimony, suspended total, water, hydride _AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5559\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1536",
        "Identifier": "I7060",
        "Context": "USDOI\USGS",
        "Name": "Arsenic in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1537",
        "Identifier": "I7062",
        "Context": "USDOI\USGS",
        "Name": "I-7062 ~ Arsenic in Water by HYDAA",
        "Description": "I-7062 ~ USGS-NWQL . Arsenic, suspended-total, water, hydride_AA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5560\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1538",
        "Identifier": "I7084",
        "Context": "USDOI\USGS",
        "Name": "I-7084 ~ Barium in Water by FLAA",
        "Description": "I-7084 ~ USGS-NWQL . Barium, suspended-recoverable, water, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5561\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1539",
        "Identifier": "I7095",
        "Context": "USDOI\USGS",
        "Name": "I-7095 ~ Beryllium in Water by FLAA",
        "Description": "I-7095 ~ USGS-NWQL . Beryllium, suspended-recoverable, water, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5562\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1540",
        "Identifier": "I7110",
        "Context": "USDOI\USGS",
        "Name": "Boron in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1541",
        "Identifier": "I7112",
        "Context": "USDOI\USGS",
        "Name": "Boron in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1542",
        "Identifier": "I7135",
        "Context": "USDOI\USGS",
        "Name": "I-7135 ~ Cadmium in Water by FLAA",
        "Description": "I-7135 ~ USGS-NWQL . Cadmium, suspended-recoverable, water, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5563\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1543",
        "Identifier": "I7136",
        "Context": "USDOI\USGS",
        "Name": "Cadmium in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1544",
        "Identifier": "I7152",
        "Context": "USDOI\USGS",
        "Name": "I-7152 ~ Calcium in Water by FLAA",
        "Description": "I-7152 ~ USGS-NWQL . Calcium, suspended-recoverable, water, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5564\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1545",
        "Identifier": "I7236",
        "Context": "USDOI\USGS",
        "Name": "Chromium in Water by FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1546",
        "Identifier": "I7238",
        "Context": "USDOI\USGS",
        "Name": "Chromium in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1547",
        "Identifier": "I7239",
        "Context": "USDOI\USGS",
        "Name": "I-7239 ~ Cobalt in Water by FLAA",
        "Description": "I-7239 ~ USGS-NWQL . Cobalt, suspended-recoverable, water, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5565\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1548",
        "Identifier": "I7240",
        "Context": "USDOI\USGS",
        "Name": "Cobalt in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1549",
        "Identifier": "I7270",
        "Context": "USDOI\USGS",
        "Name": "I-7270 ~ Copper in Water by FLAA",
        "Description": "I-7270 ~ USGS-NWQL . Copper, suspended recoverable from water. by FLAA.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5674\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1550",
        "Identifier": "I7271",
        "Context": "USDOI\USGS",
        "Name": "Copper in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1551",
        "Identifier": "I7325",
        "Context": "USDOI\USGS",
        "Name": "Fluoride in Water by Colorimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1552",
        "Identifier": "I7327",
        "Context": "USDOI\USGS",
        "Name": "Fluoride in Water Using an ISE",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1553",
        "Identifier": "I7381",
        "Context": "USDOI\USGS",
        "Name": "I-7381 ~ Iron in Water by FLAA",
        "Description": "I-7381 ~ USGS-NWQL . Iron, water, suspended recoverable by FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5675\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1554",
        "Identifier": "I7399",
        "Context": "USDOI\USGS",
        "Name": "I-7399 ~ Lead in Water by FLAA",
        "Description": "I-7399 ~ USGS-NWQL . Lead, suspended recoverable, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5676\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1555",
        "Identifier": "I7400",
        "Context": "USDOI\USGS",
        "Name": "Lead in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1556",
        "Identifier": "I7425",
        "Context": "USDOI\USGS",
        "Name": "I-7425 ~ Lithium in Water by FLAA",
        "Description": "I-7425 ~ USGS-NWQL . Lithium, suspended recoverable, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5677\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1557",
        "Identifier": "I7447",
        "Context": "USDOI\USGS",
        "Name": "I-7447 ~ Magnesium in Water by FLAA",
        "Description": "I-7447 ~ USGS-NWQL . Magnesium, suspended recoverable, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5678\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1558",
        "Identifier": "I7454",
        "Context": "USDOI\USGS",
        "Name": "I-7454 ~ Manganese in Water by FLAA",
        "Description": "I-7454 ~ USGS-NWQL . Manganese, suspended recoverable, FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5679\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1559",
        "Identifier": "I7462",
        "Context": "USDOI\USGS",
        "Name": "I-7462 ~ Mercury in Water by CVAA",
        "Description": "I-7462 ~ USGS-NWQL . Mercury, suspended recoverable, CVFAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5680\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1560",
        "Identifier": "I7490",
        "Context": "USDOI\USGS",
        "Name": "Molybdenum by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1561",
        "Identifier": "I7499",
        "Context": "USDOI\USGS",
        "Name": "I-7499 ~ Nickel in Water by FLAA",
        "Description": "I-7499 ~ USGS-NWQL . Nickel, suspended recoverable, calculation from FLAA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5512\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1562",
        "Identifier": "I7500",
        "Context": "USDOI\USGS",
        "Name": "Nickel in Water by Chelation and FLAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1563",
        "Identifier": "I7552",
        "Context": "USDOI\USGS",
        "Name": "Ammonia Plus Organic Nitrogen in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6148",
        "Identifier": "IC003",
        "Context": "USDOI\USGS",
        "Name": "PLUTONIUM-238, WF, ALPHA (STL)",
        "Description": "Plutonium-238, water, filtered, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6149",
        "Identifier": "IC004",
        "Context": "USDOI\USGS",
        "Name": "PLUTONIUM-238, WU, ALPHA (STL)",
        "Description": "Plutonium-238, water, unfiltered, @ 0.1 pCi\L, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6150",
        "Identifier": "IC022",
        "Context": "USDOI\USGS",
        "Name": "PLUTONIUM-238,BS,ALPHA(EBERLINE)",
        "Description": "Plutonium-238, bed sediment, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2419",
        "Identifier": "ICP-AES",
        "Context": "USEPA",
        "Name": "Inductively Coupled Plasma",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5916",
        "Identifier": "IDUSR_WQ01",
        "Context": "USDA\ARS",
        "Name": "Determination of Nitrate\Nitrite by Flow Injection Analysis",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ01",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T17:29:02 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5917",
        "Identifier": "IDUSR_WQ02",
        "Context": "USDA\ARS",
        "Name": "Determination of Chloride by Flow Injection Analysis Colormetry",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ02",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T17:29:02 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5927",
        "Identifier": "IDUSR_WQ02reserved",
        "Context": "USDA\ARS",
        "Name": "Determination of Chloride by Flow Injection Analysis Colormetry",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ02",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5918",
        "Identifier": "IDUSR_WQ03",
        "Context": "USDA\ARS",
        "Name": "Determination of Ammonia by Flow Injection Analysis",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ03",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T17:29:02 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5928",
        "Identifier": "IDUSR_WQ03reserved",
        "Context": "USDA\ARS",
        "Name": "Determination of Ammonia by Flow Injection Analysis",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ03",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5919",
        "Identifier": "IDUSR_WQ04",
        "Context": "USDA\ARS",
        "Name": "Determination of Total Kjeldahl Nitrogen By Flow Injection Analysis Colormetry (Block Digestor Method)",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ04",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T17:29:02 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5929",
        "Identifier": "IDUSR_WQ04reserved",
        "Context": "USDA\ARS",
        "Name": "Determination of Total Kjeldahl Nitrogen By Flow Injection Analysis Colormetry (Block Digestor Method)",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ04",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5920",
        "Identifier": "IDUSR_WQ05",
        "Context": "USDA\ARS",
        "Name": "Dissolved Elements in Water by Inductively Coupled Plasma- Atomic Emission Spectroscopy",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ05",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T17:29:02 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5930",
        "Identifier": "IDUSR_WQ05reserved",
        "Context": "USDA\ARS",
        "Name": "Dissolved Elements in Water by Inductively Coupled Plasma- Atomic Emission Spectroscopy",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ05",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5921",
        "Identifier": "IDUSR_WQ06",
        "Context": "USDA\ARS",
        "Name": "pH, Continuous Monitoring (Electrometric)",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ06",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T17:29:02 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5931",
        "Identifier": "IDUSR_WQ06reserved",
        "Context": "USDA\ARS",
        "Name": "pH, Continuous Monitoring (Electrometric)",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ06",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5922",
        "Identifier": "IDUSR_WQ07",
        "Context": "USDA\ARS",
        "Name": "Specific Electrical Conductivity of Surface Water",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ07",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T17:29:03 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5932",
        "Identifier": "IDUSR_WQ07reserved",
        "Context": "USDA\ARS",
        "Name": "Specific Electrical Conductivity of Surface Water",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ07",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5923",
        "Identifier": "IDUSR_WQ08",
        "Context": "USDA\ARS",
        "Name": "Suspended sediment in water",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ08",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T17:29:03 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5933",
        "Identifier": "IDUSR_WQ08reserved",
        "Context": "USDA\ARS",
        "Name": "Suspended sediment in water",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ08",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5926",
        "Identifier": "IDUSR_WQ09",
        "Context": "USDA\ARS",
        "Name": "Determination of Nitrate\Nitrite by Flow Injection Analysis",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ09",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5934",
        "Identifier": "IDUSR_WQ09reserved",
        "Context": "USDA\ARS",
        "Name": "Orthophosphate by Colorimetry",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ10",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5924",
        "Identifier": "IDUSR_WQ10",
        "Context": "USDA\ARS",
        "Name": "Orthophosphate by Colorimetry",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ10",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T17:29:03 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5935",
        "Identifier": "IDUSR_WQ10reserved",
        "Context": "USDA\ARS",
        "Name": "Dissolved Elements in Carter Water Samples",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ11",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5925",
        "Identifier": "IDUSR_WQ11",
        "Context": "USDA\ARS",
        "Name": "Dissolved Elements in Carter Water Samples",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=IDUSR_WQ11",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-20T17:29:03 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2420",
        "Identifier": "IM-002-1",
        "Context": "USEPA",
        "Name": "Field Screening by Portable XRF",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2421",
        "Identifier": "IM-003-1",
        "Context": "USEPA",
        "Name": "Metals by Flame AA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "734688",
        "Identifier": "IMS\ATP",
        "Context": "USDOI\USGS",
        "Name": "IMS\ATP Rapid Method for the Determination of E. coli Concentrations in Recreational Waters",
        "Description": "Rapid detection of Escherichia coli and enterococci inrecreational water using an immunomagneticseparation⁄adenosine triphosphate techniquehttps:\\oh.water.usgs.gov\Ohio_Outreach\NAWQA-QW%20Conf-%20IMS-ATP%20Rapid%20Method.doc",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-04-21T08:25:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4759",
        "Identifier": "INDEX VELOCITY",
        "Context": "USDOI\USGS",
        "Name": "Computing Discharge Using the Index Velocity Method",
        "Description": "Computing Discharge Using the Index Velocity Method ~ USGS . Levesque, V.A., and Oberg, K.A",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11964\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5936",
        "Identifier": "INSJ_WQ1",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ1",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-23T16:59:16 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5945",
        "Identifier": "INSJ_WQ10",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ10",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ10",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-23T16:59:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5946",
        "Identifier": "INSJ_WQ11",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ11",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ11",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-23T16:59:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5947",
        "Identifier": "INSJ_WQ12",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ12",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ12",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-23T16:59:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5948",
        "Identifier": "INSJ_WQ13",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ13",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ13",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-23T16:59:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5949",
        "Identifier": "INSJ_WQ14",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ14",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ14",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-23T16:59:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5950",
        "Identifier": "INSJ_WQ15",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ15",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ15",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-23T16:59:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5951",
        "Identifier": "INSJ_WQ16",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ16",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ16",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-23T16:59:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5937",
        "Identifier": "INSJ_WQ2",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ2",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ2",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-23T16:59:16 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5938",
        "Identifier": "INSJ_WQ3",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ3",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ3",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-23T16:59:16 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5939",
        "Identifier": "INSJ_WQ4",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ4",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ4",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-23T16:59:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5940",
        "Identifier": "INSJ_WQ5",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ5",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ5",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-23T16:59:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5941",
        "Identifier": "INSJ_WQ6",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ6",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ6",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-23T16:59:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5942",
        "Identifier": "INSJ_WQ7",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ7",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ7",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-23T16:59:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5943",
        "Identifier": "INSJ_WQ8",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ8",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ8",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-23T16:59:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5944",
        "Identifier": "INSJ_WQ9",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ9",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=INSJ_WQ9",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-23T16:59:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2422",
        "Identifier": "INTERIM1",
        "Context": "USEPA",
        "Name": "Hydrogen Cyanide Released from Wastes",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2423",
        "Identifier": "INTERIM2",
        "Context": "USEPA",
        "Name": "Hydrogen Sulfide Released from Wastes",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5060",
        "Identifier": "IO-3.3",
        "Context": "USEPA",
        "Name": "Metals in Ambient Particulate Matter Using X-Ray Fluorescence (XRF) Spectroscopy",
        "Description": "IO-3.3 ~ EPA-ORD \ EPA-OST . Metals in Ambient Particulate Matter Using X-Ray Fluorescence (XRF) Spectroscopy",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10636\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2424",
        "Identifier": "IP-10A",
        "Context": "USEPA",
        "Name": "Respirable Particulates in Indoor Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2425",
        "Identifier": "IP-10B",
        "Context": "USEPA",
        "Name": "Respirable Particulates in Indoor Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2426",
        "Identifier": "IP-1A",
        "Context": "USEPA",
        "Name": "Volatiles in Air - SUMMA Canister",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2427",
        "Identifier": "IP-1A-B",
        "Context": "USEPA",
        "Name": "Volatiles in Air - Portable GC\PID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2428",
        "Identifier": "IP-1A-C",
        "Context": "USEPA",
        "Name": "Installation and Operation Procedure",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2429",
        "Identifier": "IP-1B",
        "Context": "USEPA",
        "Name": "Volatiles in Air - Adsorbent Tubes",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2430",
        "Identifier": "IP-2A",
        "Context": "USEPA",
        "Name": "Nicotine in Indoor Air - XAD-4",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2431",
        "Identifier": "IP-2B",
        "Context": "USEPA",
        "Name": "Nicotine in Indoor Air-Cassette",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2432",
        "Identifier": "IP-3A",
        "Context": "USEPA",
        "Name": "Carbon Monoxide in Air - NDIR",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2433",
        "Identifier": "IP-3B",
        "Context": "USEPA",
        "Name": "Carbon Monoxide in Air - GFC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2434",
        "Identifier": "IP-3C",
        "Context": "USEPA",
        "Name": "Carbon Monoxide in Air - ECO",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2435",
        "Identifier": "IP-5A",
        "Context": "USEPA",
        "Name": "Nitrogen Dioxide - Air, Luminescence",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2436",
        "Identifier": "IP-5B",
        "Context": "USEPA",
        "Name": "Nitrogen Dioxide - Air, Palmes Tubes",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2437",
        "Identifier": "IP-5C",
        "Context": "USEPA",
        "Name": "Nitrogen Dioxide - Air, IONCHR",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2438",
        "Identifier": "IP-6A",
        "Context": "USEPA",
        "Name": "Formaldehyde - Indoor Air, HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2439",
        "Identifier": "IP-6B",
        "Context": "USEPA",
        "Name": "Formaldehyde in Air - Colorimetric",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2440",
        "Identifier": "IP-6C",
        "Context": "USEPA",
        "Name": "Formaldehyde in Air - Passive Sampling",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2441",
        "Identifier": "IP-7-A",
        "Context": "USEPA",
        "Name": "B(a)P in Air by GC\FID and GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2442",
        "Identifier": "IP-7-B",
        "Context": "USEPA",
        "Name": "B(a)P and PAHs in Air by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2443",
        "Identifier": "IP-8",
        "Context": "USEPA",
        "Name": "Organochlorine Pesticides - Indoor Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6151",
        "Identifier": "ISE04",
        "Context": "USDOI\USGS",
        "Name": "PLUTONIUM-238,SS,ALPHA(EBERLINE)",
        "Description": "Plutonium-238, suspended sediment, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6152",
        "Identifier": "ISE05",
        "Context": "USDOI\USGS",
        "Name": "PLUTONIUM-238,WF,ALPHA(EBERLINE)",
        "Description": "Plutonium-238, water, filtered, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6038",
        "Identifier": "ISM01.3_CN",
        "Context": "USEPA",
        "Name": "Total cyanide",
        "Description": "EPA Inorganic Superfund Methods 1.3",
        "QualifierType": "",
        "URL": "https:\\19january2017snapshot.epa.gov\sites\production\files\2015-07\documents\epa-ism01.3.pdf",
        "LastChangeDate": "2024-06-25T13:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6037",
        "Identifier": "ISM01.3_HG",
        "Context": "USEPA",
        "Name": "Cold vapor mercury",
        "Description": "EPA Inorganic Superfund Methods 1.3",
        "QualifierType": "",
        "URL": "https:\\19january2017snapshot.epa.gov\sites\production\files\2015-07\documents\epa-ism01.3.pdf",
        "LastChangeDate": "2024-06-25T13:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6035",
        "Identifier": "ISM01.3_ICP\AES",
        "Context": "USEPA",
        "Name": "Metals by inductively coupled plasma – atomic emission spectroscopy",
        "Description": "EPA Inorganic Superfund Methods 1.3",
        "QualifierType": "",
        "URL": "URL",
        "LastChangeDate": "2024-06-25T13:44:12 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6036",
        "Identifier": "ISM01.3_ICP\MS",
        "Context": "USEPA",
        "Name": "Metals by inductively coupled plasma – mass spectometry",
        "Description": "EPA Inorganic Superfund Methods 1.3",
        "QualifierType": "",
        "URL": "https:\\19january2017snapshot.epa.gov\sites\production\files\2015-07\documents\epa-ism01.3.pdf",
        "LastChangeDate": "2024-06-25T13:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2444",
        "Identifier": "ITM-001",
        "Context": "USEPA",
        "Name": "Metals Emissions from Stationary Sources",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3193",
        "Identifier": "KELADA-01",
        "Context": "USEPA",
        "Name": "Kelada Automated Test Methods for Total Cyanide, Acid Dissociable Cyanide, and Thiocyanate",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2010-02-01T08:52:21 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6153",
        "Identifier": "KJ002",
        "Context": "USDOI\USGS",
        "Name": "PLUTONIUM-238,WU,ALPHA(EBERLINE)",
        "Description": "Plutonium-238, water, unfiltered, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6154",
        "Identifier": "KJ004",
        "Context": "USDOI\USGS",
        "Name": "PLUTONIUM-239\240,BS,ALPHA (STL)",
        "Description": "Plutonium-239\240, bottom material, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6155",
        "Identifier": "KJ005",
        "Context": "USDOI\USGS",
        "Name": "PLUTONIUM-239\240,SS,ALPHA (STL)",
        "Description": "Plutonium-239\240, suspended sediment, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6156",
        "Identifier": "KJ008",
        "Context": "USDOI\USGS",
        "Name": "PLUTONIUM-239\240,WF,ALPHA (STL)",
        "Description": "Plutonium-239\240, water, filtered, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6157",
        "Identifier": "KJ009",
        "Context": "USDOI\USGS",
        "Name": "PLUTONIUM-239\240,WU,ALPHA (STL)",
        "Description": "Plutonium-239\240, water, unfiltered, @ 0.1 pCi\L, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2445",
        "Identifier": "KR-01",
        "Context": "USEPA",
        "Name": "Krypton-85 in Environmental Air Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6158",
        "Identifier": "LCM29",
        "Context": "USDOI\USGS",
        "Name": "PLUTONIUM-239\240, BS (EBERLINE)",
        "Description": "Plutonium-239\240, bottom material, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:52 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2446",
        "Identifier": "LC_PEST",
        "Context": "USEPA",
        "Name": "Low Concentration Water for Pesticides",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2447",
        "Identifier": "LC_SV",
        "Context": "USEPA",
        "Name": "Semivolatiles in Low Concentration Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2448",
        "Identifier": "LC_VOA",
        "Context": "USEPA",
        "Name": "Volatile Organics in Low Concentration Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "19270",
        "Identifier": "LIPIDS MIXED METHODS",
        "Context": "TDH LAB",
        "Name": "LIPIDS MIXED METHODS ~ Lipids mixed methods by https:\\www.tn.gov\health\topic\lab",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-02-04T13:11:27 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4903",
        "Identifier": "LOADEST",
        "Context": "USDOI\USGS",
        "Name": "Load Estimator (LOADEST): A FORTRAN Program for Estimating Constituent Loads in Streams and Rivers",
        "Description": "Load Estimator (LOADEST): A FORTRAN Program for Estimating Constituent Loads in Streams and Rivers ~ USGS . Runkel, R.L., Crawford, C.G., and Cohn, T.A.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11966\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6159",
        "Identifier": "LSC14",
        "Context": "USDOI\USGS",
        "Name": "PLUTONIUM-239\240, SS (EBERLINE)",
        "Description": "Plutonium-239\240, suspended sediment, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6160",
        "Identifier": "LUMIN",
        "Context": "USDOI\USGS",
        "Name": "PLUTONIUM-239\240, WF (EBERLINE)",
        "Description": "Plutonium-239\240, water, filtered, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770791",
        "Identifier": "Lipids Mixed Methods",
        "Context": "PACE LABS",
        "Name": "LIPIDS MIXED METHODS ~ Lipids Mixed Methods",
        "Description": "Biological Tissue Analysis - Analytes: Lipids (fat content)  In House SOP,   https:\\www.pacelabs.com\environmental-services\specialty-services\biological-tissue-analysis\methods.html",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-06-25T11:01:16 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1240",
        "Identifier": "M-01",
        "Context": "USDOE\EML",
        "Name": "Cadmium and Lead by GFAA",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1241",
        "Identifier": "M-02-CON",
        "Context": "USDOE\EML",
        "Name": "Conductivity Measurements",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1242",
        "Identifier": "M-02-MTL(AAS)",
        "Context": "USDOE\EML",
        "Name": "M-02 MTL AAS  ~ Metals in Aqueous Solutions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1243",
        "Identifier": "M-02-MTL(AES)",
        "Context": "USDOE\EML",
        "Name": "M-02 MTL AES  ~ Metals in Aqueous Solutions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1244",
        "Identifier": "M-02-PH",
        "Context": "USDOE\EML",
        "Name": "pH Measurements",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1245",
        "Identifier": "M-03",
        "Context": "USDOE\EML",
        "Name": "Trace Metals",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5092",
        "Identifier": "M5271",
        "Context": "LECK MITCHELL",
        "Name": "Turbidity of Water by Laser Nephelometry",
        "Description": "Mitchell Method M5271 ~ Leck Mitchell . Turbidity of Water by Laser Nephelometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10439\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5093",
        "Identifier": "M5331",
        "Context": "LECK MITCHELL",
        "Name": "Turbidity of Water by LED Nephelometry",
        "Description": "Mitchell Method M5331 ~ Leck Mitchell . Turbidity of Water by LED Nephelometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10440\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "121746",
        "Identifier": "M600-2-78-054",
        "Context": "USEPA",
        "Name": "Field and Laboratory Methods Applicable to Overburdens and Minesoils (EPA600-2-78-054)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2011-03-25T12:15:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2449",
        "Identifier": "MC_PEST(S)",
        "Context": "USEPA",
        "Name": "MC_PEST S  ~ Organic Analysis For Pesticides\Aroclors",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2450",
        "Identifier": "MC_PEST(W)",
        "Context": "USEPA",
        "Name": "MC_PEST W  ~ Organic Analysis For Pesticides\Aroclors",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2451",
        "Identifier": "MC_SVOA",
        "Context": "USEPA",
        "Name": "Screening Semivolatile Organic Extracts",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2452",
        "Identifier": "MC_SVOA(LS)",
        "Context": "USEPA",
        "Name": "MC_SVOA LS  ~ Semivolatile Organics in Low Conc. Soils",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2453",
        "Identifier": "MC_SVOA(MS)",
        "Context": "USEPA",
        "Name": "MC_SVOA MS  ~ Semivolatile Organics in Medium Conc. Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2454",
        "Identifier": "MC_SVOA(W)",
        "Context": "USEPA",
        "Name": "MC_SVOA W  ~ Semivolatile Organics in Waters",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2455",
        "Identifier": "MC_VOA",
        "Context": "USEPA",
        "Name": "Screening of Hexadecane Extracts",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2456",
        "Identifier": "MC_VOA(LS)",
        "Context": "USEPA",
        "Name": "MC_VOA LS  ~ Volatile Organics in Low Concentration Soils",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2457",
        "Identifier": "MC_VOA(MS)",
        "Context": "USEPA",
        "Name": "MC_VOA MS  ~ Volatile Organics in Medium Conc. Soils",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2458",
        "Identifier": "MC_VOA(W)",
        "Context": "USEPA",
        "Name": "MC_VOA W  ~ Volatile Organics in Multi-Conc. Waters",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5163",
        "Identifier": "MD DNR MBSS",
        "Context": "MD DNR",
        "Name": "Benthic Sampling Protocols for Maryland Streams",
        "Description": "MD DNR MBSS ~ MD DNR . Benthic Sampling Protocols for Maryland Streams",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9311\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3199",
        "Identifier": "ME355.01",
        "Context": "LECK MITCHELL",
        "Name": "Cyanide in Drinking Water by GC\MS",
        "Description": "ME355.01 ~ Leck Mitchell . Cyanide in Drinking Water by GC\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10443\",
        "LastChangeDate": "2010-06-10T12:22:20 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5216",
        "Identifier": "MEASURE SENSITIVITY",
        "Context": "NPS",
        "Name": "Thoma, D.P., Irwin, R.J., and Penoyer, P.E.",
        "Description": "Documenting Measurement Sensitivity and Bias of FIeld-Measured Parameters in Water Quality Monitoring Programs ~ NPS . Thoma, D.P., Irwin, R.J., and Penoyer, P.E.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11956\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "834600",
        "Identifier": "MEHG-DRY-GCAFS",
        "Context": "NIH\NLM",
        "Name": "Methylmercury in Biota by GCAFS (DRY units)",
        "Description": "This method follows the procedures published by Liang, Bloom and Horvat in Clinical Chemistry (Vol 40, No 4, 1994). Samples are homogenized and then digested in a methanolic potassium hydroxide solution. An aliquot of the digestate is analyzed by aqueous phase ethylation, purge and trap, desorption and GC separation. The separated species are then pyrolized to elemental Hg and quantified by cold vapour atomic fluorescence spectroscopy. Results are reported \"\"as MeHg\"\".",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-19T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "834602",
        "Identifier": "MEHG-WET-GCAFS",
        "Context": "NIH\NLM",
        "Name": "Methylmercury in Biota by GCAFS (WET units)",
        "Description": "This method follows the procedures published by Liang, Bloom and Horvat in Clinical Chemistry (Vol 40, No 4, 1994). Samples are homogenized and then digested in a methanolic potassium hydroxide solution. An aliquot of the digestate is analyzed by aqueous phase ethylation, purge and trap, desorption and GC separation. The separated species are then pyrolized to elemental Hg and quantified by cold vapour atomic fluorescence spectroscopy. Results are reported \"\"as MeHg\"\".",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-19T13:44:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6161",
        "Identifier": "MEMBR",
        "Context": "USDOI\USGS",
        "Name": "PLUTONIUM-239\240, WU (EBERLINE)",
        "Description": "Plutonium-239\240, water, unfiltered, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6062",
        "Identifier": "MET-TDIG",
        "Context": "ALS",
        "Name": "Sample Preparation of Biological Tissue for Metals Analysis by CVAA, ICP-OES and ICP-MS",
        "Description": "https:\\www.alsglobal.com\en\Search#q=Biological%20Tissue%20",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2025-04-25T10:42:26 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "870283",
        "Identifier": "MLA-110 Rev 02",
        "Context": "SGS_AXYS",
        "Name": "SGS AXYS MLA-110 Rev 02",
        "Description": "Per-and Polyfluoroalkyl Substances (PFAS) Analysis NEW! DoD ELAP Accreditation for PFAS Draft EPA 1633",
        "QualifierType": "",
        "URL": "https:\\www.sgsaxys.com\sampling-analysis\pfas\",
        "LastChangeDate": "2025-09-17T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5061",
        "Identifier": "MLM ASSEMBLAGE",
        "Context": "USEPA",
        "Name": "Maximum Likelihood Method for Predicting Environmental Conditions from Assemblage Composition",
        "Description": "Maximum Likelihood Method for Predicting Environmental Conditions from Assemblage Composition ~ EPA . Yuan, Lester L.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11949\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1176",
        "Identifier": "MM100",
        "Context": "USDOE\ASD",
        "Name": "ICP\MS Radionuclide Analyses",
        "Description": "MM100 ~ DOE . ICP\MS Radionuclide Analyses",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4766\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1177",
        "Identifier": "MM210",
        "Context": "USDOE\ASD",
        "Name": "ICP\MS of Th230, Tc99 and U234",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1178",
        "Identifier": "MM800",
        "Context": "USDOE\ASD",
        "Name": "ICP\MS of Uranium in Water",
        "Description": "MM800 ~ DOE . ICP\MS of Uranium in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4767\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6162",
        "Identifier": "MS007",
        "Context": "USDOI\USGS",
        "Name": "POLONIUM-210, BED, ALPHA (STL)",
        "Description": "Polonium-210, bed sediment, by alpha apectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6163",
        "Identifier": "MS020",
        "Context": "USDOI\USGS",
        "Name": "POLONIUM-210, SUS, ALPHA (STL)",
        "Description": "Polonium-210, suspended sediment, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6164",
        "Identifier": "MS042",
        "Context": "USDOI\USGS",
        "Name": "POLONIUM-210, WF, ALPHA (STL)",
        "Description": "Polonium-210, water, filtered, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1179",
        "Identifier": "MS100",
        "Context": "USDOE\ASD",
        "Name": "Reflectometry-Based Instrument",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1180",
        "Identifier": "MS110",
        "Context": "USDOE\ASD",
        "Name": "Colorimetric Test for CrO4+",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1181",
        "Identifier": "MS210",
        "Context": "USDOE\ASD",
        "Name": "Colorimetric Test for Lead in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4731",
        "Identifier": "MS310",
        "Context": "USDOE\ASD",
        "Name": "Nitrate in Water by Colorimetric Test",
        "Description": "MS310 ~ DOE . Nitrate in Water by Colorimetric Test",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4768\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1182",
        "Identifier": "MS310(S)",
        "Context": "USDOE\ASD",
        "Name": "MS310 S  ~ Colorimetric Test for NO3+ in Soil",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1183",
        "Identifier": "MS310(W)",
        "Context": "USDOE\ASD",
        "Name": "MS310 W  ~ Colorimetric Test for NO3+ in Water",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1184",
        "Identifier": "MS410(W)",
        "Context": "USDOE\ASD",
        "Name": "MS410 W  ~ Colorimetric Test for Nickel in Water",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743450",
        "Identifier": "MST",
        "Context": "USDOI\USGS",
        "Name": "Microbial Source-Tracking and Detection Techniques",
        "Description": "Application of Molecular Microbial Technologies to USGS Science  https:\\water.usgs.gov\owq\application.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2018-02-15T07:52:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1185",
        "Identifier": "MU012R",
        "Context": "USDOE\ASD",
        "Name": "Cyanide by Microdistillation and Argento",
        "Description": "MU012R ~ DOE . Cyanide by Microdistillation and Argento",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4769\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5068",
        "Identifier": "MULTI-METRIC INDICES",
        "Context": "USEPA",
        "Name": "Process for Creating Multi-Metric Indices for Large-Scale Aquatic Surveys",
        "Description": "Process for Creating Multi-Metric Indices for Large-Scale Aquatic Surveys ~ EPA . Stoddard, J.L., Herlihy, A.T., Peck, D.V., Hughes, R.M., Whittier, R.R., and Tarquinio, E.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11958\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770762",
        "Identifier": "Mobile Laboratory",
        "Context": "PACE LABS",
        "Name": "Mobile Laboratory",
        "Description": "https:\\www.pacelabs.com\assets\documents\Environmental\capabilities-2015.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-06-24T09:02:04 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5245",
        "Identifier": "NAWQA ALGAL DTH",
        "Context": "USDOI\USGS",
        "Name": "Algal Sample Collection at Depositional-Targeted Habitat (DTH) in wadeable streams by SG-92 (and other instruments)",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\12235\",
        "LastChangeDate": "2014-01-14T23:55:09 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5249",
        "Identifier": "NAWQA ALGAL QMH",
        "Context": "USDOI\USGS",
        "Name": "Algal Sample Collection at Qualitative Multihabitat (QMH) in wadeable streams by SG-92 (and other instruments)",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\12236\",
        "LastChangeDate": "2014-01-14T23:55:09 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5247",
        "Identifier": "NAWQA ALGAL RTH",
        "Context": "USDOI\USGS",
        "Name": "Algal Sample Collection at Richest-Targeted Habitat (RTH) in wadeable streams by SG-92 (and other instruments)",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\12234\",
        "LastChangeDate": "2014-01-14T23:55:09 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5248",
        "Identifier": "NAWQA FISH",
        "Context": "USDOI\USGS",
        "Name": "Fish Sample Collection in Wadeable Streams by Electrofishing and Seine",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\12237\",
        "LastChangeDate": "2014-01-14T23:55:09 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4904",
        "Identifier": "NAWQA GW TRENDS",
        "Context": "USDOI\USGS",
        "Name": "US Geological Survey",
        "Description": "NAWQA Groundwater-Quality Trends ~ USGS NAWQA . US Geological Survey",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11963\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5252",
        "Identifier": "NAWQA INVERT QMH",
        "Context": "USDOI\USGS",
        "Name": "Invertebrate Sample Collection at Qualitiative Multiple Habitat (QMH) in wadeable streams by D-net",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\12233\",
        "LastChangeDate": "2014-01-14T23:55:09 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5250",
        "Identifier": "NAWQA INVERT RTH",
        "Context": "USDOI\USGS",
        "Name": "Invertebrate Sample Collection at Richest Targeted Habitat (RTH) in wadeable streams by Slack sampler",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\12232\",
        "LastChangeDate": "2014-01-14T23:55:09 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5253",
        "Identifier": "NAWQA PHYTOPLANKTON",
        "Context": "USDOI\USGS",
        "Name": "Algal phytoplankton sample collection in wadeable streams by SG-92 (and other instruments)",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\12240\",
        "LastChangeDate": "2014-01-14T23:55:09 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4905",
        "Identifier": "NFM 4.1.1.A EWI",
        "Context": "USDOI\USGS",
        "Name": "Collection of stream samples using the equal-width-increment (EWI) method",
        "Description": "NFM 4.1.1.A EWI ~ USGS-OWQ . Collection of stream samples using the equal-width-increment (EWI) method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9366\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4906",
        "Identifier": "NFM 4.1.3.A EDI",
        "Context": "USDOI\USGS",
        "Name": "Collection of isokinetic, depth-integrated stream samples using the equal-discharge-increment (EDI) method",
        "Description": "NFM 4.1.3.A EDI ~ USGS-OWQ . Collection of isokinetic, depth-integrated stream samples using the equal-discharge-increment (EDI) method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9365\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4907",
        "Identifier": "NFM 4.1.3.A EWI",
        "Context": "USDOI\USGS",
        "Name": "Collection of isokinetic, depth-integrated stream samples using equal-width-increments (EWI)",
        "Description": "NFM 4.1.3.A EWI ~ USGS-OWQ . Collection of isokinetic, depth-integrated stream samples using equal-width-increments (EWI)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9369\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4908",
        "Identifier": "NFM 4.1.3.A VCF",
        "Context": "USDOI\USGS",
        "Name": "Collection of stream samples using the single vertical at centroid-of-flow (VCF) method",
        "Description": "NFM 4.1.3.A VCF ~ USGS-OWQ . Collection of stream samples using the single vertical at centroid-of-flow (VCF) method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9368\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4909",
        "Identifier": "NFM 4.2",
        "Context": "USDOI\USGS",
        "Name": "Collection of ground-water samples at supply and monitoring wells",
        "Description": "NFM 4.2 Ground-Water Sampling ~ USGS-OWQ . Collection of ground-water samples at supply and monitoring wells",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9501\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4910",
        "Identifier": "NFM 6.1.3.B",
        "Context": "USDOI\USGS",
        "Name": "Temperature measurement of surface water",
        "Description": "NFM 6.1.3.B ~ USGS-OWQ . Temperature measurement of surface water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9217\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4911",
        "Identifier": "NFM 6.1.3.C",
        "Context": "USDOI\USGS",
        "Name": "Temperature measurement of ground water",
        "Description": "NFM 6.1.3.C ~ USGS-OWQ . Temperature measurement of ground water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9219\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4912",
        "Identifier": "NFM 6.2.1-AMP",
        "Context": "USDOI\USGS",
        "Name": "Dissolved-oxygen concentration, field measurement by amperometric method",
        "Description": "NFM 6.2.1-Amp ~ USGS-OWQ . Dissolved-oxygen concentration, field measurement by amperometric method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9216\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4913",
        "Identifier": "NFM 6.2.1-LUM",
        "Context": "USDOI\USGS",
        "Name": "Dissolved-oxygen concentration, field measurement by luminescent sensor",
        "Description": "NFM 6.2.1-Lum ~ USGS-OWQ . Dissolved-oxygen concentration, field measurement by luminescent sensor",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9207\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4914",
        "Identifier": "NFM 6.2.2-SPEC",
        "Context": "USDOI\USGS",
        "Name": "Dissolved-oxygen concentrations, field measurement by spectrophotometry",
        "Description": "NFM 6.2.2-Spec ~ USGS-OWQ . Dissolved-oxygen concentrations, field measurement by spectrophotometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9208\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4915",
        "Identifier": "NFM 6.2.3-IODO",
        "Context": "USDOI\USGS",
        "Name": "Dissolved-oxygen concentrations in water by iodometric (Winkler) method",
        "Description": "NFM 6.2.3-Iodo ~ USGS-OWQ . Dissolved-oxygen concentrations in water by iodometric (Winkler) method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9218\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4916",
        "Identifier": "NFM 6.3.3.A-SW",
        "Context": "USDOI\USGS",
        "Name": "Specific conductance of surface water, electrometric measurement",
        "Description": "NFM 6.3.3.A-SW ~ USGS-OWQ . Specific conductance of surface water, electrometric measurement",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9211\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4917",
        "Identifier": "NFM 6.3.3.B-GW",
        "Context": "USDOI\USGS",
        "Name": "Specific conductance of ground water, electrometric measurement",
        "Description": "NFM 6.3.3.B-GW ~ USGS-OWQ . Specific conductance of ground water, electrometric measurement",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9215\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4918",
        "Identifier": "NFM 6.4.3.A-SW",
        "Context": "USDOI\USGS",
        "Name": "pH (hydronium-ion activity) of surface water, in-situ electrometric method",
        "Description": "NFM 6.4.3.A-SW ~ USGS-OWQ . pH (hydronium-ion activity) of surface water, in-situ electrometric method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9204\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4919",
        "Identifier": "NFM 6.4.3.B-GW",
        "Context": "USDOI\USGS",
        "Name": "pH (hydronium-ion activity) of ground water, in-situ electrometric method",
        "Description": "NFM 6.4.3.B-GW ~ USGS-OWQ . pH (hydronium-ion activity) of ground water, in-situ electrometric method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9214\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4920",
        "Identifier": "NFM 6.4.3.C",
        "Context": "USDOI\USGS",
        "Name": "pH (hydronium-ion activity) of environmental water subsamples, on-site electrometric method",
        "Description": "NFM 6.4.3.C ~ USGS-OWQ . pH (hydronium-ion activity) of environmental water subsamples, on-site electrometric method",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9213\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4921",
        "Identifier": "NFM 6.5",
        "Context": "USDOI\USGS",
        "Name": "Reduction-oxidation potential, electrometric field measurement by platinum electrode",
        "Description": "NFM 6.5 ~ USGS-OWQ . Reduction-oxidation potential, electrometric field measurement by platinum electrode",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9205\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4922",
        "Identifier": "NFM 6.6.4.B",
        "Context": "USDOI\USGS",
        "Name": "Alkalinity and ANC field determination by Inflection Point Titration",
        "Description": "NFM 6.6.4.B ~ USGS-OWQ . Alkalinity and ANC field determination by Inflection Point Titration",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9212\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4923",
        "Identifier": "NFM 6.6.4.C",
        "Context": "USDOI\USGS",
        "Name": "Alkalinity and ANC field determination by Gran Function Plot",
        "Description": "NFM 6.6.4.C ~ USGS-OWQ . Alkalinity and ANC field determination by Gran Function Plot",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9206\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3224",
        "Identifier": "NFM6.6.4C",
        "Context": "USDOI\USGS",
        "Name": "GRAN FUNCTION PLOT METHOD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-07-02T16:56:44 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1246",
        "Identifier": "NH3-01",
        "Context": "USDOE\EML",
        "Name": "Ammonium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5227",
        "Identifier": "NITRATE V(III) REDUC",
        "Context": "UC-DAVIS",
        "Name": "Nitrate via manual vanadium(III) reduction",
        "Description": "Nitrate via V(III) reduction ~ UC-Davis . Nitrate via manual vanadium(III) reduction",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9171\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1148",
        "Identifier": "NITRO-1",
        "Context": "USDOC\NOAA",
        "Name": "Ammonia in Water - AutoAnalyzer",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1149",
        "Identifier": "NITRO-10",
        "Context": "USDOC\NOAA",
        "Name": "Nitrite Nitrogen in Saline Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1150",
        "Identifier": "NITRO-11",
        "Context": "USDOC\NOAA",
        "Name": "Nitrite Nitrogen in Seawater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1151",
        "Identifier": "NITRO-12",
        "Context": "USDOC\NOAA",
        "Name": "Nitrate Nitrogen in Saline Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1152",
        "Identifier": "NITRO-13",
        "Context": "USDOC\NOAA",
        "Name": "Determination of Ammonium Nitrogen",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1153",
        "Identifier": "NITRO-14",
        "Context": "USDOC\NOAA",
        "Name": "Nitrite Nitrogen in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1154",
        "Identifier": "NITRO-15",
        "Context": "USDOC\NOAA",
        "Name": "Nitrate plus Nitrite in Sediment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1155",
        "Identifier": "NITRO-16",
        "Context": "USDOC\NOAA",
        "Name": "Total Kjehdahl Nitrogen",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1156",
        "Identifier": "NITRO-17",
        "Context": "USDOC\NOAA",
        "Name": "Ammonia in Saline Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1157",
        "Identifier": "NITRO-18",
        "Context": "USDOC\NOAA",
        "Name": "Ammonia Plus Amino Acids",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1158",
        "Identifier": "NITRO-19",
        "Context": "USDOC\NOAA",
        "Name": "Reactive Nitrate in Seawater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1159",
        "Identifier": "NITRO-2",
        "Context": "USDOC\NOAA",
        "Name": "Ammonia in Water - Phenate",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1160",
        "Identifier": "NITRO-20",
        "Context": "USDOC\NOAA",
        "Name": "Reactive Nitrite in Seawater",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1161",
        "Identifier": "NITRO-23",
        "Context": "USDOC\NOAA",
        "Name": "Ammonia in Water - Distillation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1162",
        "Identifier": "NITRO-24",
        "Context": "USDOC\NOAA",
        "Name": "Ammonia in Water - Ion Selective",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1163",
        "Identifier": "NITRO-25",
        "Context": "USDOC\NOAA",
        "Name": "TKN - Phenate, AutoAnalyzer",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1164",
        "Identifier": "NITRO-3",
        "Context": "USDOC\NOAA",
        "Name": "Ammonia - AutoAnalyzer",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1165",
        "Identifier": "NITRO-4",
        "Context": "USDOC\NOAA",
        "Name": "Ammonia - Colorimetric",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1166",
        "Identifier": "NITRO-5",
        "Context": "USDOC\NOAA",
        "Name": "TKN - Block Digestor, Automated",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1167",
        "Identifier": "NITRO-6",
        "Context": "USDOC\NOAA",
        "Name": "TKN - Colorimetric",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1168",
        "Identifier": "NITRO-7",
        "Context": "USDOC\NOAA",
        "Name": "TKN - Spectrophotometric",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1169",
        "Identifier": "NITRO-8",
        "Context": "USDOC\NOAA",
        "Name": "Nitrate-Nitrite in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1170",
        "Identifier": "NITRO-9",
        "Context": "USDOC\NOAA",
        "Name": "Nitrate plus Nitrite Nitrogen",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5225",
        "Identifier": "NO3 EASYCHEM",
        "Context": "SYSTEA SCIENTIFIC",
        "Name": "Nitrate in Water by Colorimetry",
        "Description": "NO3 EasyChem ~ Systea Scientific . Nitrate in Water by Colorimetry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10442\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5280",
        "Identifier": "NO3NO2 EASYCHEM",
        "Context": "SYSTEA SCIENTIFIC",
        "Name": "Nitrate-Nitrite in Water by Colorimetry",
        "Description": "NO3NO2 EasyChem ~ Systea Scientific . Nitrite-Nitrate in Water by Colorimetry",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-11-07T07:13:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5251",
        "Identifier": "NRSA FISH (BOAT)",
        "Context": "USEPA",
        "Name": "Electrofishing procedures for large non-wadeable rivers",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\12311\",
        "LastChangeDate": "2014-01-14T23:55:09 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5246",
        "Identifier": "NRSA FISH (WADE)",
        "Context": "USEPA",
        "Name": "Electrofishing procedures in small wadeable streams",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\12302\",
        "LastChangeDate": "2014-01-14T23:55:09 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5746",
        "Identifier": "NRSA Microcystins 2013 (Boat)",
        "Context": "USEPA",
        "Name": "Microcystin (alga toxin) sample collection in large non-wadeable rivers",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5747",
        "Identifier": "NRSA Microcystins 2013 (Wade)",
        "Context": "USEPA",
        "Name": "Microcystin (alga toxin) sample collection in small wadeable streams",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "734488",
        "Identifier": "NRSA09 W Qual (Boat)",
        "Context": "USEPA",
        "Name": "Section 5.1: Non-Wadeable Rivers-Water Quality of National Rivers and Streams Assessment: Field Operations Manual (2009)",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\12561\",
        "LastChangeDate": "2017-04-10T10:28:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5321",
        "Identifier": "NRSA13 Fish (Wade)",
        "Context": "USEPA",
        "Name": "Fish sampling in small wadeable streams by electrofishing",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\12302\",
        "LastChangeDate": "2015-09-14T12:21:14 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5319",
        "Identifier": "NRSA13Microcys(Boat)",
        "Context": "USEPA",
        "Name": "Microcystin (alga toxin) sample collection in large non-wadeable rivers",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\12569\",
        "LastChangeDate": "2015-09-14T12:21:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5320",
        "Identifier": "NRSA13Microcys(Wade)",
        "Context": "USEPA",
        "Name": "Microcystin (alga toxin) sample collection in small wadeable streams",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\12570\",
        "LastChangeDate": "2015-09-14T12:21:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5982",
        "Identifier": "NSL_WQ10",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ10",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LMWQ2",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5981",
        "Identifier": "NSL_WQ11",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ11",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LMWQ2",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5998",
        "Identifier": "NSL_WQ12",
        "Context": "USDA\ARS",
        "Name": "NSL_WQ12",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ12",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:10 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5956",
        "Identifier": "NSL_WQ13",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ13",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ13",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5957",
        "Identifier": "NSL_WQ14",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ14",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ14",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5980",
        "Identifier": "NSL_WQ15",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ15",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LMWQ2",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5958",
        "Identifier": "NSL_WQ16",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ16",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ16",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5959",
        "Identifier": "NSL_WQ17",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ17",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ17",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5960",
        "Identifier": "NSL_WQ18",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ18",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ18",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5961",
        "Identifier": "NSL_WQ4",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ4",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ4",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5962",
        "Identifier": "NSL_WQ5",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ5",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ5",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5963",
        "Identifier": "NSL_WQ6",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ6",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ6",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5964",
        "Identifier": "NSL_WQ7",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ7",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ7",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5965",
        "Identifier": "NSL_WQ8",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ8",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ8",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5983",
        "Identifier": "NSL_WQ9",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSL_WQ9",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=PSWMRU_WQ2",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5913",
        "Identifier": "NSTL_WQ1",
        "Context": "USDA\ARS",
        "Name": "Determination of Nitrate\Nitrite by Flow Injection Analysis",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSTL_WQ1",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-13T14:50:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5910",
        "Identifier": "NSTL_WQ1.1",
        "Context": "USDA\ARS",
        "Name": "Determination of Nitrate\Nitrite by Flow Injection Analysis",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSTL_WQ1.1",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-13T14:50:57 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5911",
        "Identifier": "NSTL_WQ2",
        "Context": "USDA\ARS",
        "Name": "Determination of Orthophosphate in Waters by Flow Injection Analysis Colorimetry",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSTL_WQ2",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-13T14:50:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5912",
        "Identifier": "NSTL_WQ3",
        "Context": "USDA\ARS",
        "Name": "Determination of Total Phosphorus by Flow Injection Analysis Colorimetry (Acid Persulfate Digestion Method)",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSTL_WQ3",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-13T14:50:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5915",
        "Identifier": "NSTL_WQ4",
        "Context": "USDA\ARS",
        "Name": "Extraction and Analysis of Herbicides in Water",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSTL_WQ4",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-15T23:02:46 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5914",
        "Identifier": "NSTL_WQ6",
        "Context": "USDA\ARS",
        "Name": "Suspended sediment in water",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=NSTL_WQ6",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-13T14:50:58 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5231",
        "Identifier": "NUM ECOLOGY",
        "Context": "UBC",
        "Name": "Legendre, P. and Legendre, L.",
        "Description": "Numerical Ecology: Developments in Environmental Modelling ~  . Legendre, P. and Legendre, L.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11944\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5748",
        "Identifier": "Nitrate via V(III) reduction",
        "Context": "UCD",
        "Name": "Nitrate via V(III) reduction",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2459",
        "Identifier": "O-001-1",
        "Context": "USEPA",
        "Name": "Pentachlorophenol in Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2460",
        "Identifier": "O-002-1",
        "Context": "USEPA",
        "Name": "TPH in Soil by IR of Freon Extract",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2461",
        "Identifier": "O-003-1",
        "Context": "USEPA",
        "Name": "TPH in Soil by GC\PID of Methanol Extract",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2462",
        "Identifier": "O-004-1",
        "Context": "USEPA",
        "Name": "TPH in Soil by GC\FID of CH2Cl2 Extracts",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2463",
        "Identifier": "O-005-1",
        "Context": "USEPA",
        "Name": "Phenols in Water and Soil by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2464",
        "Identifier": "O-006-1",
        "Context": "USEPA",
        "Name": "TPH by Headspace GC\PID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2465",
        "Identifier": "O-008-1",
        "Context": "USEPA",
        "Name": "Pentachlorophenol in Soil by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2466",
        "Identifier": "O-009-1",
        "Context": "USEPA",
        "Name": "TPH in Soil by GC\FID of CH2Cl2 Extracts",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4925",
        "Identifier": "O-1104",
        "Context": "USDOI\USGS",
        "Name": "Organochlorine and organophosphorous compounds, dissolved",
        "Description": "O-1104 ~ USGS-NWQL . Organochlorine and organophosphorous compounds, dissolved",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5516\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5849",
        "Identifier": "O-1105***retired*** O1105",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***O-1105 ~ Chlorophenoxy acids, total recoverable",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4926",
        "Identifier": "O-1121-91",
        "Context": "USDOI\USGS",
        "Name": "Organonitrogen Herbicides in Water by Solid Phase Extraction, GC\MS",
        "Description": "O-1121-91 ~ USGS-NWQL . Organonitrogen Herbicides in Water by Solid Phase Extraction, GC\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8969\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4927",
        "Identifier": "O-1122-92",
        "Context": "USDOI\USGS",
        "Name": "Dissolved Organic Carbon in Water by Persulfate Oxidation and Infrared Spectrometry",
        "Description": "O-1122-92 ~ USGS-NWQL . Dissolved Organic Carbon in Water by Persulfate Oxidation and Infrared Spectrometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8923\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4928",
        "Identifier": "O-1124-94",
        "Context": "USDOI\USGS",
        "Name": "Nitroaromatic compunds in water by HPLC",
        "Description": "O-1124-94 ~ USGS-NWQL . Nitroaromatic compunds in water by HPLC",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9349\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4929",
        "Identifier": "O-1126-02",
        "Context": "USDOI\USGS",
        "Name": "Pesticides in Water by C-18 Solid-Phase Extraction and GC-MS",
        "Description": "O-1126-02 ~ USGS-NWQL . Pesticides in Water by C-18 Solid-Phase Extraction and GC-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8968\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3086",
        "Identifier": "O-1126-95",
        "Context": "USDOI\USGS",
        "Name": "Pesticides in Water by C-18 Solid-Phase Extraction and GC-MS",
        "Description": "O-1126-95 ~ USGS-NWQL . Pesticides in Water by C-18 Solid-Phase Extraction and GC-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8931\",
        "LastChangeDate": "2007-12-14T14:44:41 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3085",
        "Identifier": "O-1131-95",
        "Context": "USDOI\USGS",
        "Name": "Pesticides in Water by Solid Phase Extraction and High Performance Liquid Chromatography (HPLC)",
        "Description": "O-1131-95 ~ USGS-NWQL . Pesticides in Water by Solid Phase Extraction and High Performance Liquid Chromatography (HPLC)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8932\",
        "LastChangeDate": "2007-12-14T14:44:41 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4930",
        "Identifier": "O-1402-01",
        "Context": "USDOI\USGS",
        "Name": "Organophosphate Pesticides, Filtered Water, Gas Chromatography",
        "Description": "O-1402-01 ~ USGS-NWQL . Organophosphate Pesticides, Filtered Water, Gas Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8942\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4931",
        "Identifier": "O-1433-01",
        "Context": "USDOI\USGS",
        "Name": "Wastewater compounds in water by SPE and GC\MS",
        "Description": "O-1433-01 ~ USGS-NWQL . Wastewater compounds in water by SPE and GC\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8937\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4932",
        "Identifier": "O-2002-01",
        "Context": "USDOI\USGS",
        "Name": "Pesticides and Selected Degradates in Water by C-18 Solid-Phase Extraction and GC\MS",
        "Description": "O-2002-01 ~ USGS-NWQL . Pesticides and Selected Degradates in Water by C-18 Solid-Phase Extraction and GC\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8979\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4933",
        "Identifier": "O-2060-01",
        "Context": "USDOI\USGS",
        "Name": "Pesticides in Water by SPE and HPLC-MS",
        "Description": "O-2060-01 ~ USGS-NWQL . Pesticides in Water by SPE and HPLC-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8939\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4934",
        "Identifier": "O-2080-08",
        "Context": "USDOI\USGS",
        "Name": "Pharmaceuticals in Water by SPE and HPLC-MS",
        "Description": "O-2080-08 ~ USGS-NWQL . Pharmaceuticals in Water by SPE and HPLC-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9801\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4935",
        "Identifier": "O-2136-01",
        "Context": "USDOI\USGS",
        "Name": "Glyphosate, Aminomethylphosphonic Acid, and Glufosinate in Water by Liquid Chromatography\Mass Spectrometry",
        "Description": "O-2136-01 ~ USGS-NWQL . Glyphosate, Aminomethylphosphonic Acid, and Glufosinate in Water by Liquid Chromatography\Mass Spectrometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8958\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "818960",
        "Identifier": "O-2141-09",
        "Context": "USDOI\USGS",
        "Name": "Glyphosate, Aminomethylphosphonic Acid, and Glufosinate in Water by Liquid Chromatography\ Tandem Mass Spectrometry",
        "Description": "O-2141-09 ~ USGS-NWQL . https:\\pubs.usgs.gov\tm\tm5a10\pdf\tm5a10.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-03-10T16:30:01 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5864",
        "Identifier": "O-2143-09",
        "Context": "USDOI\USGS",
        "Name": "Pyrethroid Insecticides in Water Using GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5850",
        "Identifier": "O-2434-12",
        "Context": "USDOI\USGS",
        "Name": "Hormones in Filtered Water by GC-MS\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:06 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "743092",
        "Identifier": "O-2440-14",
        "Context": "USDOI\USGS",
        "Name": "Pharmaceuticals in Water by HPLC-MS\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2017-12-05T15:42:09 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5851",
        "Identifier": "O-3100***retired*** O3100",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***O-3100 ~ Carbon, organic, total (mg\L as C)",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5852",
        "Identifier": "O-3104***retired*** O3104",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***O-3104 ~ Organochlorine and organophosphorous compounds, total recoverable",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5853",
        "Identifier": "O-3105***retired*** O3105",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***O-3105 ~ Chlorophenoxy acids, total recoverable",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4936",
        "Identifier": "O-3106-93",
        "Context": "USDOI\USGS",
        "Name": "Triazines in Water by Gas Chromatography",
        "Description": "O-3106-93 ~ USGS-NWQL . Triazines in Water by Gas Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8930\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5854",
        "Identifier": "O-3113***retired*** O3113",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***O-3113 ~ Polynuclear Aromatic Hydrocarbons",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5855",
        "Identifier": "O-3115***retired*** O3115",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***O-3115 ~ Purgeable Organic Compounds in Water",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4937",
        "Identifier": "O-3116-87",
        "Context": "USDOI\USGS",
        "Name": "Base\neutral and acid extractable compounds, whole water recoverable, in water by GC\MS",
        "Description": "O-3116-87 ~ USGS-NWQL . Base\neutral and acid extractable compounds, whole water recoverable, in water by GC\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9615\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4938",
        "Identifier": "O-3118-83",
        "Context": "USDOI\USGS",
        "Name": "Base\Neutral Extractable Compounds in Water by GC-MS",
        "Description": "O-3118-83 ~ USGS-NWQL . Base\Neutral Extractable Compounds in Water by GC-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8924\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4939",
        "Identifier": "O-3120-90",
        "Context": "USDOI\USGS",
        "Name": "1,2-Dibromomethane (EDB) and 1,2-dibromo-3-chloropropane (DBCP) in Water by Gas Chromatography",
        "Description": "O-3120-90 ~ USGS-NWQL . 1,2-Dibromomethane (EDB) and 1,2-dibromo-3-chloropropane (DBCP) in Water by Gas Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8927\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4940",
        "Identifier": "O-3128-95",
        "Context": "USDOI\USGS",
        "Name": "Methylene Blue Active Substances in Water by Spectrophotometry, Whole Water Recoverable",
        "Description": "O-3128-95 ~ USGS-NWQL . Methylene Blue Active Substances in Water by Spectrophotometry, Whole Water Recoverable",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8959\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4941",
        "Identifier": "O-3402-03",
        "Context": "USDOI\USGS",
        "Name": "Organophosphate pesticides, Whole water, Gas Chromatography",
        "Description": "O-3402-03 ~ USGS-NWQL . Organophosphate pesticides, Whole water, Gas Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8944\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4942",
        "Identifier": "O-4024-03",
        "Context": "USDOI\USGS",
        "Name": "Volatile organic compounds, whole water, gas chromatography\mass spectrometry, heated purge and trap",
        "Description": "O-4024-03 ~ USGS-NWQL . Volatile organic compounds, whole water, gas chromatography\mass spectrometry, heated purge and trap",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8882\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4943",
        "Identifier": "O-4127-96",
        "Context": "USDOI\USGS",
        "Name": "Volatile Organic Compounds in Water by GC-MS",
        "Description": "O-4127-96 ~ USGS-NWQL . Volatile Organic Compounds in Water by GC-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8933\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5856",
        "Identifier": "O-4433-06",
        "Context": "USDOI\USGS",
        "Name": "Wastewater Compounds in Water by CLLE and GC-MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:06 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5857",
        "Identifier": "O-4434-12",
        "Context": "USDOI\USGS",
        "Name": "Steroid Hormones in Unfiltered Water by GC-MS\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:06 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4944",
        "Identifier": "O-5101-83",
        "Context": "USDOI\USGS",
        "Name": "Carbon in Bottom Material by Induction Furnace, Dry Weight",
        "Description": "O-5101-83 ~ USGS-NWQL . Carbon in Bottom Material by Induction Furnace, Dry Weight",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8980\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5858",
        "Identifier": "O-5104***retired*** O5104",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***O-5104 ~ Organochlorine and organophosphorous compounds, recoverable from bottom material",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4945",
        "Identifier": "O-5129-95",
        "Context": "USDOI\USGS",
        "Name": "Organochlorine Pesticides and Gross Polychlorinated Biphenyls in Bottom Sediment by Gas Chromatography",
        "Description": "O-5129-95 ~ USGS-NWQL . Organochlorine Pesticides and Gross Polychlorinated Biphenyls in Bottom Sediment by Gas Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8960\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4946",
        "Identifier": "O-5130-95",
        "Context": "USDOI\USGS",
        "Name": "Semivolatile organic compounds in Bottom Sediment by High-performance Gel Permeation Chromatography, Capillary-column GC",
        "Description": "O-5130-95 ~ USGS-NWQL . Semivolatile organic compounds in Bottom Sediment by High-performance Gel Permeation Chromatography, Capillary-column GC\MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8963\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4947",
        "Identifier": "O-5404-02",
        "Context": "USDOI\USGS",
        "Name": "Organophosphate pesticides, bottom sediment, high-performance gel-permeation chromatography, gas chromatography",
        "Description": "O-5404-02 ~ USGS-NWQL . Organophosphate pesticides, bottom sediment, high-performance gel-permeation chromatography, gas chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8943\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4948",
        "Identifier": "O-5504-03",
        "Context": "USDOI\USGS",
        "Name": "Organochlorine Pesticides and Polychlorinated Biphenyls in Bottom and Suspended Sediment by Gas Chromatography with Elec",
        "Description": "O-5504-03 ~ USGS-NWQL . Organochlorine Pesticides and Polychlorinated Biphenyls in Bottom and Suspended Sediment by Gas Chromatography with Electron Capture Detection",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8946\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4949",
        "Identifier": "O-5505-03",
        "Context": "USDOI\USGS",
        "Name": "Polycyclic aromatic hydrocarbons, sediment, capillary-column gas chromatography\mass spectrometry",
        "Description": "O-5505-03 ~ USGS-NWQL . Polycyclic aromatic hydrocarbons, sediment, capillary-column gas chromatography\mass spectrometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8947\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5859",
        "Identifier": "O-5506-06",
        "Context": "USDOI\USGS",
        "Name": "PAHs in Soils, Bottom Sediment, and Solids by GC-MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4950",
        "Identifier": "O-7100-83",
        "Context": "USDOI\USGS",
        "Name": "Suspended Organic Carbon (SOC) in Water",
        "Description": "O-7100-83 ~ USGS-NWQL . Suspended Organic Carbon (SOC) in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8916\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5860",
        "Identifier": "O-7104***retired*** O7104",
        "Context": "USDOI\USGS",
        "Name": "DO NOT USE***O-7104 ~ Organochlorine and organophosphorous compounds, recoverable from bottom material",
        "Description": "DO NOT USE ~ ",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4951",
        "Identifier": "O-7504-03",
        "Context": "USDOI\USGS",
        "Name": "Determination of Organochlorine Pesticides and Polychlorinated Biphenyls in Bottom and Suspended Sediment by Gas Chromat",
        "Description": "O-7504-03 ~ USGS-NWQL . Determination of Organochlorine Pesticides and Polychlorinated Biphenyls in Bottom and Suspended Sediment by Gas Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\8945\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1564",
        "Identifier": "O1105",
        "Context": "USDOI\USGS",
        "Name": "O-1105 ~ Dissolved Chlorophenoxy Acids in Water",
        "Description": "O-1105 ~ USGS-NWQL . Chlorophenoxy acids, total recoverable",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5517\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1565",
        "Identifier": "O3100",
        "Context": "USDOI\USGS",
        "Name": "O-3100 ~ Total Organic Carbon in Water",
        "Description": "O-3100 ~ USGS-NWQL . Carbon, organic, total (mg\L as C)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5566\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1566",
        "Identifier": "O3104",
        "Context": "USDOI\USGS",
        "Name": "O-3104 ~ Organochlorine and -phosphorous in Water",
        "Description": "O-3104 ~ USGS-NWQL . Organochlorine and organophosphorous compounds, total recoverable",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5518\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1567",
        "Identifier": "O3105",
        "Context": "USDOI\USGS",
        "Name": "O-3105 ~ Total Chlorophenoxy Acids in Water",
        "Description": "O-3105 ~ USGS-NWQL . Chlorophenoxy acids, total recoverable",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5519\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1568",
        "Identifier": "O3106",
        "Context": "USDOI\USGS",
        "Name": "Total Recoverable Triazines in Water",
        "Description": "https:\\www.nemi.gov\methods\method_summary\8930\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1569",
        "Identifier": "O3107",
        "Context": "USDOI\USGS",
        "Name": "Carbamate Pesticides in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1570",
        "Identifier": "O3108",
        "Context": "USDOI\USGS",
        "Name": "Extractable Oil and Grease in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1571",
        "Identifier": "O3109",
        "Context": "USDOI\USGS",
        "Name": "Light Fuel Oils in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1572",
        "Identifier": "O3110",
        "Context": "USDOI\USGS",
        "Name": "Total Recoverable Phenols in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1573",
        "Identifier": "O3111",
        "Context": "USDOI\USGS",
        "Name": "Methylene Blue Active Substance in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1574",
        "Identifier": "O3112",
        "Context": "USDOI\USGS",
        "Name": "TNT, RDX and Picric Acid in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1575",
        "Identifier": "O3113",
        "Context": "USDOI\USGS",
        "Name": "O-3113 ~ Polynuclear Aromatic Hydrocarbons",
        "Description": "O-3113 ~ USGS-NWQL . Polynuclear Aromatic Hydrocarbons",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4771\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1576",
        "Identifier": "O3114",
        "Context": "USDOI\USGS",
        "Name": "Ethylene and Propane in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1577",
        "Identifier": "O3115",
        "Context": "USDOI\USGS",
        "Name": "O-3115 ~ Purgeable Organic Compounds in Water",
        "Description": "O-3115 ~ USGS-NWQL . Purgeable Organic Compounds in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4772\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1578",
        "Identifier": "O3117",
        "Context": "USDOI\USGS",
        "Name": "Acid Extractable Compounds in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1579",
        "Identifier": "O3118",
        "Context": "USDOI\USGS",
        "Name": "Base\Neutral Extractable Compounds",
        "Description": "https:\\www.nemi.gov\methods\method_summary\8924\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1580",
        "Identifier": "O5101",
        "Context": "USDOI\USGS",
        "Name": "Total Carbon in Bottom Material",
        "Description": "https:\\www.nemi.gov\methods\method_summary\8980\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1581",
        "Identifier": "O5104",
        "Context": "USDOI\USGS",
        "Name": "O-5104 ~ Organochlorine and -phosphorous in Solid",
        "Description": "O-5104 ~ USGS-NWQL . Organochlorine and organophosphorous compounds, recoverable from bottom material",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5520\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1582",
        "Identifier": "O5105",
        "Context": "USDOI\USGS",
        "Name": "Chlorophenoxy Acids in Bottom Material",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1583",
        "Identifier": "O5108",
        "Context": "USDOI\USGS",
        "Name": "Extractable Oil and Grease",
        "Description": "O-5108 ~ USGS-NWQL . Oil and grease extractable from bottom material, gravimetric",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5515\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1584",
        "Identifier": "O7100",
        "Context": "USDOI\USGS",
        "Name": "Suspended Organic Carbon in Water",
        "Description": "https:\\www.nemi.gov\methods\method_summary\8916\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1585",
        "Identifier": "O7104",
        "Context": "USDOI\USGS",
        "Name": "O-7104 ~ Organochlorine and -phosphorous in Solid",
        "Description": "O-7104 ~ USGS-NWQL . Organochlorine and organophosphorous compounds, recoverable from bottom material",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5521\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1586",
        "Identifier": "O7105",
        "Context": "USDOI\USGS",
        "Name": "Chlorophenoxy Acids in Sediment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1587",
        "Identifier": "O9104",
        "Context": "USDOI\USGS",
        "Name": "Organochlorine Compounds in Fish Tissue",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2467",
        "Identifier": "OA-001-1",
        "Context": "USEPA",
        "Name": "Field Use of Sentex Scentograph GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2468",
        "Identifier": "OA-002-1",
        "Context": "USEPA",
        "Name": "VOCs by GC\MS of Cartridges\Cylinders",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2469",
        "Identifier": "OA-003-1",
        "Context": "USEPA",
        "Name": "Field Survey with PID Vapor Detector",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2470",
        "Identifier": "OA-004-1",
        "Context": "USEPA",
        "Name": "Field Use of Photovac Portable GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2471",
        "Identifier": "OA-005-1",
        "Context": "USEPA",
        "Name": "Field Use of Photovac Portable GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2472",
        "Identifier": "OA-006-1",
        "Context": "USEPA",
        "Name": "Photovac Portable GC for Soil\Water\Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5063",
        "Identifier": "OAQPS-101",
        "Context": "USEPA",
        "Name": "Mercury in Air Emissions by Atomic Absorption",
        "Description": "OAQPS-101 ~ EPA OAR\OAQPS\EMAEMC . Mercury in Air Emissions by Atomic Absorption",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7630\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5064",
        "Identifier": "OAQPS-12",
        "Context": "USEPA",
        "Name": "Lead in Air Emissions by Flame Atomic Absorption",
        "Description": "OAQPS-12 ~ EPA OAR\OAQPS\EMAEMC . Lead in Air Emissions by Flame Atomic Absorption",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7632\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5065",
        "Identifier": "OAQPS-18",
        "Context": "USEPA",
        "Name": "Gaseous Organic Compounds in Air Emissions by Gas Chromatography",
        "Description": "OAQPS-18 ~ EPA OAR\OAQPS\EMAEMC . Gaseous Organic Compounds in Air Emissions by Gas Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7629\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5066",
        "Identifier": "OAQPS-23",
        "Context": "USEPA",
        "Name": "Dioxins and Furans in Air Emission Combustor Wastes by HRGC-HRMS",
        "Description": "OAQPS-23 ~ EPA OAR\OAQPS\EMAEMC . Dioxins and Furans in Air Emission Combustor Wastes by HRGC-HRMS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7631\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5067",
        "Identifier": "OAQPS-26",
        "Context": "USEPA",
        "Name": "Hydrogen Halides in Air Emissions by Ion Chromatography",
        "Description": "OAQPS-26 ~ EPA OAR\OAQPS\EMAEMC . Hydrogen Halides in Air Emissions by Ion Chromatography",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7633\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4952",
        "Identifier": "OFR 02-150 ALGAE",
        "Context": "USDOI\USGS",
        "Name": "Algal community sampling by revised NAWQA protocols",
        "Description": "OFR 02-150 Algae ~ USGS NAWQA . Algal community sampling by revised NAWQA protocols",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9912\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4953",
        "Identifier": "OFR 02-150 FISH",
        "Context": "USDOI\USGS",
        "Name": "Fish community sampling by revised NAWQA protocol",
        "Description": "OFR 02-150 Fish ~ USGS NAWQA . Fish community sampling by revised NAWQA protocol",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9908\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4954",
        "Identifier": "OFR 02-150 INVERTS",
        "Context": "USDOI\USGS",
        "Name": "NAWQA Invertebrate Sampling Protocols",
        "Description": "OFR 02-150 Inverts ~ USGS NAWQA . NAWQA Invertebrate Sampling Protocols",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9312\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4955",
        "Identifier": "OFR_01-445",
        "Context": "USDOI\USGS",
        "Name": "Methyl Mercury in Water",
        "Description": "OFR_01-445 ~ USGS Mercury Lab, WI . Methyl Mercury in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\7279\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1186",
        "Identifier": "OG015R",
        "Context": "USDOE\ASD",
        "Name": "OG015R ~ Volatile Organics in Radioactive Liquids",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1187",
        "Identifier": "OG100R",
        "Context": "USDOE\ASD",
        "Name": "OG100R ~ PCBs in Solid Radioactive Wastes",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1188",
        "Identifier": "OH100R",
        "Context": "USDOE\ASD",
        "Name": "OH100R ~ TCLP Acidic Semivolatiles Using HPLC",
        "Description": "OH100R ~ DOE . TCLP Acidic Semivolatiles Using HPLC",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4773\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2473",
        "Identifier": "OHC",
        "Context": "USEPA",
        "Name": "Organics Analysis, Multi-Media, Hi-Conc",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5219",
        "Identifier": "OIA-1677",
        "Context": "O-I-ANALYTICAL",
        "Name": "OIA-1677 ~ Cyanide by Amperometry",
        "Description": "OIA-1677 ~ O-I-Analytical . Cyanide by Amperometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4836\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3157",
        "Identifier": "OIA-1677",
        "Context": "USEPA",
        "Name": "OIA-1677 ~ Available Cyanide by Flow Injection, Ligand Exchange, and Amperometry",
        "Description": "https:\\www.nemi.gov\methods\method_summary\4836\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2008-11-12T10:58:17 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5966",
        "Identifier": "OKGRL_LM04",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM04",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM04",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6004",
        "Identifier": "OKGRL_LM05",
        "Context": "USDA\ARS",
        "Name": "OKGRL_LM05",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM05",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5967",
        "Identifier": "OKGRL_LM120.1",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM120.1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM120.1",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6003",
        "Identifier": "OKGRL_LM150.1",
        "Context": "USDA\ARS",
        "Name": "OKGRL_LM150.1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM150.1",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5968",
        "Identifier": "OKGRL_LM215.1",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM215.1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM215.1",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:39 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5969",
        "Identifier": "OKGRL_LM242.1",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM242.1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM242.1",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:39 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5970",
        "Identifier": "OKGRL_LM258.1",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM258.1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM258.1",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:39 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5971",
        "Identifier": "OKGRL_LM273.1",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM273.1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM273.1",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:39 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5972",
        "Identifier": "OKGRL_LM350.1",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM350.1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM350.1",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:39 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5992",
        "Identifier": "OKGRL_LM351.2",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ11",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ11",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5973",
        "Identifier": "OKGRL_LM353.2",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM353.2",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM353.2",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:39 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6000",
        "Identifier": "OKGRL_LM365.1",
        "Context": "USDA\ARS",
        "Name": "OKGRL_LM365.1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM365.1",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6002",
        "Identifier": "OKGRL_LM365.2",
        "Context": "USDA\ARS",
        "Name": "OKGRL_LM365.2",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM365.2",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6001",
        "Identifier": "OKGRL_LM365.5",
        "Context": "USDA\ARS",
        "Name": "OKGRL_LM365.5",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LM365.5",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5974",
        "Identifier": "OKGRL_LMWQ1.1",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LMWQ1.1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LMWQ1.1",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:39 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5975",
        "Identifier": "OKGRL_LMWQ2",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LMWQ2",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=OKGRL_LMWQ2",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:39 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5258",
        "Identifier": "OLM4.2",
        "Context": "USEPA",
        "Name": "Organic Compounds in Water,sediment,soil by purge and trap Gas Chromatography\Mass Spectrometry (GC\MS) and (GC\EC)",
        "Description": "http:\\www.epa.gov\superfund\programs\clp\download\olm\olm42a-d.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-03-28T08:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4732",
        "Identifier": "OM100R",
        "Context": "USDOE\ASD",
        "Name": "OM100R ~ Semi-volatile Organic Compounds in Multi-media Samples by Capillary Column Ion Trap MS",
        "Description": "OM100R ~ DOE . Semi-volatile Organic Compounds in Multi-media Samples by Capillary Column Ion Trap MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4795\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1189",
        "Identifier": "OM500R",
        "Context": "USDOE\ASD",
        "Name": "OM500R ~ Organic Acids in Mixed Hazard Waste by LC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1190",
        "Identifier": "OM510R",
        "Context": "USDOE\ASD",
        "Name": "OM510R ~ Chelators in Mixed Hazardous Waste by GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1191",
        "Identifier": "OP010R",
        "Context": "USDOE\ASD",
        "Name": "OP010R ~ VOAs in High-Level Radioactive Wastes",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1192",
        "Identifier": "OP020R",
        "Context": "USDOE\ASD",
        "Name": "OP020R ~ VOA in Solid RMW by Ultrasonic Extract",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1193",
        "Identifier": "OP040R",
        "Context": "USDOE\ASD",
        "Name": "OP040R ~ ZHE Extraction for TCLP Volatiles",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1194",
        "Identifier": "OP100R",
        "Context": "USDOE\ASD",
        "Name": "OP100R ~ PCBs in Radioactive Wastes Using GC-ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1195",
        "Identifier": "OP130R",
        "Context": "USDOE\ASD",
        "Name": "OP130R ~ TCLP for Semivolatiles and Pesticides",
        "Description": "OP130R ~ DOE . TCLP for Semivolatiles and Pesticides",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4774\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5221",
        "Identifier": "ORNL-01",
        "Context": "ORNL",
        "Name": "Toxins in Water by Chlorophyll Fluorescence",
        "Description": "ORNL-01 ~ ORNL . Toxins in Water by Chlorophyll Fluorescence",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9263\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1196",
        "Identifier": "OS010",
        "Context": "USDOE\ASD",
        "Name": "Total Organic Chlorine in Oil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1197",
        "Identifier": "OS030",
        "Context": "USDOE\ASD",
        "Name": "Chlorinated VOCs in Water and Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1198",
        "Identifier": "OS040(S)",
        "Context": "USDOE\ASD",
        "Name": "OS040 S  ~ Volatile Organics in Soil",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1199",
        "Identifier": "OS040(W)",
        "Context": "USDOE\ASD",
        "Name": "OS040 W  ~ Volatile Organics in Water",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2474",
        "Identifier": "OSW-A",
        "Context": "USEPA",
        "Name": "Metals in Incinerator Exhausts",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2475",
        "Identifier": "OSW-B",
        "Context": "USEPA",
        "Name": "Hexavalent Chromium in Stack Emissions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6165",
        "Identifier": "OTSD",
        "Context": "USDOI\USGS",
        "Name": "POLONIUM-210,BS,ALPHA (EBERLINE)",
        "Description": "Polonium-210, bed sediment, by alpha apectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6166",
        "Identifier": "OX006",
        "Context": "USDOI\USGS",
        "Name": "POLONIUM-210,SS,ALPHA (EBERLINE)",
        "Description": "Polonium-210, suspended sediment, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6167",
        "Identifier": "OX008",
        "Context": "USDOI\USGS",
        "Name": "POLONIUM-210,WF,ALPHA (EBERLINE)",
        "Description": "Polonium-210, water, filtered, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2476",
        "Identifier": "P-001-1",
        "Context": "USEPA",
        "Name": "Chlorinated Pesticides in Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2477",
        "Identifier": "P-002-1",
        "Context": "USEPA",
        "Name": "Field Screen for Chlorinated Pesticides",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2478",
        "Identifier": "P-003-1",
        "Context": "USEPA",
        "Name": "Chlorinated Pesticides in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2479",
        "Identifier": "P-004-1",
        "Context": "USEPA",
        "Name": "Field Screen for Chlorinated Pesticides",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2480",
        "Identifier": "P-005-1",
        "Context": "USEPA",
        "Name": "Organophosphorus Pesticides in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2481",
        "Identifier": "P-006-1",
        "Context": "USEPA",
        "Name": "Organophosphorus Pesticides in Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2482",
        "Identifier": "P-007-1",
        "Context": "USEPA",
        "Name": "Phenoxyherbicides in Soil\Sediment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2483",
        "Identifier": "P-008-1",
        "Context": "USEPA",
        "Name": "Phenoxyherbicides in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2484",
        "Identifier": "P-009-1",
        "Context": "USEPA",
        "Name": "CLP Pesticide\PCB in Water\Soil by GC\EC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2485",
        "Identifier": "P-01",
        "Context": "USEPA",
        "Name": "Phosphorus-32 in Fish Muscle",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2486",
        "Identifier": "P-011-1",
        "Context": "USEPA",
        "Name": "Chlorinated Pesticides in Soil by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2487",
        "Identifier": "P-02",
        "Context": "USEPA",
        "Name": "Stable Phosphorous in Biological Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2488",
        "Identifier": "PAH-001(S)",
        "Context": "USEPA",
        "Name": "PAH-001 S  ~ Field Analysis of PAHs by GC\FID",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2489",
        "Identifier": "PAH-001(W)",
        "Context": "USEPA",
        "Name": "PAH-001 W  ~ Field Analysis of PAHs by GC\FID",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2490",
        "Identifier": "PAH-002",
        "Context": "USEPA",
        "Name": "PAHs in Water by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2491",
        "Identifier": "PAH-005",
        "Context": "USEPA",
        "Name": "Polycyclic Aromatic Hydrocarbons in Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2492",
        "Identifier": "PAH-006",
        "Context": "USEPA",
        "Name": "Polycyclic Aromatic Hydrocarbons in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2493",
        "Identifier": "PAH-008",
        "Context": "USEPA",
        "Name": "Total PAHs in Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2494",
        "Identifier": "PAH-009",
        "Context": "USEPA",
        "Name": "Analysis of PAHs by GC\FID and GC\PID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2495",
        "Identifier": "PAH-011",
        "Context": "USEPA",
        "Name": "Analysis of PAHs in Soil by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2496",
        "Identifier": "PAH-012",
        "Context": "USEPA",
        "Name": "Analysis of PAHs in Soil by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1649",
        "Identifier": "PAI-DK01",
        "Context": "USEPA",
        "Name": "Total Kjeldahl Nitrogen by Block Digestion & Titrimetric Detection",
        "Description": "Automated block digestion, steam distillation, and titrimetric detection method for determining TKN in water.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-07-12T14:15:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5535",
        "Identifier": "PAI-DK01",
        "Context": "O-I-ANALYTICAL",
        "Name": "Nitrogen, Total Kjeldahl, Block Digestion, Steam Distillation, Titrimetric Detection",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-03-02T13:05:46 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5222",
        "Identifier": "PALINTEST CHLOROSENS",
        "Context": "PALINTEST LTD",
        "Name": "Chlorine, free and total, in drinking water by Amperometry",
        "Description": "Palintest ChloroSense ~ PALINTEST LTD . Chlorine, free and total, in drinking water by Amperometry",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10616\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2497",
        "Identifier": "PART_1",
        "Context": "USEPA",
        "Name": "Trihalomethanes in Water by Purge and Trap",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2498",
        "Identifier": "PART_2",
        "Context": "USEPA",
        "Name": "Trihalomethanes in Drinking Water by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2499",
        "Identifier": "PART_3",
        "Context": "USEPA",
        "Name": "Maximum Total Trihalomethane Potential",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2500",
        "Identifier": "PB-01",
        "Context": "USEPA",
        "Name": "Lead-210 in Water and Solid Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1247",
        "Identifier": "PB-01(A)",
        "Context": "USDOE\EML",
        "Name": "PB-01 A  ~ Lead-210 in Air filters",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1248",
        "Identifier": "PB-01(B)",
        "Context": "USDOE\EML",
        "Name": "PB-01 B  ~ Lead-210 in Bone",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1249",
        "Identifier": "PB-01(F)",
        "Context": "USDOE\EML",
        "Name": "PB-01 F  ~ Lead-210 in Food",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1250",
        "Identifier": "PB-01(W)",
        "Context": "USDOE\EML",
        "Name": "PB-01 W  ~ Lead-210 in Water",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4736",
        "Identifier": "PB-01-RC",
        "Context": "USDOE\EML",
        "Name": "PB-01-RC ~ PB-01 RC ~ Lead-210 in Bone, Food, Urine, Feces, Blood, Air, and Water",
        "Description": "Pb-01-RC ~ DOE EML . Lead-210 in Bone, Food, Urine, Feces, Blood, Air, and Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4844\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2501",
        "Identifier": "PCB-002",
        "Context": "USEPA",
        "Name": "Field Screening of PCBs in Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2502",
        "Identifier": "PCB-003",
        "Context": "USEPA",
        "Name": "PCBs in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2503",
        "Identifier": "PCB-004",
        "Context": "USEPA",
        "Name": "Screening for PCBs in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2504",
        "Identifier": "PCB-005",
        "Context": "USEPA",
        "Name": "PCBs and Pesticide in Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2505",
        "Identifier": "PCB-006",
        "Context": "USEPA",
        "Name": "PCBs in Soil as Decachlorobiphenyl by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2506",
        "Identifier": "PCB-008",
        "Context": "USEPA",
        "Name": "Field Analysis of PCBs in Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2507",
        "Identifier": "PCB-009",
        "Context": "USEPA",
        "Name": "PCBs in Soil and Oil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "871157",
        "Identifier": "PFAS ID36",
        "Context": "TDH LAB",
        "Name": "PFAS ID36",
        "Description": "Pace proprietary method: PFAS by Isotope Dilution",
        "QualifierType": "",
        "URL": "https:\\pfas.com\pfas-testing\pace-proprietary-test-methods\",
        "LastChangeDate": "2022-06-03T12:02:04 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6262",
        "Identifier": "PHM01",
        "Context": "USDOI\USGS",
        "Name": "Colorimetry, phosphomolybdate, DA",
        "Description": "Used to determine the concentration of dissolved orthophosphate (as phosphorus) in water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-04-17T20:27:30 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1171",
        "Identifier": "PHOS-1",
        "Context": "USDOC\NOAA",
        "Name": "Phosphorus - Colorimetric, Automated",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1172",
        "Identifier": "PHOS-2",
        "Context": "USDOC\NOAA",
        "Name": "Phosphorus - Ascorbic Acid",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1173",
        "Identifier": "PHOS-3",
        "Context": "USDOC\NOAA",
        "Name": "Phosphorus - AutoAnalyzer",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1174",
        "Identifier": "PHOS-4",
        "Context": "USDOC\NOAA",
        "Name": "Phosphorus - Colorimetric",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1175",
        "Identifier": "PHOS-5",
        "Context": "USDOC\NOAA",
        "Name": "Phosphorus - AutoAnalyzer",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6168",
        "Identifier": "PLA11",
        "Context": "USDOI\USGS",
        "Name": "POLONIUM-210, WU, ALPHA SPEC",
        "Description": "Polonium-210, water, unfiltered, pCi\L, pCi\L,, by alpha spectrometry",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6169",
        "Identifier": "PLA13",
        "Context": "USDOI\USGS",
        "Name": "RADIUM-224, WF, ALPHA SPEC (STL)",
        "Description": "Radium-224, water, filtered, @ 1.0 pCi\L, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6170",
        "Identifier": "PLA14",
        "Context": "USDOI\USGS",
        "Name": "RADIUM-224, BED SED, ALPHA SPEC",
        "Description": "Radium-224, bed sediment, pCi\g, by alpha spectrometry",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6171",
        "Identifier": "PLA15",
        "Context": "USDOI\USGS",
        "Name": "RADIUM-224, SUS SED, ALPHA SPEC",
        "Description": "Radium-224, suspended sediment, pCi\g, by alpha spectrometry",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6172",
        "Identifier": "PLM10",
        "Context": "USDOI\USGS",
        "Name": "RADIUM-224, WF, ALPHA (EBERLINE)",
        "Description": "Radium-224, water, filtered, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:54 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6173",
        "Identifier": "PLM11",
        "Context": "USDOI\USGS",
        "Name": "RADIUM-224, WU, ALPHA SPEC",
        "Description": "Radium-224, water, unfiltered, pCi\L, by alpha spectrometry",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:54 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6174",
        "Identifier": "PLM13",
        "Context": "USDOI\USGS",
        "Name": "RADIUM-226, WF, ALPHA SPEC",
        "Description": "Radium-226, Water, Filtered, @ 1.0 pCi\L, by Alpha Spectrometry",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:54 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6175",
        "Identifier": "PLM40",
        "Context": "USDOI\USGS",
        "Name": "RADIUM-226, BED, BY ALPHA SPEC",
        "Description": "Radium-226, bed sediment, pCi\g, by alpha spectrometry",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:54 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6176",
        "Identifier": "PLM43",
        "Context": "USDOI\USGS",
        "Name": "RADIUM-226, WF, BY ALPHA SPEC",
        "Description": "Radium-226, water, filtered, pCi\L, by alpha spectrometry",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:54 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6177",
        "Identifier": "PLM46",
        "Context": "USDOI\USGS",
        "Name": "RADIUM-226, WU, BY ALPHA SPEC",
        "Description": "Radium-226, water, unfiltered, pCi\L, by alpha spectrometry",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:54 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6178",
        "Identifier": "PLM47",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-228, BED, ALPHA (STL)",
        "Description": "Thorium-228, bed sediment, @ 0.1 pCi\g, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:54 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6179",
        "Identifier": "PLM48",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-228, WF,ALPHA SPEC (STL)",
        "Description": "Thorium-228, water, filtered, @ 1.0 pCi\L, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:54 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6263",
        "Identifier": "PLM77",
        "Context": "USDOI\USGS",
        "Name": "Arsenic, UNF, cICP-MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-04-17T20:27:30 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6264",
        "Identifier": "PLM78",
        "Context": "USDOI\USGS",
        "Name": "Aluminum, UNF, ICP-MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-04-17T20:27:30 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6180",
        "Identifier": "PLO01",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-228, WF, ALPHA (NWQL)",
        "Description": "Thorium-228, water, filtered, by alpha spectrometry (analysis by NWQL)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:54 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6181",
        "Identifier": "PLO03",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-228, WU,ALPHA SPEC (STL)",
        "Description": "Thorium-228, water, unfiltered @ 0.4 pCi\L, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:54 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6265",
        "Identifier": "PLO07",
        "Context": "USDOI\USGS",
        "Name": "Barium, UNF, ICP-OES",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-04-17T20:27:30 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2508",
        "Identifier": "PM-01",
        "Context": "USEPA",
        "Name": "Promethium-147 in Aqueous and Urine Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2509",
        "Identifier": "PM-02",
        "Context": "USEPA",
        "Name": "Promethium-147 in Feces Ash",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2510",
        "Identifier": "PMD-ACA",
        "Context": "USEPA",
        "Name": "PMD ACA ~ Acifluorfen by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2511",
        "Identifier": "PMD-ACG(GC)",
        "Context": "USEPA",
        "Name": "PMD ACG GC  ~ Acephate, Dicofol and Triforine by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2512",
        "Identifier": "PMD-ACG(LC1)",
        "Context": "USEPA",
        "Name": "PMD ACG LC1  ~ Dicofol by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2513",
        "Identifier": "PMD-ACG(LC2)",
        "Context": "USEPA",
        "Name": "PMD ACG LC2  ~ Triforine by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2514",
        "Identifier": "PMD-AKY(GC1)",
        "Context": "USEPA",
        "Name": "PMD AKY GC1  ~ Alachlor by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2515",
        "Identifier": "PMD-AKY(GC2)",
        "Context": "USEPA",
        "Name": "PMD AKY GC2  ~ Alachlor by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2517",
        "Identifier": "PMD-AM-S",
        "Context": "USEPA",
        "Name": "PMD AM S ~ AMS by Sodium Nitrate Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2516",
        "Identifier": "PMD-AMN",
        "Context": "USEPA",
        "Name": "PMD AMN ~ 4-Aminopyridine by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2518",
        "Identifier": "PMD-AMT",
        "Context": "USEPA",
        "Name": "PMD AMT ~ Amitrole by Visible Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2519",
        "Identifier": "PMD-ANF(GC)",
        "Context": "USEPA",
        "Name": "PMD ANF GC  ~ Anilazine by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2520",
        "Identifier": "PMD-ANF(IR)",
        "Context": "USEPA",
        "Name": "PMD ANF IR  ~ Anilazine by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2521",
        "Identifier": "PMD-ANT",
        "Context": "USEPA",
        "Name": "PMD ANT ~ Antimycin A by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2522",
        "Identifier": "PMD-ANY",
        "Context": "USEPA",
        "Name": "PMD ANY ~ ANTU by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2523",
        "Identifier": "PMD-AS(ATE)",
        "Context": "USEPA",
        "Name": "PMD AS ATE  ~ Arsenate by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2524",
        "Identifier": "PMD-AS(ITE)",
        "Context": "USEPA",
        "Name": "PMD AS ITE  ~ Sodium Arsenite by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2525",
        "Identifier": "PMD-AS(TIT1)",
        "Context": "USEPA",
        "Name": "PMD AS TIT1  ~ Total Arsenic by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2526",
        "Identifier": "PMD-AS(TIT2)",
        "Context": "USEPA",
        "Name": "PMD AS TIT2  ~ Total Arsenic by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2527",
        "Identifier": "PMD-AS(TIT3)",
        "Context": "USEPA",
        "Name": "PMD AS TIT3  ~ Inorganic Arsenic Compounds by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2528",
        "Identifier": "PMD-AS(TIT4)",
        "Context": "USEPA",
        "Name": "PMD AS TIT4  ~ Organic Arsenic by Digestion and Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2529",
        "Identifier": "PMD-AS(TIT5)",
        "Context": "USEPA",
        "Name": "PMD AS TIT5  ~ Arsenic in Organic Compounds by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2530",
        "Identifier": "PMD-ASU",
        "Context": "USEPA",
        "Name": "PMD ASU ~ Asulam by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2531",
        "Identifier": "PMD-ATR",
        "Context": "USEPA",
        "Name": "PMD ATR ~ Atrazine and Metolachlor by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2532",
        "Identifier": "PMD-ATR(GC1)",
        "Context": "USEPA",
        "Name": "PMD ATR GC1  ~ Atrazine by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2533",
        "Identifier": "PMD-ATR(GC2)",
        "Context": "USEPA",
        "Name": "PMD ATR GC2  ~ Atrazine and Metolachlor by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2534",
        "Identifier": "PMD-ATR(IR)",
        "Context": "USEPA",
        "Name": "PMD ATR IR  ~ Atrazine by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2535",
        "Identifier": "PMD-ATR(LC)",
        "Context": "USEPA",
        "Name": "PMD ATR LC  ~ Atrazine by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2536",
        "Identifier": "PMD-AZN",
        "Context": "USEPA",
        "Name": "PMD AZN ~ Azinphos-Methyl by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2537",
        "Identifier": "PMD-BDX",
        "Context": "USEPA",
        "Name": "PMD BDX ~ Benalaxyl by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2538",
        "Identifier": "PMD-BEB(IR)",
        "Context": "USEPA",
        "Name": "PMD BEB IR  ~ Bendiocarb by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2539",
        "Identifier": "PMD-BEB(LC)",
        "Context": "USEPA",
        "Name": "PMD BEB LC  ~ Bendiocarb by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2540",
        "Identifier": "PMD-BEB(UV)",
        "Context": "USEPA",
        "Name": "PMD BEB UV  ~ Bendiocarb by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2541",
        "Identifier": "PMD-BEE(GC)",
        "Context": "USEPA",
        "Name": "PMD BEE GC  ~ Benefin by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2542",
        "Identifier": "PMD-BEE(IR)",
        "Context": "USEPA",
        "Name": "PMD BEE IR  ~ Benefin by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2543",
        "Identifier": "PMD-BEH(IR)",
        "Context": "USEPA",
        "Name": "PMD BEH IR  ~ Benomyl by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2544",
        "Identifier": "PMD-BEH(UV)",
        "Context": "USEPA",
        "Name": "PMD BEH UV  ~ Benomyl by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2545",
        "Identifier": "PMD-BEL(IR)",
        "Context": "USEPA",
        "Name": "PMD BEL IR  ~ Bensulide by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2546",
        "Identifier": "PMD-BEL(LC)",
        "Context": "USEPA",
        "Name": "PMD BEL LC  ~ Bensulide by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2547",
        "Identifier": "PMD-BEN(LC)",
        "Context": "USEPA",
        "Name": "PMD BEN LC  ~ Bentazon by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2548",
        "Identifier": "PMD-BEN(UV)",
        "Context": "USEPA",
        "Name": "PMD BEN UV  ~ Bentazon by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2549",
        "Identifier": "PMD-BEO",
        "Context": "USEPA",
        "Name": "PMD BEO ~ Thiobencarb by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2550",
        "Identifier": "PMD-BIL",
        "Context": "USEPA",
        "Name": "PMD BIL ~ Bitertanol by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2551",
        "Identifier": "PMD-BIN",
        "Context": "USEPA",
        "Name": "PMD BIN ~ Binapacryl by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2552",
        "Identifier": "PMD-BOR",
        "Context": "USEPA",
        "Name": "PMD BOR ~ Boron Compounds by Ignition and Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2553",
        "Identifier": "PMD-BRA",
        "Context": "USEPA",
        "Name": "PMD BRA ~ Bromadiolone by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2554",
        "Identifier": "PMD-BRO",
        "Context": "USEPA",
        "Name": "PMD BRO ~ Bromacil by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2555",
        "Identifier": "PMD-BYA(GC1)",
        "Context": "USEPA",
        "Name": "PMD BYA GC1  ~ Butylate by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2556",
        "Identifier": "PMD-BYA(GC2)",
        "Context": "USEPA",
        "Name": "PMD BYA GC2  ~ Butylate by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2557",
        "Identifier": "PMD-BYA(LC1)",
        "Context": "USEPA",
        "Name": "PMD BYA LC1  ~ Butylate by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2558",
        "Identifier": "PMD-BYA(LC2)",
        "Context": "USEPA",
        "Name": "PMD BYA LC2  ~ Butylate by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2559",
        "Identifier": "PMD-CAO",
        "Context": "USEPA",
        "Name": "PMD CAO ~ Captafol by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2560",
        "Identifier": "PMD-CAP(GC1)",
        "Context": "USEPA",
        "Name": "PMD CAP GC1  ~ Captan by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2561",
        "Identifier": "PMD-CAP(GC2)",
        "Context": "USEPA",
        "Name": "PMD CAP GC2  ~ Captan, Carbaryl and Naled by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2562",
        "Identifier": "PMD-CAP(IR)",
        "Context": "USEPA",
        "Name": "PMD CAP IR  ~ Captan by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2563",
        "Identifier": "PMD-CAP(LC)",
        "Context": "USEPA",
        "Name": "PMD CAP LC  ~ Captan by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2564",
        "Identifier": "PMD-CAV(LC)",
        "Context": "USEPA",
        "Name": "PMD CAV LC  ~ Carbaryl by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2565",
        "Identifier": "PMD-CAV(UV)",
        "Context": "USEPA",
        "Name": "PMD CAV UV  ~ Carbaryl by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2566",
        "Identifier": "PMD-CBF",
        "Context": "USEPA",
        "Name": "PMD CBF ~ Carbofuran by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2567",
        "Identifier": "PMD-CBX(IR)",
        "Context": "USEPA",
        "Name": "PMD CBX IR  ~ Carboxin by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2568",
        "Identifier": "PMD-CBX(UV)",
        "Context": "USEPA",
        "Name": "PMD CBX UV  ~ Carboxin by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2569",
        "Identifier": "PMD-CD",
        "Context": "USEPA",
        "Name": "PMD CD ~ Cadmium by AAS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2570",
        "Identifier": "PMD-CGV",
        "Context": "USEPA",
        "Name": "PMD CGV ~ Chlorbromuron by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2571",
        "Identifier": "PMD-CHP",
        "Context": "USEPA",
        "Name": "PMD CHP ~ Chlorflurecol-Methyl Ester by UV Spec.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2572",
        "Identifier": "PMD-CIB",
        "Context": "USEPA",
        "Name": "PMD CIB ~ Chlorobenzilate by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2573",
        "Identifier": "PMD-CJL",
        "Context": "USEPA",
        "Name": "PMD CJL ~ Chloroneb by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2574",
        "Identifier": "PMD-CJO(LC)",
        "Context": "USEPA",
        "Name": "PMD CJO LC  ~ Chlorophacinone by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2575",
        "Identifier": "PMD-CJO(UV1)",
        "Context": "USEPA",
        "Name": "PMD CJO UV1  ~ Chlorophacinone by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2576",
        "Identifier": "PMD-CJO(UV2)",
        "Context": "USEPA",
        "Name": "PMD CJO UV2  ~ Chlorophacinone by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2577",
        "Identifier": "PMD-CKA",
        "Context": "USEPA",
        "Name": "PMD CKA ~ Chloropicrin and 1,3-DCPs by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2578",
        "Identifier": "PMD-CKL(GC)",
        "Context": "USEPA",
        "Name": "PMD CKL GC  ~ Chlorothalonil by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2579",
        "Identifier": "PMD-CKL(IR)",
        "Context": "USEPA",
        "Name": "PMD CKL IR  ~ Chlorothalonil by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2580",
        "Identifier": "PMD-CKR(GC)",
        "Context": "USEPA",
        "Name": "PMD CKR GC  ~ Chloroxuron by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2581",
        "Identifier": "PMD-CKR(IR)",
        "Context": "USEPA",
        "Name": "PMD CKR IR  ~ Chloroxuron in Dust by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2582",
        "Identifier": "PMD-CLD(GC)",
        "Context": "USEPA",
        "Name": "PMD CLD GC  ~ Chlorpyrifos by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2583",
        "Identifier": "PMD-CLD(IR)",
        "Context": "USEPA",
        "Name": "PMD CLD IR  ~ Chlorpyrifos by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2584",
        "Identifier": "PMD-CLD(UV)",
        "Context": "USEPA",
        "Name": "PMD CLD UV  ~ Chlorpyrifos by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2585",
        "Identifier": "PMD-CLV",
        "Context": "USEPA",
        "Name": "PMD CLV ~ Chlorsulfuron by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2586",
        "Identifier": "PMD-CMN",
        "Context": "USEPA",
        "Name": "PMD CMN ~ Cinmethalin by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2587",
        "Identifier": "PMD-COQ",
        "Context": "USEPA",
        "Name": "PMD COQ ~ Coumafuryl by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2588",
        "Identifier": "PMD-COR(GC)",
        "Context": "USEPA",
        "Name": "PMD COR GC  ~ Coumaphos by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2589",
        "Identifier": "PMD-COR(IR)",
        "Context": "USEPA",
        "Name": "PMD COR IR  ~ Coumaphos by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2590",
        "Identifier": "PMD-COR(LC)",
        "Context": "USEPA",
        "Name": "PMD COR LC  ~ Coumaphos by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2591",
        "Identifier": "PMD-CPH",
        "Context": "USEPA",
        "Name": "PMD CPH ~ Chlorophenoxy Herbicide Technical Data",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2592",
        "Identifier": "PMD-CRO",
        "Context": "USEPA",
        "Name": "PMD CRO ~ Crotoxyphos by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2594",
        "Identifier": "PMD-CU-S",
        "Context": "USEPA",
        "Name": "PMD CU S ~ Cupric Ion by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2593",
        "Identifier": "PMD-CUC",
        "Context": "USEPA",
        "Name": "PMD CUC ~ Cyanazine by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2595",
        "Identifier": "PMD-CYZ(GC1)",
        "Context": "USEPA",
        "Name": "PMD CYZ GC1  ~ Cyromazine in Trigard 75W by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2596",
        "Identifier": "PMD-CYZ(GC2)",
        "Context": "USEPA",
        "Name": "PMD CYZ GC2  ~ Cyromazine in Armor by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2597",
        "Identifier": "PMD-CYZ(GC3)",
        "Context": "USEPA",
        "Name": "PMD CYZ GC3  ~ Cyromazine in Armor Premix by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2598",
        "Identifier": "PMD-DAL",
        "Context": "USEPA",
        "Name": "PMD DAL ~ Dalapon by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2599",
        "Identifier": "PMD-DCA(GC1)",
        "Context": "USEPA",
        "Name": "PMD DCA GC1  ~ 2,4-D and 2,4,5-T Esters by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2600",
        "Identifier": "PMD-DCA(GC2)",
        "Context": "USEPA",
        "Name": "PMD DCA GC2  ~ 2,4-D and Silvex by Derivatization GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2601",
        "Identifier": "PMD-DEE(GC)",
        "Context": "USEPA",
        "Name": "PMD DEE GC  ~ DEET by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2602",
        "Identifier": "PMD-DEE(LC)",
        "Context": "USEPA",
        "Name": "PMD DEE LC  ~ DEET by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2603",
        "Identifier": "PMD-DFN",
        "Context": "USEPA",
        "Name": "PMD DFN ~ Diazinon by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2604",
        "Identifier": "PMD-DGL",
        "Context": "USEPA",
        "Name": "PMD DGL ~ Dibutyl Succinate by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2605",
        "Identifier": "PMD-DGV",
        "Context": "USEPA",
        "Name": "PMD DGV ~ Dichlone by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2606",
        "Identifier": "PMD-DIC",
        "Context": "USEPA",
        "Name": "PMD DIC ~ DICA by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2607",
        "Identifier": "PMD-DJA",
        "Context": "USEPA",
        "Name": "PMD DJA ~ Dichloran in Dusts by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2608",
        "Identifier": "PMD-DJG",
        "Context": "USEPA",
        "Name": "PMD DJG ~ Dicrotophos by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2609",
        "Identifier": "PMD-DME",
        "Context": "USEPA",
        "Name": "PMD DME ~ Dimethoate by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2610",
        "Identifier": "PMD-DMF",
        "Context": "USEPA",
        "Name": "PMD DMF ~ Dioxins in 2,4-D and 2,4,5-T by GC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2611",
        "Identifier": "PMD-DNE",
        "Context": "USEPA",
        "Name": "PMD DNE ~ Dimethyl Phthalate by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2612",
        "Identifier": "PMD-DNR",
        "Context": "USEPA",
        "Name": "PMD DNR ~ Dinitramine by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2613",
        "Identifier": "PMD-DNZ(IR)",
        "Context": "USEPA",
        "Name": "PMD DNZ IR  ~ Dinocap by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2614",
        "Identifier": "PMD-DNZ(TITR)",
        "Context": "USEPA",
        "Name": "PMD DNZ TITR  ~ Dinocap by TKN and Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2615",
        "Identifier": "PMD-DOG",
        "Context": "USEPA",
        "Name": "PMD DOG ~ Dinoseb by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2616",
        "Identifier": "PMD-DOZ(LC1)",
        "Context": "USEPA",
        "Name": "PMD DOZ LC1  ~ Diphacinone by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2617",
        "Identifier": "PMD-DOZ(LC2)",
        "Context": "USEPA",
        "Name": "PMD DOZ LC2  ~ Diphacinone by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2618",
        "Identifier": "PMD-DOZ(UV)",
        "Context": "USEPA",
        "Name": "PMD DOZ UV  ~ Diphacinone in Baits by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2619",
        "Identifier": "PMD-DPA(GC)",
        "Context": "USEPA",
        "Name": "PMD DPA GC  ~ Diphenamid by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2620",
        "Identifier": "PMD-DPA(IR)",
        "Context": "USEPA",
        "Name": "PMD DPA IR  ~ Diphenamid by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2621",
        "Identifier": "PMD-DPF",
        "Context": "USEPA",
        "Name": "PMD DPF ~ Diphenylamine by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2622",
        "Identifier": "PMD-DQT",
        "Context": "USEPA",
        "Name": "PMD DQT ~ Diquat (Dibromide) by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2623",
        "Identifier": "PMD-DSN(GC)",
        "Context": "USEPA",
        "Name": "PMD DSN GC  ~ Disulfoton and Fensulfothion by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2624",
        "Identifier": "PMD-DSN(IR)",
        "Context": "USEPA",
        "Name": "PMD DSN IR  ~ Disulfoton by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2625",
        "Identifier": "PMD-DUR(IR)",
        "Context": "USEPA",
        "Name": "PMD DUR IR  ~ Diuron by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2626",
        "Identifier": "PMD-DUR(LC)",
        "Context": "USEPA",
        "Name": "PMD DUR LC  ~ Diuron by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2627",
        "Identifier": "PMD-EDF",
        "Context": "USEPA",
        "Name": "PMD EDF ~ Edifenphos by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2628",
        "Identifier": "PMD-ENA",
        "Context": "USEPA",
        "Name": "PMD ENA ~ Endosulfan by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2629",
        "Identifier": "PMD-ENB(GC)",
        "Context": "USEPA",
        "Name": "PMD ENB GC  ~ Endothall by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2630",
        "Identifier": "PMD-ENB(TITR)",
        "Context": "USEPA",
        "Name": "PMD ENB TITR  ~ Endothall by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2631",
        "Identifier": "PMD-EPI",
        "Context": "USEPA",
        "Name": "PMD EPI ~ Epichlorohydrin by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2632",
        "Identifier": "PMD-EPT",
        "Context": "USEPA",
        "Name": "PMD EPT ~ EPTC by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2633",
        "Identifier": "PMD-ETF",
        "Context": "USEPA",
        "Name": "PMD ETF ~ Ethofumesate by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2634",
        "Identifier": "PMD-ETI(GC)",
        "Context": "USEPA",
        "Name": "PMD ETI GC  ~ Ethion by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2635",
        "Identifier": "PMD-ETI(IR)",
        "Context": "USEPA",
        "Name": "PMD ETI IR  ~ Ethion by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2636",
        "Identifier": "PMD-ETN(GC)",
        "Context": "USEPA",
        "Name": "PMD ETN GC  ~ Ethoprop by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2637",
        "Identifier": "PMD-ETN(IR)",
        "Context": "USEPA",
        "Name": "PMD ETN IR  ~ Ethoprop by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2638",
        "Identifier": "PMD-EUX(GC)",
        "Context": "USEPA",
        "Name": "PMD EUX GC  ~ Ethyl Hexanediol by GC\TCD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2639",
        "Identifier": "PMD-EUX(TITR)",
        "Context": "USEPA",
        "Name": "PMD EUX TITR  ~ Ethyl Hexanediol by Acetylation & Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2640",
        "Identifier": "PMD-EZN",
        "Context": "USEPA",
        "Name": "PMD EZN ~ Ethiozin by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2641",
        "Identifier": "PMD-FBP",
        "Context": "USEPA",
        "Name": "PMD FBP ~ Fenamiphos by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2642",
        "Identifier": "PMD-FBR",
        "Context": "USEPA",
        "Name": "PMD FBR ~ Fenarimol by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2643",
        "Identifier": "PMD-FCL(GC)",
        "Context": "USEPA",
        "Name": "PMD FCL GC  ~ Ronnel by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2644",
        "Identifier": "PMD-FCL(IR)",
        "Context": "USEPA",
        "Name": "PMD FCL IR  ~ Ronnel by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2645",
        "Identifier": "PMD-FKN",
        "Context": "USEPA",
        "Name": "PMD FKN ~ Fluchloralin by GC\TCD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2646",
        "Identifier": "PMD-FLM",
        "Context": "USEPA",
        "Name": "PMD FLM ~ Atrazine and Metolachlor by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2647",
        "Identifier": "PMD-FLM(IR)",
        "Context": "USEPA",
        "Name": "PMD FLM IR  ~ Fluometuron by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2648",
        "Identifier": "PMD-FLM(UV)",
        "Context": "USEPA",
        "Name": "PMD FLM UV  ~ Fluometuron by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2649",
        "Identifier": "PMD-FOL",
        "Context": "USEPA",
        "Name": "PMD FOL ~ Folpet by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2650",
        "Identifier": "PMD-FON",
        "Context": "USEPA",
        "Name": "PMD FON ~ Fonofos by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2651",
        "Identifier": "PMD-GLP",
        "Context": "USEPA",
        "Name": "PMD GLP ~ Glyphosate by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2652",
        "Identifier": "PMD-HXE",
        "Context": "USEPA",
        "Name": "PMD HXE ~ Hexachlorophene by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2653",
        "Identifier": "PMD-HXO(GC)",
        "Context": "USEPA",
        "Name": "PMD HXO GC  ~ Hexazinone by GC\TCD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2654",
        "Identifier": "PMD-HXO(LC)",
        "Context": "USEPA",
        "Name": "PMD HXO LC  ~ Hexazinone by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2655",
        "Identifier": "PMD-INB",
        "Context": "USEPA",
        "Name": "PMD INB ~ Indolebutyric Acid by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2656",
        "Identifier": "PMD-KAR(IR)",
        "Context": "USEPA",
        "Name": "PMD KAR IR  ~ Karbutilate by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2657",
        "Identifier": "PMD-KAR(LC)",
        "Context": "USEPA",
        "Name": "PMD KAR LC  ~ Karbutilate by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2658",
        "Identifier": "PMD-LIN",
        "Context": "USEPA",
        "Name": "PMD LIN ~ Lindane by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2659",
        "Identifier": "PMD-LIU(IR)",
        "Context": "USEPA",
        "Name": "PMD LIU IR  ~ Linuron by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2660",
        "Identifier": "PMD-LIU(LC)",
        "Context": "USEPA",
        "Name": "PMD LIU LC  ~ Linuron by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2661",
        "Identifier": "PMD-LIU(UV)",
        "Context": "USEPA",
        "Name": "PMD LIU UV  ~ Linuron by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2662",
        "Identifier": "PMD-LMG",
        "Context": "USEPA",
        "Name": "PMD LMG ~ Lemongrass Oil by GC\TCD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2663",
        "Identifier": "PMD-LTF(LC1)",
        "Context": "USEPA",
        "Name": "PMD LTF LC1  ~ Lactofen by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2664",
        "Identifier": "PMD-LTF(LC2)",
        "Context": "USEPA",
        "Name": "PMD LTF LC2  ~ Lactofen by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2665",
        "Identifier": "PMD-MAL(IR)",
        "Context": "USEPA",
        "Name": "PMD MAL IR  ~ Malathion by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2666",
        "Identifier": "PMD-MAL(LC)",
        "Context": "USEPA",
        "Name": "PMD MAL LC  ~ Malathion by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2667",
        "Identifier": "PMD-MAU(GC1)",
        "Context": "USEPA",
        "Name": "PMD MAU GC1  ~ Ethylenethiourea by GC\TCD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2668",
        "Identifier": "PMD-MAU(GC2)",
        "Context": "USEPA",
        "Name": "PMD MAU GC2  ~ Ethylenethiourea by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2669",
        "Identifier": "PMD-MBL",
        "Context": "USEPA",
        "Name": "PMD MBL ~ Myclobutanil by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2670",
        "Identifier": "PMD-MBT(TITR)",
        "Context": "USEPA",
        "Name": "PMD MBT TITR  ~ 2-Mercaptobenzothiazole by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2671",
        "Identifier": "PMD-MBT(UV)",
        "Context": "USEPA",
        "Name": "PMD MBT UV  ~ 2-Mercaptobenzothiazole by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2672",
        "Identifier": "PMD-MDZ",
        "Context": "USEPA",
        "Name": "PMD MDZ ~ Merphos by Internal Standard GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2673",
        "Identifier": "PMD-MEA(GC)",
        "Context": "USEPA",
        "Name": "PMD MEA GC  ~ Metaldehyde by GC\TCD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2674",
        "Identifier": "PMD-MEA(IR)",
        "Context": "USEPA",
        "Name": "PMD MEA IR  ~ Metaldehyde by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2675",
        "Identifier": "PMD-MEL",
        "Context": "USEPA",
        "Name": "PMD MEL ~ Methidathion by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2676",
        "Identifier": "PMD-MEM",
        "Context": "USEPA",
        "Name": "PMD MEM ~ Methiocarb by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2677",
        "Identifier": "PMD-MER",
        "Context": "USEPA",
        "Name": "PMD MER ~ Methomyl by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2678",
        "Identifier": "PMD-MET",
        "Context": "USEPA",
        "Name": "PMD MET ~ Methoprene by Internal Standard GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2679",
        "Identifier": "PMD-MEY(GC)",
        "Context": "USEPA",
        "Name": "PMD MEY GC  ~ Methoxychlor by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2680",
        "Identifier": "PMD-MEY(IR)",
        "Context": "USEPA",
        "Name": "PMD MEY IR  ~ Methoxychlor by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2681",
        "Identifier": "PMD-MEY(LC)",
        "Context": "USEPA",
        "Name": "PMD MEY LC  ~ Methoxychlor by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2682",
        "Identifier": "PMD-MFX",
        "Context": "USEPA",
        "Name": "PMD MFX ~ Metalaxyl by Internal Standard GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2683",
        "Identifier": "PMD-MGC",
        "Context": "USEPA",
        "Name": "PMD MGC ~ Methyl Nonyl Ketone (MNK) by GC\TCD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2684",
        "Identifier": "PMD-MGU(GC)",
        "Context": "USEPA",
        "Name": "PMD MGU GC  ~ Metobromuron by GC\TCD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2685",
        "Identifier": "PMD-MGU(IR)",
        "Context": "USEPA",
        "Name": "PMD MGU IR  ~ Metobromuron by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2686",
        "Identifier": "PMD-MHX",
        "Context": "USEPA",
        "Name": "PMD MHX ~ Mexacarbate by GC\TCD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2687",
        "Identifier": "PMD-MHY(LC)",
        "Context": "USEPA",
        "Name": "PMD MHY LC  ~ Maleic Hydrazide (MH) by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2688",
        "Identifier": "PMD-MHY(UV)",
        "Context": "USEPA",
        "Name": "PMD MHY UV  ~ Maleic Hydrazide by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2689",
        "Identifier": "PMD-MOK(GC)",
        "Context": "USEPA",
        "Name": "PMD MOK GC  ~ Monocrotophos by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2690",
        "Identifier": "PMD-MOK(IR)",
        "Context": "USEPA",
        "Name": "PMD MOK IR  ~ Monocrotophos by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2691",
        "Identifier": "PMD-MON(IR)",
        "Context": "USEPA",
        "Name": "PMD MON IR  ~ Monuron by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2692",
        "Identifier": "PMD-MON(TITR)",
        "Context": "USEPA",
        "Name": "PMD MON TITR  ~ Monuron by Hydrolysis and Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2693",
        "Identifier": "PMD-MON(UV)",
        "Context": "USEPA",
        "Name": "PMD MON UV  ~ Monuron by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2694",
        "Identifier": "PMD-NA-D",
        "Context": "USEPA",
        "Name": "PMD NA D ~ Sodium Chlorate and Metaborate by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2695",
        "Identifier": "PMD-NA-H",
        "Context": "USEPA",
        "Name": "PMD NA H ~ Sodium Fluoride by Ion Chromatography",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2696",
        "Identifier": "PMD-NAP",
        "Context": "USEPA",
        "Name": "PMD NAP ~ Naphthaleneacetic Acid by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2697",
        "Identifier": "PMD-NBL",
        "Context": "USEPA",
        "Name": "PMD NBL ~ Naptalam by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2698",
        "Identifier": "PMD-NCS",
        "Context": "USEPA",
        "Name": "PMD NCS ~ Nicosulfuron by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2699",
        "Identifier": "PMD-NEB(IR)",
        "Context": "USEPA",
        "Name": "PMD NEB IR  ~ Neburon by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2700",
        "Identifier": "PMD-NEB(UV)",
        "Context": "USEPA",
        "Name": "PMD NEB UV  ~ Neburon by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2701",
        "Identifier": "PMD-NIC",
        "Context": "USEPA",
        "Name": "PMD NIC ~ Nicotine by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2702",
        "Identifier": "PMD-NOB",
        "Context": "USEPA",
        "Name": "PMD NOB ~ Norbormide by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2703",
        "Identifier": "PMD-NTP(TIT1)",
        "Context": "USEPA",
        "Name": "PMD NTP TIT1  ~ Nitrophenols by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2704",
        "Identifier": "PMD-NTP(TIT2)",
        "Context": "USEPA",
        "Name": "PMD NTP TIT2  ~ Nitrophenols by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2705",
        "Identifier": "PMD-ORY",
        "Context": "USEPA",
        "Name": "PMD ORY ~ Oryazlin by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2706",
        "Identifier": "PMD-OVO",
        "Context": "USEPA",
        "Name": "PMD OVO ~ Ovex by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2707",
        "Identifier": "PMD-OXB",
        "Context": "USEPA",
        "Name": "PMD OXB ~ Oxamyl by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2720",
        "Identifier": "PMD-P-HS",
        "Context": "USEPA",
        "Name": "PMD P HS ~ Phosphorus by Digestion and Gravimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2708",
        "Identifier": "PMD-PAD(GC)",
        "Context": "USEPA",
        "Name": "PMD PAD GC  ~ p-Dichlorobenzene by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2709",
        "Identifier": "PMD-PAD(IR)",
        "Context": "USEPA",
        "Name": "PMD PAD IR  ~ p-Dichlorobenzene by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2710",
        "Identifier": "PMD-PAP",
        "Context": "USEPA",
        "Name": "PMD PAP ~ Paraquat by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2711",
        "Identifier": "PMD-PAR(GC)",
        "Context": "USEPA",
        "Name": "PMD PAR GC  ~ Parathion in Carbaryl by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2712",
        "Identifier": "PMD-PAR(LC)",
        "Context": "USEPA",
        "Name": "PMD PAR LC  ~ Parathion by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2713",
        "Identifier": "PMD-PBS",
        "Context": "USEPA",
        "Name": "PMD PBS ~ Polybrominated Salicylanilides by UV",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2714",
        "Identifier": "PMD-PCP(GC)",
        "Context": "USEPA",
        "Name": "PMD PCP GC  ~ Pentachlorophenol by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2715",
        "Identifier": "PMD-PCP(LC)",
        "Context": "USEPA",
        "Name": "PMD PCP LC  ~ Pentachlorophenol by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2716",
        "Identifier": "PMD-PFH(GC)",
        "Context": "USEPA",
        "Name": "PMD PFH GC  ~ Phenols and Chlorophenols by GC\TCD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2717",
        "Identifier": "PMD-PFH(TD)",
        "Context": "USEPA",
        "Name": "PMD PFH TD  ~ Phenols and Chlorophenols Technical Data",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2718",
        "Identifier": "PMD-PFI",
        "Context": "USEPA",
        "Name": "PMD PFI ~ Phenothiazine by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2719",
        "Identifier": "PMD-PGM",
        "Context": "USEPA",
        "Name": "PMD PGM ~ Phorate by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2721",
        "Identifier": "PMD-PIE(LC)",
        "Context": "USEPA",
        "Name": "PMD PIE LC  ~ Pindone by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2722",
        "Identifier": "PMD-PIE(UV)",
        "Context": "USEPA",
        "Name": "PMD PIE UV  ~ Pindone by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2723",
        "Identifier": "PMD-PIO",
        "Context": "USEPA",
        "Name": "PMD PIO ~ Piperonyl Butoxide Qualitative Test",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2724",
        "Identifier": "PMD-PIX",
        "Context": "USEPA",
        "Name": "PMD PIX ~ Pendimethalin by GC\TCD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2725",
        "Identifier": "PMD-PJB",
        "Context": "USEPA",
        "Name": "PMD PJB ~ Pirimicarb by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2726",
        "Identifier": "PMD-PJE(GC)",
        "Context": "USEPA",
        "Name": "PMD PJE GC  ~ Pirimiphos-Ethyl by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2727",
        "Identifier": "PMD-PJM",
        "Context": "USEPA",
        "Name": "PMD PJM ~ Pirimiphos-Methyl by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2728",
        "Identifier": "PMD-PNM(GC)",
        "Context": "USEPA",
        "Name": "PMD PNM GC  ~ Prochloraz by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2729",
        "Identifier": "PMD-PNM(LC)",
        "Context": "USEPA",
        "Name": "PMD PNM LC  ~ Prochloraz by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2730",
        "Identifier": "PMD-POD",
        "Context": "USEPA",
        "Name": "PMD POD ~ Prometon and Simazine by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2731",
        "Identifier": "PMD-POJ",
        "Context": "USEPA",
        "Name": "PMD POJ ~ Propylene Glycol by GC\TCD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2732",
        "Identifier": "PMD-POT(GC)",
        "Context": "USEPA",
        "Name": "PMD POT GC  ~ Propargite by GC\TCD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2733",
        "Identifier": "PMD-POT(IR)",
        "Context": "USEPA",
        "Name": "PMD POT IR  ~ Propargite by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2734",
        "Identifier": "PMD-PPD",
        "Context": "USEPA",
        "Name": "PMD PPD ~ Propionic Acid by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2735",
        "Identifier": "PMD-PYA(IR)",
        "Context": "USEPA",
        "Name": "PMD PYA IR  ~ Pyrazon by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2736",
        "Identifier": "PMD-PYA(UV)",
        "Context": "USEPA",
        "Name": "PMD PYA UV  ~ Pyrazon by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2737",
        "Identifier": "PMD-PYR(GC1)",
        "Context": "USEPA",
        "Name": "PMD PYR GC1  ~ Pyrethrins by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2738",
        "Identifier": "PMD-PYR(GC2)",
        "Context": "USEPA",
        "Name": "PMD PYR GC2  ~ Pyrethrins, MGK-264 and PBTO by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2739",
        "Identifier": "PMD-PYR(LC1)",
        "Context": "USEPA",
        "Name": "PMD PYR LC1  ~ Pyrethrins by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2740",
        "Identifier": "PMD-PYR(LC2)",
        "Context": "USEPA",
        "Name": "PMD PYR LC2  ~ Pyrethrins, MGK-264 and PBTO by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2741",
        "Identifier": "PMD-PYR(TD)",
        "Context": "USEPA",
        "Name": "PMD PYR TD  ~ Pyrethrins, Technical Data",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2742",
        "Identifier": "PMD-PYR(TITR)",
        "Context": "USEPA",
        "Name": "PMD PYR TITR  ~ Pyrethrins I and II by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2743",
        "Identifier": "PMD-QAC(COLR)",
        "Context": "USEPA",
        "Name": "PMD QAC COLR  ~ Quaternary Ammonium Compounds Qualitative",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2744",
        "Identifier": "PMD-QAC(TD)",
        "Context": "USEPA",
        "Name": "PMD QAC TD  ~ Quaternary Ammonium Compound Technical Data",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2745",
        "Identifier": "PMD-QAC(TIT1)",
        "Context": "USEPA",
        "Name": "PMD QAC TIT1  ~ Quaternary Ammonium Compounds Ferricyanide",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2746",
        "Identifier": "PMD-QAC(TIT2)",
        "Context": "USEPA",
        "Name": "PMD QAC TIT2  ~ Quaternary Ammonium Compounds, Epton Titr.",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2747",
        "Identifier": "PMD-QAC(TIT3)",
        "Context": "USEPA",
        "Name": "PMD QAC TIT3  ~ Quaternary Ammonium Cl and Br by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2748",
        "Identifier": "PMD-RES(GC1)",
        "Context": "USEPA",
        "Name": "PMD RES GC1  ~ Resmethrin in Aerosols by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2749",
        "Identifier": "PMD-RES(GC2)",
        "Context": "USEPA",
        "Name": "PMD RES GC2  ~ Resmethrin by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2750",
        "Identifier": "PMD-RES(IR)",
        "Context": "USEPA",
        "Name": "PMD RES IR  ~ Resmethrin by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2751",
        "Identifier": "PMD-RES(LC)",
        "Context": "USEPA",
        "Name": "PMD RES LC  ~ Resmethrin in Aerosols by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2752",
        "Identifier": "PMD-ROT",
        "Context": "USEPA",
        "Name": "PMD ROT ~ Rotenone by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2762",
        "Identifier": "PMD-S-UF(GRV1",
        "Context": "USEPA",
        "Name": "PMD S UF GRV1 ~ Sulfur by CS2 Extraction and Gravimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2763",
        "Identifier": "PMD-S-UF(GRV2",
        "Context": "USEPA",
        "Name": "PMD S UF GRV2 ~ Sulfur by Oxidation and Gravimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2764",
        "Identifier": "PMD-S-UF(GRV3",
        "Context": "USEPA",
        "Name": "PMD S UF GRV3 ~ Sulfur by CS2 Extraction and Gravimetry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2765",
        "Identifier": "PMD-S-UO",
        "Context": "USEPA",
        "Name": "PMD S UO ~ Sulfur Dioxide by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2753",
        "Identifier": "PMD-SAE",
        "Context": "USEPA",
        "Name": "PMD SAE ~ Salicylanilide by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2754",
        "Identifier": "PMD-SEU",
        "Context": "USEPA",
        "Name": "PMD SEU ~ Siduron by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2755",
        "Identifier": "PMD-SIM",
        "Context": "USEPA",
        "Name": "PMD SIM ~ Simazine by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2756",
        "Identifier": "PMD-SN",
        "Context": "USEPA",
        "Name": "PMD SN ~ Tin in Organotins by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2757",
        "Identifier": "PMD-STM(UV)",
        "Context": "USEPA",
        "Name": "PMD STM UV  ~ Streptomycin by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2758",
        "Identifier": "PMD-STM(VIS)",
        "Context": "USEPA",
        "Name": "PMD STM VIS  ~ Streptomycin by Visible Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2759",
        "Identifier": "PMD-STY(GRAV)",
        "Context": "USEPA",
        "Name": "PMD STY GRAV  ~ Strychnine by Acid Precipitation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2760",
        "Identifier": "PMD-STY(LC)",
        "Context": "USEPA",
        "Name": "PMD STY LC  ~ Strychnine by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2761",
        "Identifier": "PMD-STY(UV)",
        "Context": "USEPA",
        "Name": "PMD STY UV  ~ Strychnine by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2766",
        "Identifier": "PMD-TBU",
        "Context": "USEPA",
        "Name": "PMD TBU ~ Tribenuron Methyl Ester by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2767",
        "Identifier": "PMD-TDU",
        "Context": "USEPA",
        "Name": "PMD TDU ~ Tebuthiuron by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2768",
        "Identifier": "PMD-TDZ",
        "Context": "USEPA",
        "Name": "PMD TDZ ~ Technazene by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2769",
        "Identifier": "PMD-TEI",
        "Context": "USEPA",
        "Name": "PMD TEI ~ Terbacil by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2770",
        "Identifier": "PMD-TFB",
        "Context": "USEPA",
        "Name": "PMD TFB ~ Tetrachlorvinphos by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2771",
        "Identifier": "PMD-TFK",
        "Context": "USEPA",
        "Name": "PMD TFK ~ Tetramethrin by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2772",
        "Identifier": "PMD-TFM",
        "Context": "USEPA",
        "Name": "PMD TFM ~ Triflumizole by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2773",
        "Identifier": "PMD-TFU",
        "Context": "USEPA",
        "Name": "PMD TFU ~ Lamprecid by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2774",
        "Identifier": "PMD-TFZ",
        "Context": "USEPA",
        "Name": "PMD TFZ ~ Thiabendazole by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2775",
        "Identifier": "PMD-THN",
        "Context": "USEPA",
        "Name": "PMD THN ~ Thiophanate by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2776",
        "Identifier": "PMD-THO",
        "Context": "USEPA",
        "Name": "PMD THO ~ Thiophanate-Methyl by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2777",
        "Identifier": "PMD-THR(IR)",
        "Context": "USEPA",
        "Name": "PMD THR IR  ~ Thiram by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2778",
        "Identifier": "PMD-THR(LC)",
        "Context": "USEPA",
        "Name": "PMD THR LC  ~ Thiram by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2779",
        "Identifier": "PMD-THR(UV)",
        "Context": "USEPA",
        "Name": "PMD THR UV  ~ Thiram by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2780",
        "Identifier": "PMD-TLC(OTP)",
        "Context": "USEPA",
        "Name": "PMD TLC OTP  ~ Organothiophosphates by TLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2781",
        "Identifier": "PMD-TLC(TLC1)",
        "Context": "USEPA",
        "Name": "PMD TLC TLC1  ~ TLC Systems for Pesticide Identification",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2782",
        "Identifier": "PMD-TLC(TLC2)",
        "Context": "USEPA",
        "Name": "PMD TLC TLC2  ~ TLC Systems for Pesticide Identification",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2783",
        "Identifier": "PMD-TLL",
        "Context": "USEPA",
        "Name": "PMD TLL ~ Triadimenol by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2784",
        "Identifier": "PMD-TPR",
        "Context": "USEPA",
        "Name": "PMD TPR ~ Triclopyr by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2785",
        "Identifier": "PMD-TQA",
        "Context": "USEPA",
        "Name": "PMD TQA ~ Triallate by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2786",
        "Identifier": "PMD-TQO",
        "Context": "USEPA",
        "Name": "PMD TQO ~ bis(Tri-n-butyltin) Oxide by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2787",
        "Identifier": "PMD-TRC(GC1)",
        "Context": "USEPA",
        "Name": "PMD TRC GC1  ~ Trichlorfon by GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2788",
        "Identifier": "PMD-TRC(GC2)",
        "Context": "USEPA",
        "Name": "PMD TRC GC2  ~ Trichlorfon by Derivatization and GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2789",
        "Identifier": "PMD-TRC(IR)",
        "Context": "USEPA",
        "Name": "PMD TRC IR  ~ Trichlorfon by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2790",
        "Identifier": "PMD-TRC(LC)",
        "Context": "USEPA",
        "Name": "PMD TRC LC  ~ Trichlorfon by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2791",
        "Identifier": "PMD-TSU",
        "Context": "USEPA",
        "Name": "PMD TSU ~ Trifluralin by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2792",
        "Identifier": "PMD-VAE",
        "Context": "USEPA",
        "Name": "PMD VAE ~ PMP by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2793",
        "Identifier": "PMD-VER(IR)",
        "Context": "USEPA",
        "Name": "PMD VER IR  ~ Vernolate by IR Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2794",
        "Identifier": "PMD-VER(LC)",
        "Context": "USEPA",
        "Name": "PMD VER LC  ~ Vernolate by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2795",
        "Identifier": "PMD-WAR",
        "Context": "USEPA",
        "Name": "PMD WAR ~ Warfarin and Sulfaquinoxaline by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2796",
        "Identifier": "PMD-WAR(LC)",
        "Context": "USEPA",
        "Name": "PMD WAR LC  ~ Warfarin by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2797",
        "Identifier": "PMD-WAR(UV)",
        "Context": "USEPA",
        "Name": "PMD WAR UV  ~ Warfarin by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2798",
        "Identifier": "PMD-WTY",
        "Context": "USEPA",
        "Name": "PMD WTY ~ Triethylene Glycol by GC\TCD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2799",
        "Identifier": "PMD-ZIR",
        "Context": "USEPA",
        "Name": "PMD ZIR ~ Ziram by UV Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2800",
        "Identifier": "PMD-ZN-T(GC)",
        "Context": "USEPA",
        "Name": "PMD ZN T GC  ~ Zinc Phosphide by GC\FPD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2801",
        "Identifier": "PMD-ZN-T(TITR)",
        "Context": "USEPA",
        "Name": "PMD ZN T TITR  ~ Zinc Phosphide by Titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4737",
        "Identifier": "PO-01-RC",
        "Context": "USDOE\EML",
        "Name": "PO-01 RC ~ Polonium in Water and Urine",
        "Description": "Po-01-RC ~ DOE EML . Polonium in Water and Urine",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4845\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4738",
        "Identifier": "PO-02-RC",
        "Context": "USDOE\EML",
        "Name": "PO-02 RC ~ Polonium in Water, Vegetation, Soil, and Air Filters",
        "Description": "Po-02-RC ~ DOE EML . Polonium in Water, Vegetation, Soil, and Air Filters",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4846\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4959",
        "Identifier": "POCIS",
        "Context": "USDOI\USGS",
        "Name": "Polar Organic Chemical Integrative Sampler (POCIS)",
        "Description": "POCIS ~ USGS . Polar Organic Chemical Integrative Sampler (POCIS)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10622\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1251",
        "Identifier": "PO_01",
        "Context": "USDOE\EML",
        "Name": "Polonium in Water and Urine",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1252",
        "Identifier": "PO_02(S)",
        "Context": "USDOE\EML",
        "Name": "PO_02 S  ~ Polonium in Soil and Air Filters",
        "Description": " in Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1253",
        "Identifier": "PO_02(W)",
        "Context": "USDOE\EML",
        "Name": "PO_02 W  ~ Polonium in Water and Vegetation",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5070",
        "Identifier": "PREDICTIVE MODELING",
        "Context": "USEPA",
        "Name": "Van Sickle, J.",
        "Description": "RIVPACS-type predictive modeling ~ EPA . Van Sickle, J.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11952\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6182",
        "Identifier": "PROBE",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-228, BS,ALPHA (EBERLINE)",
        "Description": "Thorium-228, bed sediment, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:54 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6006",
        "Identifier": "PSWMRU_WQ10",
        "Context": "USDA\ARS",
        "Name": "PSWMRU_WQ10",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=PSWMRU_WQ10",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6008",
        "Identifier": "PSWMRU_WQ11",
        "Context": "USDA\ARS",
        "Name": "PSWMRU_WQ11",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=PSWMRU_WQ11",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:12 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5988",
        "Identifier": "PSWMRU_WQ12",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=PSWMRU_WQ12",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ06",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6005",
        "Identifier": "PSWMRU_WQ17",
        "Context": "USDA\ARS",
        "Name": "PSWMRU_WQ17",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=PSWMRU_WQ17",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6007",
        "Identifier": "PSWMRU_WQ18",
        "Context": "USDA\ARS",
        "Name": "PSWMRU_WQ18",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=PSWMRU_WQ18",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:11 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6009",
        "Identifier": "PSWMRU_WQ19",
        "Context": "USDA\ARS",
        "Name": "PSWMRU_WQ19",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=PSWMRU_WQ19",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:12 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6012",
        "Identifier": "PSWMRU_WQ19.1",
        "Context": "USDA\ARS",
        "Name": "PSWMRU_WQ19.1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=PSWMRU_WQ19.1",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:12 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5976",
        "Identifier": "PSWMRU_WQ2",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=PSWMRU_WQ2",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=PSWMRU_WQ2",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:39 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6010",
        "Identifier": "PSWMRU_WQ5",
        "Context": "USDA\ARS",
        "Name": "PSWMRU_WQ5",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=PSWMRU_WQ5",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:12 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6011",
        "Identifier": "PSWMRU_WQ5.1",
        "Context": "USDA\ARS",
        "Name": "PSWMRU_WQ5.1",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=PSWMRU_WQ5.1",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:12 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4958",
        "Identifier": "PTI FOR FRESHWATER",
        "Context": "USDOI\USGS",
        "Name": "Pesticide Toxicity Index (PTI) for Freshwater Aquatic Organisms",
        "Description": "Pesticide Toxicity Index (PTI) for Freshwater Aquatic Organisms ~ USGS NAWQA . Munn, M.D., Gilliom, R.J., Moran, P.W., and Nowell, L.H.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11960\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2802",
        "Identifier": "PU-01",
        "Context": "USEPA",
        "Name": "PU-01 ~ Plutonium in Water and Ashed Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2803",
        "Identifier": "PU-02",
        "Context": "USEPA",
        "Name": "PU-02 ~ Plutonium-236 Tracer Solution",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1254",
        "Identifier": "PU_01",
        "Context": "USDOE\EML",
        "Name": "PU-01 ~ Plutonium in Air Filters",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1255",
        "Identifier": "PU_02",
        "Context": "USDOE\EML",
        "Name": "PU-02 ~ Plutonium in Soil Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1256",
        "Identifier": "PU_03",
        "Context": "USDOE\EML",
        "Name": "Plutonium in Soil Residue",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1257",
        "Identifier": "PU_04",
        "Context": "USDOE\EML",
        "Name": "Plutonium in Tissue",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1258",
        "Identifier": "PU_05",
        "Context": "USDOE\EML",
        "Name": "Plutonium in Tissue",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1259",
        "Identifier": "PU_06",
        "Context": "USDOE\EML",
        "Name": "Plutonium in Urine",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1260",
        "Identifier": "PU_07",
        "Context": "USDOE\EML",
        "Name": "Plutonium in Large Urine Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1261",
        "Identifier": "PU_08",
        "Context": "USDOE\EML",
        "Name": "Plutonium in Vegetation Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1262",
        "Identifier": "PU_09",
        "Context": "USDOE\EML",
        "Name": "Plutonium in Vegetation Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1263",
        "Identifier": "PU_10",
        "Context": "USDOE\EML",
        "Name": "Plutonium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4710",
        "Identifier": "PV2072",
        "Context": "NIOSH",
        "Name": "Rhodamine B by HPCL-UV-FL",
        "Description": "PV2072 ~ NIOSH . Rhodamine B by HPCL-UV-FL",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10929\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5314",
        "Identifier": "Pb-01-RC",
        "Context": "DOE",
        "Name": "Pb-01-RC ~ Pb-01 RC ~ Lead-210 in Bone, Food, Urine, Feces, Blood, Air, and Water",
        "Description": "Lead-210 is isolated from most interferences. Its progeny 210Bi is separated from 210Pb, and the beta activity is measured by atomic absorption spectrometer radiometrically after ingrowth.",
        "QualifierType": "duplicate records",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4844\",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770792",
        "Identifier": "Percent Moisture",
        "Context": "PACE LABS",
        "Name": "Percent Moisture",
        "Description": "Biological Tissue Analysis - Percent Moisture  In House SOP, https:\\www.pacelabs.com\environmental-services\specialty-services\biological-tissue-analysis\methods.html",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-06-25T11:01:15 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "19268",
        "Identifier": "Pole",
        "Context": "WQXTEST",
        "Name": "Pole ~ MassWateR; Pole Water Sample Collection",
        "Description": "This method involves the collection of a surface water sample using a water bottle affixed to a poll, typically extended from shore. This is a generic method intended for use by MassWateR users.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-12-12T18:20:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6184",
        "Identifier": "Q-EST",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-228, WF,ALPHA (EBERLINE)",
        "Description": "Thorium-228, water, filtered, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6183",
        "Identifier": "QADCP",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-228, SUS SED, ALPHA SPEC",
        "Description": "Thorium-228, suspended sediment, pCi\L, by alpha spectrometry",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:54 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5997",
        "Identifier": "QAPP",
        "Context": "USDA\ARS",
        "Name": "QAPP",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=QAPP",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:10 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6185",
        "Identifier": "QFLUM",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-228, WU,ALPHA (EBERLINE)",
        "Description": "Thorium-228, water, unfiltered, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6186",
        "Identifier": "QSCMM",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-230, BED SED,ALPHA (STL)",
        "Description": "Thorium-230, bed sediment, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6187",
        "Identifier": "QSTGQ",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-230, SUS SED,ALPHA (STL)",
        "Description": "Thorium-230, suspended sediment, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5057",
        "Identifier": "QUALITY ASSESSMENT",
        "Context": "USEPA",
        "Name": "U.S. Environmental Protection Agency",
        "Description": "Data Quality Assessment: Statistical Methods for Practitioners ~ EPA-QUALITY . U.S. Environmental Protection Agency",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11928\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6188",
        "Identifier": "QVOLM",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-230, WF, ALPHA SPEC",
        "Description": "Thorium-230, Water, Filtered, @ 1.0 pCi\L, by Alpha Spectrometry",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "947564",
        "Identifier": "Quanti-Tray\2000",
        "Context": "IDEXX",
        "Name": "Quanti-Tray\2000",
        "Description": "IDEXX Quanti-Tray\2000 is designed to give quantitated bacterial counts of 100 ml samples using IDEXX Defined Substrate Technology reagent products.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-01-13T15:50:01 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2804",
        "Identifier": "R-001-1",
        "Context": "USEPA",
        "Name": "QC for Alpha\Beta Sample Analysis",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2805",
        "Identifier": "R-002-1",
        "Context": "USEPA",
        "Name": "Gross Alpha\Beta Activity in Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2806",
        "Identifier": "R-004-1",
        "Context": "USEPA",
        "Name": "Gross Alpha\Beta Activity in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2807",
        "Identifier": "R-005-1",
        "Context": "USEPA",
        "Name": "Gross Alpha\Beta Activity in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2808",
        "Identifier": "R-006-1",
        "Context": "USEPA",
        "Name": "Gross Alpha and Beta Activity in Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2809",
        "Identifier": "R-007-1",
        "Context": "USEPA",
        "Name": "Gross Alpha\Beta Activity in Biota",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2810",
        "Identifier": "R-008-1",
        "Context": "USEPA",
        "Name": "Gross Alpha\Beta Activity in Biota, Extended",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1588",
        "Identifier": "R1110",
        "Context": "USDOI\USGS",
        "Name": "Cesium-137 and 134, Dissolved",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1589",
        "Identifier": "R1130",
        "Context": "USDOI\USGS",
        "Name": "Lead-210",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1590",
        "Identifier": "R1140",
        "Context": "USDOI\USGS",
        "Name": "Radium",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1591",
        "Identifier": "R1141",
        "Context": "USDOI\USGS",
        "Name": "Radium-226",
        "Description": "R1141 ~ USGS-NWQL . Radium-226",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4775\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1592",
        "Identifier": "R1142",
        "Context": "USDOI\USGS",
        "Name": "Radium-228",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1593",
        "Identifier": "R1150",
        "Context": "USDOI\USGS",
        "Name": "Radioruthenium",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1594",
        "Identifier": "R1160",
        "Context": "USDOI\USGS",
        "Name": "Strontium-90",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1595",
        "Identifier": "R1171",
        "Context": "USDOI\USGS",
        "Name": "Tritium - Liquid Scintillation, Denver Lab",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1596",
        "Identifier": "R1172",
        "Context": "USDOI\USGS",
        "Name": "Tritium - Electrolytic, Denver Lab",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1597",
        "Identifier": "R1173",
        "Context": "USDOI\USGS",
        "Name": "Tritium - Liquid Scintillation, Reston Lab",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1598",
        "Identifier": "R1174",
        "Context": "USDOI\USGS",
        "Name": "Tritium - Electrolytic, Reston Lab",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1599",
        "Identifier": "R1180",
        "Context": "USDOI\USGS",
        "Name": "Uranium - Fluorometric",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1600",
        "Identifier": "R1181",
        "Context": "USDOI\USGS",
        "Name": "Uranium - Fluorometric, Extraction",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1601",
        "Identifier": "R1182",
        "Context": "USDOI\USGS",
        "Name": "Uranium - Alpha Spectroscopy",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5740",
        "Identifier": "R1902",
        "Context": "R-BIOPHARM",
        "Name": "Efficacy of molecular DNA methods for confirming species",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2811",
        "Identifier": "RA-01",
        "Context": "USEPA",
        "Name": "RA-01 ~ Radium-226 in Solids",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1264",
        "Identifier": "RA-01",
        "Context": "USDOE\EML",
        "Name": "RA-01 ~ Radium-226 in Bone Ash",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1265",
        "Identifier": "RA-02",
        "Context": "USDOE\EML",
        "Name": "RA-02 ~ Radium-226 - Chromate Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2812",
        "Identifier": "RA-02",
        "Context": "USEPA",
        "Name": "RA-02 ~ Radium-226 in Urine",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4739",
        "Identifier": "RA-02-RC",
        "Context": "USDOE\EML",
        "Name": "RA-02 RC ~ Radium-226 - Emanation Procedure",
        "Description": "Ra-02-RC ~ DOE EML . Radium-226 - Emanation Procedure",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4847\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1266",
        "Identifier": "RA-03",
        "Context": "USDOE\EML",
        "Name": "RA-03 ~ Radium-226 - Emanation Procedure",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2813",
        "Identifier": "RA-03",
        "Context": "USEPA",
        "Name": "RA-03 ~ Radium-226 in Water Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1267",
        "Identifier": "RA-04",
        "Context": "USDOE\EML",
        "Name": "RA-04 ~ Radium-226",
        "Description": "https:\\www.nemi.gov\methods\method_summary\4848\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2814",
        "Identifier": "RA-04",
        "Context": "USEPA",
        "Name": "RA-04 ~ Radium-226 De-emanation Procedure",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4740",
        "Identifier": "RA-04-RC",
        "Context": "USDOE\EML",
        "Name": "RA-04 RC ~ Radium-226 in Tap Water, Urine, and Feces",
        "Description": "Ra-04-RC ~ DOE EML . Radium-226 in Tap Water, Urine, and Feces",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4848\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2815",
        "Identifier": "RA-05",
        "Context": "USEPA",
        "Name": "RA-05 ~ Radium-228 in Water Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1268",
        "Identifier": "RA-05",
        "Context": "USDOE\EML",
        "Name": "RA-05 ~ Radium-226",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1269",
        "Identifier": "RA-06",
        "Context": "USDOE\EML",
        "Name": "Radium-224",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4741",
        "Identifier": "RA-06-RC",
        "Context": "USDOE\EML",
        "Name": "RA-06 RC ~ Radium-226 in Urine and Water",
        "Description": "Ra-06-RC ~ DOE EML . Radium-226 in Urine and Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4849\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1270",
        "Identifier": "RA-07",
        "Context": "USDOE\EML",
        "Name": "Radium-226",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1200",
        "Identifier": "RA010",
        "Context": "USDOE\ASD",
        "Name": "EIC for Gross Alpha Emission from Indoor",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1201",
        "Identifier": "RA020",
        "Context": "USDOE\ASD",
        "Name": "Alpha Track Detectors for Alpha Emission",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5069",
        "Identifier": "RBP",
        "Context": "USEPA",
        "Name": "Barbour, M.T., Gerritsen, J., Snyder, B., and Stribling, J.B.",
        "Description": "Rapid Boassessment Protocols for Use in Wadeable Streams and Rivers: Periphyton, Benthic Macroinvertebrates, and Fish ~ EPA . Barbour, M.T., Gerritsen, J., Snyder, B., and Stribling, J.B.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11945\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6189",
        "Identifier": "RED01",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-230, WU,ALPHA SPEC (STL)",
        "Description": "Thorium-230, water, unfiltered @ 0.4 pCi\L, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6190",
        "Identifier": "RED02",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-230, BS,ALPHA (EBERLINE)",
        "Description": "Thorium-230, bed sediment, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4762",
        "Identifier": "REDOX GW",
        "Context": "USDOI\USGS",
        "Name": "Jurgens, Bryant C., McMahon, Peter B., Chapelle, Francis H., and Eberts, Sandra M.",
        "Description": "Excel® Workbook for Identifying Redox Processes in Ground Water ~ USGS . Jurgens, Bryant C., McMahon, Peter B., Chapelle, Francis H., and Eberts, Sandra M.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11932\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1202",
        "Identifier": "RI010",
        "Context": "USDOE\ASD",
        "Name": "Gamma-Ray Spectrometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1203",
        "Identifier": "RI100",
        "Context": "USDOE\ASD",
        "Name": "Liquid Scintillation Instrumentation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5311",
        "Identifier": "RM8-10",
        "Context": "CHEVRON",
        "Name": "Diquat and Paraquat in sediment by spectrophotometry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2015-06-04T10:56:33 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1271",
        "Identifier": "RN-01",
        "Context": "USDOE\EML",
        "Name": "Radon-222 in Air and Breath Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6191",
        "Identifier": "ROE10",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-230, SS,ALPHA (EBERLINE)",
        "Description": "Thorium-230, suspended sediment, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1204",
        "Identifier": "RP230",
        "Context": "USDOE\ASD",
        "Name": "Iodine-129 in Aqueous Solutions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1205",
        "Identifier": "RP280",
        "Context": "USDOE\ASD",
        "Name": "Determination of Lead-210 in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1206",
        "Identifier": "RP300",
        "Context": "USDOE\ASD",
        "Name": "Ni-59 and Ni-63 in Aqueous Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1207",
        "Identifier": "RP330",
        "Context": "USDOE\ASD",
        "Name": "Niobium-93m and 94 in Aqueous Solutions",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1208",
        "Identifier": "RP450",
        "Context": "USDOE\ASD",
        "Name": "Radium-226 in Aqueous Samples",
        "Description": "RP450 ~ DOE . Radium-226 in Aqueous Samples",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4776\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1209",
        "Identifier": "RP501(1)",
        "Context": "USDOE\ASD",
        "Name": "Strontium in High Level Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1210",
        "Identifier": "RP510",
        "Context": "USDOE\ASD",
        "Name": "Strontium-90 in Dissolved Samples",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1211",
        "Identifier": "RP520",
        "Context": "USDOE\ASD",
        "Name": "Strontium-90 in Soil, Water and Filter",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1212",
        "Identifier": "RP530",
        "Context": "USDOE\ASD",
        "Name": "Selenium-79 in Aqueous Samples",
        "Description": "RP530 ~ DOE . Selenium-79 in Aqueous Samples",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4777\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1213",
        "Identifier": "RP550",
        "Context": "USDOE\ASD",
        "Name": "Technetium-99 Using Liquid Scintillation",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1214",
        "Identifier": "RP570",
        "Context": "USDOE\ASD",
        "Name": "Thorium Isotopes by Radiochemistry",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1215",
        "Identifier": "RP580",
        "Context": "USDOE\ASD",
        "Name": "Tritium by Distillation of Waters and Soils",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1216",
        "Identifier": "RP710",
        "Context": "USDOE\ASD",
        "Name": "Gross Alpha and Beta Activity",
        "Description": "RP710 ~ DOE . Gross Alpha and Beta Activity",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4778\",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1217",
        "Identifier": "RP720",
        "Context": "USDOE\ASD",
        "Name": "Gross Alpha, Beta and Tritium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1218",
        "Identifier": "RP725",
        "Context": "USDOE\ASD",
        "Name": "Group Actinide Screening by Extraction",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1219",
        "Identifier": "RP730",
        "Context": "USDOE\ASD",
        "Name": "Gross Gamma Screening for Matrices",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1220",
        "Identifier": "RP735",
        "Context": "USDOE\ASD",
        "Name": "Determination of Total Fissile Content",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1221",
        "Identifier": "RS100",
        "Context": "USDOE\ASD",
        "Name": "Radionuclides by Borehole Logging",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1222",
        "Identifier": "RS551",
        "Context": "USDOE\ASD",
        "Name": "Isolation of Technetium-99 by Anion Exchange",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5272",
        "Identifier": "RSK-175",
        "Context": "USEPA",
        "Name": "Analysis for Dissolved Methane, Ethane, and Ethylene in Ground Water",
        "Description": "URL: http:\\http:\\pastechnology.weebly.com\uploads\4\2\6\8\4268497\dissolved_gases_in_water_epa_rsk-175_ht3.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2014-06-19T07:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2816",
        "Identifier": "S-001-1",
        "Context": "USEPA",
        "Name": "Semivolatiles in Water by CS2 Extraction",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2817",
        "Identifier": "S-002-1",
        "Context": "USEPA",
        "Name": "Field Screening Semivolatiles in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2818",
        "Identifier": "S-003-1",
        "Context": "USEPA",
        "Name": "Semivolatiles in Soil (MeCl2 Extraction)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2819",
        "Identifier": "S-004-1",
        "Context": "USEPA",
        "Name": "Field Screening Semivolatiles in Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6056",
        "Identifier": "S-9.20",
        "Context": "WREP-125",
        "Name": "WREP-125 ~ S-9.20; Soil Organic Matter by Loss On Ignition Method",
        "Description": "Gavlack, R., Horneck, D., Miller, R., Soil, Plant, and Water Reference Methods for the Western Region. 3rd Edition. WREP-125, 2005. P.144-145",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2024-11-18T15:01:20 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6239",
        "Identifier": "S249",
        "Context": "USEPA",
        "Name": "Carbon dioxide",
        "Description": "NIOSH-validated method used to measure worker exposure to carbon dioxide ( ) in workplace atmospheres",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-03-26T09:10:26 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1223",
        "Identifier": "SA010",
        "Context": "USDOE\ASD",
        "Name": "VOCs in Headspace Gas with Manifold",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1224",
        "Identifier": "SA011",
        "Context": "USDOE\ASD",
        "Name": "VOCs in Headspace Gas using SUMMA Canisters",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5072",
        "Identifier": "SAGWMD",
        "Context": "USEPA",
        "Name": "Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities - Unified Guidance ",
        "Description": "Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities - Unified Guidance ~ EPA . USEPA",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11942\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4742",
        "Identifier": "SAMP-U,RA",
        "Context": "USDOE\EML",
        "Name": "SAMP U,RA ~ Uranium and Radium in Water",
        "Description": "Samp-U,Ra ~ DOE EML . Uranium and Radium in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4856\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6192",
        "Identifier": "SC001",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-230, WF, ALPHA SPEC",
        "Description": "Thorium-230, water, filtered, pCi\L, by alpha spectrometry",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6267",
        "Identifier": "SC003",
        "Context": "USDOI\USGS",
        "Name": "Specific cond, field (NRP\CO)",
        "Description": "Specific conductance, water, field, electrometry (NRP @ CO WSC)",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-04-17T20:27:30 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5999",
        "Identifier": "SDRU_WQ02",
        "Context": "USDA\ARS",
        "Name": "SDRU_WQ02",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ02",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-07-12T00:14:10 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5985",
        "Identifier": "SDRU_WQ03",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ03",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ07",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5984",
        "Identifier": "SDRU_WQ04",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ04",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ06",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5977",
        "Identifier": "SDRU_WQ06",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ06",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ06",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:39 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5978",
        "Identifier": "SDRU_WQ07",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ07",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ07",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:39 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5979",
        "Identifier": "SDRU_WQ11",
        "Context": "USDA\ARS",
        "Name": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ11",
        "Description": "https:\\www.nrrig.mwa.ars.usda.gov\st40_javascript\methods.aspx?methodstring=SDRU_WQ11",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2023-06-28T18:56:39 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1272",
        "Identifier": "SE-01",
        "Context": "USDOE\EML",
        "Name": "Isotopic Uranium and Radium-226",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4743",
        "Identifier": "SE-03",
        "Context": "USDOE\EML",
        "Name": "Americium, Plutonium and Uranium in Water",
        "Description": "Se-03 ~ DOE EML . Americium, Plutonium and Uranium in Water",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4854\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6193",
        "Identifier": "SED02",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-232, BED SED,ALPHA (STL)",
        "Description": "Thorium-232, bed sediment, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6194",
        "Identifier": "SED09",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-232, SUS SED,ALPHA (STL)",
        "Description": "Thorium-232, suspended sediment, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6195",
        "Identifier": "SED10",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-232, WF,ALPHA SPEC (STL)",
        "Description": "Thorium-232, water, filtered, @ 1.0 pCi\L, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6196",
        "Identifier": "SED16",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-232, WU,ALPHA SPEC (STL)",
        "Description": "Thorium-232, water, unfiltered @ 0.4 pCi\L, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6197",
        "Identifier": "SED30",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-232, BS,ALPHA (EBERLINE)",
        "Description": "Thorium-232, bed sediment, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5893",
        "Identifier": "SFAM01.1",
        "Context": "USEPA",
        "Name": "SFAM01.1 ~ USEPA; Superfund Analytical Methods (SFAM01.1)",
        "Description": "SFAM01.1 ~ USEPA . https:\\www.epa.gov\clp\superfund-analytical-methods-sfam011 The Superfund CLP Organic and Inorganic analytical services are presented in the Superfund Analytical Methods (SFAM01.1) Statement of Work (SOW). This SOW defines the analytical methods for the isolation, detection, and quantitative measurement of 54 Trace Volatiles [5 analytes by Selected Ion Monitoring (SIM)], 54 Low\Medium Volatiles, 71 Semivolatiles (20 analytes by SIM), 21 Pesticides, 9 Aroclors, 23 metals (including Mercury), Cyanide, Anions, Hexavalent Chromium, and Total Organic Carbon (TOC) in aqueous\water, soil\sediment, waste, or wipe samples as applicable. In addition, the SOW specifies procedures for percent solids, pH and the leaching of samples by the Toxicity Characteristic Leaching Procedures (TCLP) and the Synthetic Precipitation Leaching Procedure (SPLP).",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-11-22T11:09:53 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2820",
        "Identifier": "SFSAS_1",
        "Context": "USEPA",
        "Name": "Total Organic Carbon in Sediment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2821",
        "Identifier": "SFSAS_10",
        "Context": "USEPA",
        "Name": "Phenols in Sediment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2822",
        "Identifier": "SFSAS_11",
        "Context": "USEPA",
        "Name": "Mercury in Sediment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2823",
        "Identifier": "SFSAS_12",
        "Context": "USEPA",
        "Name": "Mercury in Fish",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2824",
        "Identifier": "SFSAS_13",
        "Context": "USEPA",
        "Name": "Metals in Sediment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2825",
        "Identifier": "SFSAS_14",
        "Context": "USEPA",
        "Name": "Metals in Fish",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2826",
        "Identifier": "SFSAS_15",
        "Context": "USEPA",
        "Name": "Arsenic and Selenium in Sediment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2827",
        "Identifier": "SFSAS_16",
        "Context": "USEPA",
        "Name": "Organics in Sediment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2828",
        "Identifier": "SFSAS_17",
        "Context": "USEPA",
        "Name": "Ethylene Glycol in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2829",
        "Identifier": "SFSAS_18",
        "Context": "USEPA",
        "Name": "Total Organic Carbon in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2830",
        "Identifier": "SFSAS_19",
        "Context": "USEPA",
        "Name": "Total Organic Carbon in Sediment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2831",
        "Identifier": "SFSAS_2",
        "Context": "USEPA",
        "Name": "PCBs in Transformer Fluid and Waste Oil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2832",
        "Identifier": "SFSAS_20",
        "Context": "USEPA",
        "Name": "Total Phosphates in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2833",
        "Identifier": "SFSAS_21",
        "Context": "USEPA",
        "Name": "Soil Volume by Volumetric Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2834",
        "Identifier": "SFSAS_22",
        "Context": "USEPA",
        "Name": "Soil Volume by Displacement Method",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2835",
        "Identifier": "SFSAS_23",
        "Context": "USEPA",
        "Name": "Flow of Water Through Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2836",
        "Identifier": "SFSAS_24",
        "Context": "USEPA",
        "Name": "Permeability of Cohesionless Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2837",
        "Identifier": "SFSAS_25",
        "Context": "USEPA",
        "Name": "Permeability of Soil",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2838",
        "Identifier": "SFSAS_26",
        "Context": "USEPA",
        "Name": "Permeability of Soil with Back Pressure",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2839",
        "Identifier": "SFSAS_27",
        "Context": "USEPA",
        "Name": "Permeability of Soil with Consolidometer",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2840",
        "Identifier": "SFSAS_28",
        "Context": "USEPA",
        "Name": "Permeability of Soil Using Constant-Head",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2841",
        "Identifier": "SFSAS_29",
        "Context": "USEPA",
        "Name": "Organics in Biological Tissue",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2842",
        "Identifier": "SFSAS_3",
        "Context": "USEPA",
        "Name": "Chlorinated Pesticides in Sediments",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2843",
        "Identifier": "SFSAS_4",
        "Context": "USEPA",
        "Name": "Chlorinated Pesticides in Fish",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2844",
        "Identifier": "SFSAS_5",
        "Context": "USEPA",
        "Name": "Purgeable Organics in Fish",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2845",
        "Identifier": "SFSAS_6",
        "Context": "USEPA",
        "Name": "Organics in Fish",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2846",
        "Identifier": "SFSAS_7",
        "Context": "USEPA",
        "Name": "Purgeable Organics in Sediment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2847",
        "Identifier": "SFSAS_8",
        "Context": "USEPA",
        "Name": "Cyanide in Sediment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2848",
        "Identifier": "SFSAS_9",
        "Context": "USEPA",
        "Name": "Cyanide in Fish",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "870277",
        "Identifier": "SGS_AXYS1",
        "Context": "SGS_AXYS",
        "Name": "EPAmethod1694 revised",
        "Description": "SGS AXYS Method MLA-075: analysis of pharmaceutical and personal care products and hormones in solid, aqueous, tissue and pocis samples by LC-MS\MS.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-03-23T12:21:24 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "870278",
        "Identifier": "SGS_AXYS2",
        "Context": "SGS_AXYS",
        "Name": "SGS AXYS MLA-080",
        "Description": "SGS AXYS Method MLA-080: analytical procedure for the analysis of alkylphenols and alkylphenol ethoxylates in tissue by LC-MS\MS.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-03-23T12:22:10 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "870279",
        "Identifier": "SGS_AXYS3",
        "Context": "SGS_AXYS",
        "Name": "SGS AXYS MLA-115",
        "Description": "SGS AXYS Method MLA-115: analytical method for the determination of triclosan and methyl triclosan in tissues by GC\HRMS.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-03-23T12:22:46 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6198",
        "Identifier": "SHC02",
        "Context": "USDOI\USGS",
        "Name": "COLORIMETRY, SALICYLATE-HYPOCHLORITE, DA",
        "Description": "a propriety analytical method for measuring ammonia in filtered water using a discrete analyzer with a salicylate colorimetric technique",
        "QualifierType": "",
        "URL": "https:\\pubs.usgs.gov\sir\2016\5129\sir20165129.pdf",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5062",
        "Identifier": "SIMILARITY ANALYSIS",
        "Context": "USEPA",
        "Name": "Mean Similarity Analysis ~ EPA ; Van Sickle, J.",
        "Description": "Mean Similarity Analysis ~ EPA . Van Sickle, J.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11953\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5091",
        "Identifier": "SIMPLATE",
        "Context": "IDEXX",
        "Name": "SimPlate for HPC",
        "Description": "SimPlate ~ IDEXX . SimPlate for HPC",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\5591\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6199",
        "Identifier": "SLD04",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-232, WF,ALPHA (EBERLINE)",
        "Description": "Thorium-232, water, filtered, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3209",
        "Identifier": "SM2310B",
        "Context": "APHA_SM20ED",
        "Name": "SM2310 B ~ Acidity in water by titration",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-01-09T18:34:37 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3210",
        "Identifier": "SM2310B4a",
        "Context": "APHA_SM20ED",
        "Name": "SM2310 B4a ~ Hot Peroxide Acidity",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-01-09T18:34:37 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3211",
        "Identifier": "SM2310B4d",
        "Context": "APHA_SM20ED",
        "Name": "SM2310 B4d ~ Phenolphthalein acidity, methyl orange acidity",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2012-01-09T18:34:38 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4966",
        "Identifier": "SMWR",
        "Context": "USDOI\USGS",
        "Name": "SMWR ~ Statistical Methods in Water Resources ~ USGS ; Helsel, D.R. and Hirsch, R.M.",
        "Description": "Statistical Methods in Water Resources ~ USGS . Helsel, D.R. and Hirsch, R.M.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11941\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6252",
        "Identifier": "SOM01.1",
        "Context": "USEPA",
        "Name": "Analytical Method For The Analysis Of Aroclors",
        "Description": "Solvent extraction and cleanup followed by dual-column capillary GC\ECD analysis.",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-04-17T20:27:28 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6043",
        "Identifier": "SOM01.2_AROCLOR",
        "Context": "USEPA",
        "Name": "Aroclors in water and soil by dual column GC\ECD",
        "Description": "EPA Superfund Organic Methods 1.2 (https:\\nepis.epa.gov\Exe\ZyPURL.cgi?Dockey=P100GLDS.TXT)",
        "QualifierType": "",
        "URL": "https:\\nepis.epa.gov\Exe\ZyPDF.cgi\P100GLDS.PDF?Dockey=P100GLDS.PDF",
        "LastChangeDate": "2024-06-25T13:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6042",
        "Identifier": "SOM01.2_PEST",
        "Context": "USEPA",
        "Name": "Pesticides in water and soil by dual column GC\ECD",
        "Description": "EPA Superfund Organic Methods 1.2 (https:\\nepis.epa.gov\Exe\ZyPURL.cgi?Dockey=P100GLDS.TXT)",
        "QualifierType": "",
        "URL": "https:\\nepis.epa.gov\Exe\ZyPDF.cgi\P100GLDS.PDF?Dockey=P100GLDS.PDF",
        "LastChangeDate": "2024-06-25T13:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6041",
        "Identifier": "SOM01.2_SVOC",
        "Context": "USEPA",
        "Name": "Semivolatile organics in water and soil by GC\MS",
        "Description": "EPA Superfund Organic Methods 1.2 (https:\\nepis.epa.gov\Exe\ZyPURL.cgi?Dockey=P100GLDS.TXT)",
        "QualifierType": "",
        "URL": "https:\\nepis.epa.gov\Exe\ZyPDF.cgi\P100GLDS.PDF?Dockey=P100GLDS.PDF",
        "LastChangeDate": "2024-06-25T13:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6039",
        "Identifier": "SOM01.2_TRVOC",
        "Context": "USEPA",
        "Name": "Trace concentrations of volatile organics in water by purge-and-trap, GC\MS",
        "Description": "EPA Superfund Organic Methods 1.2 (https:\\nepis.epa.gov\Exe\ZyPURL.cgi?Dockey=P100GLDS.TXT)",
        "QualifierType": "",
        "URL": "https:\\nepis.epa.gov\Exe\ZyPDF.cgi\P100GLDS.PDF?Dockey=P100GLDS.PDF",
        "LastChangeDate": "2024-06-25T13:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6040",
        "Identifier": "SOM01.2_VOC",
        "Context": "USEPA",
        "Name": "Volatile organics in water and soil by purge-and-trap, GC\MS",
        "Description": "EPA Superfund Organic Methods 1.2 (https:\\nepis.epa.gov\Exe\ZyPURL.cgi?Dockey=P100GLDS.TXT)",
        "QualifierType": "",
        "URL": "https:\\nepis.epa.gov\Exe\ZyPDF.cgi\P100GLDS.PDF?Dockey=P100GLDS.PDF",
        "LastChangeDate": "2024-06-25T13:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6050",
        "Identifier": "SOM02.2_AROCLOR",
        "Context": "USEPA",
        "Name": "Aroclors in water and soil by dual column GC\ECD",
        "Description": "EPA Superfund Organic Methods 2.2",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-03\documents\som22d.pdf",
        "LastChangeDate": "2024-06-25T13:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6044",
        "Identifier": "SOM02.2_GENORG",
        "Context": "USEPA",
        "Name": "General organics by gravimetry",
        "Description": "EPA Superfund Organic Methods 2.2",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-03\documents\som22d.pdf",
        "LastChangeDate": "2024-06-25T13:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6046",
        "Identifier": "SOM02.2_LMVOC",
        "Context": "USEPA",
        "Name": "Low\medium concentrations of volatile organics in water by purge-and-trap, GC\MS",
        "Description": "EPA Superfund Organic Methods 2.2",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-03\documents\som22d.pdf",
        "LastChangeDate": "2024-06-25T13:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6049",
        "Identifier": "SOM02.2_PEST",
        "Context": "USEPA",
        "Name": "Pesticides in water and soil by dual column GC\ECD",
        "Description": "EPA Superfund Organic Methods 2.2",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-03\documents\som22d.pdf",
        "LastChangeDate": "2024-06-25T13:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6048",
        "Identifier": "SOM02.2_SVOC",
        "Context": "USEPA",
        "Name": "Semivolatile organics in water and soil by GC\MS",
        "Description": "EPA Superfund Organic Methods 2.2",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-03\documents\som22d.pdf",
        "LastChangeDate": "2024-06-25T13:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6045",
        "Identifier": "SOM02.2_TRVOC",
        "Context": "USEPA",
        "Name": "Trace concentrations of volatile organics in water by purge-and-trap, GC\MS",
        "Description": "EPA Superfund Organic Methods 2.2",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-03\documents\som22d.pdf",
        "LastChangeDate": "2024-06-25T13:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6047",
        "Identifier": "SOM02.2_VOC",
        "Context": "USEPA",
        "Name": "Volatile organics in water and soil by purge-and-trap, GC\MS",
        "Description": "EPA Superfund Organic Methods 2.2",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2015-03\documents\som22d.pdf",
        "LastChangeDate": "2024-06-25T13:44:13 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4962",
        "Identifier": "SPARROW (SOFT)",
        "Context": "USDOI\USGS",
        "Name": "SPARROW, SPAtially Referenced Regression on Watershed (software)",
        "Description": "SPARROW, SPAtially Referenced Regression on Watershed Attributes (software) ~ USGS NAWQA . Preston, S.D., and Alexander, R.B.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11933\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4963",
        "Identifier": "SPARROW (WEB)",
        "Context": "USDOI\USGS",
        "Name": "SPARROW, SPAtially Referenced Regression on Watershed (website)",
        "Description": "SPARROW, SPAtially Referenced Regression on Watershed Attributes (website) ~ USGS NAWQA . Preston, S.D., and Alexander, R.B.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11965\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5071",
        "Identifier": "SPATIAL SURVEY",
        "Context": "USEPA",
        "Name": "spsurvey: Spatial Survey Design and Analysis ~ EPA ; Kincaid, T. and Olsen, A.R.",
        "Description": "spsurvey: Spatial Survey Design and Analysis ~ EPA . Kincaid, T. and Olsen, A.R.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11950\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4964",
        "Identifier": "SPMD DATA COLLECTION",
        "Context": "USDOI\USGS",
        "Name": "Passive monitoring for organic contaminants in water using semipermeable membrane devices (SPMDs)",
        "Description": "SPMD Data Collection ~ USGS . Passive monitoring for organic contaminants in water using semipermeable membrane devices (SPMDs)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9915\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4965",
        "Identifier": "SPMDS",
        "Context": "USDOI\USGS",
        "Name": "Passive sampling of organic compounds in water, air, and soil\sediment by SPMDs",
        "Description": "SPMDs ~ USGS . Passive sampling of organic compounds in water, air, and soil\sediment by SPMDs",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9973\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5563",
        "Identifier": "SPMM",
        "Context": "NZME-NIWA",
        "Name": "Stream Periphyton Monitoring Manual",
        "Description": "https:\\www.niwa.co.nz\freshwater\management-tools\ecological-monitoring\stream-periphyton-monitoring-manual",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-09-09T13:30:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2849",
        "Identifier": "SR-01",
        "Context": "USEPA",
        "Name": "Radiostrontium in Food Ash and Solids",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1273",
        "Identifier": "SR-01(A)",
        "Context": "USDOE\EML",
        "Name": "SR-01 A  ~ Strontium",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1274",
        "Identifier": "SR-01(SCN)",
        "Context": "USDOE\EML",
        "Name": "SR-01 SCN  ~ Strontium-89",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1275",
        "Identifier": "SR-02",
        "Context": "USDOE\EML",
        "Name": "SR-02 ~ Strontium-90",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2850",
        "Identifier": "SR-02",
        "Context": "USEPA",
        "Name": "SR-02 ~ Radiostrontium in Milk",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2851",
        "Identifier": "SR-03",
        "Context": "USEPA",
        "Name": "Strontium-90 in Urine",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4744",
        "Identifier": "SR-03-RC",
        "Context": "USDOE\EML",
        "Name": "SR-03 RC ~ Strontium-90 in Environmental Matrices",
        "Description": "Sr-03-RC ~ DOE EML . Strontium-90 in Environmental Matrices",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4850\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2852",
        "Identifier": "SR-04",
        "Context": "USEPA",
        "Name": "Radiostrontium in Aqueous Media",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4745",
        "Identifier": "SR-04-RC",
        "Context": "USDOE\EML",
        "Name": "SR-04 RC ~ Strontium-90 in Water Containing Other Radioisotopes by Cerenkov Counting",
        "Description": "Sr-04-RC ~ DOE EML . Strontium-90 in Water Containing Other Radioisotopes by Cerenkov Counting",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4851\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6200",
        "Identifier": "SSM01",
        "Context": "USDOI\USGS",
        "Name": "THORIUM-232, WU,ALPHA (EBERLINE)",
        "Description": "Thorium-232, water, unfiltered, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5215",
        "Identifier": "STATISTICAL METHODS",
        "Context": "NIWA",
        "Name": "Using Statistical Methods for Water Quality Management ~ NIWA ; McBride, Graham B.",
        "Description": "Using Statistical Methods for Water Quality Management ~ NIWA . McBride, Graham B.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11946\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5073",
        "Identifier": "STATISTICAL PRIMER",
        "Context": "USEPA",
        "Name": "Statistical Primer ~ EPA ; U.S. Environmental Protection and Leska Fore",
        "Description": "Statistical Primer ~ EPA . U.S. Environmental Protection and Leska Fore",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11936\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4956",
        "Identifier": "STATISTICS (PROGRAM)",
        "Context": "USDOI\USGS",
        "Name": "OPR-PPR, a Computer Program for Assessing Data Importance to Model Predictions Using Linear Statistics (program) ",
        "Description": "OPR-PPR, a Computer Program for Assessing Data Importance to Model Predictions Using Linear Statistics (program) ~ USGS . Tonkin, M.J., Tiedeman C. R., Ely D.M., and Hill M.C.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11394\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4957",
        "Identifier": "STATISTICS (REPORT)",
        "Context": "USDOI\USGS",
        "Name": "OPR-PPR, a Computer Program for Assessing Data Importance to Model Predictions Using Linear Statistics (report)",
        "Description": "OPR-PPR, a Computer Program for Assessing Data Importance to Model Predictions Using Linear Statistics (report) ~ USGS . Tonkin, M.J., Tiedeman C. R., Ely D.M., and Hill M.C.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11923\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5229",
        "Identifier": "STATISTICS FOR ESM",
        "Context": "WEST INC",
        "Name": "Statistics for Environmental Science and Management ~ WEST Inc ",
        "Description": "Statistics for Environmental Science and Management ~ WEST Inc . Manly, Bryan F.J.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11948\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5742",
        "Identifier": "STI 001",
        "Context": "SYAGEN",
        "Name": "STI 001, molecular analysis instruments",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:56:59 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5095",
        "Identifier": "STORM DISCHARGE EST",
        "Context": "USDA",
        "Name": "Estimating storm discharge and water quality data uncertainty: A software tool",
        "Description": "Estimating storm discharge and water quality data uncertainty: A software tool for monitoring and modeling applications. ~ USDA-ARS . Harmel, R.D., D.R. Smith, K.W. King, and R.M. Slade",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11940\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4960",
        "Identifier": "STREAM HABITAT",
        "Context": "USDOI\USGS",
        "Name": "Revised Methods for Characterizing Stream Habitat in the National Water-Quality Assessment Program",
        "Description": "Revised Methods for Characterizing Stream Habitat in the National Water-Quality Assessment Program ~ USGS NAWQA . Fitzpatrick, F.A., Waite, I.R., D'Arconte, P.J., Meador, M.R., Maupin, M.A., and Gurtz, M.E.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11935\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4748",
        "Identifier": "STREAM METABOLISM",
        "Context": "USDOI\USGS",
        "Name": "Automated Routines for Calculating Whole-Stream Metabolism: Theoretical Background and User Guide",
        "Description": "Automated Routines for Calculating Whole-Stream Metabolism: Theoretical Background and User's Guide ~ USGS . Bales, J.D., and Nardi, M.R.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11930\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4967",
        "Identifier": "STREAM METABOLSM PRG",
        "Context": "USDOI\USGS",
        "Name": "Stream Metabolism Program",
        "Description": "Stream Metabolism Program ~ USGS . Bales, J.D., and Nardi, M.R.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11931\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5223",
        "Identifier": "SWAN AMI TURBIWELL",
        "Context": "SWAN ANALYTISCHE",
        "Name": "Turbidity of water by Turbidimeter",
        "Description": "SWAN AMI Turbiwell ~ SWAN Analytische . Turbidity of water by Turbidimeter",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10618\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5758",
        "Identifier": "Samp-U",
        "Context": "USDOE\EML",
        "Name": "Uranium and Radium in Water",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "770763",
        "Identifier": "Stack Sampling",
        "Context": "PACE LABS",
        "Name": "Stack Sampling",
        "Description": "https:\\www.pacelabs.com\assets\documents\Environmental\capabilities-2015.pdf",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2019-06-24T09:29:19 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5074",
        "Identifier": "T2 MYCO",
        "Context": "USEPA",
        "Name": "Mycotoxin (T-2) by LC\APCI-MS",
        "Description": "T2 Myco ~ EPA-OW . Mycotoxin (T-2) by LC\APCI-MS",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10931\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "890",
        "Identifier": "TB_253",
        "Context": "NCASI",
        "Name": "Measurement of Water Color",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1276",
        "Identifier": "TC-01",
        "Context": "USDOE\EML",
        "Name": "Technetium-99",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4746",
        "Identifier": "TC-02-RC",
        "Context": "USDOE\EML",
        "Name": "TC-02 RC ~ Technetium-99 in Water - TEVA Resin",
        "Description": "Tc-02-RC ~ DOE EML . Technetium-99 in Water - TEVA Resin",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4852\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5075",
        "Identifier": "TEST METHOD 100.1",
        "Context": "USEPA",
        "Name": "10-d Survival and Growth Test for Sediments using Hyallela azteca",
        "Description": "Test Method 100.1 ~ EPA-ORD \ EPA-OST . 10-d Survival and Growth Test for Sediments using Hyallela azteca",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9325\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5076",
        "Identifier": "TEST METHOD 100.3",
        "Context": "USEPA",
        "Name": "Bioaccumulation Test for Sediments Using Lumbriculus variegatus",
        "Description": "Test Method 100.3 ~ EPA-ORD \ EPA-OST . Bioaccumulation Test for Sediments Using Lumbriculus variegatus",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9300\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5077",
        "Identifier": "TEST METHOD 100.5",
        "Context": "USEPA",
        "Name": "Life Cycle Test for Measuring the Effects of Sediment-associated Contaminants on Midge (Chironomus tentans)",
        "Description": "Test Method 100.5 ~ EPA-ORD \ EPA-OST . Life Cycle Test for Measuring the Effects of Sediment-associated Contaminants on Midge (Chironomus tentans)",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9323\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5078",
        "Identifier": "TEST METHOD 1000.0",
        "Context": "USEPA",
        "Name": "Larval Survival and Growth Test using Fathead Minnow",
        "Description": "Test Method 1000.0 ~ EPA-OW . Larval Survival and Growth Test using Fathead Minnow",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9320\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5254",
        "Identifier": "TEST METHOD 1001.0",
        "Context": "USEPA",
        "Name": "Embryo-larval survival and teratogenicity test using Fathead minnow <i>Pimephales promelas<\i>",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9939\",
        "LastChangeDate": "2014-01-14T23:55:09 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5079",
        "Identifier": "TEST METHOD 1002.0",
        "Context": "USEPA",
        "Name": "Survival and Reproduction Test using Daphnids",
        "Description": "Test Method 1002.0 ~ EPA-OW . Survival and Reproduction Test using Daphnids",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9321\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5080",
        "Identifier": "TEST METHOD 1003.0",
        "Context": "USEPA",
        "Name": "Green Algae, Selenastrum capricornutum, Growth Test.",
        "Description": "Test Method 1003.0 ~ EPA-OW . Green Algae, Selenastrum capricornutum, Growth Test.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9316\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5081",
        "Identifier": "TEST METHOD 1004.0",
        "Context": "USEPA",
        "Name": "Larval Survival and Growth Test using Sheepshead Minnow",
        "Description": "Test Method 1004.0 ~ EPA-OW . Larval Survival and Growth Test using Sheepshead Minnow",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9303\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5082",
        "Identifier": "TEST METHOD 1006.0",
        "Context": "USEPA",
        "Name": "Larval Survival and Growth Test for Waters Using Inland Silverside",
        "Description": "Test Method 1006.0 ~ EPA-OW . Larval Survival and Growth Test for Waters Using Inland Silverside",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9302\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5083",
        "Identifier": "TEST METHOD 2000.0",
        "Context": "USEPA",
        "Name": "Acute Toxicity Test for Waters Using Fathead Minnow",
        "Description": "Test Method 2000.0 ~ EPA-OW . Acute Toxicity Test for Waters Using Fathead Minnow",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9297\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5084",
        "Identifier": "TEST METHOD 2002.0",
        "Context": "USEPA",
        "Name": "Acute Toxicity Tests with Effluents and Receiving Waters using Ceriodaphnia dubia",
        "Description": "Test Method 2002.0 ~ EPA-OW . Acute Toxicity Tests with Effluents and Receiving Waters using Ceriodaphnia dubia",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9319\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5085",
        "Identifier": "TEST METHOD 2004.0",
        "Context": "USEPA",
        "Name": "Acute Toxicity Tests with Effluents and Receiving Waters using Sheepshead minnow",
        "Description": "Test Method 2004.0 ~ EPA-OW . Acute Toxicity Tests with Effluents and Receiving Waters using Sheepshead minnow",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9324\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5086",
        "Identifier": "TEST METHOD 2006.0",
        "Context": "USEPA",
        "Name": "Acute Toxicity Tests with Effluents and Receiving Waters using the Silverside",
        "Description": "Test Method 2006.0 ~ EPA-OW . Acute Toxicity Tests with Effluents and Receiving Waters using the Silverside",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9315\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5087",
        "Identifier": "TEST METHOD 2019.0",
        "Context": "USEPA",
        "Name": "Acute Toxicity Tests for Waters Using Rainbow Trout and Brook Trout",
        "Description": "Test Method 2019.0 ~ EPA-OW . Acute Toxicity Tests for Waters Using Rainbow Trout and Brook Trout",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9304\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5088",
        "Identifier": "TEST METHOD 2021.0",
        "Context": "USEPA",
        "Name": "Acute Toxicity Tests with Effluents and Receiving Waters using Daphnia",
        "Description": "Test Method 2021.0 ~ EPA-OW . Acute Toxicity Tests with Effluents and Receiving Waters using Daphnia",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9322\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1277",
        "Identifier": "TH-01",
        "Context": "USDOE\EML",
        "Name": "TH-01 ~ Thorium in Urine",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2853",
        "Identifier": "TH-01",
        "Context": "USEPA",
        "Name": "TH-01 ~ Thorium-234 Tracer Solution",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6201",
        "Identifier": "THM01",
        "Context": "USDOI\USGS",
        "Name": "GROSS ALPHA, U(NATURAL), SUS SED",
        "Description": "Uranium Curve, Gross Alpha, SUS",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:55 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6202",
        "Identifier": "THM02",
        "Context": "USDOI\USGS",
        "Name": "URANIUM-234, BED SED,ALPHA (STL)",
        "Description": "Uranium-234, bed sediment, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:56 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6203",
        "Identifier": "THM04",
        "Context": "USDOI\USGS",
        "Name": "URANIUM-234, SUS SED,ALPHA (STL)",
        "Description": "Uranium-234, suspended sediment, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:56 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6204",
        "Identifier": "THM05",
        "Context": "USDOI\USGS",
        "Name": "URANIUM-234, WF, ALPHA SPEC",
        "Description": "Uranium-234, Water, Filtered, by Alpha Spectrometry",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:56 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5220",
        "Identifier": "THODS FOR ECOLOGISTS",
        "Context": "OK ST U",
        "Name": "Ordination Methods for Ecologists ~ Ok St U ; Palmer, M.",
        "Description": "Ordination Methods for Ecologists ~ Ok St U . Palmer, M.",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11947\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5861",
        "Identifier": "TM1-D5 Data Collection",
        "Context": "USDOI\USGS",
        "Name": "Data Collection Procedures for Optical Nitrate Sensors",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5865",
        "Identifier": "TM1-D5 Data Processing",
        "Context": "USDOI\USGS",
        "Name": "TM1-D5 Data Processing",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5866",
        "Identifier": "TM1-D5 Instrument Deployment",
        "Context": "USDOI\USGS",
        "Name": "TM1-D5 Instrument Deployment",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5867",
        "Identifier": "TM1-D5 Maintenance and Field",
        "Context": "USDOI\USGS",
        "Name": "TM1-D5 Maintenance and Field",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5868",
        "Identifier": "TM1-D5 Sensor Selection",
        "Context": "USDOI\USGS",
        "Name": "TM1-D5 Sensor Selection",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2854",
        "Identifier": "TO-1",
        "Context": "USEPA",
        "Name": "Volatile Nonpolar Organics in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2855",
        "Identifier": "TO-10",
        "Context": "USEPA",
        "Name": "Organochlorine Pesticides in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2856",
        "Identifier": "TO-11",
        "Context": "USEPA",
        "Name": "Formaldehyde in Ambient Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2857",
        "Identifier": "TO-12",
        "Context": "USEPA",
        "Name": "Non-Methane Organic in Ambient Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2858",
        "Identifier": "TO-13",
        "Context": "USEPA",
        "Name": "Benzo(a)Pyrene and PAHs - Ambient Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6110",
        "Identifier": "TO-13A",
        "Context": "USEPA",
        "Name": "DETERMINATION OF TOXIC ORGANIC COMPOUNDS IN AMBIENT AIR",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\www.epa.gov\sites\default\files\2019-11\documents\to-13arr.pdf",
        "LastChangeDate": "2026-03-13T19:43:49 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2859",
        "Identifier": "TO-14",
        "Context": "USEPA",
        "Name": "Volatile Organics in Air by GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6111",
        "Identifier": "TO-14A",
        "Context": "USEPA",
        "Name": "DETERMINATION OF TOXIC ORGANIC COMPOUNDS IN AMBIENT AIR",
        "Description": "",
        "QualifierType": "",
        "URL": "https:\\nepis.epa.gov\Exe\ZyPDF.cgi\P100Y8E8.PDF?Dockey=P100Y8E8.PDF",
        "LastChangeDate": "2026-03-13T19:43:50 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2860",
        "Identifier": "TO-14B",
        "Context": "USEPA",
        "Name": "TO-14B ~ Volatile Organics by Portable GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "3039",
        "Identifier": "TO-15",
        "Context": "USEPA",
        "Name": "TO-15 ~ Determination Of Volatile Organic Compounds In Air, Specially-PreparedCanisters(GC\MS)",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-04-02T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "797393",
        "Identifier": "TO-15-SIM",
        "Context": "USEPA",
        "Name": "Determination of VOCs in Air Collected In Specially-Prepared Canisters and Analyzed by GC\MS Using SIM",
        "Description": "https:\\alphalab.com\index.php\to-15-method#:~:text=In%202009%2C%20EPA%20Method%20TO,magnitude%20drop%20in%20reporting%20limits",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2020-08-19T00:27:45 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5536",
        "Identifier": "TO-16",
        "Context": "USEPA",
        "Name": "Long-Path Open-Path Fourier Transform Infrared Monitoring of Atmospheric Gases",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-03-09T12:25:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5537",
        "Identifier": "TO-17",
        "Context": "USEPA",
        "Name": "Determination of Volatile Organic Compounds in Ambient Air Using Active Sampling Onto Sorbent Tubes",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2016-03-09T12:25:51 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2861",
        "Identifier": "TO-2",
        "Context": "USEPA",
        "Name": "Highly Volatile Nonpolar Organics",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2862",
        "Identifier": "TO-3",
        "Context": "USEPA",
        "Name": "Volatile Nonpolar Organics in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2863",
        "Identifier": "TO-4",
        "Context": "USEPA",
        "Name": "O-C Pesticides and PCB - Ambient Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2864",
        "Identifier": "TO-5",
        "Context": "USEPA",
        "Name": "Aldehydes and Ketones in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2865",
        "Identifier": "TO-6",
        "Context": "USEPA",
        "Name": "Phosgene Determination in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2866",
        "Identifier": "TO-7",
        "Context": "USEPA",
        "Name": "N-Nitrosodimethylamine in Air",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2867",
        "Identifier": "TO-8",
        "Context": "USEPA",
        "Name": "Cresols and Phenols in Air by HPLC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2868",
        "Identifier": "TO-9",
        "Context": "USEPA",
        "Name": "Dioxin in Air by HRGC\HRMS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "797392",
        "Identifier": "TO15***retired*** TO-15",
        "Context": "USEPA",
        "Name": "DO NOT USE***TO-15 ~ Determination of Volatile Organic Compounds in Air Collected In Specially-Prepared Canisters and Analyzed by GC\MS",
        "Description": "DO NOT USE ~ https:\\www3.epa.gov\ttn\amtic\files\ambient\airtox\to-15r.pdf",
        "QualifierType": "duplicate records",
        "URL": "",
        "LastChangeDate": "2022-04-01T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5090",
        "Identifier": "TOXG",
        "Context": "USEPA",
        "Name": "Toxoplasma gondii (ToxG) by Real-Time-PCR",
        "Description": "ToxG ~ EPA-OW . Toxoplasma gondii (ToxG) by Real-Time-PCR",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\11013\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6205",
        "Identifier": "TS098",
        "Context": "USDOI\USGS",
        "Name": "URANIUM-234, WU,ALPHA SPEC (STL)",
        "Description": "Uranium-234, water, unfiltered @ 0.1 pCi\L, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:56 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6206",
        "Identifier": "TT013",
        "Context": "USDOI\USGS",
        "Name": "URANIUM-234, BS,ALPHA (EBERLINE)",
        "Description": "Uranium-234, bed sediment, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:56 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6207",
        "Identifier": "TT017",
        "Context": "USDOI\USGS",
        "Name": "URANIUM-234, SS,ALPHA (EBERLINE)",
        "Description": "Uranium-234, suspended sediment, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:56 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6208",
        "Identifier": "TT019",
        "Context": "USDOI\USGS",
        "Name": "URANIUM-234, WU,ALPHA (EBERLINE)",
        "Description": "Uranium-234, water, unfiltered, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:56 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6209",
        "Identifier": "TT023",
        "Context": "USDOI\USGS",
        "Name": "URANIUM-235, BED SED,ALPHA (STL)",
        "Description": "Uranium-235, bed sediment, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:56 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6210",
        "Identifier": "TT040",
        "Context": "USDOI\USGS",
        "Name": "URANIUM-235, SUS SED,ALPHA (STL)",
        "Description": "Uranium-235, suspended sediment, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:56 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6211",
        "Identifier": "TT057",
        "Context": "USDOI\USGS",
        "Name": "URANIUM-235, WF, ALPHA (NWQL)",
        "Description": "Uranium-235, water, filtered, by alpha spectrometry (analysis by NWQL)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:56 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6212",
        "Identifier": "TT061",
        "Context": "USDOI\USGS",
        "Name": "URANIUM-235, WU,ALPHA SPEC (STL)",
        "Description": "Uranium-235, water, unfiltered @ 0.1 pCi\L, by alpha spectrometry (analysis by Severn-Trent Laboratory)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:56 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4968",
        "Identifier": "TWRI (SUSP SED CONC)",
        "Context": "USDOI\USGS",
        "Name": "Suspended-sediment concentration in water by filtration or evaporation",
        "Description": "TWRI BK 5 CH1 (Susp Sed Conc) ~ USGS . Suspended-sediment concentration in water by filtration or evaporation",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9836\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4969",
        "Identifier": "TWRI (SUSP SED FINE)",
        "Context": "USDOI\USGS",
        "Name": "Suspended sediment particle size distribution in water by pipet and BW tube",
        "Description": "TWRI BK 5 CH1 (Susp Sed Fine) ~ USGS . Suspended sediment particle size distribution in water by pipet and BW tube",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9840\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4970",
        "Identifier": "TWRI (SUSP SED SAND)",
        "Context": "USDOI\USGS",
        "Name": "Suspended sediment particle size distribution in water by sieve and VA tube analysis",
        "Description": "TWRI BK 5 CH1 (Susp Sed Sand) ~ USGS . Suspended sediment particle size distribution in water by sieve and VA tube analysis",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9839\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5863",
        "Identifier": "TWRI BK 9 CH A5.6.4.A",
        "Context": "USDOI\USGS",
        "Name": "Arsenic Speciation in Water Sample Processing",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5862",
        "Identifier": "TWRI BK 9 CH A5.6.4.B",
        "Context": "USDOI\USGS",
        "Name": "Low-level Mercury in Water Sample Processing",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2021-10-04T13:57:07 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5235",
        "Identifier": "TWRI Book 9",
        "Context": "USDOI\USGS",
        "Name": "Techniques of Water-Resources Investigations Reports",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2013-11-15T13:44:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2869",
        "Identifier": "U-01",
        "Context": "USEPA",
        "Name": "U-01 ~ Uranium-232 Tracer Solution",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1278",
        "Identifier": "U-01(ASP)",
        "Context": "USDOE\EML",
        "Name": "U-01 ASP  ~ Uranium in Urine",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1279",
        "Identifier": "U-01(F)",
        "Context": "USDOE\EML",
        "Name": "U-01 F  ~ Uranium in Urine",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1280",
        "Identifier": "U-02",
        "Context": "USDOE\EML",
        "Name": "Isotopic Uranium",
        "Description": "https:\\www.nemi.gov\methods\method_summary\4853\",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4747",
        "Identifier": "U-02-RC",
        "Context": "USDOE\EML",
        "Name": "U-02 RC ~ Isotopic Uranium in Biological and Environmental Materials",
        "Description": "U-02-RC ~ DOE EML . Isotopic Uranium in Biological and Environmental Materials",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\4853\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1281",
        "Identifier": "U-03",
        "Context": "USDOE\EML",
        "Name": "Isotopic Uranium",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "1282",
        "Identifier": "U-04",
        "Context": "USDOE\EML",
        "Name": "Uranium",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4971",
        "Identifier": "UII",
        "Context": "USDOI\USGS",
        "Name": "Urban Intensity Index (UII)",
        "Description": "Urban Intensity Index (UII) ~ USGS NAWQA . McMahon, G. and Cuffney, T.F",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11934\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5097",
        "Identifier": "USDA HWQ1",
        "Context": "USDA",
        "Name": "Cumulative Uncertainty in Discharge and Water Quality Data",
        "Description": "USDA HWQ1 ~ USDA-ARS . Cumulative Uncertainty in Discharge and Water Quality Data",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9509\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5098",
        "Identifier": "USDA HWQ2",
        "Context": "USDA",
        "Name": "Discharge and Water Quality Data Collection on Small Watersheds",
        "Description": "USDA HWQ2 ~ USDA-ARS . Discharge and Water Quality Data Collection on Small Watersheds",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9503\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5099",
        "Identifier": "USDA HWQ3",
        "Context": "USDA",
        "Name": "Automated Storm Water Sampling",
        "Description": "USDA HWQ3 ~ USDA-ARS . Automated Storm Water Sampling",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9510\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5100",
        "Identifier": "USDA HWQ4",
        "Context": "USDA",
        "Name": "Estimating Uncertainty in Measured Discharge and Water Quality Data",
        "Description": "USDA HWQ4 ~ USDA-ARS . Estimating Uncertainty in Measured Discharge and Water Quality Data",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\10995\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6213",
        "Identifier": "UV002",
        "Context": "USDOI\USGS",
        "Name": "URANIUM-235, BS,ALPHA (EBERLINE)",
        "Description": "Uranium-235, bed sediment, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:56 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6266",
        "Identifier": "UV006",
        "Context": "USDOI\USGS",
        "Name": "UV Absorbers, 254nm, SuporFilter",
        "Description": "UV Absorbing Organic Constituents - 254 nm, Filtered, Supor Filter",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2026-04-17T20:27:30 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2870",
        "Identifier": "VA-001-1",
        "Context": "USEPA",
        "Name": "VOCs in Air by GC of Sorbent Tubes",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2871",
        "Identifier": "VA-002-1",
        "Context": "USEPA",
        "Name": "Halogenated VOCs in Air by GC\ELCD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2872",
        "Identifier": "VA-003-1",
        "Context": "USEPA",
        "Name": "VOCs in Air by Portable GC\PID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2873",
        "Identifier": "VA-004-1",
        "Context": "USEPA",
        "Name": "Halogenated VOCs in Air by Direct GC\EC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2874",
        "Identifier": "VA-005-1",
        "Context": "USEPA",
        "Name": "VOCs in Air by Purge and Trap GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2875",
        "Identifier": "VA-006-1",
        "Context": "USEPA",
        "Name": "VOCs in Ambient Air by Portable GC\PID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2876",
        "Identifier": "VA-007-1",
        "Context": "USEPA",
        "Name": "VOCs in Ambient Air by Direct GC\PID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2877",
        "Identifier": "VA-008-1",
        "Context": "USEPA",
        "Name": "VOCs in Air by Automated Portable GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2878",
        "Identifier": "VG-001-1",
        "Context": "USEPA",
        "Name": "VOCs in Soil Gas by Adsorbent Tube",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2879",
        "Identifier": "VG-002-1",
        "Context": "USEPA",
        "Name": "Halogenated VOCs in Soil Gas by GC\ELCD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2880",
        "Identifier": "VG-003-1",
        "Context": "USEPA",
        "Name": "Halogenated VOCs in Soil Gas by GC\EC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2881",
        "Identifier": "VG-004-1",
        "Context": "USEPA",
        "Name": "Halogenated VOCs in Soil Gas by GC\ECD",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2882",
        "Identifier": "VG-005-1",
        "Context": "USEPA",
        "Name": "Halogenated VOCs in Soil Gas by GC\PID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2883",
        "Identifier": "VG-006-1",
        "Context": "USEPA",
        "Name": "VOCs in Soil Gas by Purge and Trap GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2884",
        "Identifier": "VG-007-1",
        "Context": "USEPA",
        "Name": "VOCs in Air by Thermal Desorption GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2885",
        "Identifier": "VG-008-1",
        "Context": "USEPA",
        "Name": "VOCs in Soil Gas by GC of Sorbent Tubes",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2886",
        "Identifier": "VG-009-1",
        "Context": "USEPA",
        "Name": "VOCs in Soil Gas by Direct GC\PID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2887",
        "Identifier": "VG-010-1(ECD)",
        "Context": "USEPA",
        "Name": "VG-010-1 ECD  ~ VOCs in Soil Gas by Portable GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2888",
        "Identifier": "VG-010-1(PID)",
        "Context": "USEPA",
        "Name": "VG-010-1 PID  ~ VOCs in Soil Gas by Portable GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2889",
        "Identifier": "VG-011-1",
        "Context": "USEPA",
        "Name": "VOCs in Gas by Purge and Trap GC\ELCD\PID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2890",
        "Identifier": "VS-001-1",
        "Context": "USEPA",
        "Name": "VOCs in Soil by Purge and Trap GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2891",
        "Identifier": "VS-002-1",
        "Context": "USEPA",
        "Name": "VOCs in Soil by Automated Headspace GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2892",
        "Identifier": "VS-003-1",
        "Context": "USEPA",
        "Name": "VOCs in Soil by GC\ECD of Extract",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2893",
        "Identifier": "VS-004-1",
        "Context": "USEPA",
        "Name": "VOCs in Soil by GC\FID of CS2 Extracts",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2894",
        "Identifier": "VS-005-1",
        "Context": "USEPA",
        "Name": "VOCs in Soil by Headspace GC\PID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2895",
        "Identifier": "VS-006-1",
        "Context": "USEPA",
        "Name": "VOCs in Water\Soil by Purge and Trap GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2896",
        "Identifier": "VW-001-1",
        "Context": "USEPA",
        "Name": "VOCs in Water by Purge and Trap GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2897",
        "Identifier": "VW-002-1",
        "Context": "USEPA",
        "Name": "VOCs in Water by Automated Headspace GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2898",
        "Identifier": "VW-003-1",
        "Context": "USEPA",
        "Name": "VOCs in Water by Automated Headspace GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2899",
        "Identifier": "VW-004-1",
        "Context": "USEPA",
        "Name": "VOCs in Water by Manual Headspace GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2900",
        "Identifier": "VW-005-1",
        "Context": "USEPA",
        "Name": "VOCs in Water by GC\ECD of Extracts",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2901",
        "Identifier": "VW-006-1",
        "Context": "USEPA",
        "Name": "VOCs in Water by GC\FID of CS2 Extracts",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2902",
        "Identifier": "VW-007-1",
        "Context": "USEPA",
        "Name": "VOCs in Water by Headspace GC\PID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2903",
        "Identifier": "VW-008-1",
        "Context": "USEPA",
        "Name": "VOCs in Water by Purge and Trap GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2904",
        "Identifier": "VW-010-1(S)",
        "Context": "USEPA",
        "Name": "VW-010-1 S  ~ VOCs in Water\Soil by Headspace GC\PID",
        "Description": " in Water\Sediment",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2905",
        "Identifier": "VW-010-1(W)",
        "Context": "USEPA",
        "Name": "VW-010-1 W  ~ VOCs in Water\Soil by Headspace GC\PID",
        "Description": " in Water",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2906",
        "Identifier": "VW-011-1",
        "Context": "USEPA",
        "Name": "VOCs in Water\Soil by Purge and Trap GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2907",
        "Identifier": "VW-012-1",
        "Context": "USEPA",
        "Name": "VOCs in Water\Soil by Purge and Trap GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2908",
        "Identifier": "VW-013-1",
        "Context": "USEPA",
        "Name": "VOCs in Water\Soil by Headspace GC\FID",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2909",
        "Identifier": "VW-014-1",
        "Context": "USEPA",
        "Name": "VOCs in Water by Purge and Trap GC",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4972",
        "Identifier": "WARP",
        "Context": "USDOI\USGS",
        "Name": "Watershed Regressions for Pesticides (WARP)",
        "Description": "Watershed Regressions for Pesticides (WARP) ~ USGS NAWQA . US Geological Survey",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11962\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6214",
        "Identifier": "WHT03",
        "Context": "USDOI\USGS",
        "Name": "URANIUM-235, SS,ALPHA (EBERLINE)",
        "Description": "Uranium-235, suspended sediment, by alpha spectrometry (analysis by Eberline Services)",
        "QualifierType": "",
        "URL": "https:\\water.usgs.gov\XML\NWIS\4.10\ReferenceLists\MethodList.html",
        "LastChangeDate": "2026-03-13T19:43:56 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "5228",
        "Identifier": "WI DNR BMI KICK",
        "Context": "WDNR FISH HABITAT",
        "Name": "Guidelines for Collecting Macroinvertebrate Samples from Wadable Streams in Wisconsin",
        "Description": "WI DNR BMI Kick ~ WDNR Fish Habitat . Guidelines for Collecting Macroinvertebrate Samples from Wadable Streams in Wisconsin",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\method_summary\9504\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "4973",
        "Identifier": "WRTDS",
        "Context": "USDOI\USGS",
        "Name": "Weighted Regressions on Time, Discharge, and Season (WRTDS), with an Application to Chesapeake Bay River Inputs",
        "Description": "Weighted Regressions on Time, Discharge, and Season (WRTDS), with an Application to Chesapeake Bay River Inputs ~ USGS . Hirsch, R.M., Moyer, D.L., and Archfield, S.A",
        "QualifierType": "",
        "URL": "https:\\www.nemi.gov\methods\sams_method_summary\11929\",
        "LastChangeDate": "2013-07-31T00:00:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "6240",
        "Identifier": "Walkley-Black",
        "Context": "USEPA",
        "Name": "Dichromate oxidation method",
        "Description": "Appropriate for determining the low concentrations of organic carbon expected in subsurface soils.",
        "QualifierType": "",
        "URL": "https:\\semspub.epa.gov\work\05\424375.pdf",
        "LastChangeDate": "2026-03-26T09:10:26 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "19266",
        "Identifier": "Water Sampling Device",
        "Context": "WQXTEST",
        "Name": "Water Sampling Device ~ MassWateR; Device for Water Sample Collection at Depth",
        "Description": "Reference:  https:\\www.astm.org\d1946-90r19.html",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2022-12-12T18:20:48 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2912",
        "Identifier": "XENO",
        "Context": "USEPA",
        "Name": "Xenobiotic Contaminants in Fish",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2910",
        "Identifier": "X_89_176(N)",
        "Context": "USEPA",
        "Name": "X_89_176 N  ~ Chlorinated Herbicides by LC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }

,       {
        "Domain": "Analytical Method(MethodIdentifier)",
        "UID": "2911",
        "Identifier": "X_89_176(P)",
        "Context": "USEPA",
        "Name": "X_89_176 P  ~ Chlorinated Herbicides by LC\MS",
        "Description": "",
        "QualifierType": "",
        "URL": "",
        "LastChangeDate": "2006-08-12T23:50:00 AMERICA/NEW_YORK"
        }


            ]
	}
}