                                                                        00000300
                                                                        00000400
  Codes used in the "first" composite sample key (the "AHLN" key)       00000500
                                                                        00000600
     These codes are placed in column 287 of the                        00000610
     further computational file (FCF) under options MORE=4,5 & SAS      00000620
                                                                        00000630
  Codes related to true composites:                                     00000700
                                                                        00000800
  Code as   Code as                                                     00000900
  Stored    Printed   Definition                                        00001000
  -------   -------   ------------------------------------------------- 00001100
    A         AVE     The average of several composited samples.        00001200
                                                                        00001210
    H         MAX     The highest value among several composited        00001300
                      samples.                                          00001400
    L         MIN     The lowest value among several composited         00001500
                      samples.                                          00001600
    N         NUM     The count of a group of several composited        00001700
                      samples. (Equivalent to #)                        00001800
    #         NUM     The count of a group of several composited        00001900
                      samples. (Equivalent to N)                        00002000
    S         SD      The standard deviation of a group of composited   00002110
                      samples.                                          00002200
    C         COF     The coefficient of variance of a group of         00002300
                      composited samples.                               00002400
    F         KUR     The kurtosis of a group of composited             00002500
                      samples.                                          00002600
