ISO-5073 › Complete Document History
Brown coals and lignites - Determination of humic acids

Complete Current Edition:
   4TH EDITION - Determination of humic acids - Dec. 1, 2021

Obsolete Revision Information:
   3RD EDITION - Brown coals and lignites - Determination of humic acids - May 1, 2013
   2ND EDITION - Brown coals and lignites -- Determination of humic acids - Dec. 1, 1999
   1ST EDITION - Brown coals and lignites -- Determination of humic acids - July 15, 1985