ASTM-D4149 Complete Document History
Standard Classification for Sampling Phytoplankton in Surface Waters (Withdrawn 2020)


Obsolete Revision Information:
   WITHDRAWN - WITHDRAWN WITHOUT SUPERSREDING DOCUMENT - May 14, 2020
   1982 R12 EDITION - REAPPROVED IN 2012 - Nov. 15, 2012
   1982 R04 EDITION - REAPPROVED IN 2004 - Jan. 1, 2004
   1982 EDITION - SAMPLING PHYTOPLANKTON N SURFA - June 25, 1982
   1982 R98 EDITION - REAPPROVED IN 1998 - June 25, 1982