ASTM-D4134 › Complete Document History
Standard Practice for Sampling Phytoplankton with a Clarke-Bumpus Plankton Sampler (Withdrawn 2020)


Obsolete Revision Information:
   WITHDRAWN - WITHDRAWN WITHOUT SUPERSREDING DOCUMENT - May 13, 2020
   1982 R12 EDITION - REAPPROVED IN 2012 - Oct. 15, 2012
   1982 R04 EDITION - REAPPROVED IN 2004 - Jan. 1, 2004
   1982 R98 EDITION - REAPPROVED IN 1998 - May 28, 1982
   1982 EDITION - SAMPLING PHYTOPLANKTON WITH A - May 28, 1982