ASTM D 4149 : 1982 : R2012
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Standard Classification for Sampling Phytoplankton in Surface Waters (Withdrawn 2020)
Hardcopy , PDF
13-05-2020
English
01-09-2012
CONTAINED IN VOL. 11.06, 2015 Describes qualitative and quantitative techniques used for collection of phytoplankton from inland surface waters. Qualitative samplers include conical tow nets and pumps; quantitative samplers include water sampling bottles, the Clarke Bumpus plankton sampler, Juday plankton trap and depth integrating samplers.
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