ASTM D 4556 : 2002
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Standard Guide for Selecting Stream-Net Sampling Devices for Collecting Benthic Macroinvertebrates (Withdrawn 2003)
Hardcopy , PDF
01-01-2003
English
31-12-2010
CONTAINED IN VOL. 11.05, 2001 Specifies surber, portable invertebrate box, Hess, Hess stream bottom, and stream-bed fauna samples are quantitative, qualitative collecting devices, operated by hand, for outlining a unit-area, collecting the macroinvertebrates within it and retaining them. Can be placed by hand onto or into mud, gravel, sand or rubble substrate types, in shallow streams, areas of rivers. Drift net sampler is a quantitative, qualitative collecting device to drifting organisms in flowing waters.
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