ASTM D4556-02被替代
Standard Guide for Selecting Stream-Net Sampling Devices for Collecting Benthic Macroinvertebrates
出版：American Society for Testing and Materials
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基本信息
标准编号： ASTM D4556-02
发布时间：2002/4/10 0:00:00
标准类别：Standard
出版单位：American Society for Testing and Materials
标准页数：9
标准简介
CONTAINED IN VOL. 11.05, 2001Specifies 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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