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1.1 This guide covers selecting grab sampling devices for collecting benthic macroinvertebrates. (See Table 1)
1.2 The grab sampler when used correctly is a quantitative collecting device. It is designed to penetrate and grab or scoop a variety of substrates or sediment types from which macroinvertebrates are collected in freshwater, estuarine, and marine habitats.
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ASTM D4387-02, Standard Guide for Selecting Grab Sampling Devices for Collecitng Benthic Macroinvertebrates (Withdrawn 2003), ASTM International, West Conshohocken, PA, 2002, www.astm.orgBack to Top