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Standard Guide for Selecting Stream-Net Sampling Devices for Collecting Benthic Macroinvertebrates (Withdrawn 2003)
Automaticky preložený názov:
Štandardné Sprievodca pre výber Stream - Net vzorkovania zariadenie pre odber makrozoobentosu ( Withdrawn 2003 )
NORMA vydaná dňa 10.4.2002
Označenie normy: ASTM D4556-02
Poznámka: NEPLATNÁ
Dátum vydania normy: 10.4.2002
Kód tovaru: NS-27692
Počet strán: 9
Približná hmotnosť: 27 g (0.06 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
benthic macroinvertebrates, hess, rivers, shallow streams, stream-bed fauna, stream-net sampling devices, stream bottom, surber, ICS Number Code 07.080 (Biology. Botany. Zoology)
1. Scope |
1.1 The Surber, portable invertebrate box, Hess, Hess stream bottom, and stream-bed fauna samples are qualitative and most are reasonably quantitative collecting devices. They are operated by hand. They provide for outlining a definite unit-area, for collecting the macroinvertebrates within the area, and are equipped with a net to retain organisms. They are designed to be placed by hand onto or in some cases into mud, sand, gravel, or rubble substrate types, in shallow streams, or shallow areas of rivers. 1.2 The drift net sampler is a qualitative and quantitative collecting device used to capture drifting organisms in flowing waters. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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