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ASTM D4557-85(1995)
Standard Practice for Collecting Benthic Macroinvertebrates with Surber and Related Type Samplers
Automaticky preložený názov:
Štandardné praktiky pre zhromažďovanie makrozoobentosu s Surber a súvisiaceho typu samplery
NORMA vydaná dňa 1.1.1995
Informácie o norme:
Označenie normy: ASTM D4557-85(1995)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.1.1995
Kód tovaru: NS-27694
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Anotácia textu normy ASTM D4557-85(1995) :
Keywords:
Benthic macroinvertebrates (collecting), Estuarine environments-collecting benthic macroinvertebrates, Fresh water-collecting benthic macroinvertebrates, Marine environments-collecting benthic macroinvertebrates, Sampling-benthic macroinvertebrates, Surber/related samplers, practice,, Drift net sampler, collecting benthic macroinvertebrates with Surber/related samplers,, practice,, Surber sampler, collecting benthic macroinvertebrates, practice
Doplňujúce informácie
| 1. Scope |
|
1.1 This practice covers the procedures for obtaining a sample of macroinvertebrates inhabiting mud, sand, gravel, or rubble substrate. 1.2 The device is restricted to use in shallow streams or shallow areas of rivers, and it depends on a water velocity of not less than 0.05 m/s to wash the sample into a net. 1.3 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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. For a specific hazard statement, see 6.8. |
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