Norm

NEN-ISO 8265:1994 en

Water - Ontwerp en gebruik van kwantitatieve bemonsteringsapparatuur voor benthische macro-invertebraten op hard substraat in ondiep zoetwater

  • Deze norm is ingetrokken sinds 12-07-2012

48,19

Over deze norm

Status Ingetrokken
Aantal pagina's 9
Gepubliceerd op 01-03-1994
Taal Engels
This standard gives guidance on the equipment and procedures for the quantitative sampling of benthic macro-invertebrates by quadrat samplers in water of depths less than 500 mm, although methods are described to permit sampling, under certain conditions, in a water depth of up to 1 m. The procedures are applicable to the sampling of all accessible aquatic habitats in rivers, streams and estuaries where current velocities in excess of 0,1 m/s would be expected, but the samplers, with modifications, may be used in locations of low current velocity, such as ponds and lakes. Sampling may be difficult or impossible where the substrate includes large stones and boulers or dense stands of macrophytes (rooted plants). The results of using the samplers provide quantitative data on the presence, diversity and relative abundance of taxa.

Details

ICS-code 13.060.70
Nederlandse titel Water - Ontwerp en gebruik van kwantitatieve bemonsteringsapparatuur voor benthische macro-invertebraten op hard substraat in ondiep zoetwater
Engelse titel Water quality - Design and use of quantitative samplers for benthic macri-invertebrates on stony substrata in shallow freshwaters
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