Water quality. Guidance on field and laboratory procedures for quantitative analysis and identification of macroinvertebrates from inland surface waters Ingestion-build-51215 ISO 9211-5 specifies minimum requirements

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Water quality. Guidance on field and laboratory procedures for quantitative analysis and identification of macroinvertebrates from inland surface waters Ingestion-build-51215 ISO 9211-5 specifies minimum requirementsWhat is this standard about? This document gives guidance on the quantitative estimation of abundance and identification of macroinvertebrates in samples taken from inland waters. The procedure deals with pre treatment (cleaning), sub sampling, sorting, and final identification of organisms from preserved and unpreserved samples originating from natural habitats or artificial substrates and their transport to the laboratory. Specific guidance is given