ISO/TS 21738:2026

Water quality — Active biomonitoring method with in situ caged benthic amphipods

Publication date:   Jun 18, 2026

General information

60.60   Standard published   Jun 18, 2026

ISO

ISO/TC 147/SC 5 Biological methods

Technical Specification

13.060.50   Examination of water for chemical substances

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Scope

This document describes a method to expose test organisms (amphipods), directly on the field by a caging methodology, with the aim to measure bioaccumulation of chemical substances on a monitoring station, i.e. either the concentrations of metals or organic compounds, or both, accumulated in the organisms.
This document also describes the specifications for test organism selection and conditioning, in situ exposure, and finally sorting and conditioning of the surviving organisms after exposure.
This document does not apply to organism preparation methods (freeze-drying, extraction, mineralization) and quantification of the chemical substances.

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PUBLISHED
ISO/TS 21738:2026
60.60 Standard published
Jun 18, 2026