EN ISO 5667-15:2026

This document specifies the general requirements on procedures for the preservation, handling and storage ofsamples of sewage and waterworks sludge, suspended matter, marine sediments and freshwater sediments for either chemical, physical, radiochemical, hydrobiological or microbiological examination, or all, inthe laboratory.The procedures in this document are not applicable to dried samples of sludge, sediment andsuspended matter.NOTE The storage conditions given do not necessarily apply for derived samples, e.g. sediment eluates or extracts.This document is not applicable to samples intended for biotesting with ecotoxicological or biological assays (which is specified in ISO 5667-16[5]) nor intended for microplastics (which is specified inISO5667-27[7]).