International Standard
ISO 17244:2025
Water quality — Determination of the toxicity of water samples on the embryo-larval development of the Japanese oyster (Magallana gigas) and the blue mussel (Mytilus edulis or M. galloprovincialis)
Reference number
ISO 17244:2025
Edition 2
2025-07
© ISO 2026
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Published (Edition 2, 2025)

ISO 17244:2025

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Abstract

This document specifies a method for assessing the effects of chemical and aqueous samples on the embryo-larval development of marine bivalves. This method allows the determination of the concentration levels that result in an abnormality in embryo-larval development. This test is suitable for salinity ranges:

—     between 20 PSU (practical salinity unit) and 40 PSU for mussels, and

—     between 25 PSU and 35 PSU for oysters.

This method in this document applies to:

—     chemical substances and preparations,

—     marine and brackish waters,

—     streams and aqueous effluents (urban, agricultural, industrial effluents, etc.) as long as the salinity is adjusted or dilution is limited so that the aforementioned salinity ranges are respected,

—     aqueous extracts (pore water, elutriates, eluates and leachates) from sediments and petroleum products, and

—     samples of contaminated sediment or dredged material (see Annex C).

General information

  • Status
     : Published
    Publication date
     : 2025-07
    Stage
    : International Standard published [60.60]
  • Edition
     : 2
    Number of pages
     : 25
  • Technical Committee :
    ISO/TC 147/SC 5
    ICS :
    13.060.70 
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