1 Scope
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).

