Water quality. Determination of the toxicity of water samples on the embryo-larval development of Japanese oyster (Crassostrea gigas) and mussel (Mytilus edulis or Mytilus galloprovincialis) Ingestion-build-73935 Rules for rounding-off tolerances

Rules for rounding-off tolerances

BS 7543 indented the variability of operating conditions

which is already considered by the standardisation procedure

It also specifies the information to be supplied by the customer to the anodizer

including both printed and on-screen documents used in the work environment by users of systems containing software

Water quality. Determination of the toxicity of water samples on the embryo-larval development of Japanese oyster (<i>Crassostrea</i> <i>gigas</i>) and mussel (<i>Mytilus</i> <i>edulis</i> or <i>Mytilus</i> <i>galloprovincialis</i>) Ingestion-build-73935 Rules for rounding-off tolerances1 Scope This International Standard specifies a method for determining the effects of chemical and aqueous samples on the embryo larval development of marine bivalves. It 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 and 40 for mussels and between 25 and 35 for oysters. This method applies to chemical substances and preparations,