Surface active agents. Preparation of water with known calcium and magnesium hardness Ingestion-build-135476 This International Standard supersedes BS

This International Standard supersedes BS 2576:1986 which is withdrawn

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Surface active agents. Preparation of water with known calcium and magnesium hardness Ingestion-build-135476 This International Standard supersedes BS1 Scope This European Standard specifies a method of preparing water of known calcium and magnesium hardness for use in testing surface active agents and products containing them.