ISO 4322:1977

Current Revision
Non-ionic surface active agents -- Determination of sulphated ash -- Gravimetric method

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ISO 4322:1977

Non-ionic surface active agents -- Determination of sulphated ash -- Gravimetric method

PUBLISH DATE 1977
ISO 4322:1977

The method consists in calcination of a test portion in the presence of sulphuric acid solution and weighing of the ash in form of sulphate.

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