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ISO 2489:1973

Potassium sulphate for industrial use — Determination of acidity to methyl orange ISO 2489:1973

Publication date:   Apr 1, 1973

95.99   Withdrawal of Standard   May 27, 2002

General information

95.99   Withdrawal of Standard   May 27, 2002

ISO

ISO/TC 47 Chemistry

International Standard

71.060.50   Salts

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Scope

The principle of the analysis consists in dissolution of the test solution in water and titration of the acidity, in presence of methyl orange, using standard volumetric sodium hydroxide solution. If the solution is coloured yellow the product is not acid with respect to methyl orange.

Life cycle

NOW

WITHDRAWN
ISO 2489:1973
95.99 Withdrawal of Standard
May 27, 2002




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