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ISO 731-2:1977

Formic acid for industrial use — Methods of test — Part 2: Determination of total acidity — Titrimetric method ISO 731-2:1977

Publication date:   Feb 1, 1977

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

71.080.40   Organic acids

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Scope

The principle consists in a titration of a test portion with a standard volumetric sodium hydroxide solution, using phenolphthalein as indicator. ISO/R 731 has been subdivised into seven parts. ISO 731/2 replaces clause 3 of ISO Recommendation R 731-1968.

Life cycle

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WITHDRAWN
ISO 731-2:1977
95.99 Withdrawal of Standard
May 27, 2002




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