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ISO 1391-4:1976

Paraformaldehyde for industrial use — Methods of test — Part 4: Determination of water-insoluble matter ISO 1391-4:1976

Publication date:   Dec 1, 1976

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

71.080.80   Aldehydes and ketones

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Scope

The principle of the procedure consists in the dissolution of a test sample in a highly diluted sodium hydroxide solution, filtration by using a tared filter crucible, drying of the residue at (100 2) °C. Determination of the in water insoluble substances by differences. - ISO 1391, Parts 1 to 4, replace ISO Recommendation R 1391-1970.

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WITHDRAWN
ISO 1391-4:1976
95.99 Withdrawal of Standard
May 27, 2002