ISO 1391-4:1976
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Paraformaldehyde for industrial use Methods of test Part 4: Determination of water-insoluble matter
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
12-03-2019
English, French
01-12-1976
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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