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ISO 731-4:1977

Formic acid for industrial use -- Methods of test -- Part 4: Visual limit test for inorganic chlorides

General information
Withdrawn from 27.05.2002
Directives or regulations
None

Standard history

Status
Date
Type
Name
Applicable to products having inorganic chlorides contents in the range 0,0005 to 0,5 % (m/m). Comparison of the turbidity, obtained by the addition of silver nitrate to a solution prepared from a test portion, with that similarly obtained from a standard chloride solution.
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