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ISO 2762:1973

Hydrochloric acid for industrial use — Determination of soluble sulphates — Turbidimetric method ISO 2762:1973

Publication date:   Nov 1, 1973

General information

90.93 Standard confirmed   Nov 29, 2023

ISO

ISO/TC 47 Chemistry

International Standard

71.060.30   Acids

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Scope

The turbidimetric method is applicable to products containing less than 0.1 % (m/m) of soluble sulphates. The principle consists in evaporation of a test portion to dryness and solution of the residue in hydrochloric acid. Measurement of the turbidity obtained by precipitation, under well defined conditions, of barium sulphate. Has also been approved by the IUPAC.

Life cycle

NOW

PUBLISHED
ISO 2762:1973
90.93 Standard confirmed
Nov 29, 2023