ISO 2762:1973
International Standard
Current Edition
·
Approved on
01 November 1973
Hydrochloric acid for industrial use — Determination of soluble sulphates — Turbidimetric method
ISO 2762:1973 Files
English
3 Pages
Current Edition
20.18 BHD
ISO 2762:1973 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.
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