ISO-2762 › Hydrochloric acid for industrial use -- Determination of soluble sulphates -- Turbidimetric method

ISO-2762 - 1ST EDITION - CURRENT


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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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Document Number

ISO 2762:1973

Revision Level

1ST EDITION

Status

Current

Publication Date

Nov. 1, 1973

Committee Number

ISO TC 47