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download between 0-24 hoursReleased: 1973
ISO 2762:1973
ISO 2762:1973-Hydrochloric acid for industrial use-Determination of soluble sulphates
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| Standard´s number: | ISO 2762:1973 |
| Pages: | 3 |
| Edition: | 1 |
| Released: | 1973 |
DESCRIPTION
ISO 2762:1973
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.