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SRPS H.B8.177:1979

Sodium fluoride primarily used for the production of aluminium — Determination of soluble sulphates content — Turbidimetric method

May 16, 1979
May 16, 1979
95.99   Withdrawal of Standard   Dec 20, 2012

General information

95.99     Dec 20, 2012

ISS

B082

International Standard

71.100.10  

Serbian  

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Scope

Applicable to products having SO4 contents of more than 0.05 % (m/m). Covers the dissolution of the test portion in hydrochloric acid and evaporation in hydrochloric acid solution for drying. Dissolution of the residue in a hydrochloric acid solution. Measurement of the turbidity obtained by precipitation, under specified conditions, of barium sulphate using a spectrophotometer at a wavelength of about 470 nm or a photoelectric absorptiometer.

Life cycle

NOW

WITHDRAWN
SRPS H.B8.177:1979
95.99 Withdrawal of Standard
Dec 20, 2012

Related project

Adopted from ISO 3431:1976