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B51-14 (R2019) – Boiler, pressure vessel, and pressure piping code

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ISO 3431:1976

ISO 3431:1976 Sodium fluoride primarily used for the production of aluminium – Determination of soluble sulphates content – Turbidimetric method

CDN $85.00

SKU: b4fe77b3de3e Category:

Description

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.

Edition

1

Published Date

1976-07-01

Status

PUBLISHED

Pages

3

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

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.

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