Norm

ISO 3431:1976 en

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

31,57

Over deze norm

Status Definitief
Aantal pagina's 3
Gepubliceerd op 01-07-1976
Taal Engels
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.

Details

ICS-code 71.100.10
Nederlandse titel Sodium fluoride primarily used for the production of aluminium - Determination of soluble sulphates content - Turbidimetric method
Engelse titel Sodium fluoride primarily used for the production of aluminium - Determination of soluble sulphates content - Turbidimetric method

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