Sodium fluoride primarily used for the production of aluminium — Determination of silica content — Reduced molybdosilicate spectrophotometric method

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

08-01-1976

Publisher

International Organization for Standardization

Specifies a spectrophotometric method, using the reduced molybdosilicate, for determining the silica content of sodium fluoride. Applicable to products of which the phosphorus pentoxide content does not exceed 0,02 % (m/m).

DevelopmentNote	Also numbered as BS 5072-6(1980). (07/2005)
DocumentType	Standard
Pages	5
PublisherName	International Organization for Standardization
Status	Current

Standards	Relationship
NFT 20 151 : 84 FD	Identical
NBN T 03 466 : 1983	Identical

PD ISO/TR 4277:2009	Cryolite, natural and artificial. Conventional test for evaluation of free fluorides content
ISO/TR 4277:2009	Cryolite, natural and artificial Conventional test for evaluation of free fluorides content