ISO 3430:1976 Sodium fluoride primarily used for the production of aluminium -- Determination of silica content -- Reduced molybdosilicate spectrophotometric method

standard by International Organization for Standardization, 08/01/1976

Full Description

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).