DIN Standards Committee Materials Testing
ISO 3431
Sodium fluoride primarily used for the production of aluminium; Determination of soluble sulphates content; Turbidimetric method
Natriumfluorid (Natronfluorsalz) für Industriezwecke; Bestimmung des Anteiles lösbarer Sulfate; turbidimetrische Methode (spektrophotometrische Absorption)
Responsible national committee
NA 062-02-81 AA - Testing of carbonaceous materials
Responsible international committee
ISO/TC 226 - Materials for the production of primary aluminium