Technical rule
[CURRENT]
ISO/TR 4277
ISO/TR 4277
Cryolite, natural and artificial - Conventional test for evaluation of free fluorides content
Title (German)
Kryolith, natürlich oder künstlich, "klassische" titrimetrische Methode zur Bewertung des Gehaltes an freien Fluoriden
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