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

Abstract

ISO/TR 4277:2009 describes a conventional test for the evaluation of the free fluorides content of natural, artificial and recovered cryolite.

This method is applicable to products having free fluorides content greater than 0,15 % (mass fraction) of AIF₃ or 0,4 % (mass fraction) of NaF.

General information

Status
: Published

Publication date
: 2009-11
Edition
: 1

Number of pages
: 6
Technical Committee
: ISO/TC 226 Materials for the production of primary aluminium
ICS
:
71.060.50 Salts

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ISO/TR 4277:2009
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