Reference number
ISO/TR 4277:2009
© ISO 2025
Technical Report
ISO/TR 4277:2009
Cryolite, natural and artificial — Conventional test for evaluation of free fluorides content
Edition 1
2009-11
Technical Report
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Published (Edition 1, 2009)

ISO/TR 4277:2009

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CHF 43
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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
    Stage
    : International Standard published [60.60]
  • Edition
     : 1
    Number of pages
     : 6
  • Technical Committee :
    ISO/TC 226
    ICS :
    71.060.50 
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