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ISO TR 4277

1st Edition, November 1, 2009

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Cryolite, natural and artificial — Conventional test for evaluation of free fluorides content



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Description / Abstract:

This Technical Report 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.
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