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BSI BS 4993-1:1974

Methods of test for aluminium fluoride for industrial use -- Determination of fluorine content
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BSI BS 4993-1:1974

Methods of test for aluminium fluoride for industrial use -- Determination of fluorine content

PUBLISH DATE 1974
BSI BS 4993-1:1974

Withdrawn: This standard is no longer used.

Fusion of a test portion with sodium carbonate and separation of the fluorine by distillation with sulphuric acid.

Titration of the distillate with thorium nitrate solution using either sodium alizarinsulphonate with or without methylene blue as masking agents, or methylthymol blue as indicator.

SDO BSI: British Standards Institution
Document Number 4993-1
Publication Date Feb. 28, 1974
Language en - English
Page Count
Revision Level
Supercedes
Committee W/-
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