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BS 4993-3:1974

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

Standard Details

Fusion of a test portion with sodium carbonate/boric acid, dissolution of the melt in nitric acid, formation of the yellow (oxidized) silico-molybdic complex, reduction to the blue form and spectrophotometric measurement at 815 nm.

General Information

Status : Confirmed
Standard Type: Main
Document No: BS 4993-3:1974
Document Year: 1974
Pages: 10
  • Section Volume:
  • GBM38 Chemical Technology (GMB38)

Life Cycle

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Confirmed
BS 4993-3:1974
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