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  • BS 4993-3:1974

BS 4993-3:1974

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

BSI Group , 02/28/1974

Publisher: BS

File Format: PDF

$80.00$160.02


Standard By:BSI Group , 02/28/1974
Published:02/28/1974
Pages:10
ISBN(s):0580079996
File Size:1 file , 410 KB
Language:English
Note:This product is unavailable in Ukraine, Russia, Belarus
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.Cross References:BS 1792BS 2586BS 3145BS 3422

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