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Standard BS 4993-1:1974 28.2.1974 preview

BS 4993-1:1974

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



STANDARD published on 28.2.1974


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The information about the standard:

Designation standards: BS 4993-1:1974
Publication date standards: 28.2.1974
SKU: NS-69215
The number of pages: 10
Approximate weight : 30 g (0.07 lbs)
Country: British technical standard
Category: Technical standards BS

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Salts

Annotation of standard text BS 4993-1:1974 :

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. Status: Confirmed

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