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BS 4140-17:1986

Current

Current

The latest, up-to-date edition.

Methods of test for aluminium oxide Determination of fluorine content

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

28-02-1986

€140.23
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Gives a spectrophotometric method, using alizarin complexone and lanthanum chloride for determining fluorine content of aluminium oxide used for the production of aluminium. Applicable to fluorine contents greater than 0,003%.

Committee
W/-
DevelopmentNote
Also numbered as ISO 2828 Supersedes 85/52366 DC and BS 4140:ADD3(1974) (07/2005) Reviewed and confirmed by BSI, November 2016. (11/2016)
DocumentType
Standard
Pages
10
PublisherName
British Standards Institution
Status
Current
Supersedes

This International Standard specifies a spectrophotometric method, using alizarin complexone and lanthanum chloride, for the determination of the fluorine content of aluminium oxide primarily used for the production of aluminium.

The method is applicable to fluorine (F) contents greater than 0,003 %.

BS 4140-13:1986 Methods of test for aluminium oxide Preparation of sample solution by treatment with hydrochloric acid under pressure
BS 5050:1974 Methods of test for cryolite
BS 4140-1:1986 Methods of test for aluminium oxide Preparation and storage of test samples

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