ISO-2830 › Cryolite, natural and artificial -- Determination of aluminium content -- Atomic absorption method

ISO-2830 - 1ST EDITION - CURRENT


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Applicable to products having a normal composition for which the molar ratio NaF/AlF3 is equal to about 3. Dissolution of a test portion in concentrated suphuric acid and elimination of hydrogen fluoride. Treatment with hydrochloric acid and water. Atomization of the solution into an acetylene measurement of the absorption of the 309.3 nm line emitted by an aluminium hollow cathode lamp. Has also been approved by the IUPAC.

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Document Number

ISO 2830:1973

Revision Level

1ST EDITION

Status

Current

Publication Date

Dec. 15, 1973

Committee Number

ISO TC 47/SC 7