ISO 1617:1976

Aluminium oxide primarily used for the production of aluminium — Determination of sodium content — Flame emission spectrophotometric method

Publication date:   Sep 1, 1976

95.99 Withdrawal of Standard   Feb 4, 2016

General information

95.99 Withdrawal of Standard   Feb 4, 2016

ISO

ISO/TC 226 Materials for the production of primary aluminium

International Standard

71.100.10   Materials for aluminium production

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Scope

The method is applicable to sodium contents equal to or greater than 0.05 % (m/m). The principle of the procedure consists in the fusion, at a controlled temperature, of a test portion with a mixture oflithium carbonate and boron trioxide or a mixture of lithium carbonate and lithium tetraborate. Dissolution of the fused mass in hydrochloric acid. Aspiration of the solution into a flame and spectrophotometric measurement of the intensity of the light emitted at a wavelength of 589 nm. - Replaces ISO Recommendation R 1617-1970.

Life cycle

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WITHDRAWN
ISO 1617:1976
95.99 Withdrawal of Standard
Feb 4, 2016