Reference number
ISO 1617:1976
© ISO 2024
ISO 1617:1976
Aluminium oxide primarily used for the production of aluminium — Determination of sodium content — Flame emission spectrophotometric method
Edition 1
1976-09
Withdrawn
Withdrawn (Edition 1, 1976)

Abstract

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.

General information

  • Status
     : Withdrawn
    Publication date
     : 1976-09
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 5
  • Technical Committee :
    ISO/TC 226
    ICS :
    71.100.10 
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