Reference number
ISO 3390:1976
© ISO 2024
ISO 3390:1976
Aluminium oxide primarily used for the production of aluminium — Determination of manganese content — Flame atomic absorption method
Edition 1
1976-09
Withdrawn
Withdrawn (Edition 1, 1976)

Abstract

Applicable to products having a Mn content between 0.0002 % (m/m) and 0.005 % (m/m). Preliminary extraction by the method specified in the annex if the apparatus available does not have a sufficient sensitivity. Describes the dissolution of a test sample by heating in a sealed borosilicate glass tube with hydrochloric acid at a controlled temperature of 250 °C. Aspiration of the solution in an air-acetylene flame and spectrophotometric measurement of the absorption of the 279.5-nm line emitted by a manganese hollow cathode lamp.

General information

  • Status
     : Withdrawn
    Publication date
     : 1976-09
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 6
  • Technical Committee :
    ISO/TC 226
    ICS :
    71.100.10 
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