ISO 3390:1976
Aluminium oxide primarily used for the production of aluminium — Determination of manganese content — Flame atomic absorption method
Reference number
ISO 3390:1976
Edición 1
1976-09
Retirada
ISO 3390:1976
8689
Retirada (Edición 1, 1976)

Resumen

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.

Informaciones generales

  •  : Retirada
     : 1976-09
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 6
  • ISO/TC 226
    71.100.10 
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