ISO-3390 › Aluminium oxide primarily used for the production of aluminium -- Determination of manganese content -- Flame atomic absorption method
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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.
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71.100.10 (Materials for aluminium production)
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Document Number
ISO 3390:1976
Revision Level
1ST EDITION
Status
Superseded
Publication Date
Sept. 1, 1976
Committee Number
ISO TC 47/SC 7