ISO 3390:1976 PDF
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Aluminium oxide primarily used for the production of aluminium — Determination of manganese content — Flame atomic absorption method
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.
| Edition | 1976 |
|---|---|
| Published Date | 1976 |
| Published By | International Standardization Organisation |
| Page Count | 6 |
