ISO-2071 › Aluminium oxide primarily used for the production of aluminium -- Determination of zinc content -- Flame atomic absorption method
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The method is applicable to products having Zn contents equal to or greater than 0,002 % (m/m). Dissolution of a test portion by hydrochloric acid under pressure. Aspiration of the solution into an acetylene-air flame and photometric measurement of the absorption of the 213,7 nm line emitted by a hollow-cathode zinc lamp. The dissolution of the sample can also be carried out by an alkaline fusion. This method is given in the annex. Replaces ISO Recommendation R 2071-1971.
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71.100.10 (Materials for aluminium production)
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Document Number
ISO 2071:1976
Revision Level
1ST EDITION
Status
Superseded
Publication Date
Sept. 15, 1976
Committee Number
ISO TC 47/SC 7