ISO-12740 › Lead sulfide concentrates -- Determination of silver and gold contents -- Fire assay and flame atomic absorption spectrometric method using scorification or cupellation

ISO-12740 - 1ST EDITION - CURRENT


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This International Standard specifies a fire assay and flame atomic absorption spectrometric procedure for the determination of silver and gold contents of lead sulfide concentrates.

The method is applicable to the determination of silver and gold in lead sulfide concentrates containing 10 % (m/m) to 80 % (m/m) lead.

The method is applicable to silver contents from 200 g/t to 2 000 g/t and gold contents from 0,1 g/t to 25 g/t.

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Document Number

ISO 12740:1998

Revision Level

1ST EDITION

Status

Current

Publication Date

Dec. 1, 1998

Committee Number

ISO TC 183/WG 7