Reference number
ISO 12740:1998
ISO 12740:1998
© ISO 2025
International Standard
ISO 12740:1998
Lead sulfide concentrates — Determination of silver and gold contents — Fire assay and flame atomic absorption spectrometric method using scorification or cupellation
Edition 1
1998-12
1998-12
ISO 12740:1998
2659
Published
(Edition 1, 1998)
This publication was last reviewed and confirmed in 2020.
Therefore this version remains current.
Abstract
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.
General information
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Status: PublishedPublication date: 1998-12Stage: International Standard under systematic review [90.20]
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Edition: 1Number of pages: 26
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Technical Committee :ISO/TC 183ICS :73.060.99
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