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ISO 12740:1998

Lead sulfide concentrates — Determination of silver and gold contents — Fire assay and flame atomic absorption spectrometric method using scorification or cupellation ISO 12740:1998

Publication date:   Dec 17, 1998

General information

90.93 Standard confirmed   Jan 17, 2020

ISO

ISO/TC 183 Copper, lead, zinc and nickel ores and concentrates

International Standard

73.060.99   Other metalliferous minerals

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Scope

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.

Life cycle

NOW

PUBLISHED
ISO 12740:1998
90.93 Standard confirmed
Jan 17, 2020