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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
17. 12. 1998.

Опште информације

90.93     10. 7. 2025.

ISO

ISO/TC 183

Međunarodni standard

73.060.99  

engleski  

Kupovina

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Apstrakt

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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TRENUTNO

OBJAVLJEN
ISO 12740:1998
90.93 Odluka o potvrđivanju standarda
10. 7. 2025.