ISO 15247:2015 硫化亜鉛精鉱—銀含有量の測定—酸溶解およびフレーム原子吸光分光法 | ページ 2

Foreword

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The committee responsible for this document is ISO/TC 183, Copper, lead, zinc and nickel ores and concentrates.

This second edition cancels and replaces the first edition (ISO 15247:1999), of which the warning in A.3.1 in Annex A has been revised.

This corrected version of ISO 15247:2015 incorporates the following corrections:

• 4.4, “hydrofluoric acid” has been changed to “hydrochloric acid”;
• 9.1, in the definition of variables used in Formula (3), “s_R” has been changed to “s_L”.

1 Scope

This International Standard specifies an acid dissolution and flame atomic absorption spectrometric method for the determination of silver content of zinc sulfide concentrates.

The method is applicable to the determination of silver in zinc sulfide concentrates containing up to 60 % (m/m) zinc in the form of zinc blende and related materials.

The method is applicable to silver contents from 10 g/t to 500 g/t.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

Bibliography