ISO 13312:2017 鉄鉱石—カリウムの測定—フレーム原子吸光分光法 | ページ 2

Foreword

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This document was prepared by Technical Committee ISO/TC 102, Iron ore and direct reduced iron, Subcommittee SC 2, Chemical analysis.

This third edition cancels and replaces the second edition (ISO 13312:2006), of which it constitutes a minor revision with the following changes:

• 7.2, a new sentence to make reference to ISO 2596 has been included;
• 9.2.4, Formula (7) and the relevant descriptions have been modified to harmonize this subclause across all International Standards for which ISO/TC 102/SC 2 is responsible;
• 5.4, 5.5, 8.4.2 and 9.2.1, the footnotes have been moved to the appropriate place.

1 Scope

This document specifies a flame atomic absorption spectrometric method for the determination of the mass fraction of potassium in iron ores.

This method is applicable to mass fractions of potassium between 0,002 5 % and 0,52 % in natural iron ores, iron ore concentrates and agglomerates, including sinter products.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 11323 apply.

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Bibliography