ISO 10203:2017 鉄鉱石—カルシウムの測定—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 fourth edition cancels and replaces the third edition (ISO 10203:2015), of which it constitutes a minor revision with the following changes:

• 5.11, minor editorial/grammatical amendments have been incorporated;
• 6.1,"with a lid" has been inserted after"crucible";
• 6.3 b),"the ratio between" has been inserted before"the slope" and minor editorial/grammatical amendments have been incorporated;
• 7.2, reference to ISO 2596 has been incorporated and 7.2 has been rearranged in a more appropriate layout/format;
• 8.2, reference to ISO 2596 has been incorporated;
• "predried" has been deleted where it is inappropriate in 8.1, 8.2, and 8.3.2;
• some references to the reagents in 8.4.2, 8.4.3, and Table 2 have been corrected;
• the last line of 9.2.3, the formula has been corrected from to;
• 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.

1 Scope

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

This method is applicable to mass fractions of calcium between 0,010 % and 8,00 % 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

No terms and definitions are listed in this document.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

Bibliography