ISO 4298:2022
Manganese ores and concentrates — Determination of manganese content — Potentiometric method
This document specifies a potentiometric method for the determination of the manganese content of manganese ores and concentrates with manganese content equal to or greater than a mass fraction of 15 %.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Procedure
8.1 Test portion
8.2 Blank test
8.3 Determination of hygroscopic moisture content
8.4 Decomposition of test portion
8.5 Treatment of residue
8.6 Titration
9 Expression of results
9.1 Calculation of manganese content
9.2 General treatment of results
9.2.1 Expression of precision
9.2.2 Determination of analytical result
9.2.3 Between-laboratories precision
9.2.4 Check for trueness
9.2.5 Calculation of final result
10 Test report
Annex A (informative) Additional information on the international interlaboratory test
Annex B (normative) Flow chart for the acceptance procedure of test results
Bibliography
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Related Information
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BS ISO 4298:2022
Manganese ores and concentrates. Determination of manganese content. Potentiometric method
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ISO 310:1992
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ISO 312:1986
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ISO 315:1984
Manganese ores and concentrates — Determination of nickel content — Dimethylglyoxime spectrometric method and flame atomic absorption spectrometric method
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Procedure
8.1 Test portion
8.2 Blank test
8.3 Determination of hygroscopic moisture content
8.4 Decomposition of test portion
8.5 Treatment of residue
8.6 Titration
9 Expression of results
9.1 Calculation of manganese content
9.2 General treatment of results
9.2.1 Expression of precision
9.2.2 Determination of analytical result
9.2.3 Between-laboratories precision
9.2.4 Check for trueness
9.2.5 Calculation of final result
10 Test report
Annex A (informative) Additional information on the international interlaboratory test
Annex B (normative) Flow chart for the acceptance procedure of test results
Bibliography