Metalliska mineraler

Ämnesområden: Järnmalm
Kommittébeteckning: SIS/TK 149 (Järnmalm)
Källa: ISO
Svarsdatum: den 23 sep 2018
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This international Standard specifies experimental methods for checking the precision of sampling, sample preparation and measurement of iron ores being carried out in accordance with the methods specified in ISO 3082 and the relevant ISO standards for measurement.

NOTE This International Standard may also be applied for the purpose of checking the precision of sampling, sample preparation and measurement separately.

Ämnesområden: Järnmalm
Kommittébeteckning: SIS/TK 149 (Järnmalm)
Källa: ISO
Svarsdatum: den 1 okt 2018
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This International Standard specifies a potentiometric titration method for the determination of total iron content of iron ores, using potassium dichromate as titrant after reduction of the iron(III) by tin(II) chloride and titanium(III) chloride. The excess reductant is then oxidized by potassium dichromate solution.

This method is applicable to total iron contents between 29,04 % (m/m) and 72,02 % (m/m) in natural iron ores and iron ore concentrates and agglomerates including sinter products.