Iron ores — Determination of total iron content — Part 4: Potentiometric titration method
NORMA vydaná dňa 27.9.2019
Označenie normy: ISO/TS 2597-4:2019
Dátum vydania normy: 27.9.2019
Počet strán: 22
Približná hmotnosť: 66 g (0.15 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO
Description / Abstract: This document 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 a mass fraction of 29,04 % and a mass fraction of 72,02 % in natural iron ores and iron ore concentrates and agglomerates including sinter products.