73.060.10 - Iron ores

This document specifies a method for the determination of the moisture content of a lot of iron ore. This method is applicable to all iron ores, whether natural or processed.

This document specifies a photometric titration method using EDTA for the determination of the total iron content of iron ores. This method is applicable to a concentration range of a mass fraction of 37,00 % to 72,00 % of total iron in natural iron ores, iron ore concentrates and agglomerates, including sinter products.

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 sint...view more

This document 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. This document can also be applied for the purpose of checking the precision of sampling, sample preparation and measurement separately.

This document specifies the methods to be employed for determination of size distributions by sieving of iron ore and direct reduced iron (excluding briquetted iron), utilizing sieves having aperture sizes of 36 µm or larger. The size distribution is expressed in terms of mass and percentage mass, passed or retained on selected sieves. The purpose of this document is to provide a basis for any testing of iron ore and direct reduced iron involving size determination for use by contracting parties...view more

This document specifies two titrimetric methods, free from mercury pollution, for the determination of total iron content in 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 either dilute potassium dichromate (Method 1) or perchloric acid (Method 2). Both methods are applicable to a concentration range of 30 % mass fraction to 72 % mass fraction of iron in natural iron ores, ...view more

ISO 21283:2018 specifies a method to determine the fineness of iron ores in terms of specific surface area, using the manual Blaine air-permeability apparatus. ISO 21283:2018 is applicable to pellet feeds in the range of 400 cm2/g to 2 500 cm2/g of specific surface area.

ISO 15633:2017 specifies a flame atomic absorption spectrometric method for the determination of the nickel mass fraction of iron ores. This method is applicable to mass fractions of nickel between 0,001 % and 0,10 % in natural iron ores, iron ore concentrates and agglomerates including sinter products. This method is not appropriate for referee purposes.

ISO 22682:2017 specifies a method for the determination of phosphorus, vanadium, titanium, copper, nickel, chromium, barium and cobalt in iron ores, by inductively coupled plasma atomic emission spectrometry (ICP-AES).

ISO 10204:2017 specifies a flame atomic absorption spectrometric method for the determination of the mass fraction of magnesium in iron ores. This method is applicable to mass fractions of magnesium between 0,010 % and 2,00 % in natural iron ores, iron ore concentrates, and agglomerates, including sinter products.

ISO 3082:2017 provides a) the underlying theory, b) the basic principles for sampling and preparation of samples, and c) the basic requirements for the design, installation and operation of sampling systems for mechanical sampling, manual sampling and preparation of samples taken from a lot under transfer. This is in order to determine the chemical composition, moisture content, size distribution and other physical and metallurgical properties of the lot, except bulk density obtained using ISO 3...view more

ISO/TR 9686:2017 specifies a method for the determination of the mass fraction of carbon and/or sulfur in direct reduced iron by infrared measurement after high-frequency combustion. This method is applicable to mass fractions of carbon between 0,05 % and 2,5 %, and/or mass fractions of sulfur between 0,001 % and 0,05 % in direct reduced iron.

ISO/TR 4688-1:2017 describes a flame atomic absorption spectrometric method for the determination of the mass fraction of aluminium in iron ores. This method is applicable to mass fractions of aluminium between 0,1 % and 5,0 % in natural iron ores, iron ore concentrates and agglomerates, including sinter products.

ISO 10203:2017 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.

This document specifies a combustion/titration method for the determination of the sulfur content of
iron ores.
This method is applicable to sulfur contents between 0,002 % (mass fraction) and 0,25 % (mass
fraction) in natural iron ores, iron ore concentrates, and agglomerates, including sinter products. The
results are not affected by the presence of fluoride.

This document specifies a combustion/infrared method, using a high-frequency induction furnace, for
the determination of the sulfur content of iron ores.
This method is applicable to sulfur contents between 0,002 % (mass fraction) and 0,25 % (mass
fraction) in natural iron ores, iron ore concentrates and agglomerates, including sinter products. The
method is not applicable to iron ores containing more than 1,0 % (mass fraction) of combined water.
The apparatus, of which the metal filter is ...view more

ISO 13312:2017 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.

ISO 13313:2017 specifies a flame atomic absorption spectrometric method for the determination of the mass fraction of sodium in iron ores. This method is applicable to mass fractions of sodium between 0,002 5 % and 0,50 % in natural iron ores, iron ore concentrates and agglomerates, including sinter products.

ISO 4689-2:2017 specifies a combustion/titration method for the determination of the sulfur content of iron ores. This method is applicable to sulfur contents between 0,002 % (mass fraction) and 0,25 % (mass fraction) in natural iron ores, iron ore concentrates, and agglomerates, including sinter products. The results are not affected by the presence of fluoride.

ISO 4689-3:2017 specifies a combustion/infrared method, using a high-frequency induction furnace, for the determination of the sulfur content of iron ores. This method is applicable to sulfur contents between 0,002 % (mass fraction) and 0,25 % (mass fraction) in natural iron ores, iron ore concentrates and agglomerates, including sinter products. The method is not applicable to iron ores containing more than 1,0 % (mass fraction) of combined water. The apparatus, of which the metal filter is equ...view more