ISO 4691:2009 Preview
Iron ores -- Determination of titanium -- Diantipyrylmethane spectrophotometric method
This standard was last reviewed and confirmed in 2014. Therefore this version remains current.
ISO 4691:2009 specifies a spectrophotometric method using diantipyrylmethane for the determination of the mass fraction of titanium in iron ores.
ISO 4691:2009 is applicable to a mass-fraction range of 0,02 % to 4,0 % of titanium in natural iron ores, and iron ore concentrates and agglomerates including sinter products.
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