90.93 Standard confirmed Jun 24, 2022
ISO
ISO/TC 102/SC 2 Chemical analysis
International Standard
73.060.10 Iron ores
Published
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.
WITHDRAWN
ISO 4691:1985
PUBLISHED
ISO 4691:2009
90.93
Standard confirmed
Jun 24, 2022