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OS GSO ISO 6629:2017
Omani Standard
Chromium ores and concentrates -- Methods of chemical analysis -- General instructions
GSO ISO 6130:2017
ISO 6130:1985
Gulf Standard
Chromium ores -- Determination of total iron content -- Titrimetric method after reduction
OS GSO ISO 5997:2017
Omani Standard
Chromium ores and concentrates -- Determination of silicon content -- Molecular absorption spectrometric method and gravimetric method
GSO ISO 8889:2017
ISO 8889:1988
Gulf Standard
Chromium ores and concentrates -- Determination of aluminium content -- Complexometric method
GSO ISO 6629:2017
ISO 6629:1981
Gulf Standard
Chromium ores and concentrates -- Methods of chemical analysis -- General instructions
GSO ISO 5975:2017
ISO 5975:1983
Gulf Standard
Chromium ores -- Determination of calcium and magnesium contents -- EDTA titrimetric method
GSO ISO 6129:2017
ISO 6129:1981
Gulf Standard
Chromium ores -- Determination of hygroscopic moisture content in analytical samples -- Gravimetric method
OS GSO ISO 6127:2017
Omani Standard
Chromium ores -- Determination of phosphorus content -- Reduced molybdophosphate photometric method
OS GSO ISO 6130:2017
Omani Standard
Chromium ores -- Determination of total iron content -- Titrimetric method after reduction
OS GSO ISO 6129:2017
Omani Standard
Chromium ores -- Determination of hygroscopic moisture content in analytical samples -- Gravimetric method
GSO ISO 6331:2017
ISO 6331:1983
Gulf Standard
Chromium ores and concentrates -- Determination of chromium content -- Titrimetric method
OS GSO ISO 5975:2017
Omani Standard
Chromium ores -- Determination of calcium and magnesium contents -- EDTA titrimetric method