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GB/T 6730.28-2006 Iron ores―Determinaton of fluorine content―Ion-selective electrode method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB 6730.5-1986 Methods for chemical analysis of iron ores; The titanium chloride-potassium dichromate volumetric method for the determination of total iron content (USD) via email in 1-3 business day ABOLISHED
GB/T 25953-2010 Nonferrous metals mineral processing and iron concentrate recovering (USD) via email in 1-3 business day VALID
GB/T 6730.65-2009 Iron ores—Determination of total iron content—Titanium(Ⅲ) chloride reduction potassium dichromate titration methods(routine methods) (USD) via email in 1-3 business day VALID
GB/T 6730.35-2016 Iron ores—Determination of copper content—Oxalic acid bis-cyclohexylidene hydragide(cuprizone) spectrophotometric method (USD) via email in 1-3 business day VALID
GB/T 8454-1987 Determination of ferrous iron content in reduced ilmenite powder for welding rod (USD) via email in 1-3 business day VALID
GB 6730.3-1986 Methods for chemical analysis of iron ores; The gravimetric method for the determination of hygroscopic moisture content in analytical samples (USD) via email in 1-3 business day ABOLISHED
GB/T 6730.77-2019 Iron ores—Determination of arsenic content—Hydride generation-atomic fluorescence spectrometric method (USD) via email in 1-3 business day VALID
GB/T 6730.79-2019 Iron ores—Determination of cadmium content—Hydride generation-atomic fluorescence spectrometric method (USD) via email in 1-3 business day VALID
GB/T 13241-1991 Iron ores-Determination of reducibility (USD) via email in 1-3 business day ABOLISHED
GB/T 13240-2018 Iron ore pellets for blast furnace feedstocks—Determination of the free-swelling index (USD) via email in 1-3 business day VALID
GB/T 6730.18-2006 Iron ores - Determination of phosphorus content - Molybdenum blue spectrophotometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 6730.13-1986 Methods for chemical analysis of iron ores; The potassium permanganate volumetric method for the determination of calcium content (USD) via email in 1-3 business day ABOLISHED
GB/T 6730.67-2009 Iron ores—Determination of arsenic content—Hydride generation atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
GB/T 34214-2017 Iron ores—Determination of weight of free water (USD) via email in 1-3 business day VALID
GB/T 6730.50-2016 Iron ores--Determination of carbon content--Gas volumetric method (USD) via email in 1 business day VALID
GB/T 13242-1991 Iron ores-Low-temperature disintegration test-Method using cold tumbling after static reduction (USD) via email in 1-3 business day ABOLISHED
GB 6730.29-1986 Methods for chemical analysis of iron ores; The barium sulfate gravimetric method for the determination of barium content (USD) via email in 1-3 business day ABOLISHED
YS/T 1047.7-2015 (USD) via email in 1-3 business day VALID
GB 6730.26-1986 Methods for chemical analysis of iron ores; The thorium nitrate volumetric method for the determination of fluorine content (USD) via email in 1-3 business day ABOLISHED
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