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GB/T 6730.56-2019 Iron ores—Determination of aluminum content—Flame atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
GB/T 6730.73-2016 Iron ores—Determination of total iron content—EDTA photometric titration method (USD) via email in 1-3 business day VALID
GB/T 6730.9-2016 Iron ores—Determination of silicon content—Silicomolybdic blue spectrophotometric method reduced by ammonium ferrous sulfate (USD) via email in 1-3 business day VALID
GB/T 24189-2009 Iron ores for blast furnace feedstocks—Determination of the reducibility by the final degree of reduction index (USD) via email in 1-3 business day VALID
YS/T 787-2012 Recovery of iron ore from red mud (USD) via email in 1-3 business day VALID
GB/T 6730.73-2016E Iron ores – Determination of total iron content – EDTA photometric titration method via email in VALID please email coc@codeofchina.com for quotation
GB/T 24530-2009 Iron ores for blast furnace feedstocks—Determination of reduction under load (USD) via email in 1-3 business day VALID
GB/T 24585-2009 Iron ores—Determination of apparent density,true density and porosity (USD) via email in 1-3 business day VALID
GB/T 6730.17-2014 Iron ores—Determination of sulfur content—Combustion iodometric method (USD) via email in 1-3 business day VALID
GB/T 6730.70-2013 Iron ores - Determination of total iron content - Titrimetric method after tin(Ⅱ) chloride reduction (USD) via email in 1-3 business day VALID
GB/T 29652-2013 Direct reduced iron—Determination of carbon and sulfur—High frequency combustion with infrared absorption method (USD) via email in 1-3 business day VALID
GB/T 6730.7-2016 Iron ores—Determination of metallic iron content—Sulfosalicylic acid spectrophotometric method (USD) via email in 1-3 business day VALID
GB/T 6730.58-2004 Iron ores—Determination of vanadium content—Flame atomic absorption spectrometric methods via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 24531-2009 Iron ores for blast furnace and direct reduction feedstocks—Determination of the tumble and abrasion indices via email in VALID please email coc@codeofchina.com for quotation
GB/T 6730.19-2016 Iron ores—Determination of phosphorus content—Bismuth phosphomolybdate blue spectrophotometric method (USD) via email in 1-3 business day VALID
GB/T 6730.25-2006 Iron ores - Determination of total rare earth contents - Oxalate gravimetric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 6730.3-2017 Iron ores—Determination of hygroscopic moisture in analytical samples—Gravimetric,Karl Fischer and mass-loss methods (USD) via email in 1-3 business day VALID
GB/T 6730.21-2016 Iron ores—Determination of manganse content—Potassium periodate spectrophotometric method (USD) via email in 1-3 business day VALID
GB/T 24241-2009 Direct reduced iron—Determination of the tumble and abrasion indices of hot briquetted iron (HBI) (USD) via email in 1-3 business day VALID
GB/T 24239-2009 Direct reduced iron and hot briquetted iron—Sampling and sample preparation (USD) via email in 1-5 business day VALID
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