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GB/T 10322.2-2000 Iron ores--Experimental methods for evaluation of quality variation (USD) via email in 1-3 business day VALID
GB/T 24236-2009 Iron ores for shaft direct-reduction feedstocks—Determination of the reducibility index final degree of reduction and degree of metallization (USD) via email in 1-3 business day VALID
GB/T 24586-2009 Iron ores—Determination of apparent density,true density and porosity (USD) via email in 1-3 business day VALID
GB/T 20565-2006 Iron ores and direct reduced iron - Vocabulary (USD) via email in 1-3 business day VALID
YS/T 1047.4-2015 Methods for chemical analysis of copper magnetite—Part 4:Determination of sulfur content—High frequency combustion with infrared absorption method (USD) via email in 1-3 business day VALID
GB 1361-1978 Analytical methods of iron ores-Generality and common rules (USD) via email in 1-3 business day ABOLISHED
GB 6730.37-1986 Methods for chemical analysis of iron ores; The 4-[(5-chloro-2-pyridyl)azo]-1,3-diaminobenzene photometric method for the determination of cobalt content (USD) via email in 1-3 business day ABOLISHED
GB/T 6730.52-2004 Iron ores—Determination of cobalt content—Flame atomic absorption spectrometric methnod via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB 6730.10-1986 Methods for chemical analysis of iron ores; The gravimetric method for the determination of silicon content (USD) via email in 1-3 business day ABOLISHED
GB/T 6730.64-2007 Iron ores—Determination of water soluble chloride content—Ion-selective electrode method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 6730.47-2017 Iron ores—Determination of niobium content—Sulfochlorophenol S spectrophotometric method (USD) via email in 1-3 business day VALID
GB/T 10322.7-2004 Iron ore—Determination of size distribution by sieving via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 6730.49-2017 Iron ores—Determination of potassium content—Flame atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
GB/T 10322.4-2000 Iron ores--Experimental methods for checking the bias of sampling (USD) via email in 1-3 business day ABOLISHED
GB 6730.19-1986 Methods for chemical analysis of iron ores; The bismuth phosphomolybdate blue photometric method for the determination of phosphorus content (USD) via email in 1-3 business day ABOLISHED
GB/T 24204-2009 Iron ores for blast furnace feedstocks—Determination of low-temperature reduction-disintegration indices by dynamic method (USD) via email in 1-3 business day VALID
GB/T 6730.9-2006 Iron ores - Determination of silicon contents - The silicomolybdic blue spectrophotometric method reduce by ammonium ferrous sulfate via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 6730.45-1986 Methods for chemical analysis of iron ores; The diethyldithiocarbamic acid,Ag salt photometric method for the determination of arsenic content (USD) via email in 1-3 business day ABOLISHED
GB/T 6730.15-1986 Methods for chemical analysis of iron ores; The complexometric method for the determination of magnesium content (USD) via email in 1-3 business day ABOLISHED
GB/T 6730.2-2018 Iron ores—Determination of moisture content—Gravimetric method (USD) via email in 1-3 business day VALID
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