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GB/T 26297.5-2010 Sampling of carbonaceous materials used for aluminium production—Part 5:Pitch for electrodes (USD) via email in 1-3 business day VALID
YS/T 575.19-2007 Methods for chemical analysis of bauxite Part 19:Determination of the loss on ignition Gravimetric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 587.6-2006 Calcined coke for prebaked blocks -- Testing methods -- Part 6: Determination of electrical resistivity of granules (USD) via email in 1-3 business day VALID
YB/T 5189-2007 Determination of the volatile matter content in carbon material (USD) via email in 1-3 business day VALID
YS/T 575.21-2007 Methods for chemical analysis of bauxite Part 21:Determination of organic carbon content titrimetric method (USD) via email in 1-3 business day VALID
YS/T 575.13-2007 Methods for chemical analysis of bauxite Part 13:Determination of zinc content flame Atomic absorption spectrophotometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 26930.13-2014 Carbonaceous materials used in the production of aluminium—Pitch for electrodes—Part 13:Determination of C/H ratio in the quinoline-insoluble fraction (USD) via email in 1-3 business day VALID
YS/T 587.5-2006 Calcined coke for prebaked blocks -- Testing methods -- Part 5: Determination of trace metals (USD) via email in 1-3 business day VALID
YS/T 575.15-2007 Methods for chemical analysis of bauxite Part 15:Determination of gallium oxide content Rhodamine B-extraction photometric method (USD) via email in 1-3 business day VALID
ZB Q 52001-1990 via email in ABOLISHED please email coc@codeofchina.com for quotation
YB 2808-1991 (USD) via email in 1-3 business day ABOLISHED
YS/T 575.9-2007 Methods for chemical analysis of bauxite Part 9:Determination of potassium oxide and sodium oxide Cotent flame atomic absorption spectrophotometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 575.17-2007 Methods for chemical analysis of bauxite Part 17:Determination of sulfur content Direct combustion-iodometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 63.24-2012 Carbonaceous materials used in the production of aluminiumPart 24:Baked anodes —Determination of the reactivity to carbon dioxide—Thermogravimetric method (USD) via email in 1-3 business day VALID
GB/T 26310.3-2010 Carbonaceous materials used in the production of aluminium—Calcined coke—Part 3:Determination of apparent oil content—Heating method (USD) via email in 1-3 business day VALID
YS/T 587.13-2007 Calcined coke for prebaked blocks-Testing methods-Part 13 Determination of crystallite size(Lc) via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 287-2005 Partially graphitiferous cathode carbon block for aluminium electrolysis (USD) via email in 1-3 business day ABOLISHED
YS/T 63.22-2009 Carbonaceous materials used in the production of aluminium—Part 22:Determination of baking level expressed by equivalent temperature (USD) via email in 1-3 business day VALID
GB/T 8719-2009 General rule for packing,marking,storage,transport and quality certificates of carbonaceous material and products (USD) via email in 1-3 business day VALID
YB/T 192-2015 Recarburizers for steelmaking (USD) via email in 1 business day VALID
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