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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 6609.34-2009 Chemical analysis methods and determination of physical performance of alumina - Part 34: Method of calculating alumina content (USD) via email in 1-3 business day VALID
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
YS/T 273.11-2006 Chemical analysis methods and physical properties of cryolite—Part 11:Determination of sulphur content by X-ray fluorescence spectrometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
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
GB/T 6609.27-2009 Chemical analysis methods and determination of physical performance of alumina - Part 27: Partical size analysis - Method using electriformed sieves (USD) via email in 1-3 business day VALID
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 62.3-2005 Carbonaceous materials used in the production of aluminium?Sampling methods?Part 3:Prebaked blocks via email in 1-3 business day please email coc@codeofchina.com for quotation
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 62.2-2005 Carbonaceous materials used in the production of aluminium—Sampling methods— (USD) via email in 1-3 business day
GB/T 6609.6-2004 Chemical analysis methods and Determination of physical performance of alumina Determination of potassium oxide content-Flame photometric method (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 6609.37-2009 Chemical analysis methods and determination of physical performance of alumina - Part 37: Determination of the particles size content less then 20μm (USD) via email in 1-3 business day VALID
YS/T 581.14-2006 Determination of chemical contents and physical properties of aluminium fluoride Part 14: Determination of untamped density (USD) via email in 1-3 business day VALID
GB/T 6609.17-2004 Chemical analysis methods and Determination of physical performance of alumina Determination of phosphorus pentoxide content-Molybdenum blue spectrophotometric method via email in VALID please email coc@codeofchina.com for quotation
GB/T 6609.26-2004 Chemical analysis methods and Determination of physical performance of alumina Determination of absolute density-Pycnometer method (USD) via email in 1-3 business day VALID
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