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GB/T 3257.21-1999 Methods for chemical analysis of bauxite--Determination of the loss on ignition--Gravimetric method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YS/T 240.10-1994 Chemical analysis of bismuth concentrate The chromazurol S photometric method for determination of aluminium oxide (USD) via email in 1-3 business day ABOLISHED
GB/T 14352.11-1993 Methods for chemical analysis of tungsten ores and molybdenum ores. Determination of bismuth content. Flame atomic absorption spectrometric method (USD) via email in 1-3 business day ABOLISHED
GB/T 14353.12-1993 Methods for chemical analysis of copper ores lead ores and zinc ores. Determination of sulfur (USD) via email in 1-3 business day ABOLISHED
GB/T 15924-1995 Method for chemical analysis of tin ores—Determination of tin content—Iodometric method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 1511-1979 Method for determination of calcium oxide content in manganese ores;Volumetric method (USD) via email in 1-3 business day ABOLISHED
YS/T 340-2014 Nickel concentrate (USD) via email in 1-3 business day VALID
GB/T 3257.9-1999 Methods for chemical analysis of bauxite--Determination of potassium oxide and sodium oxide content--Flame atomic absorption spectrophotometric method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 3884.10-2000 Methods for chemical analysis of copper concentrates-Determination of antimony content (USD) via email in 1-3 business day ABOLISHED
GB/T 14352.5-1993 Mehtoss for chemical analysis of tungsten ores molybdenum ores. Determination of zinc content. Flame atomic absorption spectrometric method (USD) via email in 1-3 business day ABOLISHED
GB/T 14353.17-2014 Methods for chemical analysis of copper ores, lead ores and zinc ores—Part 17:Determination of thallium content (USD) via email in 1-3 business day VALID
YS/T 509.2-2006 Methods for chemical analysis of sqodumenite and lepidolite concentrates The atomic absorption spectrophotometric method for determination of rubidium oxide and caesium oxide contents (USD) via email in 1-3 business day ABOLISHED
GB/T 3884.1-2000 Methods for chemical analysis of copper concentrates-Determination of copper content (USD) via email in 1-3 business day ABOLISHED
YS/T 556.6-2009 Methods for chemical analysis of antimony concentrates—Part 6:Determination of selenium content—Hydride generation-atomic fluorescence spectrometric method (USD) via email in 1-3 business day VALID
YS/T 514.4-2006 Methods for chemical analysis of high-titanium slag and rutile The direct combustion-coulometric method for the determination of total cabon content (USD) via email in 1-3 business day ABOLISHED
GB/T 10122-1988 Iron ores (sinter and pellets)-Sampling and sample preparation for physical testing via email in 1-3 business day please email coc@codeofchina.com for quotation
GB/T 14353.14-1993 Methods for chemical analysis of copper ores lead ores and zinc ores. Determination of germanium content. Phenylfluorone-cetyltrimethyl ammonium bromide photometric method after carbon tetrachloride extraction (USD) via email in 1-3 business day ABOLISHED
GB 6730.44-1986 Methods for chemical analysis of iron ores; The 1-(2-pyridylazo)-2-naphthol photometric method for the determination of zinc content (USD) via email in 1-3 business day ABOLISHED
GB/T 14352.2-1993 Methods for chemical analysis of tungsten ores and molybdenum ores. Determination of molybdenum content. potassium thiocynate photometric method (USD) via email in 1-3 business day ABOLISHED
GB/T 14352.4-1993 Methods for chemical analysis of tungsten ores molybdenum ores. Determination of copper content. Flame atomic absorption spectrometric method (USD) via email in 1-3 business day ABOLISHED
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