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DZ/T 0279.4-2016 Analysis Methods for Regional Geochemical Sample-Part 4:Determination of Gold Content by Plastic Foam Enrichment-Inductively Coupled Plasma Mass pectrometry via email in VALID please email coc@codeofchina.com for quotation
YS/T 556.11-2011 Methods for chemical analysis of antimony concentrates Part 11:Determination of cadmium content -Flame atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
GB/T 3257.10-1999 Methods for chemical analysis of bauxite--Determination of manganese oxide content--Flame atomic absorption spectrophotometric method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YS/T 1050.9-2015 Methods for chemical analysis of lead antimony concentrates—Part 9:Determination of silver content—Flame atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
YS/T 514.12-2006 Methods for chemical analysis of high-titanium slag and rutile The EGTA and CyDTA volumetric methods for the determination of calcium oxide and magnesium oxide content (USD) via email in 1-3 business day ABOLISHED
GB/T 3257.20-1999 Methods for chemical analysis of bauxite--Determination of total carbon content--Non-aqueous titrametric method after combustion via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 1819.12-2004 Methods for chemical analysis of tin concentrates—Determination of silicon dioxide content—The silicomolybdenum blue spectrophotometric method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YS/T 575.7-2006 Methods for chemical analysis of bauxite -- Determination of calcium oxide content -- Flame atomic absorption spectrophotometric method (USD) via email in 1-3 business day ABOLISHED
GB/T 6730.4-1986 Methods for chemical analysis of iron ores; The stannous chloride-mercuric chloride-potassium dichromate volumetric method for the determination of total iron content (USD) via email in 1-3 business day
GB 6730.22-1986 Methods for chemical analysis of iron ores; The diantipyrine methane photometric method for the determination of titanium content (USD) via email in 1-3 business day ABOLISHED
YS/T 235-2007 Molybdenum concentrate via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 6150.5-1985 Methods for chemical analysis of tungsten concentrates; The barium sulfate gravimetric method for the determination of sulfur content (USD) via email in 1-3 business day ABOLISHED
YS/T 575.1-2006 Methods for chemical analysis of bauxite -- Determination of aluminium oxide content -- EDTA titrimetric method (USD) via email in 1-3 business day ABOLISHED
GB/T 1819.17-2006 Methods for chemical analysis of tin concentrates―Determination of mercury content―The cold vapor atomic absorption spectrometric method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 17414.1-1998 Method for chemical analysis of beryllium ores-Determination of beryllium content-Eriochrome cyanine R photometric method (USD) via email in 1-3 business day ABOLISHED
GB/T 14353.3-1993 Methods for chemical analysis of copper ores lead ores and zinc ores. Determination of zinc (USD) via email in 1-3 business day ABOLISHED
YS/T 820.19-2012 Methods for chemical analysis of laterite nickel ores—Part 19:Determination of aluminum,chromium,iron,magnesium,manganese,nickel and silicon contents—Energy-dispersive X-ray fluorescence spectrometry (USD) via email in 1-3 business day VALID
YS/T 556.1-2009 Methods for chemical analysis of antimony concentrates—Part 1:Determination of antimony content—Cerium sulfate titration method (USD) via email in 1-3 business day VALID
GB/T 8151.9-2000 Methods for chemical analysis of zinc concentrates-Determination of fluorine content (USD) via email in 1-3 business day ABOLISHED
GB/T 14260-1993 General rules for sampling and sample preparation of heavy nonferrous metals flotation concentrates in bulk (USD) via email in 1-3 business day ABOLISHED
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