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DZ/T 0279.3-2016 Analysis Methods for Regional Geochemical Sample-Part 3:Determination of Barium,Beryllium,Bismuth etc.15 Elements Content by Inductively Coupled Plasma Mass Spectrometry via email in VALID please email coc@codeofchina.com for quotation
GB/T 14262-1993 Methods for sampling and sample preparation of flotation lead concentrates in bulk via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 8151.15-2005 Methods for chemical analysis of zinc concentrates—Determination of mercury content—Atomic fluorescence spectrometry method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 3257.22-1999 Methods for chemical analysis of bauxite--Preparation of pre-dried test samples via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 15922-2010 Method for chemical analysis of cobalt ores—Determination of cobalt content (USD) via email in 1-3 business day VALID
YS/T 318-1997 Copper concentrate (USD) via email in 1-3 business day ABOLISHED
YS/T 514.1-2006 Methods for chemical analysis of high-titanium slag and rutile The ammonium ferric sulfate volumetric method for the determination of titanium dioxide content (USD) via email in 1-3 business day ABOLISHED
GB/T 3257.16-1999 Methods for chemical analysis of bauxite--Determination of gallium oxide concent--Rhodamine B-extraction photometric method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB 3257.19-1982 (USD) via email in 1-3 business day ABOLISHED
DZ/T 0279.28-2016 Analysis Methods for Regional Geochemical Sample-Part 28:Determination of Sulfur by Burning-Iodine Quantity Method via email in VALID please email coc@codeofchina.com for quotation
GB/T 3257.18-1999 Methods for chemical analysis of bauxite--Determination of sulfur content--Direct combustion-iodometric method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YB/T 5285-1999 via email in ABOLISHED please email coc@codeofchina.com for quotation
YS/T 1050.6-2015 Methods for chemical analysis of lead antimony concentrates—Part 6:Determination of iron content—Cerium sulfate titration method (USD) via email in 1-3 business day VALID
GB/T 14353.15-1993 Methods for chemical analysis of copper ores lead ores and zinc ores. Determination of selenium content. 3,3-diaminobenzidine photometric method (USD) via email in 1-3 business day ABOLISHED
GB/T 8151.14-2000 Methods for chemical analysis of zinc concentrates-Determination of nickel content (USD) via email in 1-3 business day ABOLISHED
YS/T 319-2007 Lead concentrate via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 14353.13-1993 Methods for chemical analysis of copper ores lead ores and zinc ores. Determination of gallium content. Rhodamine B photometric method after butylacetate extraction (USD) via email in 1-3 business day ABOLISHED
YS/T 1050.3-2015 Method for chemical analysis of lead antimony concentrates—Part 3:Determination of arsenic content—The potassium bromate titration method (USD) via email in 1-3 business day VALID
YS/T 950-2014 Methods for sampling and sample preparation of laterite nickel ores in bulk (USD) via email in 1 business day VALID
YS/T 321-2005 Bismuth concentrate (USD) via email in 1-3 business day VALID
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