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YS/T 1050.9-2015 Methods for chemical analysis of lead antimony concentrates―Part 9:Determination of silver content―Flame atomic absorption spectrometric method 105.0 via email in 1~3 business day valid
YS/T 556.10-2011 Methods for chemical analysis of antimony concentrates Part 10:Determination of copper content -Flame atomic absorption spectrometric method 90.0 via email in 1~3 business day valid
YS/T 556.4-2009 Methods for chemical analysis of antimony concentrates—Part 4:Determination of hygroscopic moisture content—Weighing method 90.0 via email in 1~3 business day valid
GB/T 30083-2013 Copper, Lead and Zinc Ores and Concentrates - Precision and Bias of Mass Measurement Techniques 580.0 via email in 1~3 business day valid
YS/T 301-2007 Cobalt Concentrates 150.0 via email in 1~3 business day valid
GB/T 4102.7-1983 Methods for chemical analysis of high-titanium slag and rutile;The gravimetric method for the determination of silicon dioxide content 30.0 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 75.0 via email in 1~3 business day abolished
YS/T 461.2-2003 The methods for chemical analysis of lead and zinc bulk concentrates - The determination of iron content - The Na2EDTA titrimetric method 75.0 via email in 1~3 business day superseded
YS/T 575.18-2006 Methods for chemical analysis of bauxite -- Determination of total carbon content -- Non-aqueous titrimetric method after combustion 75.0 via email in 1~3 business day abolished
GB 3497-1983 15.0 via email in 1~3 business day superseded
YS/T 556.5-2009 Methods for chemical analysis of antimony concentrates—Part 5:Determination of zinc content—Flame atomic absorption spectrometric method 90.0 via email in 1~3 business day valid
YS/T 575.16-2006 Methods for chemical analysis of bauxite -- Determination of phosphorus pentoxide content -- Molybdenum blue spectrophotometric method 105.0 via email in 1~3 business day superseded
HG/T 2956.8-2001 Ascharite ores - Determination of loss on ignition - Gravimetric method 30.0 via email in 1~3 business day valid
YS/T 575.13-2006 Methods for chemical analysis of bauxite -- Determination of zinc content -- Flame atomic absorption spectrophotometric method 90.0 via email in 1~3 business day abolished
GB/T 3257.5-1999 Methods for chemical analysis of bauxite--Determination of iron oxide content--Orthophenanthroline photometric method 60.0 via email in 1~3 business day abolished
YS/T 1050.4-2015 Methods for chemical analysis of lead antimony concentrates—Part 4:Determination of zinc content—Na2EDTA titration method 105.0 via email in 1~3 business day valid
YS/T 299-1994 Artificial rutile 15.0 via email in 1~3 business day abolished
GB/T 27674-2011 Copper,lead and ainc sulfide concentrates-Determination of hygroscopic moisture in the analysis sample-Gravimetric method 170.0 via email in 1~3 business day valid
YS/T 514.7-2006 Methods for chemical analysis of high-titanium slag and rutile The gravimetric method for the determination of sillicon dioxide content 30.0 via email in 1~3 business day abolished
GB/T 15923-1995 Method for chemical analysis of nickel ores―Determination of nickel content―Flame atomic absorption spectrometric method 75.0 via email in 1~3 business day abolished
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