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GB/T 6730.21-2016 Iron ores―Determination of manganse content―Potassium periodate spectrophotometric method 150.0 via email in 1~3 business day valid
GB/T 14352.6-1993 Methods for chemical analysis of tungsten ores molybdenum ores. Determination of cadmium content. Flame atomic absorption spectrometric method 45.0 via email in 1~3 business day abolished
GB/T 2462-1996 Pyrites and concentrate--Determination of effective sulfur content--Combustion neutralization method 90.0 via email in 1~3 business day valid
GB/T 6150.14-1985 Methods for chemical analysis of tungsten concentrates; The molybdenum blue photometric method for the determination of silicon dioxide content 30.0 via email in 1~3 business day abolished
GB/T 14949.4-1994 Manganese ores- Determination of vanadium content 45.0 via email in 1~3 business day valid
GB/T 10322.1-2014 Iron ores―Sampling and sample preparation procedures 910.0 via email in 1~10 business day valid
YS/T 235-1994 Technical requirements for molybdenum concentrate 60.0 via email in 1~3 business day abolished
GB/T 14352.5-2010 Methods for chemical analysis of tungsten ores and molybdenum ores—Part 5:Determination of zinc content 110.0 via email in 1~3 business day valid
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 1047.11-2015 Methods for chemical analysis of copper magnetite―Part 11:Determination of magnet iron content―Potassium dichromate titration method 144.0 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
YS/T 820.11-2012 Methods for Chemical Analysis of Laterite Nickel Ores - Part 11: Determination of Fluorine and Chlorine Contents - Ion Chromatography 180.0 via email in 1~3 business day valid
GB/T 18114.2-2000 Methods for chemical analysis of monazite concentrates-Determination of thorium oxide content 15.0 via email in 1~3 business day abolished
GB/T 6730.70-2013 Iron ores - Determination of total iron content - Titrimetric method after tin(Ⅱ) chloride reduction 200.0 via email in 1~3 business day valid
GB/T 24222-2009 Chromium ores—Determination of moisture of lots 110.0 via email in 1~3 business day valid
YS/T 240.3-1994 C 30.0 via email in 1~3 business day abolished
YS/T 301-2007 Cobalt Concentrates 150.0 via email in 1~3 business day valid
GB/T 24235-2009 Iron ores for shaft direct-reduction feedstocks—Determination of the low temperature reduction-disintegration index and degree of metallization 170.0 via email in 1 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
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