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YS/T 235-1994 Technical requirements for molybdenum concentrate 60.0 via email in 1~3 business day abolished
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 17417.2-2010 Method for chemical analysis of rare earth ores—Part 2:Determination of scandium content 110.0 via email in 1~3 business day valid
YS/T 358.4-2011 Methods for chemical analysis of tantalite,columbite concentrate—Part 4:Determination of tungsten trioxide content—Thiocyanate spectrophotometric method 120.0 via email in 1~3 business day valid
YS/T 254.4-2011 Methods for chemical analysis of beryllium concentrate and beryl—Part 4:Determination of lithium oxide contents—Flame atomic absorption spectrometry 120.0 via email in 1~3 business day valid
YB/T 4031-2006 Titanium concentrate(rock minerals) 75.0 via email in 1~3 business day valid
YS/T 394-2007 Titanium tetrachloride 120.0 via email in 1~3 business day valid
YS/T 360-1994 90.0 via email in 1~3 business day abolished
YS/T 358.12-2012 Methods for chemical analysis of tantalite columbite concentrate—Part 12:Determination of water content-Gravimetric method 120.0 via email in 1~3 business day valid
YS/T 394-1994 45.0 via email in 1~3 business day superseded
GB/T 17413.2-1998 Methods for chemical analysis of Lithium, Rubidium and Cesium ores-Determination of Rubidium content-Flame atomic absorption/emission spectrophotometric method 75.0 via email in 1~3 business day superseded
GB/T 17413.1-2010 Methods for chemical analysis of lithium、rubidium and cesium ores—Part 1:Determination of lithium content 110.0 via email in 1~3 business day valid
YS/T 231-2007 Tungsten concentrate 90.0 via email in 1~3 business day superseded
GB/T 18114.9-2000 Methods for chemical analysis of monazite concentrates-Determination of phosphor oxide content 15.0 via email in 1~3 business day abolished
GB/T 17416.1-2010 Method for chemical analysis of zirconium ores—Part 1:Determination of zirconium-hafnium oxide content 110.0 via email in 1~3 business day valid
GB/T 17415.2-2010 Methods for chemical analysis of tantalum and niobium ores—Part 2:Determination of niobium content 110.0 via email in 1~3 business day valid
GB/T 7739.3-1987 Methods for chemical analysis of gold concentrates; The silver diethyldithiocarbamate spectrophotometric method for the determination of arsenic content 30.0 via email in 1~3 business day superseded
YS/T 358.3-2011 Methods for chemical analysis of tantalite,columbite concentrate—Part 3:Determination of silicon dioxide content—Silicomolybdenum blue spectrophotometry and gravimetry 180.0 via email in 1~3 business day valid
YS/T 254.2-2011 Methods for chemical analysis of beryllium concentrate and beryl—Part 2:Determination of ferric oxide content—EDTA titrimetry and sulfosalicylic acid spectrophotometry 180.0 via email in 1~3 business day valid
YB/T 4031-1991 45.0 via email in 1~3 business day superseded
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