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GB/T 12690.27-1990 Rare-earth metals and their oxides-Determination of ignition loss-Gravimetric method 15.0 via email in 1~3 business day abolished
GB/T 2967-1989 Cast tungsten carbide 30.0 via email in 1~3 business day superseded
GB/T 23273.6-2009 Methods for chemical analysis of cobalt oxalate - Part 6: Determination of chlorine ion content - Ion selective electrode method 110.0 via email in 1~3 business day valid
YS/T 1011-2014 105.0 via email in 1~3 business day valid
YS/T 540.4-2006 Vanadium -- Determination of iron content -- Phenanthrline spectrophotometric method 30.0 via email in 1~3 business day valid
GB/T 11071-2006 Zone-refined germanium ingot 150.0 via email in 1~3 business day valid
GB/T 2592.4-1981 Thallium;Determination of zinc content;Dithizone extraction photometric method 30.0 via email in 1~3 business day abolished
GB/T 13747.15-1992 and zirconium alloys - Determination of boron content - Curcumin spectrophotometric method 30.0 via email in 1~3 business day to be abolished
GB/T 13747.7-1992 and zirconium alloys - Determination of manganese content-Patassium periodate spectrophotometric method 30.0 via email in 1~3 business day valid
YS/T 349.2-2010 Methods for chemical analysis of cobalt sulfide concentrate - Part 2: Determination of copper content - Flame atomic absorption spectrometry 105.0 via email in 1~3 business day valid
GB/T 1422-1989 Iridum powder 105.0 via email in 1~3 business day abolished
YS/T 540.5-2006 Vanadium -- Determination of iron content -- Isoanyl alcohol extraction spectrophotometric method 30.0 via email in 1~3 business day valid
YS/T 554-2006 Lithium niobate single crystals 135.0 via email in 1~3 business day abolished
YS/T 520.10-2006 Methods for chemical analysis of gallium The atomic absorption spectrophotometric method for the determination of zine content 60.0 via email in 1~3 business day abolished
GB/T 15076.4-1994 Methods for chemical analysis of tantalum and niobium-Determination of iron content 45.0 via email in 1~3 business day valid
YS/T 536.13-2009 Methods for chemical analysis of bismuth - Determination of cadmium content - Electrothermal atomic absorption spectrometric method 105.0 via email in 1~3 business day valid
GB/T 15072.13-1994 Silver alloys-Determination of cerium content 15.0 via email in 1~3 business day abolished
YS/T 281.11-2011 Methods for chemical analysis of cobalt- Part 11:Determination of copper and manganese contents-Flame atomic absorption spectrometery 105.0 via email in 1~3 business day valid
YS/T 281.8-2011 Methods for chemical analysis of cobalt- Part 8:Determination of cadmium content-Flame atomic absorption spectrometery 90.0 via email in 1~3 business day valid
YS/T 281.16-2011 Methods for chemical analysis of cobalt- Part 16:Determination of arsenic cadmium copper zinc.lead bismuth tin antimony silicon manganese iron nickel aluminum and magnesium content-Direct current arc atomic emission spectrometery 225.0 via email in 1~3 business day valid
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