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GB/T 12690.15-2018 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 15:Determination of calcium content (USD) via email in 1-3 business day VALID
YS/T 1075.4-2015 Methods for chemical analysis of vanadium-aluminium and molybdenum-aluminium master alloys—Part 4:Determination of vanadium content—Inductively coupled plasma atomic emission spectrometry and ammonium ferrous sulfate titration (USD) via email in 1-3 business day VALID
GB/T 18882.3-2019 Chemical analysis methods for mixed rare earth oxide of ion-adsorption rare earth ore—Part 3:Determination of silicon dioxide content (USD) via email in 1-3 business day VALID
GB/T 18114.7-2010 Chemical analysis methods of rare earth concentrates—Part 7:Determination of iron oxide content—Potassium dichromate titration (USD) via email in 1-3 business day VALID
GB/T 31967.1-2015 Test method for physical property of rare earth permanent magnetic materials—Part 1:Determination of temperature coefficient of magnetic flux (USD) via email in 1-3 business day VALID
YS/T 426.7-2000 Method for chemical analysis of antimony-beryllium pellets—Determination of carbon content—High frequency-infrared absorption method (USD) via email in 1-3 business day VALID
GB/T 8762.5-1988 Yttrium oxide of phosphor grade--Determination of trace rare earth oxide contents--Spectrochemical method and direct spectrographic method (USD) via email in 1 business day ABOLISHED
GB/T 20170.2-2006 Test method of physiical characters of rare earth metals and compounds—Determination on specific surface area of rare earth compounds via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB 8221.2-1987 (USD) via email in 1-3 business day ABOLISHED
GB/T 13747.18-1992 Zirconium and zirconium alloys-Determination of vanadium content-N-benzoyl-N-phenylhydroxylamine spectrophotometric method (USD) via email in 1-3 business day VALID
GB/T 16484.9-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 9:Determination of nickel oxide content—Flame atomic absorption spectrometry (USD) via email in 1-3 business day VALID
GB/T 16478.8-1996 Methods for chemical analysis of thorium nitrate-Determination of silicon content (USD) via email in 1-3 business day ABOLISHED
GB/T 20931.7-2007 Methods for chemical analysis of lithium—Determination of nickel content—α-Furil dioxime spectrophotometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 520.2-2007 Chemical analysis of gallium Part 2 Determination of lead content The 4-(2-pyridylazo)-resorcinol spectrophotometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 16484.10-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of manganese oxide content via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 30457-2013 Test methods of rare earth ultraviolet emission phosphors for fluorescent lamps (USD) via email in 1-3 business day VALID
GB 8221.4-1987 (USD) via email in 1-3 business day ABOLISHED
GB/T 12690.13-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Determination of molybdenum and tungsten content—Inductively coupled plasma atomic emission spectrographi (USD) via email in 1-3 business day VALID
GB/T 15076.16-2008 Methods for chemical analysis of tantalum and niobium - Determination of sodium and potassium contents (USD) via email in 1-3 business day VALID
GB/T 18114.3-2010 Chemical analysis methods of rare earth concentrates—Part 3:Determination of calcium oxide content (USD) via email in 1-3 business day VALID
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