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GB/T 12690.26-1990 Rare-earth metals and their oxides--Determination of sodium content--Flame atomic absorption spectrometric method (USD) via email in 1-3 business day ABOLISHED
GB/T 1486-1979 Method for chemical analysis of platinum-ruthenium alloys (USD) via email in 1-3 business day ABOLISHED
GB/T 2592.5-1981 Thallium;Determination of cadmium content;Dithizone extraction photometric method (USD) via email in 1-3 business day ABOLISHED
GB/T 8220.10-1998 Methods for chemical analysis of bismuth-Determination of tin content-Coprecipitation with beryllium-photometric method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YS/T 569.2-2006 Thallium--Determination of iron content--1 10-phenanthroline photometric method (USD) via email in 1-3 business day ABOLISHED
YS/T 520.7-2006 Methods for chemical analysis of gallium The molybdenum blue photometric method for the determination of silicon content (USD) via email in 1-3 business day ABOLISHED
GB/T 12690.14-1990 Lanthanum oxide, cerium oxide, neodymium oxide, gadolinium oxide-Determination of cobalt, iron,mang (USD) via email in 1-3 business day ABOLISHED
GB/T 8639.5-1988 Vanadium; Determination of iron content; Isoamyl alcohol extraction spectrophotometric method (USD) via email in 1-3 business day ABOLISHED
GB/T 4375.8-1984 Methods for chemical analysis of gallium;The ethyl violet photometric method for the determination of indium content (USD) via email in 1-3 business day ABOLISHED
GB/T 15076.12-1994 Methods for chemical analysis of tantalum and niobium-Determination of carbon content (USD) via email in 1-3 business day ABOLISHED
GB/T 14841-1993 Tantalum and tantalum alloy rods and bars via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 15076.8-1994 Methods for chemical analysis of tantalum and niobium-Determination of sulphur content in niobium (USD) via email in 1-3 business day ABOLISHED
YS/T 502-2006 Determination of rhenium in rhenium-tungsten alloys -- spectrophotometric method using dimethylglyoxime (USD) via email in 1-3 business day VALID
GB/T 8639.7-1988 Vanadium; Determination of oxygen content; Impulse fusion-gas chromatographic method (USD) via email in 1-3 business day ABOLISHED
GB/T 13747.22-1992 Zirconium and zirconium alloys-Determination of oxygen content-Inert gas fusion coulometric method (USD) via email in 1-3 business day ABOLISHED
YS/T 536.2-2009 Methods for chemical analysis of bismuth—Determination of iron content—Electrothermal atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
YS/T 281.13-2011 Methods for chemical analysis of cobalt- Part 13:Determination of sulphur content-Infra-red absorption method after high frequency induction furnace combustion (USD) via email in 1-3 business day VALID
YS/T 536.10-2006 Methods for chemical analysis of bismuth -- Determination of tin content -- Coprecipitation with beryllium-photometric method (USD) via email in 1-3 business day ABOLISHED
GB/T 11066.1-1989 Gold-Determination of gold content-Fire assaying method (USD) via email in 1-3 business day ABOLISHED
GB/T 1599-1979 Classification and technical requirements for antimony (USD) via email in 1-3 business day ABOLISHED
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