Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 15249.5-2009 Methods for chemical analysis of crude gold - Part 5: Determination of mercury content - Cold atomic absorption spectrometry 90.0 via email in 1~3 business day valid
GB 1489-1979 Amperometric titration method for chemical analysis of palladium-iridium alloys 15.0 via email in 1~3 business day abolished
GB/T 11066.2-1989 Gold-Determination of silver content-Flame atomic absorption spectometric method 45.0 via email in 1~3 business day abolished
YS/T 375.5-1994 15.0 via email in 1~3 business day abolished
GB/T 25934.1-2010 Methods for chemical analysis of high purity gold - Part 1: Ethyl acetate extraction separation - Inductively coupled plasma - atomic emission spectrometry - Determination of impuri 180.0 via email in 1~3 business day valid
YS/T 362-2006 Determination of trace impurities in purity palladium by atomic emission spectrometric 60.0 via email in 1~3 business day valid
GB/T 15249.4-2009 Methods for chemical analysis of crude gold - Part 4: Determination of lead content - EDTA titrimetric method 90.0 via email in 1~3 business day valid
GB/T 15072.11-1994 Gold alloys-Determination of gadolinium content 30.0 via email in 1~3 business day abolished
GB/T 18307-2001 Methods for chemical analysis of crude silver 120.0 via email in 1~3 business day valid
YS/T 372.5-1994 15.0 via email in 1~3 business day abolished
YS/T 374.4-1994 184.0 via email in business day abolished
YS/T 372.13-1994 30.0 via email in 1~3 business day abolished
YS/T 370-2006 Precious metals and alloys - Preparation method for metallographic samples 75.0 via email in 1~3 business day superseded
YS/T 372.7-1994 15.0 via email in 1~3 business day abolished
GB/T 1485-1979 Method for chemical analysis of platinum-rhodium alloys 15.0 via email in 1~3 business day abolished
GB/T 11067.1-1989 Silver-Determination of silver content-Silver chloride precopitation-Flame atomic absorption spectrometric method 45.0 via email in 1~3 business day superseded
GB/T 11067.1-2006 Methods for chemical analysis of silver - Determination of silver content - Silver chloride precipitation-Flame atomic absorption spectrometric method 90.0 via email in 1~3 business day valid
GB/T 15072.15-1994 Gold,silver and palladium alloys-Determination of nickel,zinc and manganese contents 45.0 via email in 1~3 business day abolished
GB/T 15072.3-1994 Gold,platinum and palladium alloys-Determination of platinum content 60.0 via email in 1~3 business day abolished
YS/T 445.9-2001 Methods for chemical analysis of silver concentrates - Determination of lead and zinc contents 75.0 via email in 1~3 business day valid
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