Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YS/T 445-2001 Methods for Chemical Analysis of Silver Concentrates 210.0 via email in 1~3 business day valid
YS/T 372.14-2006 Methods for elementary analysis of precious alloy -- Determination of magnesium content -- Potentiometer titration using potassium permanganate 60.0 via email in 1~3 business day valid
GB/T 11066.9-2009 Methods for chemical analysis of gold—Determination of arsenic and tin contents—Hydride generation-atomic fluorescence spectrometry 150.0 via email in 1~3 business day valid
YS/T 372.7-2006 Methods for elementary analysis of precious alloy—Determination of cobalt content—EDTA complexometric titration 60.0 via email in 1~3 business day valid
YS/T 374.3-1994 15.0 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
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
GB/T 15072.13-1994 Silver alloys-Determination of cerium content 15.0 via email in 1~3 business day abolished
GB/T 23514-2009 Chemical analysis methods for nuclear-grade Ag-In-Cd alloys 110.0 via email in 1~3 business day valid
GB/T 15249.2-2009 Methods for chemical analysis of crude gold - Part 2: Determination of silver content - Fire assay gravimetric and EDTA titrimetric methods 150.0 via email in 1~3 business day valid
YS/T 372.20-2006 Methods for elementary analysis of precious alloy -- Determination of cadmium content -- Complex metric titration using potassium iodide releasing EDTA 75.0 via email in 1~3 business day valid
GB/T 15072.3-1994 Gold,platinum and palladium alloys-Determination of platinum content 60.0 via email in 1~3 business day abolished
GB/T 15072.18-1994 Gold alloys-Determination of iron content 30.0 via email in 1~3 business day abolished
YS/T 562-2006 Method for chemical analysis of platinum-ruthenium alloys 15.0 via email in 1~3 business day superseded
YS/T 374.7-1994 15.0 via email in 1~3 business day superseded
GB/T 15249.1-1994 Crude Gold-Determination of gold content-Fire assay gravimetric method 45.0 via email in 1~3 business day superseded
YS/T 372.12-2006 Methods for elementary analysis of precious alloy - Determination of zinc content - EDTA complex metric titration 90.0 via email in 1~3 business day valid
GB/T 15249.2-1994 Crude Gold-Determination of silver content-EDTA titrimetric method 30.0 via email in 1~3 business day superseded
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
YS/T 563-2006 Method for chemical analysis of platinum-palladium-rhodium alloys 15.0 via email in 1~3 business day superseded
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