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GB/T 11067.1-1989 Silver-Determination of silver content-Silver chloride precopitation-Flame atomic absorption spectrometric method (USD) via email in 1-3 business day ABOLISHED
GB/T 15072.1-1994 Gold,palladium alloys.Determination of gold content (USD) via email in 1-3 business day ABOLISHED
GB/T 15072.2-1994 Silver alloys-Determination of silver content (USD) via email in 1-3 business day ABOLISHED
GB/T 11066.2-1989 Gold-Determination of silver content-Flame atomic absorption spectometric method (USD) via email in 1-3 business day ABOLISHED
GB/T 11066.3-1989 Gold-Determination of iron content-Flame atomic absorption spectrometric method (USD) via email in 1-3 business day ABOLISHED
YS/T 372.12-1994 (USD) via email in 1-3 business day ABOLISHED
GB 1489-1979 Amperometric titration method for chemical analysis of palladium-iridium alloys (USD) via email in 1-3 business day ABOLISHED
YS/T 374.4-1994 (USD) via email in 1-3 business day ABOLISHED
YS/T 372.17-2006 Methods for elementary analysis of precious alloy -- Determination of tungsten and rhenium content -- Tungstic acid gravimetry and thiourea spectrophotometry via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 372.9-1994 (USD) via email in 1-3 business day ABOLISHED
YS/T 372.14-2006 Methods for elementary analysis of precious alloy -- Determination of magnesium content -- Potentiometer titration using potassium permanganate via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 371-1994 (USD) via email in 1-3 business day ABOLISHED
YS/T 372.14-1994 (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 11066.9-2009 Methods for chemical analysis of gold—Determination of arsenic and tin contents—Hydride generation-atomic fluorescence spectrometry (USD) via email in 1-3 business day VALID
YS/T 372.8-2006 Methods for elementary analysis of precious alloy -- Determination of cobalt content in PtCo alloy -- EDTA complex metric titration via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 17473.1-1998 Test methods of precious metal pastes used for thick film microelectronics--Determination of solids content via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YS/T 372.12-2006 Methods for elementary analysis of precious alloy -- Determination of zinc content -- EDTA complex metric titration via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 372.5-2006 Methods for elementary analysis of precious alloy -- Determination of copper content in PtCu alloy -- EDTA complex metric titration via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 445.9-2001 Methods for chemical analysis of silver concentrates -- Determination of lead and zinc contents (USD) via email in 1-3 business day ABOLISHED
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