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GB/T 11067.6-2006 Methods for chemical analysis of silver - Determination of iron contents - Flame atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
GB/T 15076.4-1994 Methods for chemical analysis of tantalum and niobium-Determination of iron content (USD) via email in 1-3 business day VALID
YS/T 372.11-2006 Methods for elementary analysis of precious alloy -- Determination of magnesium content -- EDTA complex metric titration via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 17373-1998 Sampling methods for chemical analysis of crude gold via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 11066.7-2009 Methods for chemical analysis of gold - Determination of silver copper iron lead antimony bismuth palladium magnesium tin nickel manganese and chromium contents - Spark atomic emission spectrometry (USD) via email in 1-3 business day VALID
YS/T 372.2-2006 Methods for elementary analysis of precious alloy—Determiatnion of platinum content—Electricity titration using potassium permanganate via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 23524-2019 Method for chemical analysis of petrochemical spent platinum catalyst—Determination of platinum—Inductively coupled plasma atomic emission spectrometry (USD) via email in 1-3 business day VALID
GB/T 15249.1-2009 Methods for chemical analysis of crude gold - Part 1: Determination of gold content - Fire assay gravimetric method (USD) via email in 1-3 business day VALID
YS/T 365-2006 Determination of trace impurities in high purity platinum by atomic emission sspectrometric via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 372.6-1994 (USD) via email in 1-3 business day ABOLISHED
GB/T 11067.1-2006 Methods for chemical analysis of silver - Determination of silver content - Silver chloride precipitation-Flame atomic absorption spectrometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 15072.6-1994 Platinum,Palladium alloys-Determination of iridium content (USD) via email in 1-3 business day ABOLISHED
YS/T 361-2006 Determination of trace impurities in purity platinium by atomic emission spectrometric via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 362-2006 Determination of trace impurities in purity palladium by atomic emission spectrometric via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 1490-1979 Method for chemical analysis of gold-phosphorus alloys (USD) via email in 1-3 business day ABOLISHED
YS/T 373.5-1994 (USD) via email in 1-3 business day ABOLISHED
GB/T 15072.15-1994 Gold,silver and palladium alloys-Determination of nickel,zinc and manganese contents (USD) via email in 1-3 business day ABOLISHED
YS/T 370-2006 Precious metals and alloys -- Preparation method for metallographic samples via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 25934.3-2010 Methods for chemical analysis of high - purity gold - Part 3: Ethylether extraction separation - Inductively coupled plasma-atomic emission spectrometry - Determinaion of impurity elements contents (USD) via email in 1-3 business day VALID
YS/T 372.19-2006 Method for elementary analysis of precious alloy—Determination of yttrium content—Chlorophosphonazo Ⅲ spectrophotometry via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
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