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YS/T 445.8-2001 Methods for chemical analysis of silver concentrates -- Determination of zinc content via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 11066.1-1989 Gold-Determination of gold content-Fire assaying method 30 (USD) via email in 1-3 business day ABOLISHED
YS/T 445.1-2001 Methods for chemical analysis of silver concentrates -- Determination of gold and silver contents via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 11067.4-2006 Methods for chemical analysis of silver - Determination of antimony content - The inductively coupled plasma atomic emission spectrometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 15072.8-1994 Gold,Palladium and silver alloys-Determination of copper content 60 (USD) via email in 1-3 business day ABOLISHED
YS/T 372.18-2006 Method for elementary analysis of precious alloy—Determination of gadolinium content—Chlorophosphonazo Ⅲ spectrophotometry via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 15249.1-1994 Crude Gold-Determination of gold content-Fire assay gravimetric method 60 (USD) via email in 1-3 business day ABOLISHED
YS/T 361-1994 135 (USD) via email in 1-3 business day ABOLISHED
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