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GB/T 17418.5-1998 Methods for analysis of noble metals in geochemcial samples-Determination of ruthenium and osmium content-Separation by distillation-Catalytic spectrophotometric method (USD) via email in 1-3 business day ABOLISHED
GB/T 17418.1-1998 Methods for analysis of noble metals in geochemcial samples-General rules and regulations (USD) via email in 1-3 business day ABOLISHED
GB/T 17418.3-1998 Methods for analysis of noble metals in geochemcial samples-Determination of palladium content-Preconcentratoin by thiourea-Graphite furnace atomic absorption spectrophotometric method (USD) via email in 1-3 business day ABOLISHED
YS/T 3015.4-2013 Methods for chemical analysis of gold-loaded carbon—Part 4:Determination of copper、iron、calcium and magnesium contents—Inductively coupled plasma-atomic emission spectrometry (USD) via email in 1-3 business day VALID
GB/T 7739.5-2007 Methods for chemical analysis of gold concentrates—Part 5:Determination of lead contents via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 3020-2013 Testing procedure of grinding work index of gold-bearing ore (USD) via email in 1-3 business day VALID
GB/T 7739.3-2019 Methods for chemical analysis of gold concentrates—Part 3:Determination of arsenic content (USD) via email in 1-3 business day TO BE VALID
GB/T 32992-2016 Determination of gold adsorption capacity and rate of activated carbon (USD) via email in 1-3 business day VALID
GB/T 17418.2-1998 Methods for analysis of noble metals in geochemcial samples-Determination of platinum and rhodium content-Preconcentration by thiourea-Catalytic polarographic method (USD) via email in 1-3 business day ABOLISHED
GB/T 20899.14-2017 Methods for chemical analysis of gold ores—Part 14:Determination of thallium content—Inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry (USD) via email in 1-3 business day VALID
GB/T 20899.9-2007 Methods for chemical analysis of gold ores—Part 9:Determination of carbon cotents via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 20899.2-2007 Methods for chemical analysis of gold ores—Part 2:Determination of silver contents via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 433-2001 Silver concentrate (USD) via email in 1-3 business day ABOLISHED
GB/T 7739.9-2007 Methods for chemical analysis of gold concentrates—Part 9:Determination of carbon contents via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 7739.14-2019 Methods for chemical analysis of gold concentrates—Part 14:Determination of thallium content—Inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry (USD) via email in 1-3 business day VALID
GB/T 20899.1-2007 Methods for chemical analysis of gold ores—Part 1:Determination of gold contents via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 20899.7-2007 Methods for chemical analysis of gold ores—Part 7:Determination of iron contents via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
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