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GB/T 7739.12-2016 Methods for chemical analysis of gold concerntrates—Part 12:Determination of arsenic,mercury,cadmium,lead and bismuth contents—Atomic fluorescence spectrometric method (USD) via email in 1-3 business day VALID
YB 4067-1991 (USD) via email in 1-3 business day VALID
GB/T 20899.11-2007 Methods for chemical analysis of gold ores—Part 11:Determination of arsenic and bismuth contents via email in 1-3 business day please email coc@codeofchina.com for quotation
GB/T 17418.4-2010 Methods for analysis of noble metals in geochemical samples - Part 4: Determination of iridium content - Preconcentration by thiourea-catalytic spectrophotometric method (USD) via email in 1-3 business day VALID
GB/T 17418.6-2010 Methods for analysis of noble metals in geochemical samples—Part 6:Determination of platinum,palladium and gold content—Preconcentration by fire assay-emission spectrometry (USD) via email in 1-3 business day VALID
GB/T 13449-1992 Gold lump ores-Increment sampling and sample preparation-Manual method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 20899.5-2007 Methods for chemical analysis of gold ores—Part 5:Determination of lead contents via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 20899.6-2007 Methods for chemical analaysis of gold ores—Part 6:Determination of zinc contents via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
DB37/T 3198-2018 Implementation Guidelines for the Management and Control System of Risk Classification for Production Safety of Underground gold mining via email in VALID please email coc@codeofchina.com for quotation
GB/T 7739.8-2007 Methods for chemical analysis of gold concentrates—Part 8:Determination of sulfur contents via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 7739.1-2007 Methods for chemical analysis of gold concentrates—Part 1:Determination of gold and silver contents via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YB/T 2430-1988 Gold concentrates (USD) via email in 1 business day ABOLISHED
GB/T 20899.13-2017 Methods for chemical analysis of gold ores—Part 13:Determination of lead,zinc,bismuth,cadmium,chromium,arsenic and mercury contents—Inductively coupled plasma atomic emission spectrometry (USD) via email in 1-3 business day VALID
GB/T 7739.4-2007 Methodds for chemical analysis of gold concentrates—Part 4:Determination of copper contents via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 7739.10-2007 Methods for chemical analysis of gold concentrates—Part 10:Determination of antimony contents via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 7739.6-2007 Methods for chemical analysis of gold concentrates—Part 6:Determination of zinc contents via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 7739.2-2019 Methods for chemical analysis of gold concentrates—Part 2:Determination of silver content—Flame atomic absorption spectrometric method (USD) via email in 1-3 business day TO BE VALID
GB/T 7739.1-2019 Methods for chemical analysis of gold concentrates—Part 1:Determination of gold and silver contents (USD) via email in 1-3 business day TO BE VALID
GB/T 20899.3-2007 Methods for chemical analysis of gold ores—Part 3:Determination of arsenic contents via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB 4101.2-1983 (USD) via email in 1-3 business day ABOLISHED
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