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GB/T 5122.2-1985 Methods for chemical analysis of brass--The electrolytic separation-EDTA titrimetric method for the determination of lead content via email in ABOLISHED please email coc@codeofchina.com for quotation
GB/T 12689.5-2004 The methods for chemical analysis of zinc and zinc alloys?The determination of iron content?The sultosalicylic acid spectrometric method and the flame atomic absorption spectrometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 521.5-2009 Methods for chemical analysis of blister copper—Part 5:Determination of zinc and nickel contents—Flame atomic absorption spectrometry (USD) via email in 1-3 business day VALID
GB/T 10574.12-2003 Methods for chemical analysis of tin-lead solders-Determination of sulphur content via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB 8002.5-1987 (USD) via email in 1-3 business day ABOLISHED
GB/T 4372.5-2001 Methods for chemical analysis of zinc oxide produced by direct process-Determination of zinc oxide manganese content-Atomic absorption spectrometry method (USD) via email in 1-3 business day ABOLISHED
GB/T 10567.2-1997 Wrought copper and copper alloys-Detection of residual stress-Ammonia test (USD) via email in 1-3 business day ABOLISHED
GB/T 5121.8-1996 Copper and copper alloys-Determination of oxygen content (USD) via email in 1-3 business day ABOLISHED
GB 5122.18-1985 (USD) via email in 1-3 business day ABOLISHED
GB 3260.1-1982 (USD) via email in 1-3 business day ABOLISHED
GB/T 3260.1-2000 Methods for chemical analysis of tin-Determination of copper content (USD) via email in 1-3 business day ABOLISHED
GB 6520.11-1986 (USD) via email in 1-3 business day ABOLISHED
GB/T 8220.10-1998 Methods for chemical analysis of bismuth-Determination of tin content-Coprecipitation with beryllium-photometric method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 3884.20-2018 Methods for chemical analysis of copper concentrates—Part 20:Determination of mercury content—Solid sampling and direct mercury analysis method (USD) via email in 1-3 business day VALID
GB/T 8647.8-2006 The methods for chemical analysis of nickel - Determination of sulphur content - Infra-red absorption method after high frequency induction furnace combustion via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 10574.14-2017 Methods for chemical analysis of tin-lead solders—Part 14:Determination of tin,lead,antimony,bismuth,silver,copper,zinc,cadmium and arsenic content—Optical emission spectrometry (USD) via email in 1-3 business day VALID
YS/T 281.16-1994 Cobalt -- Determination of carbon content -- Combustion-coulometric method (USD) via email in 1-3 business day VALID
YS/T 36.2-1992 (USD) via email in 1-3 business day ABOLISHED
GB/T 5121.20-2008 Methods for chemical analysis of copper and copper alloys—Part 20:Determination of zirconium content (USD) via email in 1-3 business day VALID
YS/T 746.15-2010 Methods for chemical analysis of lead-free tin-based solders—Part 15:Determination of Germanium content—Salicylfluorone-sim polyethylene glycol phenyl ether spectrophotometry (USD) via email in 1-3 business day VALID
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