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GB/T 5122.8-1985 Methods for chemical analysis of brass-The chromazurol S photometric method for the determination (USD) via email in 1-3 business day ABOLISHED
YS/T 990.3-2014 Methods for chemical analysis of copper matte—Part 3:Determination of sulfur content—Gravimetric method and combustion titration method (USD) via email in 1-3 business day VALID
GB 5122.10-1985 (USD) via email in 1-3 business day ABOLISHED
GB 8648.16-1988 (USD) via email in 1-3 business day ABOLISHED
GB/T 10574.7-1989 Tin-lead solders-Determination of copper content-2,9-dimethyl-1,10-phenanthroline spetrophotometri (USD) via email in 1-3 business day ABOLISHED
YS/T 536.11-2006 Methods for chemical analysis of bismuth -- Determination of mercury content -- Cold vapour atomic absorption spectrometric method (USD) via email in 1-3 business day ABOLISHED
YS/T 281.4-2011 Methods for chemical analysis of cobalt—Part 4:Determination of arsenic content—Molybdenum blue spectrophotometry (USD) via email in 1-3 business day VALID
GB/T 10574.11-2017 Methods for chemical analysis of tin-lead solders—Part 11:Determination of phosphorus content—Crystal violet phosphorus-vanadium-molybdeum heteropoly acid spectrophotometry (USD) via email in 1-3 business day VALID
GB/T 4103.9-2012 Methods for chemical analysis of lead and lead alloys - Part 9: Determination of calcium content (USD) via email in 1-3 business day VALID
GB/T 4103.13-2012 Methods for chemical analysis of lead and lead alloys - Part 13: Determination of aluminium content (USD) via email in 1-3 business day VALID
GB/T 3260.10-2000 Methods for chemical analysis of tin-Determination of sulphur content (USD) via email in 1-3 business day ABOLISHED
YS/T 475.7-2005 Methods for chemical analysis of cast bearing metals -- Determination of lead、copper 、iron 、bismuth 、zinc 、cadmiumm 、content 、-- AAS method (USD) via email in 1-3 business day VALID
GB/T 5121.5-1996 Copper and copperr alloys-Determination of nickl content via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB 8002.15-1987 (USD) via email in 1-3 business day ABOLISHED
YS/T 716.7-2016 Methods for chemical analysis of low grade blister—Part 7:Determination of platinum and palladium contents—Fire assay collection-inductively coupled plasma-atomic emission spectrometric methods and flame atomic absorption spectrometric methods (USD) via email in 1-3 business day VALID
YS/T 276.2-2011 Methods for chemical analysis of indium Part 2:Determination of tin content-Phenylfluorone-cetyltrimethyl ammonium bromide spectrophotometry (USD) via email in 1-3 business day VALID
YS/T 227.10-2010 Methods for chemical analysis of tellurium—Part 10:Determination of arsenic content—Hydride generation-atomic fluorescence spectrometry (USD) via email in 1-3 business day VALID
GB/T 4372.4-2015 Methods for chemical analysis of zincoxide produced by direct process—Part 4:Determination of cadmium oxide content—Flame atomic absorption spectrometry method (USD) via email in 1-3 business day VALID
GB 6520.3-1986 (USD) via email in 1-3 business day ABOLISHED
GB/T 8647.5-1988 Nickel; Determination of magnesium content; Flame atomic absorption spectrophotometric method (USD) via email in 1-3 business day ABOLISHED
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