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GB/T 4372.7-2014 Methods for chemical analysis of zinc oxide produced by direct process—Part 7:Determinantion of ferric oxide content—Flame atomic absorption spectrometry method (USD) via email in 1-3 business day VALID
GB 6520.9-1986 (USD) via email in 1-3 business day ABOLISHED
GB 5121.11-1985 (USD) via email in 1-3 business day ABOLISHED
GB 5119.6-1985 (USD) via email in 1-3 business day ABOLISHED
GB/T 5121.21-2008 Methods for chemical analysis of copper and copper alloys—Part 19:Determination of silver content (USD) via email in 1-3 business day VALID
GB/T 3884.6-2012 Methods for chemical analysis of copper concentrates - Part 6: Determination of lead,zinc,cadmium and nickel content - Flame atomic absorption spectrometry method (USD) via email in 1-3 business day VALID
YS/T 248.1-2007 Methods for chemical analysis of crude lead-Determination of lead content-Na2DETA titrimetric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB 8550.6-1987 (USD) via email in 1-3 business day ABOLISHED
GB/T 4372.1-2001 Methods for chemical analysis of zinc oxide produced by direct process-Determination of zinc oxide content-Na2 EDTA titration method (USD) via email in 1-3 business day ABOLISHED
YS/T 238.4-1994 (USD) via email in 1-3 business day ABOLISHED
YS/T 35.4-1992 (USD) via email in 1-3 business day ABOLISHED
GB/T 10574.13-1989 Tin-lead solders-Determination of phosphorus content-Phosphor-vanadium-molybdium poly acid-crystal (USD) via email in 1-3 business day ABOLISHED
GB 8002.10-1987 (USD) via email in 1-3 business day ABOLISHED
GB/T 3884.18-2014 arsenic,antimony,bismuth,lead,zinc,nickel,cadmium,cobalt,magnesium oxide,calcium oxide contents—Inductively coupled plasma atomic emission spectrometry (USD) via email in 1-3 business day VALID
GB 8550.2-1987 (USD) via email in 1-3 business day ABOLISHED
GB/T 5121.2-2008 Methods for chemical analysis of copper and copper alloys—Part 2:Determination of phosphorus content (USD) via email in 1-3 business day VALID
YS/T 997.2-2014 Methods for chemical analysis of antimony-doped tin oxide—Part 2:Determination of antimony content—Cerium sulfate titration method (USD) via email in 1-3 business day VALID
YS/T 707-2009 Methods for chemical analysis of ferronickel carbonyl powder—Determination of nickel content—Dimethylglyoxime gravimetric method (USD) via email in 1-3 business day VALID
YS/T 229.2-2013 Methods for chemical analysis of high pure lead—Part 2:Determination of arsenic content—Atomic fluorescence spectrometry (USD) via email in 1-3 business day VALID
YS/T 229.1-2013 Methods for chemical analysis of high pure lead—Part 1:Determination of silver, copper, bismuth, aluminum, nickel, tin, magnesium and iron contents—Atomic emission spectrometer (USD) via email in 1-3 business day VALID
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