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GB/T 8738-1988 Zinc alloy ingots for casting via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 8151.17-2012 Methods for chemical analysis of zinc concentrates—Part 17:Determination of zinc content—Hydroxide precipitation and Na2 EDTA titrimetric method (USD) via email in 1-3 business day VALID
YS/T 248.8-2007 Methods for chemical analysis of crude lead-Determination of zinc content-Flame atomic absorption spectrometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 12689.8-1990 Zinc and zinc alloys—Determination of iron content—Flame atomic absorption spectrometric method via email in ABOLISHED please email coc@codeofchina.com for quotation
GB/T 4372.6-2014 Methods for chemical analysis of zincoxide produced by direct process—Part 6:Testing of metallic zinc (USD) via email in 1-3 business day VALID
GB/T 3253.6-2001 Methods for chemical analysis of antimony-Determination of bismuth content (USD) via email in 1-3 business day ABOLISHED
YS/T 1149.7-2016 Methods for chemical analysis of zinc concentrate roasting—Part 7:Determination of silicon dioxide content—Molybdenum blue spectrophotometry (USD) via email in 1 business day VALID
YS/T 1149.1-2016 Methods for chemical analysis of zinc concentrate roasting—Part 1:Determination of zinc content—Na2EDTA titration method (USD) via email in 1 business day VALID
GB/T 3253.5-2001 Methods for chemical analysis of antimony-Determination of selenium content (USD) via email in 1-3 business day ABOLISHED
GB/T 3260.4-2013 Methods for chemical analysis of tin—Part 4:Determination of lead content—Flame atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
YS/T 1046.4-2015 Methods for chemical analysis of copper slag concentrates—Part 4:Determination of iron content—Potassium dichromate titration method (USD) via email in 1-3 business day VALID
GB/T 4103.6-2012 Methods for chemical analysis of lead and lead alloys - Part 6: Determination of arsenic content (USD) via email in 1-3 business day VALID
YS/T 248.4-2007 Methods for chemical analysis of crude lead-Determination of arsenic content-Molybdoantimonyarsenate blue photometric method and Extraction-Iodometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 1046.2-2015 Methods for chemical analysis of copper slag concentrates—Part 2:Determination of gold and silver contents—Atomic absorption spectrmetry and fire assay method (USD) via email in 1-3 business day VALID
GB/T 13821-1992 Zinc alloy die castings via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 3260.2-2013 Methods for chemical analysis of tin—Part 2:Determination of iron content—1,10-phenanthroline photometric method (USD) via email in 1-3 business day VALID
YS/T 240.1-2007 Methods for chemical analysis of bismuth concentrate-Determination of bismuth content-Na2EDTA titrimetric method (USD) via email in 1-3 business day VALID
YS/T 1046.7-2015 Methods for chemical analysis of copper slag concentrates—Part 7:Determination of arsenic,antimony,bismuth,lead ,zinc and magnesium oxide content—Inductively coupled plasma atomic emission spectrometry (USD) via email in 1-3 business day VALID
GB/T 3260.9-2013 Methods for chemical analysis of tin—Part 9:Determination of sulphur content—Infra-red absorption method after high frequency induction furnace combustion (USD) via email in 1-3 business day VALID
GB/T 26042-2010 Methods for analysis of zinc and zinc alloys—The optical emission spectrometry (USD) via email in 1-3 business day VALID
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