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YS/T 958-2014 Methods for chemical analysis of silver—Determination of copper、bismuth、iron、lead、antimony、palladium、selenium and tellurium contents—Inductively coupled plasma-atomic emission spectrometry (USD) via email in 1-3 business day VALID
YS/T 276.4-1994 via email in ABOLISHED please email coc@codeofchina.com for quotation
YS/T 43-1992 (USD) via email in 1-3 business day ABOLISHED
YS/T 84-1994 (USD) via email in 1-3 business day ABOLISHED
YS/T 372.10-2006 Methods for elementary analysis of precious alloy -- Determination of nickel content in AuNi and PdNi alloy -- EDTA complex metric titration via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 583-2006 Brass rods and bars for forging plumbing fittings (USD) via email in 1-3 business day ABOLISHED
YS/T 991-2014 Copper anode mud (USD) via email in 1-3 business day VALID
YS/T 445.7-2001 Methods for chemical analysis of silver concentrates -- Determination of lead content via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YS/T 118.1-1992 Methods of determination and calculation of heat balance in metallurgical furnaces for heavy non-ferrous metals (USD) via email in 1-3 business day VALID
YS/T 575.16-2006 Methods for chemical analysis of bauxite -- Determination of phosphorus pentoxide content -- Molybdenum blue spectrophotometric method (USD) via email in 1-3 business day ABOLISHED
YS/T 574.5-2006 Chemical analysis of zirconium powder for electro-vacuum uses The atomic absorption spectrophotometric method for determination of calcium and magnesium (USD) via email in 1-3 business day ABOLISHED
YS/T 575.8-2007 Methods for chemical analysis of bauxite Part 8:Determination of magnesium oxide content Flame atomic absorption spectorphotometric method (USD) via email in 1-3 business day VALID
YS/T 276.1-1994 via email in ABOLISHED please email coc@codeofchina.com for quotation
YS/T 555.3-2009 Methods for chemical analysis of molybdenum concentrate—Determination of arsenic content—Atomic fluorescence spectrometry (USD) via email in 1-3 business day VALID
YS/T 990.12-2014 Methods for chemical analysis of copper matte—Part 12:Determination of aluminum oxide content—Spectrophotometry of chromazurol S (USD) via email in 1-3 business day VALID
YS/T 861.2-2013 Methods for chemical analysis of niobium-titanium alloy—Part 2:Determination of oxygen and nitrogen content—Inert gas fusion infrared/thermal conductivity method (USD) via email in 1-3 business day VALID
YS/T 372.7-1994 (USD) via email in 1-3 business day ABOLISHED
YS/T 372.10-1994 (USD) via email in 1-3 business day ABOLISHED
YS/T 1157.1-2016 Methods for chemical analysis of crude cobalt hydroxide—Part 1:Determination of cobalt content—Potentiometric titration method (USD) via email in 1 business day VALID
YS/T 118.6-1992 Methods of determination and calculation of heat balance in metallurgical furnaces for heavy non-ferrous metals (Fuming furnace) (USD) via email in 1-3 business day VALID
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