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GB/T 15159-1994 Composite material strips of precious metals and their alloys via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YS/T 536.3-2006 Methods for chemical analysis of bismuth -- Determination of antimony content -- Melachite green photometric method (USD) via email in 1-3 business day ABOLISHED
YS/T 281.14-2011 Methods for chemical analysis of cobalt- Part 14:Determination of carbon content-Infra-red absorption method after high frequency induction furnace combustion (USD) via email in 1-3 business day VALID
GB/T 4700.3-1984 Methods for chemical analysis of calcium-silicon;The EDTA titrimetric method for the determination of aluminum content (USD) via email in 1-3 business day ABOLISHED
YB/T 5313-2006 Methods for chemical analysis of calcium-silicon The EDTA titrimetric method for the determination of calcium content (USD) via email in 1-3 business day ABOLISHED
GB/T 10267.4-1988 Method for analysis of calcium metal-The determination of aluminium by oxine chloroform extraction photometric method (USD) via email in 1-3 business day VALID
GB/T 13747.18-1992 Zirconium and zirconium alloys-Determination of vanadium content-N-benzoyl-N-phenylhydroxylamine spectrophotometric method (USD) via email in 1-3 business day VALID
GB/T 15072.7-1994 Gold alloys-Determination of chromium content (USD) via email in 1-3 business day ABOLISHED
YS/T 536.12-2009 Methods for chemical analysis of bismuth—Determination of nickel content—Electrothermal atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
YS/T 520.2-2007 Chemical analysis of gallium Part 2 Determination of lead content The 4-(2-pyridylazo)-resorcinol spectrophotometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 520.1-2007 Chemical analysis of gallium Part 1 Determination of copper content The 2 9-dimethyl-4 7-diphenyl-1 10-phenanthroline spectrophotometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 540.5-2006 Vanadium -- Determination of iron content -- Isoanyl alcohol extraction spectrophotometric method (USD) via email in 1-3 business day ABOLISHED
YS/T 520.6-2006 Methods for chemical analysis of gallium The salicylfluorone cetylrimethylammonium bromide photometric method for the determination of tin content (USD) via email in 1-3 business day ABOLISHED
GB/T 3312-1982 Determination of thorium dioxide in thorium-tungsten alloys;Weight method (USD) via email in 1-3 business day ABOLISHED
GB/T 14634.2-1993 Rare-earth phosphors with red green blue luminescencefor fluorescent lamp--Measuring method of chromaticity coordinates (USD) via email in 1-3 business day ABOLISHED
YS/T 536.1-2009 Methods for chemical analysis of bismuth—Determination of copper content—Bis-acetaldehyde-oxalyldihydrazone photometric method (USD) via email in 1-3 business day VALID
GB/T 11067.5-2006 Methods for chemical analysis of silver - Determination of lead and bismuth contents - Flame atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
YS/T 520.11-2007 Chemical analysis of gallium Part 11 Determination of hydrargyrum content The cold vapor atomic absorption spectral method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 710.6-2009 Method for chemical analysis of cobalt oxide—Part 6:Determination of calcium,cadmium,copper,iron,magnesium,manganese,nickel,lead,zinc content—Inductively coupled plasma-atomic emission spectromertry (USD) via email in 1-3 business day VALID
YS/T 281.7-2011 Methods for chemical analysis of cobalt- Part 7:Determination of zinc content-Flame atomic absorption spectrometery (USD) via email in 1-3 business day VALID
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