Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YS/T 281.3-2011 Methods for chemical analysis of cobalt- Part 3:Determination of silicon content-Molybdenum blue spectrophotometery $150.00 via email in 1~3 business day valid
YS/T 281.4-2011 Methods for chemical analysis of cobalt—Part 4:Determination of arsenic content—Molybdenum blue spectrophotometry $120.00 via email in 1~3 business day valid
YS/T 281.5-2011 Methods for chemical analysis of cobalt—Part 5:Determination of phosphorus content—Molybdenum blue spectrophotometry $120.00 via email in 1~3 business day valid
YS/T 281.6-2011 Methods for chemical analysis of cobalt- Part 6:Determination of magnesium content-Flame atomic absorption spectrometery $130.00 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 $130.00 via email in 1~3 business day valid
YS/T 281.8-2011 Methods for chemical analysis of cobalt- Part 8:Determination of cadmium content-Flame atomic absorption spectrometery $130.00 via email in 1~3 business day valid
YS/T 281.9-2011 Methods for chemical analysis of cobalt- Part 9:Determination of lead content-Flame atomic absorption spectrometery $120.00 via email in 1~3 business day valid
YS/T 349.1-2009 Methods for chemical analysis of cobalt sulfide concentrate—Part 1:Determination of cobalt content—Potentiometric titration method $120.00 via email in 1~3 business day valid
YS/T 349.2-2010 Methods for chemical analysis of cobalt sulfide concentrate - Part 2: Determination of copper content - Flame atomic absorption spectrometry $100.00 via email in 1~3 business day superseded
YS/T 349.3-2010 Methods for chemical analysis of cobalt sulfide concentrate—Part 3:Determination of manganese content—Flame atomic absorption spectrometry $120.00 via email in 1~3 business day valid
YS/T 349.4-2010 Methods for chemical analysis of cobalt sulfide concentrate - Part 4: Determination of silicon dioxide - Potassium silicofluoride capacity method $100.00 via email in 1~3 business day valid
YS/T 501-2006 Determination of thorium dioxide in thorium-tungsten alloys -- weight method $184.00 via email in 1~3 business day valid
YS/T 502-2006 Determination of rhenium in rhenium-tungsten alloys -- spectrophotometric method using dimethylglyoxime $70.00 via email in 1~3 business day to be superseded
YS/T 507-2006 Technical requirements of hydro-cinnabar $164.00 via email in 1~3 business day valid
YS/T 508-2006 Method for chemical analysis of tungsten-molybdenum alloy The EDTA volumetric method for the determination of molybdenum content $180.00 via email in 1~3 business day abolished
YS/T 520.1-2006 Methods for chemical analysis of gallium The 2 9-dimethy-4 7-diphenyl-1 10-phenanthroline photometric method for the determination of copper content $184.00 via email in 1~3 business day superseded
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 $140.00 via email in 1~3 business day valid
YS/T 520.10-2006 Methods for chemical analysis of gallium The atomic absorption spectrophotometric method for the determination of zine content $184.00 via email in 1~3 business day superseded
YS/T 520.10-2007 Chemical analysis of gallium Part 10 Determination of zinc content The atomic absorption spectral method $140.00 via email in 1~3 business day valid
YS/T 520.11-2006 Methods for chemical analysis of gallium The cold vapor atomic absorption spectrophotometric method for the determination of mercury content $184.00 via email in 1~3 business day superseded
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