Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YS/T 244.1-1994 Methods for chemical analysis of high purity aluminum The 1.10-phenanthroline-thiocyanate photometric method for the determination of iron content $30.00 via email in 1~3 business day superseded
YS/T 244.1-2008 Chemical analysis methods of high purity aluminum Part 1: Determination of iron content by 1 10-phenanthroline-thiocyanate photometric method $90.00 via email in 1~3 business day valid
YS/T 244.2-1994 Methods for chemical analysis of high purity aluminum The extraction-molybdenum blue photometric method for the determination of silicon content $30.00 via email in 1~3 business day superseded
YS/T 244.2-2008 Chemical analysis methods of high purity aluminum Part 2:Determination of silicon content by extraction-molybdenum blue photometric method $120.00 via email in 1~3 business day valid
YS/T 244.3-1994 Methods for chemical analysis of high purity aluminum The diantipyrylmethane-thiocyanate photometric method for the determination for titanium content $15.00 via email in 1~3 business day superseded
YS/T 244.3-2008 Chemical analysis methods of high purity aluminum Part 3: Determination of titanium content by diantipyrylmethane-thiocyanate photometric method $90.00 via email in 1~3 business day valid
YS/T 244.4-1994 Methods for chemical analysis of high purity aluminum The butylrhodamine B photometric method for the determination of gallium content $15.00 via email in 1~3 business day superseded
YS/T 244.4-2008 Chemical analysis methods of high purity aluminum Part 4: Determination of gallium content by butylrhodamine B photometric method $90.00 via email in 1~3 business day valid
YS/T 244.5-2008 Chemical analysis methods of high purity aluminum Part 5: Determination of copper zinc and lead content by anodic spripping voltammetric method $90.00 via email in 1~3 business day valid
YS/T 244.6-2008 Chemical analysis methods of high purity aluminum Part 6:Determination of silver content by calalyze reaction system of manganese-persulfric acid method $120.00 via email in 1~3 business day valid
YS/T 244.7-2008 Chemical analysis methods of high purity aluminum Part 7:Determination of cadmium content by extraction-dithizone photometric method $120.00 via email in 1~3 business day valid
YS/T 244.8-2008 Chemical analysis methods of high purity aluminum Part 8: Determination of indium content by extraction-crystal violet photometric method $90.00 via email in 1~3 business day valid
YS/T 244.9-2008 Chemical analysis methods of high purity aluminum Part 9: Determination of trace impurities in high pruity aluminumby inductively coupled mass spectrometry $105.00 via email in 1~3 business day superseded
YS/T 245-1994 Sintered molybdenum alloy mandrels for tube rolling $60.00 via email in 1~3 business day superseded
YS/T 245-2011 Sintered molybdenum alloy mandrels for tube-rolling $120.00 via email in 1~3 business day superseded
YS/T 245-2023 Sintered molybdenum alloy mandrels for tube-rolling via email in business day valid
YS/T 246-1994 Lithium ribbon $180.00 via email in 1~3 business day abolished
YS/T 247-1994 Cadmium round bars $15.00 via email in 1~3 business day superseded
YS/T 247-2011 Cadmium rods $180.00 via email in 1~3 business day valid
YS/T 248.1-1994 Methods for chemical analysis of crude lead The EDTA volumetric method for the determination of lead content $30.00 via email in 1~3 business day superseded
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