Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YS/T 445.4-2001 Methods for chemical analysis of silver concentrates - Determination of oxide aluminum content 150.0 via email in 1~3 business day superseded
YS/T 281.8-1994 Cobalt -- Determination of cadmium content -- Flame atomic absorption spectrophotometric method 184.0 via email in 1~3 business day abolished
GB 7216-1987 Gray cast iron metallography 270.0 via email in 1~3 business day abolished
GB/T 4060-1983 Polycrystalline silicon; Examination method; Vacuum zone-melting on boron 184.0 via email in 1~3 business day abolished
GB/T 21994.2-2008 Chemical analysis of magnesium fluoride - Part 2: Determination of moisture content - Gravimetric method 84.0 via email in 1~3 business day valid
GB/T 11112-1989 Non-ferrous metals atmospheric corrosion testing method 130.0 via email in 1~3 business day abolished
YS/T 281.3-1994 Cobalt -- Determination of silicon content -- Molybdenum blue spectrophotometric method 184.0 via email in 1~3 business day abolished
GB/T 20127.10-2006 Steel and alloy - Determination of trace element contents Part 10: Determination of selenium content by hydride generation-atomic fluorescence spectrometric method 160.0 via email in 1~3 business day valid
GB/T 20127.6-2006 Steel and alloy - Determination of trace element contents Part 6: Determination of germanium content by gallic acid oscillopolarographic method 224.0 via email in 1~3 business day abolished
GB/T 5225-1985 Metal materials-Quantitative phase analysis-Value Kmethod of X-ray diffraction 100.0 via email in 1~3 business day abolished
HB 5297.7-2001 Methods for Chemical Analysis of Titanium Alloys - Determination of Chromium Content by Diphenylcarbazide Photometric Method 45.0 via email in 1~3 business day valid
GB/T 21994.3-2008 Chemical analysis of magnesium fluoride - Part 3: Determination of fluoride content - Distillation-thorium nitrate titration volumetric method 124.0 via email in 1~3 business day valid
YS/T 470.2-2004 Methods for chemical analysis of copper-beryllium alloys—Determination of beryllium content—Sodium fluoride titrimetric method 90.0 via email in 1~3 business day valid
YS/T 987-2014 Test method for measuring carbon containing compound in chlorosilane—Determination of methyldichlorosilane 165.0 via email in 1~3 business day valid
YS/T 981.2-2014 Methods for chemical analysis of high purity indium—Determination of magnesium,aluminum,iron,nickel,copper,zinc,silver,cadmium,tin and lead—Inductively coupled plasma mass spectrometry 160.0 via email in 1~3 business day valid
HB 7716.9-2002 Spectrometric analysis of titanium alloys Part 9: Determination of manganese content -- Flame atomic absorption spectrometric method 90.0 via email in 1~3 business day valid
YS/T 461.2-2003 The methods for chemical analysis of lead and zinc bulk concentrates - The determination of iron content - The Na2EDTA titrimetric method 224.0 via email in 1~3 business day abolished
YS/T 281.16-1994 Cobalt - Determination of carbon content - Combustion-coulometric method 184.0 via email in 1~3 business day valid
HB 5422.10-1989 Chemical Analysis Method for Copper Alloy - Dimethylglyoxime Precipitation Separation - EDTA Volumetric Method for the Determination of Nickel Content 60.0 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 90.0 via email in 1~3 business day valid


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