Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YS/T 574.4-2009 Methods for chemical analysis of zirconium powder for electro-vacuum uses—The molybdenum blue spectrophotometric method for determination of phosphorus 90.0 via email in 1~3 business day valid
GB/T 11072-1989 Indium antimonide polycrystal, single crystals and as-cut slices 120.0 via email in 1~3 business day abolished
GB/T 14991-1994 Deformable permanent-magnet steels 90.0 via email in 1~3 business day abolished
YS/T 281.3-1994 Cobalt -- Determination of silicon content -- Molybdenum blue spectrophotometric method 30.0 via email in 1~3 business day abolished
GB/T 6481-1994 Hollow hexagonal drill rods with tapered connection for rock drilling 60.0 via email in 1~3 business day abolished
HB 6731.11-2005 Methods for spectrometric analysis of aluminium alloys - Part 11: Determination of beryllium content by flame atomic absorption spectrometric method 90.0 via email in 1~3 business day valid
GB/T 7731.12-2008 Ferrotungsten - Determination of sulfur content - Infrared absorption method and combustion titration method 120.0 via email in 1~3 business day valid
YS/T 981.4-2014 105.0 via email in 1~3 business day valid
YS/T 645-2007 Method for analysis of gold compounds determination of gold content potentiometric titration using ferrous sulfate 60.0 via email in 1~3 business day valid
YB/T 5209-2010 Electric-welded steel tubes for cardan shaft 180.0 via email in 1~3 business day valid
GB/T 4324.15-2008 Methods for chemical analysis of tungsten - Determination of magnesium content - The flame atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry 120.0 via email in 1~3 business day valid
YB/T 160-1999 Performance testing methods for burners of metallurgical industrial-furnaces 195.0 via email in 1~3 business day valid
YS/T 445-2001 Methods for Chemical Analysis of Silver Concentrates 210.0 via email in 1~3 business day valid
YB/T 4270-2012 Operation specifications of converter vaporization recovery steam generation system via email in business day valid
GB/T 6524-2003 Metallic powders—Determination of particle size distribution by gravitational sedimentation in a liquid and attenuation measurement 200.0 via email in 1~3 business day valid
GB/T 15072.18-2008 Test method of precious metal alloys - Determination of zirconium and gadolinium contents for gold alloys - Inductively coupled plasma atomic emission spectrometry 120.0 via email in 1~3 business day valid
YS/T 519.2-2009 Methods for chemical analysis of arsenic Part 2: Determination of antimony content-Malachite green spectrophotometric method 90.0 via email in 1~3 business day valid
GB/T 6728-1986 Cold forming sectional steel--Hollow sectional steel for general structure--Dimension form weight and permissible deviations 165.0 via email in 1~3 business day abolished
T/CFA 010604-2-2014 Impact test method of wear resistant steels and irons via email in business day valid
YS/T 227.1-1994 Determination of bismuth content in tellurium--Potassium iodide brucine photometric method 15.0 via email in 1~3 business day abolished
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