Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 6620-1995 Test method for measuring warp on silicon slices by noncontact scanning 90.0 via email in 1~3 business day abolished
GB/T 6524-2003 Metallic powders—Determination of particle size distribution by gravitational sedimentation in a liquid and attenuation measurement 210.0 via email in 1~3 business day valid
YS/T 535.8-2009 Chemical analysis methods of sodium fluoride - Part 8: Determination of water insoluble matter content - Gravimetric method 90.0 via email in 1~3 business day valid
GB/T 1424-1996 of measurement of resistivity of precious metals and their alloys 75.0 via email in 1~3 business day valid
GB/T 5986-2000 Test method for modulus of elasticity of thermostat metals 150.0 via email in 1~3 business day valid
YS/T 455.5-2003 Test method for aluminium foil Part 5: Test method for direct-current resistance 45.0 via email in 1~3 business day valid
YS/T 273.8-2006 Chemical analysis methods and physical properties of cryolite - Part 8: Determination of sulphate content by barium sulphate gravimetric method 75.0 via email in 1~3 business day valid
GB/T 30859-2014 Test method for warp and waviness of silicon wafers for solar cells 180.0 via email in 1~3 business day valid
YS/T 581.1-2006 Determination of chemical contents and physical properties of aluminium fluoride Part 1: Determination of moisture content by gravimetric method 45.0 via email in 1~3 business day valid
GB/T 32282-2015 Test method for disoclation density of GaN single crystal—Cathodoluminescence spectroscopy 165.0 via email in 1~3 business day valid
YS/T 581.6-2006 Determination of chemical contents and physical properties of aluminium fluoride Part 6: Determination of silica content by the molybdenum blue photometric 75.0 via email in 1~3 business day valid
YB/T 4148-2006 Measurement method for magnetic property of small single sheet sample of electrical strip 165.0 via email in 1~3 business day valid
GB/T 17473.2-1998 Test methods of precious metal pastes used for thick film microelectronics--Determination of fineness 60.0 via email in 1~3 business day abolished
YS/T 455.3-2003 Test method for aluminium foil Part 3:test method for wettability 45.0 via email in 1~3 business day valid
GB/T 1550-1997 methods for measuring conductivity type of extrinsic semiconducting materials 120.0 via email in 1~3 business day valid
YS/T 581.3-2012 Determination of chemical contents and physical properties of aluminium fluoride Part 3: Determination of fluoride content 180.0 via email in 1~3 business day valid
YS/T 273.12-2006 Chemical analysis methods and physical properties of cryolite - Part 12: The atomic absorption spectrophotometric method for the determination of calcium oxide content 75.0 via email in 1~3 business day valid
YS/T 1065.2-2015 Methods for physical performance determination of zeolite―Part 2:Determination of particle size―Centrifugal sedimentation method 105.0 via email in 1~3 business day valid
GB/T 13390-1992 Metallic powder-Determination of the specific surface area-Method of nitrogen adsorption 180.0 via email in 1~3 business day abolished
YS/T 478-2005 method for electrical conductivity measurement of copper and copper alloys by use of eddy current 90.0 via email in 1~3 business day valid
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