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YS/T 478-2005 The method for electrical conductivity measurement of copper and copper alloys by use of eddy current 105 (USD) via email in 1-3 business day VALID
YS/T 438.3-2001 Methods for physical performance determination of sandy alumina—Determination of the angle of repose via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB 5254-1985 60 (USD) via email in 1-3 business day ABOLISHED
GB 351-1964 30 (USD) via email in 1-3 business day ABOLISHED
GB/T 8757-1988 Determination of carrier concentration in gallium arsenide by the plasma resonance minimum 30 (USD) via email in 1-3 business day ABOLISHED
YS/T 1065.4-2015 Methods for physical performance determination of zeolite—Part 4:Determination of non-ionic liquid-carrying capacity 120 (USD) via email in 1-3 business day VALID
GB/T 1558-1997 Test method for substitutional atomic carbon content of silicon by infrared absorption via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 5252-1985 Germanium monocrystal; Inspection of dislocation etch pit density 105 (USD) via email in 1-3 business day ABOLISHED
YS/T 784-2012 Measurement of technical parameter for aluminium cell 240 (USD) via email in 1-3 business day VALID
GB/T 6524-2003 Metallic powders—Determination of particle size distribution by gravitational sedimentation in a liquid and attenuation measurement via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 738.4-2010 Analysis method for aluminum hydroxide for filler—Part 4:Determination method of viscosity 120 (USD) via email in 1-3 business day VALID
GB/T 3655-2000 Methods of measurement of the magnetic properties of electrical steel sheet and strip by mesns of an Epstein frame via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 31353-2014 Test methods for bow of sapphire substrates 180 (USD) via email in 1-3 business day VALID
GB/T 8758-1988 Measuring thickness of epitaxial layers of gallium arsenide by infrared interference 75 (USD) via email in 1-3 business day ABOLISHED
YS/T 617.3-2007 Determination of chemical compositions and physical properties of aluminum powder magnesium powder and Al-Mg alloy powder Part 3 Determination of volatile matter(water) content Drying-degravimetric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 19289-2019 Methods of measurement of resistivity,density and stacking factor of electrical steel strip and sheet 360 (USD) via email in 1-3 business day VALID
YB/T 130-1997 Steel——Determination of isothermal transformation diagram method 130 (USD) via email in 1 business day VALID
GB/T 1550-1997 STANDARD methods for measuring conductivity type of extrinsic semiconducting materials via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 5026-1985 The measurement method of amplitude permeability of soft magnetic alloys 75 (USD) via email in 1-3 business day ABOLISHED
YS/T 629.2-2007 Chemical analysis methods of high purity alumina Determination of ferric oxide orthopenanthroline photometric method extracted with methyl-iso-butyl ketone via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
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