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GB/T 37207-2018 Electrochemical performance test of lithium nickel cobalt manganese oxide—Test method for discharge plateau capacity ratio and cycle life 180 (USD) via email in 1-3 business day VALID
GB/T 2522-2017 Methods of test for the determination of coating insulation resistance and coating adhesion of electrical strip and sheet via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB 2523-1990 Cold rolled sheet (strip)-Measuring method for surface roughness 105 (USD) via email in 1-3 business day ABOLISHED
GB/T 31780-2015 Critical temperature measurement—Critical temperature of composite superconductors by a resistance method 180 (USD) via email in 1-3 business day VALID
GB/T 1482-1984 Metallic powders-Determination of flowability by means of a calibrated funnal (Hall flowmeter) via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 37561-2019 Standard practice for de-agglomeration of refractory metal powders and their compounds prior to particle size analysis 120 (USD) via email in 1-3 business day VALID
GB 4192-1984 Method for the determination of the resistivity of tungsten and molybdenum used in electric light sources and vacuum tubes 45 (USD) via email in 1-3 business day VALID
YS/T 273.5-2006 Chemical analysis methods and physical properties of cryolite—Part 5:Determination of sodium by flame atomic absorption spectrometric method 90 (USD) via email in 1-3 business day VALID
GB/T 21115-2007 Measurement for levitation force of bulk oxide superconductor 180 (USD) via email in 1-3 business day VALID
YS/T 273.7-2006 Chemical analysis methods and physical properties of cryolite -- Part 7: Determination of iron content by orthophenantholine photometric method 75 (USD) via email in 1-3 business day VALID
YS/T 1161.3-2016 Chemical analysis methods of pseudoboehmite—Part 3:Determination of pore volume and specific surface area—Bynitrogen adsorption 120 (USD) via email in 1-3 business day VALID
GB/T 6524-1986 Determination of particle size distribution of metallic powders by method of photosedimentation 105 (USD) via email in 1-3 business day ABOLISHED
GB/T 15250-1994 Test method for bulk acoustic wave attenuation of piezoelectric lithium niobate crystals via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YS/T 455.4-2003 Test method for aluminium foil Part 4:Test method for stickiness 60 (USD) via email in 1-3 business day VALID
GB/T 30857-2014 Standard test method for thickness and thickness variation on sapphire substrates 120 (USD) via email in 1-3 business day VALID
GB/T 13789-1992 Magnetic sheet and strip-Methods of measurement of magnetic properties by means of a single sheet tester via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 11108-1989 Test method for thermal diffusivity of hardmetal (carbide) 75 (USD) via email in 1-3 business day ABOLISHED
GB/T 17473.2-1998 Test methods of precious metal pastes used for thick film microelectronics--Determination of fineness via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 14201-1993 Iron ore pellets-Determination of crushing strength via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 2522-1988 Magnetic sheet and strip-Methods of measurement of interlamination resistance and lamination factor and coat adhesiveness 75 (USD) via email in 1-3 business day ABOLISHED
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