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YS/T 438.5-2013 Methods for Physical Performance Determination of Sandy Alumina - Part 5: X-ray Diffraction Spectrum Method for Determination of α-alumina Content 120.0 via email in 1~3 business day valid
YS/T 617.1-2007 Determination of chemical compositions and physical properties of aluminum powder magnesium powder and Al-Mg alloy powder Part 1 Determination of active Al Mg or Al-Mg content Gasometric method 90.0 via email in 1~3 business day valid
GB/T 4060-1983 Polycrystalline silicon; Examination method; Vacuum zone-melting on boron 30.0 via email in 1~3 business day superseded
GB/T 2522-2017 Methods of test for the determination of coating insulation resistance and coating adhesion of electrical strip and sheet 110.0 via email in 1 business day valid
GB/T 11112-1989 Non-ferrous metals atmospheric corrosion testing method 135.0 via email in 1~3 business day abolished
YS/T 581.2-2006 Determination of chemical contents and physical properties of aluminium fluoride Part 2: Determination of ignition loss 90.0 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
GB/T 5225-1985 Metal materials-Quantitative phase analysis-Value Kmethod of X-ray diffraction 105.0 via email in 1~3 business day abolished
GB/T 30857-2014 Standard test method for thickness and thickness variation on sapphire substrates 90.0 via email in 1~3 business day valid
YS/T 629.5-2007 Chemical analysis methods of high purity alumina Determination of calcium oxide and magnesium oxide Inductively coupled plasma atomic emission spectrometric method 75.0 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 629.3-2007 Chemical analysis methods of high purity alumina Determination of sodium oxide Flame atomic absorption spectrophotometric method 90.0 via email in 1~3 business day valid
GB/T 33908-2017 Technical specification for testing of liquidus temperature of the electrolyte 165.0 via email in 1~3 business day valid
GB/T 5026-1985 The measurement method of amplitude permeability of soft magnetic alloys 60.0 via email in 1~3 business day abolished
GB/T 31352-2014 Test methods for warp of sapphire substrates 150.0 via email in 1~3 business day valid
YS/T 535.2-2009 Chemical analysis methods of sodium fluoride - Part 2: Determination of fluorine content - Distillation-thorium nitrate volumetric method 90.0 via email in 1~3 business day valid
GB/T 6523-1986 Aluminium oxide powders-Determination of effective density-Pyknometer method 60.0 via email in 1~3 business day abolished
GB/T 28871-2012 Critical current measurement-DC critical current of Nb3Sn composite superconductors 370.0 via email in 1~3 business day valid
GB/T 3651-1983 Measuring method for thermal conductivity of metal at high temperature 60.0 via email in 1~3 business day abolished
YS/T 484-2005 Method for measuring the discharge capacity of the hydrogen storage alloys as the negative electrode of the metal hydride-nickel battery 90.0 via email in 1~3 business day valid
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