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YS/T 799-2012 Test Method for the Surface Cleaness of Aluminum and Aluminum Alloy 90.0 via email in 1~3 business day valid
GB/T 4335-2013 Determination of Ferrite Grain Size for Cold Rolled Low Carbon Steel Sheets 370.0 via email in 1~3 business day valid
GB/T 22587-2008 Superconductivity - Matrix to superconductor volume ratio measurement - Copper to superconductor volume ratio of Cu/Nb-Ti composite superconductors 180.0 via email in 1~3 business day valid
GB/T 3246.1-2012 Inspection method for structure of wrought aluminum and aluminum alloy products Part 1 : Inspection method for microstructure 315.0 via email in 1~3 business day valid
GB/T 26074-2010 Germanium monocrystal—Measurement of resistivity-DC linear four-point probe 170.0 via email in 1~3 business day valid
GB/T 26303.3-2010 Measuring methods for dimensions and shapes of wrought copper and copper alloys—Part 3:Sheets and strips 240.0 via email in 1~3 business day valid
GB/T 13789-2008 Methods of measurement of the magnetic properties of magnetic sheet and strip by means of a single sheet tester 285.0 via email in 1~5 business day valid
YS/T 37.3-2007 High pure germanium dioxide-Determination of arsenic content-Graphite furnace atomic absorption spectrophotometric method 60.0 via email in 1~3 business day valid
GB/T 26656-2011 Metallographic test for compacted (vermicular) graphite cast irons 270.0 via email in 1~3 business day valid
GB/T 13298-2015 Inspection methods of microstructure for metals 210.0 via email in 1~3 business day valid
GB/T 13012-2008 Methods of measurement of d.c. magnetic properties of magnetically soft materials 345.0 via email in 1~5 business day valid
GB/T 224-2008 Determination of depth of decarburization of steels 80.0 via email in 1 business day valid
YS/T 37.4-2007 High pure germanium dioxide - Determination of magnesium aluminium cobalt nickel copper zinc indium lead calcium iron and arsenic content-Inductively coupled plasma mass spectrometric 90.0 via email in 1~3 business day valid
GB/T 30655-2014 Test methods for internal quantum efficiency of nitride LED epitaxial layers 150.0 via email in 1~3 business day valid
YS/T 37.5-2007 High pure germanium dioxide-Determination of iron content-Graphite furnace atomic absorption spectrometric method 90.0 via email in 1~3 business day valid
GB/T 26303.1-2010 Measuring method for dimensions and shapes of wrought copper and copper alloy—Part 1:Tube 360.0 via email in 1~3 business day valid
GB/T 31522-2015 Matrix to superconductor volume ratio measurement―Copper to non-copper volume ratio of Nb 3Sn composite superconducting wires 350.0 via email in 1~5 business day valid
GB/T 226-2015 Test method for macrostructure and defect of steel by etching 140.0 via email in 1~3 business day valid
GB/T 4339-2008 Test methods for thermal expansion characteristic parameters of metallic materials 300.0 via email in 1~3 business day valid
GB/T 4334.6-2000 Method of 5 per cent sulfuric acid test for stainless steels 120.0 via email in 1~3 business day abolished
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