Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 4296-1984 Magnesium alloy wrought products--Microstructure--Inspection method via email in business day superseded
GB/T 4335-2013 Determination of Ferrite Grain Size for Cold Rolled Low Carbon Steel Sheets 390.0 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 150.0 via email in 1~3 business day valid
YB 28-1959 via email in business day abolished
GB/T 11343-1989 Ultrasonic angle beam examination by the contact method 75.0 via email in 1~3 business day superseded
GB/T 13298-2015 Inspection methods of microstructure for metals 255.0 via email in 1~3 business day valid
GB/T 5193-1985 Method of ultrasonic inspection for wrought titanium and titanium alloys products via email in business day superseded
GB/T 13299-1991 Steel - Determination of Microstructure 40.0 via email in 1 business day valid
GB 224-1987 Determination of depth of decarburization of steel 30.0 via email in 1~3 business day superseded
GB/T 14999.1-2012 Test method for superalloys - Part 1: Verification of longitudinal macro-structures and defect by etch 360.0 via email in 1~3 business day valid
GB/T 224-2008 Determination of depth of decarburization of steels 90.0 via email in 1 business day valid
GB/T 13299-1991 Steel-Determination of microstructure 270.0 via email in 1~3 business day valid
GB/T 13305-1991 Austenitic stainless steels-Determination of area content of the α-phase-Micrographic method using STANDARD diagrams 120.0 via email in 1~3 business day superseded
HB 5201-1982 Metallographic Inspection Standard for Overburning of Wrought Aluminum Alloy 165.0 via email in 1~3 business day valid
GB/T 18032-2000 The inspecting method of AB microscopic defect in gallium arsenide single crystal 90.0 via email in 1~3 business day valid
GB/T 14999.2-2012 Test methods for superalloys - Part 2: Verification of transverse macro-structures and defect by etch 180.0 via email in 1~3 business day valid
GB/T 13298-1991 Metal - Inspection Method of Microstructure 100.0 via email in 1 business day superseded
GB/T 226-2015 Test method for macrostructure and defect of steel by etching 165.0 via email in 1~3 business day valid
HB 6623.1-1992 Determination Method for Transformation Temperature of Titanium Alloy Β- Differential Thermal Analysis Method 135.0 via email in 1~3 business day valid
GB/T 31309-2014 Calculation of electoron vacancy number in nickel-base superalloys 165.0 via email in 1~3 business day valid
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