Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 23901.2-2019 Non-destructive testing—Image quality of radiographs—Part 2:Determination of the image quality value using step/hole-type image quality indicators $140.00 via email in 1~3 business day valid
GB/T 23901.3-2009 Non-destructive testing—Image quality of radiographs—Part 3:Image quality classes for ferrous metals $210.00 via email in 1~3 business day superseded
GB/T 23901.3-2019 Non-destructive testing—Image quality of radiographs—Part 3:Image quality classes $140.00 via email in 1~3 business day valid
GB/T 23901.4-2009 Non-destructive testing—Image quality of radiographs—Part 4:Experimental evaluation of image quality values and image quality tables $120.00 via email in 1~3 business day superseded
GB/T 23901.4-2019 Non-destructive testing—Image quality of radiographs—Part 4: Experimental evaluation of image quality values and image quality tables $100.00 via email in 1~3 business day valid
GB/T 23901.5-2009 Non-destructive testing—Image quality of radiographs—Part 5:Image quality indicators (duplex wire type)—Determination of image unsharpness value $120.00 via email in 1~3 business day superseded
GB/T 23901.5-2019 Non-destructive testing—Image quality of radiographs—Part 5: Determination of the image unsharpness and basic spatial resolution value using duplex wire-type image quality indicators $140.00 via email in 1~3 business day valid
GB/T 23902-2009 Non-destructive testing—Ultrasonic examination—Time-of-flight diffraction technique as a method for detection and sizing of discontinuities $270.00 via email in 1~3 business day superseded
GB/T 23902-2021 Non-destructive testing - Ultrasonic testing - Time-of-flight diffraction technique as a method for detection and sizing of discontinuities $400.00 via email in 1~3 business day valid
GB/T 23903-2009 Resolution indicators for ray image $210.00 via email in 1~3 business day valid
GB/T 23904-2009 Non-destructive testing—Test method for ultrasonic testing by surface wave $180.00 via email in 1~3 business day valid
GB/T 23905-2009 Non-destructive testing—Blocks for ultrasonic testing $270.00 via email in 1~3 business day valid
GB/T 23906-2009 Non-destructive testing—Rings for magnetic particle testing $180.00 via email in 1~2 business day valid
GB/T 23907-2009 Non-destructive testing—Shims for magnetic particle testing $150.00 immediately valid
GB/T 23908-2009 Non-destructive testing—Practice for ultrasonic pulse-echo straight-beam testing by the contact method $180.00 via email in 1~3 business day valid
GB/T 23909.1-2009 Non-destructive testing—Radioscopic testing—Part 1:Quantitative measurement of imaging properties $310.00 via email in 1~3 business day valid
GB/T 23909.2-2009 Non-destructive testing—Radioscopic testing—Part 2:Check of long term stability of imaging devices $120.00 via email in 1~3 business day valid
GB/T 23909.3-2009 Non-destructive testing—Radioscopic testing—Part 3:General principles of radioscopic testing of metallic materials by X-and gamma rays $180.00 via email in 1~3 business day valid
GB/T 2391-1980 Determination of colour absorption and fixation rate for reactive dyes $180.00 via email in 1~3 business day abolished
GB/T 2391-2003 Reactive dyestuffs--Determination of degree of exhaustion and degree of fixation $260.00 via email in 1~3 business day superseded
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