GB/T 39432-2020
ActiveNon-destructive testing—Ultrasonic testing—Specification for step wedge calibration block
无损检测 超声检测 阶梯试块
Application Summary AI generated
This standard specifies the material, dimensions, manufacturing tolerances, and marking requirements for step wedge calibration blocks used in ultrasonic testing. It is applied in industrial non-destructive testing to calibrate the sensitivity and time-base linearity of ultrasonic flaw detectors, particularly for thickness measurement and flaw detection in metal plates, pipes, and welds. The standard ensures consistent and accurate calibration across testing laboratories and field inspection environments.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.