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See Chinese contents: GB/T 22131-2022 GB/T 22131-2022: Practice for ultrasonic examination from bored surfaces of cylindrical forgings
This document describes the basic practice for ultrasonic examination from bored surfaces of forgings by longitudinal wave dual-crystal probes using the pulse reflection method, including requirements for test personnel, general requirements, ultrasonic testing equipment, preparation for ultrasonic testing of forgings, testing procedures, recording requirements and testing report. This document applies to the manual inspection method of cylindrical forgings with an inner diameter of ¡Ý64 mm, but does not limit the use of other inspection methods, such as mechanized or automated inspection methods.
