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See Chinese contents: GB/T 37566-2019 GB/T 37566-2019: Method of ultrasonic testing for round steel
This Standard specifies testing requirements, contrast sample, testing equipment, testing conditions and steps, determination, testing record and report of ultrasonic testing for round steel. This Standard is applicable to pulse reflection method for ultrasonic automatic or semi-automatic detection (including phased array ultrasonic testing) for round steel of which diameter is 8mm~400mm. Manual testing and ultrasonic testing for round steel of other specifications may refer to this Standard for implementation.
