GB/T 20935.2-2018 Metal materials—Method of electromagnetic acoustic inspection—Part 2: Standard practice for ultrasonic testing using electromagnetic acoustic transducer (EMAT) techniques (English Version)
2018GB/T 20935.2-2018 Metal materials—Method of electromagnetic acoustic inspection—Part 2: Standard practice for ultrasonic testing using electromagnetic acoustic transducer (EMAT) techniques
2009GB/T 20935.2-2009 Method of electromagnetic acoustic inspection for metal materials.Part 2:Standard practice for ultrasonic testing using electromagnetic acoustic transducer(EMAT)techniques