GB/T 20935.3-2018 Metal materials—Method of electromagnetic acoustic inspection—Part 3: Standard practice for ultrasonic surface examinations using electromagnetic acoustic transducer (EMAT) techniques (English Version)
2018GB/T 20935.3-2018 Metal materials—Method of electromagnetic acoustic inspection—Part 3: Standard practice for ultrasonic surface examinations using electromagnetic acoustic transducer (EMAT) techniques
2009GB/T 20935.3-2009 Method of electromagnetic acoustic inspection for metal materials.Part 3:Standard test method for ultrasonic surface examinations using electromagnetic acoustic transducer(EMAT)techniques