API 5CT (ISO11960) and API 5L8 for tube and casing (OCTG).
MIL-STD 2154 for ultrasonic inspection of wrought metals.
CGA C-20 for high-pressure cylinder.
ASTM E1774-96 Standard Guide for Electromagnetic Acoustic Transducers (EMATs).
Electromagnetic Acoustic Transducer (EMAT) Technology.
ASTM E1962-98 Standard Test Methods for Ultrasonic Surface Examinations Using Electromagnetic Acoustic Transducer (EMAT) Technology.