Petroleum and natural gas industries—Non-destructive testing (NDT) methods of steel tubes—Part 8: Automated full peripheral ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imperfections
Petroleum and natural gas industries—Non-destructive testing (NDT) methods of steel tubes—Part 7 : Magnetic particle inspection of seamless and welded ferromagnetic steel tubes for the detection of surface imperfections