Testing and Inspection of Offshore and Marine Lifting Appliances: Class Requirements for Certification

Since 2016, PAUT has become a common non-destructive testing method in use in shipyards for marine and offshore structures across the world, as it provides quicker examination than conventional UT technique for complex geometries. Moreover, this book includes guidance for time-of-flight diffraction (TOFD) ultrasonic inspection. The TOFD ultrasonic examination technique provides improved detection and sizing capabilities of discontinuities compared to standard ultrasonic pulse-echo techniques.

Both PAUT and TOFD produce a permanent record of the inspection in electronic format.