Applus RTD, a leader in the provision of integrity technology services, has unveiled its ultrasonic 3D inspection technology – the latest addition to its NDT3D technology range. The RTD IWEX (Inverse Wave Field Extrapolation) is an emerging Non Destructive Testing (NDT) technique that allows detailed inspection and mapping of defects within critical pieces of pipework. The system increases the probability of detection of defects within welds, as well as more accurately detailing the size, position and characterization of faults, Applus says.