2Barry Messer . Novel High Resolution Defect Detection for Thermoplastic Butt - welds in Operating Pipelines by Ultrasonic TOFD[ A ]. Plastics Pipes Ⅻ Conference[ C ]. Presented at Baveno, Italy, 2004.
3T. Kitaoka, H. Toda, Y. Murata and J. Furukawa, Developmem of Electrofusion Interface Ultrasonic Inspection Technique, Contributing to Construction of Highly Reliable PE Piping[A].Proc. of 2001 Int. Gas Research Conf. [C] .CD - ROM Publication, 2001.
