European Standardization of NDT within CEN/TC 138 - Answer to question about NDT performances

摘要

Since the early sixties, inspection of structural components has been guided through prescriptive codes and standards. An important example is the one of the in-service inspection of nuclear reactor components: ASME Code ... These codes as well as industrial practices propose different NDT methods for different situations. Such differences are justified by the environment in which these inspections are conducted and by the defects to be detected and evaluated. Qualification of inspection procedures is a way of harmonising inspection requirements with the objective of being equally open to any inspection technology. Qualification based on performance standards allow the use of any method and technique which satisfies the inspection objectives in the considered environment. Demonstration of performance has obviously to be performed following well codified rules.