ISO 23865:2021

This document gives general provisions for applying ultrasonic testing with arrays using FMC/TFM techniques and related technologies. It is intended to promote the adoption of good practice either at the manufacturing stage or for in-service testing of existing installations or for repairs. Some examples of applications considered in this document deal with characterization and sizing in damage assessment. Materials considered are low-alloyed carbon steels and common aerospace grade aluminium and titanium alloys, provided they are homogeneous and isotropic, but some recommendations are given for other materials (e.g. austenitic ones). This document does not include acceptance levels for discontinuities. For the application of FMC/TFM to testing of welds, see ISO 23864.