What is ISO 20890 ‑ 1 about?
ISO 20890 ‑ 1 is the first part of the multi-series European standard that specifies guidelines for pre-service-inspections (PSI) and in-service inspections (ISI) with mechanized ultrasonic test (UT) devices on components of the reactor coolant circuit of light water reactors. ISO 20890 ‑ 1 is also applicable to other components of nuclear installations.
ISO 20890 ‑