ISO 15626 Non-destructive testing of welds - Time- of-flight diffraction technique (TOFD) - Acceptance levels

This International Standard specifies acceptance levels for the time-of-flight diffraction technique (TOFD) of These acceptance levels are applicable to indications classified in accordance with ISO 10863.
of ISO 5817. full penetration welds in ferritic steels from 6 mm up to 300 mm thickness which correspond to the quality levels