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

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

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1   Scope

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