ISO International Standard

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

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.

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