CSN EN ISO 15626 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. Original English text of CSN EN Standard. The price of the Standard included all amendments and correcturs.
