Hivatkozási szám

MSZ EN ISO 10863:2020

Dokumentumazonosító

175638

Cím

Hegesztett kötések roncsolásmentes vizsgálata. Ultrahangos vizsgálatok. A futásidő-szóródásos (TOFD-) módszer alkalmazása (ISO 10863:2020)

Angol cím

Non-destructive testing of welds. Ultrasonic testing. Use of time-of-flight diffraction technique (TOFD) (ISO 10863:2020)

Alkalmazási terület

This document specifies the application of the time-of-flight diffraction (TOFD) technique to the semi- or fully automated ultrasonic testing of fusion-welded joints in metallic materials of minimum thickness 6 mm. It applies to full penetration welded joints of simple geometry in plates, pipes, and vessels, where both the weld and the parent material are low-alloyed carbon steel. Where specified and appropriate, TOFD can also be used on other types of materials that exhibit low ultrasonic attenuation (especially that due to scatter). Where material-dependent ultrasonic parameters are specified in this document, they are based on steels having a sound velocity of (5 920 ± 50) m/s for longitudinal waves and (3 255 ± 30) m/s for transverse waves. It is necessary to take this fact into account when testing materials with a different velocity. This document makes reference to ISO 16828 and provides guidance on the specific capabilities and limitations of TOFD for the detection, location, sizing and characterization of discontinuities in fusion-welded joints. TOFD can be used as a stand-alone method or in combination with other non-destructive testing (NDT) methods or techniques, for manufacturing inspection, and for in-service inspection. This document specifies four testing levels (A, B, C, D) in accordance with ISO 17635 and corresponding to an increasing level of testing reliability. Guidance on the selection of testing levels is provided. This document permits assessment of TOFD indications for acceptance purposes. This assessment is based on the evaluation of transmitted, reflected and diffracted ultrasonic signals within a generated TOFD image. This document does not include acceptance levels for discontinuities.

ICS

25.160.40 Hegesztett kötések és hegesztések

Műszaki Bizottság

A szabvány nyelve

angol

Az érvényesség kezdete

2020-09-01

Forrás

idt EN ISO 10863:2020; idt ISO 10863:2020

Előd

MSZ EN ISO 10863:2012

Utód

Módosítás

SZK-közlemények

Kapcsolódó európai jogszabály

A szabvány

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