Abstract

This document defines the general principles for the application of the time-of-flight diffraction (TOFD) technique for both detection and sizing of discontinuities in low alloyed carbon steel components. It can also be used for other types of materials, provided the application of the TOFD technique is performed with necessary consideration of geometry, acoustical properties of the materials, and the sensitivity of the examination. Although it is applicable, in general terms, to discontinuities in materials and applications covered by ISO 16810, it contains references to the application on welds. This approach has been chosen for reasons of clarity as to the ultrasonic probe positions and directions of scanning. Unless otherwise specified in the referencing documents, the minimum requirements of ISO 16828:2012 are applicable. Unless explicitly stated otherwise, this document is applicable to the following product classes as defined in ISO 16811: - a) class 1, without restrictions; - b) classes 2 and 3, with restrictions. The inspection of products of classes 4 and 5 requires special procedures.

Begin

2023-01-23

WI

00138281

Planned document number

DIN EN ISO 16828

Project number

06236470

Responsible national committee

NA 062-11-12 AA - Ultrasonic testing  

Responsible european committee

CEN/TC 138/WG 2 - Ultrasonic testing  

Responsible international committee

ISO/TC 135/SC 3/WG 7 - Basic principles  

draft standard

Non-destructive testing - Ultrasonic testing - Time-of-flight diffraction technique for detection and sizing of discontinuities (ISO/DIS 16828:2024); German and English version prEN ISO 16828:2024
2024-07
Order from DIN Media

previous edition(s)

Non-destructive testing - Ultrasonic testing - Time-of-flight diffraction technique as a method for detection and sizing of discontinuities (ISO 16828:2012); German version EN ISO 16828:2014
2014-06

Order from DIN Media