Abstract

This document defines the principles for tandem‑ and longitudinal-longitudinal-transverse (LLT) wave‑examination for the detection of discontinuities perpendicular to the surface. The general principles required for the ultrasonic examination of industrial products are described in ISO 16810. A list of symbols and equations is given in ISO 16811. The tandem‑ or LLT‑examination should be used for the detection of planar discontinuities with distance to the surface greater than 15 mm.

Begin

2023-01-23

WI

00138279

Planned document number

DIN EN ISO 16826

Project number

06236472

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 - Testing for discontinuities perpendicular to the surface (ISO/DIS 16826:2024); German and English version prEN ISO 16826:2024
2024-03
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previous edition(s)

Non-destructive testing - Ultrasonic testing - Examination for discontinuities perpendicular to the surface (ISO 16826:2012); German version EN ISO 16826:2014
2014-06

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