Your cart is currently empty!

ISO 16826:2025
ISO 16826:2025 Non-destructive testing – Ultrasonic testing – Testing for discontinuities perpendicular to the surface
CDN $173.00
Description
This document specifies principles for the tandem technique and the longitudinal-longitudinal-transverse wave (LLT) technique for detection of discontinuities perpendicular to the surface or almost perpendicular to the surface.
The general principles for ultrasonic testing of industrial products are described in ISO 16810.
The tandem or LLT techniques can be used for the detection of embedded planar discontinuities.
This document gives guidelines for the testing of metallic materials with a thickness between 40 mm and 500 mm with parallel or concentric surfaces.
The procedures provided in this document can be used for testing of other materials or smaller thickness if special measures are taken according to a written testing procedure.
Phased array techniques can also be applied for the tandem technique and the LLT technique, but additional steps or verifications can be needed.
Edition
2
Published Date
2025-03-05
Status
PUBLISHED
Pages
15
Format 
Secure PDF
Secure – PDF details
- Save your file locally or view it via a web viewer
- Viewing permissions are restricted exclusively to the purchaser
- Device limits - 3
- Printing – Enabled only to print (1) copy
See more about our Environmental Commitment

Abstract
This document specifies principles for the tandem technique and the longitudinal-longitudinal-transverse wave (LLT) technique for detection of discontinuities perpendicular to the surface or almost perpendicular to the surface.
The general principles for ultrasonic testing of industrial products are described in ISO 16810.
The tandem or LLT techniques can be used for the detection of embedded planar discontinuities.
This document gives guidelines for the testing of metallic materials with a thickness between 40 mm and 500 mm with parallel or concentric surfaces.
The procedures provided in this document can be used for testing of other materials or smaller thickness if special measures are taken according to a written testing procedure.
Phased array techniques can also be applied for the tandem technique and the LLT technique, but additional steps or verifications can be needed.
Previous Editions
Can’t find what you are looking for?
Please contact us at:
Related Documents
-
ISO 4006:1991 Measurement of fluid flow in closed conduits – Vocabulary and symbols
0 out of 5CDN $351.00 Add to cart -
ISO 8927:1991 Earth-moving machinery – Machine availability – Vocabulary
0 out of 5CDN $233.00 Add to cart -
ISO 14416:2003 Information and documentation – Requirements for binding of books, periodicals, serials and other paper documents for archive and library use – Methods and materials
0 out of 5CDN $273.00 Add to cart -
ISO 1176:1990 Road vehicles – Masses – Vocabulary and codes
0 out of 5CDN $115.00 Add to cart