ISO 4773:2023

Non-destructive testing — Ultrasonic guided-wave testing using the phased-array technique

This document specifies a concept of application of phased-array guided-wave testing for various types of inaccessible structures, including buried pipelines. Materials considered are carbon steel and stainless steel. This document does not include principles and criteria for underground facilities and the phased-array ultrasonic guided-wave testing scheme. Furthermore, this document consists of an optimized process to draw reliable test results on inaccessible pipe cases. This document provides guidance on the use of phased-array guided-wave testing for various types of inaccessible structures, including buried pipelines made of carbon steel and stainless steel. The methodology outlined in this document includes an optimized process for achieving reliable test results on inaccessible pipe cases, with adjustments made to the beam pattern of the GW's focus location based on the defect type, location, and frequency. The process also takes into consideration the distribution diagram of the guided waves and the characteristics of the selected mode, with optimal focusing and steering achieved by adjusting the excitation time delay for each transducer based on the number of circumferential arrangement intervals of a given array probe.

Essais non destructifs — Essais par ondes ultrasonores guidées utilisant la technique multiélément

General Information

• Status: Published
• Publication Date: 04-Oct-2023
• ICS: 19.100 - Non-destructive testing
• Technical Committee: ISO/TC 135/SC 3 - Ultrasonic testing
• Drafting Committee: ISO/TC 135/SC 3/WG 6 - Inspection using guided waves
• Current Stage: 6060 - International Standard published
• Start Date: 05-Oct-2023
• Due Date: 08-Jun-2023
• Completion Date: 05-Oct-2023

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 4773
First edition
2023-10
Non-destructive testing — Ultrasonic
guided-wave testing using the phased-
array technique
Essais non destructifs — Essais par ondes ultrasonores guidées
utilisant la technique multiélément
Reference number
ISO 4773:2023(E)
© ISO 2023

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ISO 4773:2023(E)
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© ISO 2023
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Published in Switzerland
ii
  © ISO 2023 – All rights reserved

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ISO 4773:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Personnel requirements . 1
5 Principles of phased-array guided-wave testing . 2
6 Test equipment .2
6.1 General . 2
6.2 Test instrument. 3
6.3 Probe . 3
6.4 Environmental requirements. 3
7 Periodical check of the test equipment. 4
7.1 Periodical check of the instrument . 4
7.2 Periodical check of probe . 4
7.3 Check of the complete system setting . 4
7.4 Recording level . 4
8 Test procedure .4
8.1 General .
...