National foreword

This British Standard is the UK implementation of ISO 24367:2023.

The UK participation in its preparation was entrusted to Technical Committee WEE/46/9, Acoustic Emission Testing.

A list of organizations represented on this committee can be obtained on request to its committee manager.

Contractual and legal considerations

This publication has been prepared in good faith, however no representation, warranty, assurance or undertaking (express or implied) is or will be made, and no responsibility or liability is or will be accepted by BSI in relation to the adequacy, accuracy, completeness or reasonableness of this publication. All and any such responsibility and liability is expressly disclaimed to the full extent permitted by the law.

This publication is provided as is, and is to be used at the recipient’s own risk.

The recipient is advised to consider seeking professional guidance with respect to its use of this publication.

This publication is not intended to constitute a contract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2024.

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of ISO document should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

ISO draws attention to the possibility that the implementation of this document may involve the use of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s) which may be required to implement this document. However, implementers are cautioned that this may not represent the latest information, which may be obtained from the patent database available at www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.

Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISO's adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.

This document was prepared by Technical Committee ISO/TC 135, Non-destructive testing, Subcommittee SC 9, Acoustic emission testing.

Any feedback or questions on this document should be directed to the user’s national standards body. A complete listing of these bodies can be found at www.iso.org/members.html.

Introduction

Industrial applications of acoustic emission testing for pressure equipment are expanding along with remarkable improvement of acoustic emission testing technologies. The effectiveness of any application of acoustic emission testing depends upon proper and correct usage of the acoustic emission instruments and testing techniques. In addition, the existing international acoustic emission standards lack specification of a classification system with associated recommendations for maintenance.

The purpose of this document is to provide requirements for testing equipment, testing procedures and the classification system for acoustic emission testing of pressure equipment in the field of industrial non-destructive testing. The establishment of this document can address the lack of an ISO standard for acoustic emission testing for pressure equipment. The main parties who might benefit from this document are testing organizations and owners/users of pressure equipment.

1 Scope

This document specifies an acoustic emission testing (AT) technique for metallic pressure equipment and the classification and evaluation of results.

This document applies to acoustic emission (AE) detection and monitoring of active sources of newly manufactured and in-service metallic pressure equipment.

This document does not apply to leak detection and in-service monitoring using AE.

This testing method is not intended to be a stand-alone method for testing and evaluation of the pressure equipment. Other non-destructive testing (NDT) methods may be used to verify and supplement the AT results.

2 Normative references

3 Terms and definitions

4 General principles

5 Personnel qualification

6 Testing equipment

6.1 Acoustic emission testing system

6.2 Acoustic emission sensors

6.3 Acoustic emission signal cables

6.4 Couplant

6.5 Preamplifiers

6.6 Power signal cables

6.7 Filters

6.8 Acoustic emission instrument

6.9 Maintenance and verification of testing equipment

6.10 Pressure gauge

7 On-site operation

7.1 Preparation

7.2 Sensor mounting

7.3 Settings of the acoustic emission instrument

7.4 Performing the test

8 Interpretation and evaluation of AE data

8.1 General

8.2 Off-line data analysis

8.3 Classification of the acoustic emission sources of the test object

9 Acceptance criteria

10 Documentation

10.1 General

10.2 Written acoustic emission testing instruction

10.3 Test records

10.4 Test report

Bibliography

BS ISO 24367:2023

Non-destructive testing. Acoustic emission testing. Metallic pressure equipment

Current

Published:

31 Jan 2024