AS/NZS ISO 23876:2025
Gas cylinders – Cylinders and tubes of composite construction – Acoustic emission examination (AT) for periodic inspection and testing
The objective of this document is to specify the use of acoustic emission examination (AT) during periodic inspection and testing of hoop wrapped (Type 2) and fully wrapped (Types 3 and 4) composite transportable gas cylinders and tubes of water capacity up to 3 000 l, with aluminium-alloy, steel or non-metallic liner or of linerless construction (Type 5), intended for compressed and liquefied gases under pressure.
It is applicable to only the verification of the composite material. Additional inspection such as internal visual inspection of the liner does not apply to this document (see ISO 11623).
This document is identical with, and has been reproduced from, ISO 23876:2022 Gas cylinders – Cylinders and tubes of composite construction – Acoustic emission examination (AT) for periodic inspection and testing.
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AS/NZS ISO 23876:2025 Gas cylinders - Cylinders and tubes of composite construction - Acoustic emission examination (AT) for periodic inspection and testing
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General operational principles of acoustic emission
5 Personnel qualification
6 Test validity (input instructions)
7 Acoustic emission testing calibration and testing equipment
7.1 Acoustic emission equipment and settings
7.1.1 Acoustic emission instrumentation
7.1.2 Sensors
7.1.3 Preamplifiers
7.1.4 Filter
7.1.5 Settings
7.2 Acoustic emission examination calibration and equipment verification
7.2.1 Calibration
7.2.2 Determination and check of sensor installation layout
7.2.3 Procedure
7.2.4 Pressurization test methods
7.2.5 Analysis of AE criteria
8 Verification of rejection criteria using actual cylinders
9 Test report
10 Rejection and rendering cylinders unserviceable
Annex A (informative) Example of verification tests performed on cylinders to detect damage resulting from mechanical impacts or other types of damage
Annex B (informative) Examples of rejection criteria
Bibliography
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AS/NZS ISO 23876:2025 Gas cylinders - Cylinders and tubes of composite construction - Acoustic emission examination (AT) for periodic inspection and testing
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General operational principles of acoustic emission
5 Personnel qualification
6 Test validity (input instructions)
7 Acoustic emission testing calibration and testing equipment
7.1 Acoustic emission equipment and settings
7.1.1 Acoustic emission instrumentation
7.1.2 Sensors
7.1.3 Preamplifiers
7.1.4 Filter
7.1.5 Settings
7.2 Acoustic emission examination calibration and equipment verification
7.2.1 Calibration
7.2.2 Determination and check of sensor installation layout
7.2.3 Procedure
7.2.4 Pressurization test methods
7.2.5 Analysis of AE criteria
8 Verification of rejection criteria using actual cylinders
9 Test report
10 Rejection and rendering cylinders unserviceable
Annex A (informative) Example of verification tests performed on cylinders to detect damage resulting from mechanical impacts or other types of damage
Annex B (informative) Examples of rejection criteria
Bibliography
AS/NZS ISO 23876:2025
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.