ISO 12716:2026

Overview

ISO 12716:2026 - Non-destructive testing - Acoustic emission testing - Vocabulary is an international standard by ISO that defines essential terminology used in acoustic emission testing (AET). By establishing a common vocabulary, this standard supports clear communication and interoperability in the field of non-destructive testing (NDT) worldwide. This document is indispensable for industry professionals, engineers, researchers, and organizations involved in the application, development, or regulation of acoustic emission testing.

Key Topics

ISO 12716:2026 organizes the vocabulary around several key aspects of acoustic emission testing:

• Physical Nature and Events: Definitions for core phenomena such as acoustic emission (AE), AE events, sources, event mechanisms, and energy characteristics. It addresses phenomena like the Kaiser effect and Felicity effect.
• Signal Detection and Features: Terms related to the detection and analysis of AE signals, including burst and continuous signals, detection thresholds, features like amplitude, arrival time, peak, rise time, duration, and decibel units.
• Equipment and Accessories: Standardized names and roles for AE testing hardware, such as AE sensors, waveguides, couplants, pulsers, sensor arrays, and integrated sensors. It also covers concepts like dynamic range and data sets.
• Data Analysis: Vocabulary for AE data interpretation, including analysis steps, cumulative distributions, intensity and activity measures, time series, and correlation plots.
• Testing Procedures and Applications: Standard terms for AE stimulation, testing areas, event locations, sensor array configurations, and error margins. This includes specialized application terms such as planar, linear, and three-dimensional event location techniques, as well as AI-enabled event location.

Applications

ISO 12716:2026 is relevant to a wide range of practical non-destructive testing scenarios, such as:

• Structural Health Monitoring: Ensures consistent terminology for detecting and evaluating material defects like cracks, leaks, or corrosion in bridges, pressure vessels, storage tanks, and pipelines using AE methodology.
• Manufacturing and Quality Control: Supports manufacturers in verifying material integrity during and after production by standardizing terminology for reporting and analysis.
• Asset Maintenance and In-service Inspection: Assists maintenance teams and inspection firms in condition monitoring of critical infrastructure during operational service, leveraging AE testing for predictive maintenance.
• Research and Development: Provides a unified vocabulary for scientists and engineers developing new AE testing technologies, sensors, or analytical methods.
• Global Compliance and Training: Facilitates international trade and training by harmonizing language across regulatory documents and technical instruction materials.

By providing a common set of definitions, ISO 12716:2026 strengthens collaboration and data exchange between stakeholders in the non-destructive testing community.

Related Standards

Professionals using ISO 12716:2026 may find additional value in related standards, including:

• EN 1330-9:2017 - Non-destructive testing – Terminology Part 9: Terms used in acoustic emission testing
• ASTM E1316 - Standard Terminology for Nondestructive Examinations, Section B: Acoustic Emission

Together, these standards offer comprehensive support for organizations seeking to implement best practices in acoustic emission testing and non-destructive evaluation.

For more detailed guidance on vocabulary and the implementation of acoustic emission testing, refer to ISO's official resources and the ISO Online Browsing Platform.