TS EN ISO 5577
Non-destructive testing - Ultrasonic testing - Vocabulary
This document defines the terms used in ultrasonic non-destructive testing and forms a common basis for standards and general use. This document does not cover specific terms used in ultrasonic testing with arrays. NOTE Terms used in ultrasonic testing with arrays are defined in ISO 23243.
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About This Item
TS EN ISO 5577 is the vocabulary standard for ultrasonic non-destructive testing. Its purpose is to define the terms used in this method so that engineers, inspectors, trainers and specification writers use the same language when referring to the same ultrasonic concepts. It provides a common terminology base for standards and general use, while clearly excluding the specialised terms of array ultrasonic testing.
Why terminology matters in ultrasonic testing
In general technical practice, ultrasonic testing works by introducing high-frequency sound into a material and interpreting the returned signals from interfaces, reflectors or discontinuities. Because the method is used across many materials and industries, precise vocabulary is essential: words such as probe, beam, echo, backwall reflection and indication must be used consistently to avoid ambiguity in procedures, reports and training. A vocabulary standard does not define test performance limits; it organises the language used to describe the method.
Defined scope and explicit exclusions
- The document defines the terms used in ultrasonic non-destructive testing.
- It establishes a common basis for standards and general use.
- It does not cover specific terms used in array ultrasonic testing.
- Terms for array ultrasonic testing are defined in ISO 23243.
- Publication Date: 22.12.2025
- Standard Status: U (Yürürlükteki Standard/Standard)
- Publisher: TSE
- Document Language: en
- ICS Classification: 01.040.19 Deneyler (Terimler); 19.100 Tahribatsız Deneyler
- Pages: 60
- Source Standard: EN ISO 5577:2025
- International Equivalents: EN ISO 5577-EQV; ISO 5577-EQV
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