TS EN 1330-4

TS EN 1330-4 is the ultrasonic-testing section of the non-destructive testing terminology family, and it standardizes the definitions of the terms used in that method. Ultrasonic testing works by sending high-frequency sound waves into a material and interpreting echoes, reflections, and signal changes. This standard focuses on the language of the method rather than on a test procedure itself.

Why terminology matters in ultrasonic testing

In ultrasonic inspection, terms such as probe, wave mode, reflection, refraction, echo, interface, and flaw indication must be understood consistently if results are to be compared reliably. Terminology standards help ensure that laboratories, manufacturers, inspectors, and technical documents use the same words with the same meaning. This part covers the definitions of terms used in ultrasonic testing; it is not a method standard that sets equipment settings, acceptance criteria, or step-by-step examination procedures.

Technical context of the standard

• Defines the terms used in ultrasonic testing.
• Belongs to the broader non-destructive testing terminology system.
• Supports consistent use of ultrasonic-related concepts.
• Helps align reporting, training, and technical specifications.
• Describes the vocabulary, not the inspection procedure itself.

In general technical practice, ultrasonic testing is widely used to assess internal discontinuities, thickness variation, and bond or interface behavior, especially in metals and other suitable materials. Standards of this kind help keep reports, training materials, and technical requirements consistent across different industries.