TS EN 1330-10

TS EN 1330-10 is a terminology standard for non-destructive testing that collects the terms and definitions used in visual testing. Its main value is consistency: the same inspection concept can be described and reported in the same way across documents, teams, and specifications. Visual testing is a core NDT method based on direct observation, or observation with suitable optical aids, of surfaces and other visible features.

Where visual testing fits in NDT practice

In general technical practice, visual testing is one of the most accessible and widely used NDT methods. It is applied to visible surface conditions, apparent discontinuities, weld appearance, alignment, shape deviations, and other observable features. The role of this standard is not to prescribe an inspection procedure or acceptance criteria; it organises the language used in this field, so the standard should be understood as a vocabulary reference rather than a test method document.

Why terminology matters in inspections

• It reduces ambiguity when different organisations use different names for the same inspection concept.
• It supports consistent reporting in inspection records, training material, and technical specifications.
• It helps distinguish visual testing from other NDT methods with different physical principles.
• It improves communication around surface conditions and visible indications, where wording can affect interpretation.

This publication is based on EN 1330-10 and corresponds to the visual testing part of the TS EN 1330 series. Its scope is limited to terminology, so it provides a shared technical vocabulary rather than procedural instructions.