TS EN ISO 12706

TS EN ISO 12706 is a terminology standard for non-destructive testing that defines technical terms used in penetrant testing. Rather than prescribing how to perform the method, it provides a common vocabulary so engineers, inspectors and specifiers use the same concepts in the same way. In general technical context, penetrant testing is a widely used NDT method that makes surface-breaking discontinuities visible by combining a liquid penetrant, cleaning steps and, where applicable, a developer.

How the penetrant-testing vocabulary is organised

Terminology standards reduce ambiguity around process steps, materials and the interpretation of results. In this field, terms such as penetrant, cleaning, developer, surface discontinuity and indication carry precise technical meanings. That common language supports training, reporting, procurement specifications and communication between different organisations.

What this document covers

• It covers technical terms related to penetrant testing.
• It belongs to the terminology branch of non-destructive testing standards.
• Its focus is standardised language rather than test procedures or acceptance criteria.
• This is the withdrawn TSE edition recorded for the EN ISO 12706-based document.

In broader technical practice, penetrant testing is used to reveal surface-breaking flaws such as cracks and porosity on suitable materials, especially metals and other non-porous surfaces. Clear term definitions matter because the same word can mean different things in different inspection families. The value of this standard lies in keeping the penetrant-testing vocabulary consistent and technically controlled.

This record represents the TS EN ISO 12706 edition based on EN ISO 12706:2000 and it has since been withdrawn. Its purpose is to harmonise the terminology used in penetrant testing; it should not be read as a standalone inspection procedure or a set of acceptance rules.