Overview
EN ISO 12718:2019 / ISO 12718:2019 is an international vocabulary standard for eddy current testing (a form of non‑destructive testing, NDT). Prepared by ISO/TC 135 (NDT) Subcommittee SC4 and adopted by CEN as EN ISO 12718:2019, this second edition replaces the 2008 edition and provides an authoritative set of terms and definitions to ensure consistent terminology across industry, laboratories, procurement and technical documentation.
Key topics
This standard defines and organizes terms used specifically in eddy current testing. Major topic areas (sections 3.1–3.6) include:
- General EDY current test method terminology - core concepts and method‑specific words.
- Measurement terms - vocabulary related to signals, inspection measurements and data.
- Probe and sensor terms - definitions for probe types and sensor characteristics (including multi‑element / phased‑array technology updates).
- Equipment terms - vocabulary for instruments, electronics and ancillary devices used in eddy current systems.
- Application terms - terms describing how the eddy current method is applied to the product or component under test.
- Evaluation terms - words related to interpretation, reporting and assessment of eddy current results.
Note: the main revision in 2019 was an update of definitions related to phased array / multi‑element technology to reflect modern inspection systems.
Practical applications
EN ISO 12718:2019 is a reference vocabulary that supports:
- Clear, unambiguous communication in technical reports, procedures and standards for eddy current testing.
- Consistent training materials and certification syllabi for NDT personnel.
- Procurement and specification of eddy current probes, instruments and software.
- Interoperability and understanding between manufacturers, service providers and clients across sectors such as aerospace, automotive, oil & gas, power generation, rail and general manufacturing.
Who should use this standard
- NDT engineers, inspectors and technicians working with eddy current methods
- Test laboratories and quality assurance teams
- Equipment and probe manufacturers and developers (including phased‑array vendors)
- Standards writers, auditors and training organizations
- Procurement specialists specifying NDT equipment or services
Related standards and notes
- Supersedes EN/ISO 12718:2008.
- Prepared by ISO/TC 135 SC4 and endorsed by CEN/TC 138.
- Published in English, French and German; CEN members implement it as a national standard.
Keywords: eddy current testing, non‑destructive testing, NDT vocabulary, EN ISO 12718:2019, ISO 12718:2019, eddy current terminology, phased array, probes, NDT equipment.
