# Ex m — Certification marks and hazardous-area classifications: cross-market equivalences

For Ex m, market / system is IEC / ATEX; meaning is Encapsulation; governing standard / law is IEC 60079 series, recorded from its source on 2026-08-11.

- **Designation:** Ex m _(verified: appears in the quote below)_
- **Market / system:** IEC / ATEX
- **Meaning:** Encapsulation _(verified: appears in the quote below)_
- **Governing standard / law:** IEC 60079 series

## What the source says

> Ex m | Encapsulation

## Source

- https://www.inframena.com/hazardous-area-classification-equivalency-guide/

Last verified: 2026-08-11. Review by: 2027-08-11.
Part of [Certification marks and hazardous-area classifications: cross-market equivalences](https://referencesource.org/certification-standards-equivalence/).