# Ex p / pxb / pyb / pzc — Certification marks and hazardous-area classifications: cross-market equivalences

For Ex p / pxb / pyb / pzc, meaning is Purge/Pressurised; governing standard / law is IEC 60079-2, verified against its source on 2026-08-11.

- **Designation:** Ex p / pxb / pyb / pzc _(verified: appears in the quote below)_
- **Meaning:** Purge/Pressurised _(verified: appears in the quote below)_
- **Governing standard / law:** IEC 60079-2 _(verified: appears in the quote below)_

## What the source says

> Purge/Pressurised - Ex p / pxb / pyb / pzc IEC 60079-2

## Source

- https://www.euroswitch.com/wp-content/uploads/euroswitch-hazardous-area-guide_V6.pdf

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/).