# II 2G — Certification marks and hazardous-area classifications: cross-market equivalences

For II 2G, market / system is ATEX; stated equivalent is Gb; applies to is Zone 1 & 2, verified against its source on 2026-08-11.

- **Designation:** II 2G _(verified: appears in the quote below)_
- **Market / system:** ATEX _(verified: appears in the quote below)_
- **Stated equivalent:** Gb _(verified: appears in the quote below)_
- **Applies to:** Zone 1 & 2 _(verified: appears in the quote below)_

## What the source says

> h Methyl ethyl ketone (MEK), Propane-1-ol (n-propyl alcohol) Suitable for Zone 1 & 2 IIC Group IIA and IIB gases plus, Acetylene, Hydrogen ATEX Group & Category: II 2G IECEx Equipment Protec on Level: Gb Types of protec on (electrical):

## 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/).