# Xylene — Gas group, temperature class and autoignition temperature by substance

For Xylene, classification system is IEC / ATEX; apparatus / gas group is IIA, recorded from its source on 2026-08-06.

- **Substance:** Xylene _(verified: appears in the quote below)_
- **Classification system:** IEC / ATEX _(our reading, not quoted from the source)_
- **Apparatus / gas group:** IIA _(verified: appears in the quote below)_

## What the source says

> Group IIA: Methane (CH₄) — natural gas, biogas Propane (C₃H₈) — LPG Butane (C₄H₁₀) — LPG Acetone — solvents Ethanol — pharmaceutical, food/beverage Benzene, toluene, xylene — petrochemical Ammonia (NH₃) — refrigeration, agriculture n-Hexane — extraction processes

## Source

- https://exknowledge.com/pages/gas-groups.html

Last verified: 2026-08-06. Review by: 2028-08-05.
Part of [Gas group, temperature class and autoignition temperature by substance](https://referencesource.org/hazardous-area-substance-classification/).