# Group G · dust group — North American vs IEC/ATEX explosion protection designations

For Group G, category is dust group; basis or note is Grain / flour dust, recorded from its source on 2026-10-06.

- **Category:** dust group _(our reading, not quoted from the source)_
- **North American designation:** Group G
- **Basis or note:** Grain / flour dust _(verified: appears in the quote below)_

## What the source says

> G | Grain / flour dust

## Related records

- [Class II, Group E · dust group · IIIC](https://referencesource.org/ex-classification-system-crosswalk/iiic-dust-group-class-ii-group-e/)
- [Class II, Group F · dust group · IIIB](https://referencesource.org/ex-classification-system-crosswalk/iiib-dust-group-class-ii-group-f/)
- [Class II, Group G · dust group](https://referencesource.org/ex-classification-system-crosswalk/dust-group-class-ii-group-g/)
- [Class III · dust group](https://referencesource.org/ex-classification-system-crosswalk/dust-group-class-iii/)
- [Class III · dust group · IIIA](https://referencesource.org/ex-classification-system-crosswalk/iiia-dust-group-class-iii/)
- [Group E · dust group](https://referencesource.org/ex-classification-system-crosswalk/dust-group-group-e/)
- [Group F · dust group](https://referencesource.org/ex-classification-system-crosswalk/dust-group-group-f/)

## Source

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

Last verified: 2026-10-06. Review by: 2028-10-05.
Part of [North American vs IEC/ATEX explosion protection designations](https://referencesource.org/ex-classification-system-crosswalk/).