Coal dust (lignite)

For Coal dust (lignite), classification system is IEC / ATEX; apparatus / gas group is IIIB; ignition temperature (c) is 380; dust layer ignition temperature (c) is 225, recorded from its source on 2026-08-06.

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

Coal dust (lignite) | IIIB | 380 | 225

— e2s.com, retrieved 2026-08-06

Source

• e2s.comhttps://www.e2s.com/guide-for-hazardous-areas/apparatus-groups-and-common-flammable-ga

Last verified against source: 2026-08-06. Due for re-check by 2028-08-05. This page as Markdown · OKF bundle · full dataset as JSON.