☣️ DOT HAZMAT CLASS 5
Oxidizers & Organic Peroxides
Can intensify fire and accelerate burning—cooling and isolation often critical.
🧯☣️
⚠️ Training/quick-reference only. For real incidents, follow your SOP/SOG and the current ERG.
Advertisement
Common hazards (high level)
- Intensifies combustion and fire spread
- Reactivity under heat/contamination
- Potential for oxygen release / decomposition
How to recognize
- Placards indicating Oxidizer/Peroxide
- Unusually intense burning behavior
- Facility storage areas (pool supply, industrial)
First actions (before Hazmat team)
- Isolate and keep combustibles away
- Cool exposures as directed and safe
- Request Hazmat early
- Consult ERG for protective actions
- Avoid contamination/mixing of products
What NOT to do
- Do not mix chemicals or runoff
- Do not store combustibles near oxidizers
- Do not treat as ordinary Class A fire
Common examples
Hydrogen peroxide solutionsPool chemicals (varies)Certain fertilizers (varies)
Advertisement
Explore more
FAQ
They can supply oxygen or promote rapid oxidation, increasing heat release and spread.
Yes—many are oxidizers and can react dangerously when wet/contaminated; product specifics matter.
Isolation, cooling exposures if appropriate, Hazmat request, and ERG/SOP guidance.
Sources (high level): DOT/PHMSA class & marking concepts, NFPA 704 overview concepts, and ERG usage principles. This guide does not reproduce ERG guide text—always consult the current ERG for incident-specific protective actions.