☣️ DOT Hazmat Classification
Explosives
Blast/fragmentation hazards and rapid energy release—treat as high-risk, high-consequence.
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DOT CLASS 1
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Common Hazards — Class 1
- Blast pressure and fragmentation
- Secondary explosions from heat/impact
- Unpredictable reaction to fire
How to Recognize Class 1
- Placards/labels indicating explosives
- Specialized transport packaging or secured loads
- Large standoff and public safety concerns
First Actions Before Hazmat Team Arrives
Initial priorities for DOT Hazmat Class 1 (Explosives) incidents. These are general guidelines — always verify with shipping papers, consult the current ERG, and follow your SOP/SOG.
- Establish a large isolation zone early
- Stage upwind; limit personnel exposure
- Request Hazmat + law enforcement + additional resources
- Protect exposures only if safe and directed
- Consult current ERG and follow SOP/SOG
What NOT To Do — Class 1
- Do not rush into the hot zone for reconnaissance
- Do not operate close to involved containers
- Do not assume stability once fire is controlled
Common Examples — Class 1 Explosives
FireworksAmmunitionDetonatorsExplosive primersBlasting agents
These are representative examples only. Product-specific hazards vary — always confirm via shipping papers and current ERG.
Common UN Numbers in Class 1 (Explosives)
UN 0004Ammonium picrate, dry or wetted with less than 10% waterUN 0012Cartridges for weapons, inert projectileUN 0027Black powder (gunpowder), granular or as a mealUN 0028Black powder, compressedUN 0030Detonators, electric, for blastingUN 0033Bombs, with bursting chargeUN 0042Boosters, without detonatorUN 0043Bursters, explosiveUN 0048Charges, demolitionUN 0055Cases, cartridge, empty, with primerUN 0056Charges, depthUN 0058Charges, shaped, without detonatorUN 0059Charges, shaped, without detonatorUN 0060Charges, supplemental, explosiveUN 0065Cord, detonating (explosive)
More UN numbers discoverable via the Hazmat Hub. Always consult current ERG + SOP/SOG for operations.
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FAQ — DOT Hazmat Class 1 (Explosives)
Explosives can detonate or deflagrate rapidly, producing blast pressure and fragmentation with limited warning.
Tactics depend on product, packaging, and SOP/SOG. Always consult current ERG and Hazmat specialists.
Life safety and standoff—control access, isolate early, request specialized resources.
Sources: DOT/PHMSA hazard class concepts, NFPA 704 overview, and ERG usage principles. This guide does not reproduce ERG guide text — always consult the current ERG for incident-specific protective actions.