☣️ UN 0333 • CLASS 1
Fireworks
Placard: Explosive 1.1G. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
🚒☣️
⚠️ This page is a quick-reference aid. For real incidents: stage upwind, isolate, deny entry, request Hazmat early, and consult the current ERG + SOP/SOG.
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Quick details
UN 0333
Class: 1
Placard type: Explosive 1.1G
ERG: Guide 112 (check current ERG)
Isolation: ERG 112: Isolate 500m (1640 ft) in all directions. Evacuate 1600m (1 mile) radius if fire or explosion occurs. Consider evacuation of greater distance if large quantities involved.
Chemical & Response Details
| Also known as | PyrotechnicsPyrotechnic devicesRecreational fireworksConsumer fireworksDisplay fireworks |
| Appearance | Various colored solid mixtures containing oxidizers, fuels, and metal compounds. Packaged in cardboard tubes, spheres, or other containers. May emit smoke and various odors when ignited. |
| Flash Point | Not applicable (explosive composition) |
| Boiling Point | Not applicable (decomposes/explodes when heated) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Some compositions may contain water-reactive metals (magnesium, aluminum). Water application may cause unpredictable reactions or reignition. |
| Extinguishing | Do not use water or foam. Use dry chemical, sand, or earth from a distance. Flooding amounts of water may be used from safe location. |
| PPE | ⚠️ Full structural firefighting gear with SCBA. Withdraw immediately if fire involves cargo. Approach from upwind/protected location due to blast and fragmentation hazard. |
| Isolation | ERG 112: Isolate 500m (1640 ft) in all directions. Evacuate 1600m (1 mile) radius if fire or explosion occurs. Consider evacuation of greater distance if large quantities involved. |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- Mass explosion hazard — entire load may detonate simultaneously.
- Severe blast overpressure and fragmentation.
- Sensitive to heat, shock, and friction.
- Secondary fire and debris hazard.
First actions (field-minded)
- CALL 911. Then call emergency response telephone number on shipping paper.
- Establish large isolation zone — minimum 500 meters in all directions.
- Stage upwind, uphill; limit personnel to essential responders only.
- Request Hazmat + law enforcement + additional resources immediately.
- Do not fight fire — evacuate and isolate; let burn if no life safety risk.
- Protect exposures only if safe and directed by command.
- Consult current ERG Guide 112 and follow SOP/SOG.
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UN 0333 — Fireworks HAZMAT RADIO NOTE — UN 0333
Product: Fireworks
Class 1 / Explosive 1.1G / ERG 112
PPE: Full structural firefighting gear with SCBA. Withdraw immediately if fire involves cargo. Approach from upwind/protected location due to blast and fragmentation hazard.
ISOLATION: ERG 112: Isolate 500m (1640 ft) in all directions. Evacuate 1600m (1 mile) radius if fire or explosion occurs. Consider evacuation of greater distance if large quantities involved.
ACTION: Stage upwind · Isolate · Deny entry · Request HazmatRADIO
Use for: Quick radio or face-to-face size-up. Short, structured, field-ready.
=== IC HAZMAT BRIEFING ===
UN 0333 — Fireworks
Class: 1 | Placard: Explosive 1.1G | ERG Guide: 112
Appearance: Various colored solid mixtures containing oxidizers, fuels, and metal compounds. Packaged in cardboard tubes, spheres, or other containers. May emit smoke and various odors when ignited.
Water Reactivity: Some compositions may contain water-reactive metals (magnesium, aluminum). Water application may cause unpredictable reactions or reignition.
Extinguishing: Do not use water or foam. Use dry chemical, sand, or earth from a distance. Flooding amounts of water may be used from safe location.
PPE: Full structural firefighting gear with SCBA. Withdraw immediately if fire involves cargo. Approach from upwind/protected location due to blast and fragmentation hazard.
Isolation: ERG 112: Isolate 500m (1640 ft) in all directions. Evacuate 1600m (1 mile) radius if fire or explosion occurs. Consider evacuation of greater distance if large quantities involved.
— Key Hazards —
• Mass explosion hazard — entire load may detonate simultaneously.
• Severe blast overpressure and fragmentation.
• Sensitive to heat, shock, and friction.
— First Actions —
• CALL 911. Then call emergency response telephone number on shipping paper.
• Establish large isolation zone — minimum 500 meters in all directions.
• Stage upwind, uphill; limit personnel to essential responders only.
• Request Hazmat + law enforcement + additional resources immediately.
SOURCE: allfirefighter.com/hazmat/un/0333 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN0333 Fireworks Cls1 ERG112 | ERG 112: Isolate 500m (1640 ft) in all directions. Evacuate 1600m (1 mile) radiu | allfirefighter.com/hazmat/un/0333SMS / 160 CHAR
Use for: Quick text to command or incoming units. Fits in a single SMS. Includes link to full page.
⚠️ Quick-reference only. Always use current ERG + SOP/SOG for incident-specific actions. Page: https://allfirefighter.com/hazmat/un/0333
Related UN numbers (same class)
Discovery block for training / quick reference. Always consult the current ERG + your SOP/SOG for operations.
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FAQ
Mass explosion hazard — entire load may detonate simultaneously. Severe blast overpressure and fragmentation. Sensitive to heat, shock, and friction. Secondary fire and debris hazard.
CALL 911. Then call emergency response telephone number on shipping paper. Establish large isolation zone — minimum 500 meters in all directions. Stage upwind, uphill; limit personnel to essential responders only.
Full structural firefighting gear with SCBA. Withdraw immediately if fire involves cargo. Approach from upwind/protected location due to blast and fragmentation hazard.
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 112 and your department SOP/SOG for incident-specific protective actions.
Sources (high level): DOT/PHMSA marking & class concepts + ERG usage principles. This page does not reproduce ERG guide text—always consult the current ERG for incident-specific protective actions.