☣️ UN 0271 • CLASS 1
UN 0271 — Charges, propelling
Placard: Explosive 1.1C. ERG Guide 112. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
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⚠️ 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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UN 0271 Quick Details
UN 0271
Product name: Charges, propelling
DOT Class: 1
Placard type: Explosive 1.1C
ERG Guide: 112 (check current ERG)
Initial isolation: ERG 112: Isolate 800m (1/2 mile) in all directions. If fire or large spill, consider initial evacuation for 1600m (1 mile) in all directions. Treat as mass explosion hazard.
Common Hazards of UN 0271
- Mass explosion hazard — entire load may detonate simultaneously.
- Severe blast overpressure and fragmentation.
- Sensitive to heat, shock, and friction.
- Secondary fire and debris hazard.
Chemical Identity & Physical Properties
| Also known as | Propelling chargesPropellant chargesArtillery propelling chargesGun propellant charges |
| Appearance | Solid propellant charges in various forms (bags, cartridges, pellets) typically gray, brown, or black in color. May be single-base (nitrocellulose), double-base (nitrocellulose/nitroglycerin), or triple-base formulations used to propel projectiles in firearms and artillery. |
| Flash Point | Not applicable (explosive solid) |
| Boiling Point | Not applicable (decomposes explosively) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | No significant reaction with water, but moisture can affect stability and performance |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 0271
Extinguishing Media
Do not use water or foam. Use dry chemical, sand, or earth from a distance. Evacuate area and allow to burn if fire cannot be controlled safely.
PPE Requirements
⚠️ Maximum protective distance recommended. If responders must approach, Level A with blast-resistant gear. SCBA mandatory. Withdraw immediately if fire involves propelling charges.
Isolation & Evacuation
ERG 112: Isolate 800m (1/2 mile) in all directions. If fire or large spill, consider initial evacuation for 1600m (1 mile) in all directions. Treat as mass explosion hazard.
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 112).
First Actions for a UN 0271 Incident
- 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 0271 — Charges, propellingHAZMAT RADIO NOTE — UN 0271
Product: Charges, propelling
Class 1 / Explosive 1.1C / ERG 112
PPE: Maximum protective distance recommended. If responders must approach, Level A with blast-resistant gear. SCBA mandatory. Withdraw immediately if fire involves propelling charges.
ISOLATION: ERG 112: Isolate 800m (1/2 mile) in all directions. If fire or large spill, consider initial evacuation for 1600m (1 mile) in all directions. Treat as mass explosion hazard.
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 0271 — Charges, propelling
Class: 1 | Placard: Explosive 1.1C | ERG Guide: 112
Appearance: Solid propellant charges in various forms (bags, cartridges, pellets) typically gray, brown, or black in color. May be single-base (nitrocellulose), double-base (nitrocellulose/nitroglycerin), or triple-base formulations used to propel projectiles in firearms and artillery.
Water Reactivity: No significant reaction with water, but moisture can affect stability and performance
Extinguishing: Do not use water or foam. Use dry chemical, sand, or earth from a distance. Evacuate area and allow to burn if fire cannot be controlled safely.
PPE: Maximum protective distance recommended. If responders must approach, Level A with blast-resistant gear. SCBA mandatory. Withdraw immediately if fire involves propelling charges.
Isolation: ERG 112: Isolate 800m (1/2 mile) in all directions. If fire or large spill, consider initial evacuation for 1600m (1 mile) in all directions. Treat as mass explosion hazard.
— 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/0271 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN0271 Charges, propelling Cls1 ERG112 | ERG 112: Isolate 800m (1/2 mile) in all directions. If fire or large spill, cons | allfirefighter.com/hazmat/un/0271SMS / 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/0271
Related UN Numbers in Class 1
Discovery block for training / quick reference. Always consult the current ERG + your SOP/SOG for operations.
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Frequently Asked Questions about UN 0271
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.
Maximum protective distance recommended. If responders must approach, Level A with blast-resistant gear. SCBA mandatory. Withdraw immediately if fire involves propelling charges.
Water reactivity: No significant reaction with water, but moisture can affect stability and performance. Recommended extinguishing: Do not use water or foam. Use dry chemical, sand, or earth from a distance. Evacuate area and allow to burn if fire cannot be controlled safely..
ERG Guide 112 recommendation: ERG 112: Isolate 800m (1/2 mile) in all directions. If fire or large spill, consider initial evacuation for 1600m (1 mile) in all directions. Treat as mass explosion 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.