☣️ UN 0081 • CLASS 1
UN 0081 — Explosive, blasting, type A
Placard: Explosive 1.1D. 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 0081 Quick Details
UN 0081
Product name: Explosive, blasting, type A
DOT Class: 1
Placard type: Explosive 1.1D
ERG Guide: 112 (check current ERG)
Initial isolation: ERG 112: isolate 500m (1600 ft) all directions; if fire or cargo exposed to fire, evacuate 1600m (1 mile) radius
Common Hazards of UN 0081
- 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 | Type A explosivesClass 1.1D explosivesCommercial blasting explosivesHigh explosives for mining |
| Appearance | Varies widely: may be cartridges, sticks, or bulk powder ranging from white to tan or black; odorless to slight chemical odor; solid form at room temperature. |
| Flash Point | Not applicable (explosive solid) |
| Boiling Point | Not applicable (decomposes/detonates) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Generally stable with water, but moisture can degrade some formulations over time |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 0081
Extinguishing Media
DO NOT use water or foam; flooding from safe distance may be used for large fires only
PPE Requirements
⚠️ Full structural firefighting gear inadequate; evacuate area immediately; remotely fight fire from maximum distance or withdraw if explosives exposed to fire
Isolation & Evacuation
ERG 112: isolate 500m (1600 ft) all directions; if fire or cargo exposed to fire, evacuate 1600m (1 mile) radius
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 112).
First Actions for a UN 0081 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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📋 Copy & Share Field Card
UN 0081 — Explosive, blasting, type AHAZMAT RADIO NOTE — UN 0081
Product: Explosive, blasting, type A
Class 1 / Explosive 1.1D / ERG 112
PPE: Full structural firefighting gear inadequate; evacuate area immediately; remotely fight fire from maximum distance or withdraw if explosives exposed to fire
ISOLATION: ERG 112: isolate 500m (1600 ft) all directions; if fire or cargo exposed to fire, evacuate 1600m (1 mile) radius
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 0081 — Explosive, blasting, type A
Class: 1 | Placard: Explosive 1.1D | ERG Guide: 112
Appearance: Varies widely: may be cartridges, sticks, or bulk powder ranging from white to tan or black; odorless to slight chemical odor; solid form at room temperature.
Water Reactivity: Generally stable with water, but moisture can degrade some formulations over time
Extinguishing: DO NOT use water or foam; flooding from safe distance may be used for large fires only
PPE: Full structural firefighting gear inadequate; evacuate area immediately; remotely fight fire from maximum distance or withdraw if explosives exposed to fire
Isolation: ERG 112: isolate 500m (1600 ft) all directions; if fire or cargo exposed to fire, evacuate 1600m (1 mile) radius
— 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/0081 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN0081 Explosive, blasting, type A Cls1 ERG112 | allfirefighter.com/hazmat/un/0081SMS / 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/0081
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 0081
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 inadequate; evacuate area immediately; remotely fight fire from maximum distance or withdraw if explosives exposed to fire
Water reactivity: Generally stable with water, but moisture can degrade some formulations over time. Recommended extinguishing: DO NOT use water or foam; flooding from safe distance may be used for large fires only.
ERG Guide 112 recommendation: ERG 112: isolate 500m (1600 ft) all directions; if fire or cargo exposed to fire, evacuate 1600m (1 mile) radius
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.