☣️ UN 0083 • CLASS 1
Explosive, blasting, type C
Placard: Explosive 1.1D. 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 0083
Class: 1
Placard type: Explosive 1.1D
ERG: Guide 112 (check current ERG)
Isolation: ERG 112: Isolate 500m (1600 ft) in all directions; evacuate 1600m (1 mile) if fire or shock is involved; mass explosion hazard — do NOT approach
Chemical & Response Details
| Also known as | Type C blasting explosiveCommercial blasting agentANFO (if ammonium nitrate/fuel oil based)Bulk explosivesBlasting compound |
| Appearance | Typically a granular or powdered solid mixture, often tan to gray in color. May be packaged in bags or loaded in bulk. Odorless or slight petroleum odor if fuel oil is present. |
| Flash Point | Not applicable (explosive solid) |
| Boiling Point | Not applicable (decomposes/detonates) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Generally stable in water but may degrade over time; avoid contamination as it may affect detonation properties |
| Extinguishing | DO NOT fight fire if explosive is involved; evacuate area immediately; use unmanned hose holders or monitor nozzles from maximum distance if material is not detonating |
| PPE | ⚠️ Approach only after consultation with explosives expert; full structural firefighting gear with SCBA if fighting peripheral fires only; evacuate personnel if explosive is directly involved |
| Isolation | ERG 112: Isolate 500m (1600 ft) in all directions; evacuate 1600m (1 mile) if fire or shock is involved; mass explosion hazard — do NOT approach |
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 0083 — Explosive, blasting, type C HAZMAT RADIO NOTE — UN 0083
Product: Explosive, blasting, type C
Class 1 / Explosive 1.1D / ERG 112
PPE: Approach only after consultation with explosives expert; full structural firefighting gear with SCBA if fighting peripheral fires only; evacuate personnel if explosive is directly involved
ISOLATION: ERG 112: Isolate 500m (1600 ft) in all directions; evacuate 1600m (1 mile) if fire or shock is involved; mass explosion hazard — do NOT approach
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 0083 — Explosive, blasting, type C
Class: 1 | Placard: Explosive 1.1D | ERG Guide: 112
Appearance: Typically a granular or powdered solid mixture, often tan to gray in color. May be packaged in bags or loaded in bulk. Odorless or slight petroleum odor if fuel oil is present.
Water Reactivity: Generally stable in water but may degrade over time; avoid contamination as it may affect detonation properties
Extinguishing: DO NOT fight fire if explosive is involved; evacuate area immediately; use unmanned hose holders or monitor nozzles from maximum distance if material is not detonating
PPE: Approach only after consultation with explosives expert; full structural firefighting gear with SCBA if fighting peripheral fires only; evacuate personnel if explosive is directly involved
Isolation: ERG 112: Isolate 500m (1600 ft) in all directions; evacuate 1600m (1 mile) if fire or shock is involved; mass explosion hazard — do NOT approach
— 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/0083 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN0083 Explosive, blasting, type C Cls1 ERG112 | allfirefighter.com/hazmat/un/0083SMS / 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/0083
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.
Approach only after consultation with explosives expert; full structural firefighting gear with SCBA if fighting peripheral fires only; evacuate personnel if explosive is directly involved
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.