☣️ UN 0102 • CLASS 1
UN 0102 — Cord, detonating; Fuse, detonating
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 0102 Quick Details
UN 0102
Product name: Cord, detonating; Fuse, detonating
DOT Class: 1
Placard type: Explosive 1.1D
ERG Guide: 112 (check current ERG)
Initial isolation: ERG 112: Isolate 500m (1600 ft) all directions; evacuate 1600m (1 mile) downwind if fire; do not approach until confirmed safe by bomb disposal
Common Hazards of UN 0102
- 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 | Detonating cordDetcordPrimacordExplosive cordBlasting fuseDetonating fuse |
| Appearance | Flexible cord or rope-like device containing a core of high explosive (typically PETN). Typically orange, yellow, or white in color with a fabric or plastic outer sheath. |
| Flash Point | Not applicable (explosive material) |
| Boiling Point | Not applicable (explosive material) |
| Vapor Density | Not applicable (solid explosive) |
| Water Reactivity | No significant reaction with water |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 0102
Extinguishing Media
Do not use water or foam; use dry chemical or sand from safe distance
PPE Requirements
⚠️ Minimum Level C with full face protection; SCBA required if fire or smoke present; maintain maximum safe distance
Isolation & Evacuation
ERG 112: Isolate 500m (1600 ft) all directions; evacuate 1600m (1 mile) downwind if fire; do not approach until confirmed safe by bomb disposal
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 112).
First Actions for a UN 0102 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 0102 — Cord, detonating; Fuse, detonatingHAZMAT RADIO NOTE — UN 0102
Product: Cord, detonating; Fuse, detonating
Class 1 / Explosive 1.1D / ERG 112
PPE: Minimum Level C with full face protection; SCBA required if fire or smoke present; maintain maximum safe distance
ISOLATION: ERG 112: Isolate 500m (1600 ft) all directions; evacuate 1600m (1 mile) downwind if fire; do not approach until confirmed safe by bomb disposal
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 0102 — Cord, detonating; Fuse, detonating
Class: 1 | Placard: Explosive 1.1D | ERG Guide: 112
Appearance: Flexible cord or rope-like device containing a core of high explosive (typically PETN). Typically orange, yellow, or white in color with a fabric or plastic outer sheath.
Water Reactivity: No significant reaction with water
Extinguishing: Do not use water or foam; use dry chemical or sand from safe distance
PPE: Minimum Level C with full face protection; SCBA required if fire or smoke present; maintain maximum safe distance
Isolation: ERG 112: Isolate 500m (1600 ft) all directions; evacuate 1600m (1 mile) downwind if fire; do not approach until confirmed safe by bomb disposal
— 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/0102 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN0102 Cord, detonating; Fuse, detonating Cls1 ERG112 | allfirefighter.com/hazmat/un/0102SMS / 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/0102
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 0102
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.
Minimum Level C with full face protection; SCBA required if fire or smoke present; maintain maximum safe distance
Water reactivity: No significant reaction with water. Recommended extinguishing: Do not use water or foam; use dry chemical or sand from safe distance.
ERG Guide 112 recommendation: ERG 112: Isolate 500m (1600 ft) all directions; evacuate 1600m (1 mile) downwind if fire; do not approach until confirmed safe by bomb disposal
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.