UN 0105 — Fuse, safety
Placard: Explosive 1.4S. ERG Guide 114. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 0105, also known as safety fuses, are textile-wrapped cords containing black powder or similar deflagrating composition. They are typically used in explosive devices and can pose a significant fire hazard if burning.
Hazard overview: The fuse can initiate connected explosive devices and poses a fire hazard if burning. It may also explode under fire conditions, making it a highly hazardous material.
Response guidance: In case of a fire, evacuate the area and fight the fire from a maximum distance. Use water spray, fog, or regular foam to control the fire, and consider flooding with water as a preferred method.
UN 0105 Quick Details
Common Hazards of UN 0105
- Fire hazard if burning
- May initiate connected explosive devices
- Burning rate varies by product
Chemical Identity & Physical Properties
The fuse has a flexible, rope-like appearance with a distinctive fabric covering, typically gray, black, or green in color.
| Also known as | Safety fuseBlasting fuseTime fuseIgniter cordPowder core fuse |
| Appearance | Textile-wrapped cord containing black powder or similar deflagrating composition, typically gray, black, or green in color. Flexible, rope-like appearance with distinctive fabric covering. |
| Flash Point | Not applicable (pyrotechnic device) |
| Boiling Point | Not applicable (pyrotechnic device) |
| Vapor Density | Not applicable (solid article) |
| Water Reactivity | Minimal reaction with water; wet fuse may fail to function but does not react violently |
Fireground Response Guidance — UN 0105
Extinguishing Media
PPE Requirements
Level D minimum personal protective equipment is required for handling intact fuses, while Level C with SCBA is necessary if fire or decomposition is occurring.
Isolation & Evacuation
First Actions for a UN 0105 Incident
- CALL 911. Notify law enforcement.
- Isolate area; no ignition sources
- Stage upwind; deny entry
- Request Hazmat + law enforcement
- Consult current ERG Guide 114 and SOP/SOG
📋 Copy & Share Field Card
UN 0105 — Fuse, safetyUse for: Quick radio or face-to-face size-up. Short, structured, field-ready.
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
Use for: Quick text to command or incoming units. Fits in a single SMS.