☣️ UN 0485 • CLASS 1
UN 0485 — Substances, explosive, n.o.s.
Placard: Explosive 1.4S. ERG Guide 114. 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 0485 Quick Details
UN 0485
Product name: Substances, explosive, n.o.s.
DOT Class: 1
Placard type: Explosive 1.4S
ERG Guide: 114 (check current ERG)
Initial isolation: ERG 114: Isolate spill or leak area immediately for at least 25-50 meters in all directions. If fire involved, isolate 500 meters and consider evacuation for 800 meters downwind.
Common Hazards of UN 0485
- Minor blast or fire hazard — limited effect.
- Localized burning or deflagration possible.
- Smoke and heat from burning.
- Low mass explosion risk under normal conditions.
Chemical Identity & Physical Properties
| Also known as | Explosive substances not otherwise specifiedExplosive materials n.o.s.Division 1.4S explosivesArticles explosive n.o.s. |
| Appearance | Variable physical form (solid articles, powders, or preparations) depending on specific explosive substance. Color and appearance vary widely. Generally stable under normal conditions with minimal fire or blast hazard. |
| Flash Point | Not applicable (explosive material) |
| Boiling Point | Not applicable (decomposes or deflagrates) |
| Vapor Density | Not applicable (typically solid articles) |
| Water Reactivity | Generally stable; however, specific formulations may react with water. Consult SDS for particular substance. |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 0485
Extinguishing Media
Water spray, fog, or foam may be used; dry chemical and CO2 also suitable for small fires
PPE Requirements
⚠️ Level C minimum for handling; Level B with SCBA for fire involvement or significant release. Structural firefighter protective clothing provides limited protection.
Isolation & Evacuation
ERG 114: Isolate spill or leak area immediately for at least 25-50 meters in all directions. If fire involved, isolate 500 meters and consider evacuation for 800 meters downwind.
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 114).
First Actions for a UN 0485 Incident
- CALL 911. Notify law enforcement.
- Isolate area; keep unauthorized personnel away.
- Stage upwind; eliminate ignition sources.
- Request Hazmat + law enforcement.
- Consult current ERG Guide 114 and follow SOP/SOG.
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UN 0485 — Substances, explosive, n.o.s.HAZMAT RADIO NOTE — UN 0485
Product: Substances, explosive, n.o.s.
Class 1 / Explosive 1.4S / ERG 114
PPE: Level C minimum for handling; Level B with SCBA for fire involvement or significant release. Structural firefighter protective clothing provides limited protection.
ISOLATION: ERG 114: Isolate spill or leak area immediately for at least 25-50 meters in all directions. If fire involved, isolate 500 meters and consider evacuation for 800 meters downwind.
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 0485 — Substances, explosive, n.o.s.
Class: 1 | Placard: Explosive 1.4S | ERG Guide: 114
Appearance: Variable physical form (solid articles, powders, or preparations) depending on specific explosive substance. Color and appearance vary widely. Generally stable under normal conditions with minimal fire or blast hazard.
Water Reactivity: Generally stable; however, specific formulations may react with water. Consult SDS for particular substance.
Extinguishing: Water spray, fog, or foam may be used; dry chemical and CO2 also suitable for small fires
PPE: Level C minimum for handling; Level B with SCBA for fire involvement or significant release. Structural firefighter protective clothing provides limited protection.
Isolation: ERG 114: Isolate spill or leak area immediately for at least 25-50 meters in all directions. If fire involved, isolate 500 meters and consider evacuation for 800 meters downwind.
— Key Hazards —
• Minor blast or fire hazard — limited effect.
• Localized burning or deflagration possible.
• Smoke and heat from burning.
— First Actions —
• CALL 911. Notify law enforcement.
• Isolate area; keep unauthorized personnel away.
• Stage upwind; eliminate ignition sources.
• Request Hazmat + law enforcement.
SOURCE: allfirefighter.com/hazmat/un/0485 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN0485 Substances, explosive, n.o.s. Cls1 ERG114 | allfirefighter.com/hazmat/un/0485SMS / 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/0485
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 0485
Minor blast or fire hazard — limited effect. Localized burning or deflagration possible. Smoke and heat from burning. Low mass explosion risk under normal conditions.
CALL 911. Notify law enforcement. Isolate area; keep unauthorized personnel away. Stage upwind; eliminate ignition sources.
Level C minimum for handling; Level B with SCBA for fire involvement or significant release. Structural firefighter protective clothing provides limited protection.
Water reactivity: Generally stable; however, specific formulations may react with water. Consult SDS for particular substance.. Recommended extinguishing: Water spray, fog, or foam may be used; dry chemical and CO2 also suitable for small fires.
ERG Guide 114 recommendation: ERG 114: Isolate spill or leak area immediately for at least 25-50 meters in all directions. If fire involved, isolate 500 meters and consider evacuation for 800 meters downwind.
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 114 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.