☣️ UN 0455 • CLASS 1
UN 0455 — Detonators, non-electric, for blasting
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 0455 Quick Details
UN 0455
Product name: Detonators, non-electric, for blasting
DOT Class: 1
Placard type: Explosive 1.4S
ERG Guide: 114 (check current ERG)
Initial isolation: ERG 114: isolate 100m all directions; if fire involves explosives, evacuate 800m radius and fight fire from maximum distance
Common Hazards of UN 0455
- 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 | Non-electric blasting detonatorsPlain detonatorsPercussion detonatorsSafety fuse detonatorsNon-electric initiators |
| Appearance | Small cylindrical metal or plastic tubes containing primary explosive material, typically silver or copper colored, used to initiate explosive charges without electrical connections. |
| Flash Point | Not applicable (explosive device) |
| Boiling Point | Not applicable (explosive device) |
| Vapor Density | Not applicable (solid device) |
| Water Reactivity | No significant reaction with water; however, may compromise device integrity |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 0455
Extinguishing Media
Water fog, dry chemical, sand; avoid direct high-pressure streams on devices
PPE Requirements
⚠️ Level C minimum with face shield; SCBA required if fire involves explosive components; structural firefighting gear adequate for external fires
Isolation & Evacuation
ERG 114: isolate 100m all directions; if fire involves explosives, evacuate 800m radius and fight fire from maximum distance
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 114).
First Actions for a UN 0455 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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📋 Copy & Share Field Card
UN 0455 — Detonators, non-electric, for blastingHAZMAT RADIO NOTE — UN 0455
Product: Detonators, non-electric, for blasting
Class 1 / Explosive 1.4S / ERG 114
PPE: Level C minimum with face shield; SCBA required if fire involves explosive components; structural firefighting gear adequate for external fires
ISOLATION: ERG 114: isolate 100m all directions; if fire involves explosives, evacuate 800m radius and fight fire from maximum distance
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 0455 — Detonators, non-electric, for blasting
Class: 1 | Placard: Explosive 1.4S | ERG Guide: 114
Appearance: Small cylindrical metal or plastic tubes containing primary explosive material, typically silver or copper colored, used to initiate explosive charges without electrical connections.
Water Reactivity: No significant reaction with water; however, may compromise device integrity
Extinguishing: Water fog, dry chemical, sand; avoid direct high-pressure streams on devices
PPE: Level C minimum with face shield; SCBA required if fire involves explosive components; structural firefighting gear adequate for external fires
Isolation: ERG 114: isolate 100m all directions; if fire involves explosives, evacuate 800m radius and fight fire from maximum distance
— 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/0455 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN0455 Detonators, non-electric, for blasting Cls1 ERG114 | allfirefighter.com/hazmat/un/0455SMS / 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/0455
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 0455
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 with face shield; SCBA required if fire involves explosive components; structural firefighting gear adequate for external fires
Water reactivity: No significant reaction with water; however, may compromise device integrity. Recommended extinguishing: Water fog, dry chemical, sand; avoid direct high-pressure streams on devices.
ERG Guide 114 recommendation: ERG 114: isolate 100m all directions; if fire involves explosives, evacuate 800m radius and fight fire from maximum distance
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.