☣️ UN 0508 • CLASS 1
Igniters
Placard: Explosive 1.4G. 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 0508
Class: 1
Placard type: Explosive 1.4G
ERG: Guide 114 (check current ERG)
Isolation: ERG 114: Isolate 25m in all directions initially. If fire or major spill, isolate 80m and consider evacuation for 160m downwind. Treat as potential explosive hazard.
Chemical & Response Details
| Also known as | SquibsElectric ignitersPyrotechnic ignitersIgniter assembliesDetonator igniters |
| Appearance | Small explosive devices typically consisting of metal or plastic housings containing pyrotechnic compositions or small explosive charges. May appear as cylindrical tubes, wire leads with attached capsules, or compact assemblies. Designed to initiate combustion or deflagration. |
| Flash Point | Not applicable (explosive device) |
| Boiling Point | Not applicable (explosive device) |
| Vapor Density | Not applicable (solid explosive device) |
| Water Reactivity | Generally no reaction with water, but effectiveness may be compromised if wet. Some compositions may contain water-reactive materials. |
| Extinguishing | Dry chemical, CO2, or sand preferred. Water spray may be used at distance to cool exposures but avoid direct application to devices. |
| PPE | ⚠️ Level C minimum for handling intact devices; Level B with SCBA if fire or decomposition present. Approach from upwind, use blast shields if available. |
| Isolation | ERG 114: Isolate 25m in all directions initially. If fire or major spill, isolate 80m and consider evacuation for 160m downwind. Treat as potential explosive hazard. |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- Minor blast or fire hazard — limited effect.
- Localized burning or deflagration possible.
- Smoke and heat from burning.
- Low mass explosion risk under normal conditions.
First actions (field-minded)
- 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 0508 — Igniters HAZMAT RADIO NOTE — UN 0508
Product: Igniters
Class 1 / Explosive 1.4G / ERG 114
PPE: Level C minimum for handling intact devices; Level B with SCBA if fire or decomposition present. Approach from upwind, use blast shields if available.
ISOLATION: ERG 114: Isolate 25m in all directions initially. If fire or major spill, isolate 80m and consider evacuation for 160m downwind. Treat as potential explosive hazard.
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 0508 — Igniters
Class: 1 | Placard: Explosive 1.4G | ERG Guide: 114
Appearance: Small explosive devices typically consisting of metal or plastic housings containing pyrotechnic compositions or small explosive charges. May appear as cylindrical tubes, wire leads with attached capsules, or compact assemblies. Designed to initiate combustion or deflagration.
Water Reactivity: Generally no reaction with water, but effectiveness may be compromised if wet. Some compositions may contain water-reactive materials.
Extinguishing: Dry chemical, CO2, or sand preferred. Water spray may be used at distance to cool exposures but avoid direct application to devices.
PPE: Level C minimum for handling intact devices; Level B with SCBA if fire or decomposition present. Approach from upwind, use blast shields if available.
Isolation: ERG 114: Isolate 25m in all directions initially. If fire or major spill, isolate 80m and consider evacuation for 160m downwind. Treat as potential explosive hazard.
— 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/0508 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN0508 Igniters Cls1 ERG114 | ERG 114: Isolate 25m in all directions initially. If fire or major spill, isolat | allfirefighter.com/hazmat/un/0508SMS / 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/0508
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
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 intact devices; Level B with SCBA if fire or decomposition present. Approach from upwind, use blast shields if available.
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.