☣️ UN 0313 • CLASS 1
Signals, smoke
Placard: Explosive 1.2G. 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 0313
Class: 1
Placard type: Explosive 1.2G
ERG: Guide 112 (check current ERG)
Isolation: ERG 112: Initial isolation 500m in all directions; if fire involved, evacuate 1600m in all directions
Chemical & Response Details
| Also known as | Smoke signalsPyrotechnic smoke signalsSignal smokesMarine smoke signals |
| Appearance | Solid pyrotechnic devices typically in cylindrical containers, various colors. Contains smoke-producing chemical mixtures that may be in pellet or powder form. |
| Flash Point | Not applicable (pyrotechnic device) |
| Boiling Point | Not applicable (pyrotechnic device) |
| Vapor Density | Not applicable (solid pyrotechnic) |
| Water Reactivity | May contain water-reactive chemicals; do not use water on burning devices |
| Extinguishing | Dry chemical, sand, earth. Do not use water or foam on burning pyrotechnics |
| PPE | ⚠️ Level B minimum with full structural firefighting gear; SCBA required due to toxic smoke production |
| Isolation | ERG 112: Initial isolation 500m in all directions; if fire involved, evacuate 1600m in all directions |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- Projection and fragmentation hazard on initiation.
- Blast overpressure in immediate area.
- Sensitive to heat, shock, or electrical current.
- May initiate other explosives in proximity.
First actions (field-minded)
- CALL 911. Then call emergency response telephone number on shipping paper.
- Isolate minimum 500 meters; stage upwind and uphill.
- Request Hazmat + law enforcement immediately.
- Control ignition sources; deny unauthorized entry.
- Do not approach — projectile/fragmentation hazard.
- Consult current ERG Guide 112 and follow SOP/SOG.
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UN 0313 — Signals, smoke HAZMAT RADIO NOTE — UN 0313
Product: Signals, smoke
Class 1 / Explosive 1.2G / ERG 112
PPE: Level B minimum with full structural firefighting gear; SCBA required due to toxic smoke production
ISOLATION: ERG 112: Initial isolation 500m in all directions; if fire involved, evacuate 1600m in all directions
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 0313 — Signals, smoke
Class: 1 | Placard: Explosive 1.2G | ERG Guide: 112
Appearance: Solid pyrotechnic devices typically in cylindrical containers, various colors. Contains smoke-producing chemical mixtures that may be in pellet or powder form.
Water Reactivity: May contain water-reactive chemicals; do not use water on burning devices
Extinguishing: Dry chemical, sand, earth. Do not use water or foam on burning pyrotechnics
PPE: Level B minimum with full structural firefighting gear; SCBA required due to toxic smoke production
Isolation: ERG 112: Initial isolation 500m in all directions; if fire involved, evacuate 1600m in all directions
— Key Hazards —
• Projection and fragmentation hazard on initiation.
• Blast overpressure in immediate area.
• Sensitive to heat, shock, or electrical current.
— First Actions —
• CALL 911. Then call emergency response telephone number on shipping paper.
• Isolate minimum 500 meters; stage upwind and uphill.
• Request Hazmat + law enforcement immediately.
• Control ignition sources; deny unauthorized entry.
SOURCE: allfirefighter.com/hazmat/un/0313 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN0313 Signals, smoke Cls1 ERG112 | ERG 112: Initial isolation 500m in all directions; if fire involved, evacuate 16 | allfirefighter.com/hazmat/un/0313SMS / 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/0313
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
Projection and fragmentation hazard on initiation. Blast overpressure in immediate area. Sensitive to heat, shock, or electrical current. May initiate other explosives in proximity.
CALL 911. Then call emergency response telephone number on shipping paper. Isolate minimum 500 meters; stage upwind and uphill. Request Hazmat + law enforcement immediately.
Level B minimum with full structural firefighting gear; SCBA required due to toxic smoke production
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.