☣️ UN 0093 • CLASS 1
UN 0093 — Flares, aerial
Placard: Explosive 1.3G. ERG Guide 112. 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 0093 Quick Details
UN 0093
Product name: Flares, aerial
DOT Class: 1
Placard type: Explosive 1.3G
ERG Guide: 112 (check current ERG)
Initial isolation: ERG 112: Initial isolation 500 meters (1640 feet) in all directions; if fire or cargo is on fire, consider evacuation for 1600 meters (1 mile) in all directions
Common Hazards of UN 0093
- Fire and fragmentation hazard
- Bright burning — eye hazard
- May ignite surrounding materials
Chemical Identity & Physical Properties
| Also known as | Aerial flaresSignal flaresIlluminating flaresPyrotechnic aerial signals |
| Appearance | Solid pyrotechnic devices containing metal powders (typically magnesium or aluminum) and oxidizers in cylindrical cartridges. Designed to produce intense bright light when ignited. |
| Flash Point | Not applicable (pyrotechnic composition) |
| Boiling Point | Not applicable (pyrotechnic composition) |
| Vapor Density | Not applicable (solid pyrotechnic) |
| Water Reactivity | May react with water if composition contains reactive metals; some formulations contain water-reactive magnesium |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 0093
Extinguishing Media
Use dry chemical, sand, or dry earth only; avoid water if metal-containing; CO2 and foam generally not effective on burning pyrotechnics
PPE Requirements
⚠️ Level B minimum; SCBA required; full protective gear due to intense heat, bright light (eye protection essential), and fragmentation risk
Isolation & Evacuation
ERG 112: Initial isolation 500 meters (1640 feet) in all directions; if fire or cargo is on fire, consider evacuation for 1600 meters (1 mile) in all directions
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 112).
First Actions for a UN 0093 Incident
- CALL 911. Then call emergency response number on shipping paper.
- Isolate area; keep unauthorized personnel away
- Stage upwind; deny entry
- Request Hazmat + law enforcement
- Consult current ERG Guide 112 and SOP/SOG
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UN 0093 — Flares, aerialHAZMAT RADIO NOTE — UN 0093
Product: Flares, aerial
Class 1 / Explosive 1.3G / ERG 112
PPE: Level B minimum; SCBA required; full protective gear due to intense heat, bright light (eye protection essential), and fragmentation risk
ISOLATION: ERG 112: Initial isolation 500 meters (1640 feet) in all directions; if fire or cargo is on fire, consider evacuation for 1600 meters (1 mile) 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 0093 — Flares, aerial
Class: 1 | Placard: Explosive 1.3G | ERG Guide: 112
Appearance: Solid pyrotechnic devices containing metal powders (typically magnesium or aluminum) and oxidizers in cylindrical cartridges. Designed to produce intense bright light when ignited.
Water Reactivity: May react with water if composition contains reactive metals; some formulations contain water-reactive magnesium
Extinguishing: Use dry chemical, sand, or dry earth only; avoid water if metal-containing; CO2 and foam generally not effective on burning pyrotechnics
PPE: Level B minimum; SCBA required; full protective gear due to intense heat, bright light (eye protection essential), and fragmentation risk
Isolation: ERG 112: Initial isolation 500 meters (1640 feet) in all directions; if fire or cargo is on fire, consider evacuation for 1600 meters (1 mile) in all directions
— Key Hazards —
• Fire and fragmentation hazard
• Bright burning — eye hazard
• May ignite surrounding materials
— First Actions —
• CALL 911. Then call emergency response number on shipping paper.
• Isolate area; keep unauthorized personnel away
• Stage upwind; deny entry
• Request Hazmat + law enforcement
SOURCE: allfirefighter.com/hazmat/un/0093 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN0093 Flares, aerial Cls1 ERG112 | ERG 112: Initial isolation 500 meters (1640 feet) in all directions; if fire or | allfirefighter.com/hazmat/un/0093SMS / 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/0093
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 0093
Fire and fragmentation hazard Bright burning — eye hazard May ignite surrounding materials
CALL 911. Then call emergency response number on shipping paper. Isolate area; keep unauthorized personnel away Stage upwind; deny entry
Level B minimum; SCBA required; full protective gear due to intense heat, bright light (eye protection essential), and fragmentation risk
Water reactivity: May react with water if composition contains reactive metals; some formulations contain water-reactive magnesium. Recommended extinguishing: Use dry chemical, sand, or dry earth only; avoid water if metal-containing; CO2 and foam generally not effective on burning pyrotechnics.
ERG Guide 112 recommendation: ERG 112: Initial isolation 500 meters (1640 feet) in all directions; if fire or cargo is on fire, consider evacuation for 1600 meters (1 mile) in all directions
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.