☣️ UN 0094 • CLASS 1
UN 0094 — Flash powder
Placard: Explosive 1.1G. ERG Guide 112. 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.
Advertisement
UN 0094 Quick Details
UN 0094
Product name: Flash powder
DOT Class: 1
Placard type: Explosive 1.1G
ERG Guide: 112 (check current ERG)
Initial isolation: ERG 112: Initial isolation 500m in all directions; for fire or large spill evacuate 1600m downwind; treat as mass explosion hazard
Common Hazards of UN 0094
- Mass explosion hazard — entire load may detonate simultaneously.
- Severe blast overpressure and fragmentation.
- Sensitive to heat, shock, and friction.
- Secondary fire and debris hazard.
Chemical Identity & Physical Properties
| Also known as | Photoflash powderPyrotechnic flash compositionFlash compositionMagnesium flash powder |
| Appearance | Fine gray to silver metallic powder mixture, typically composed of aluminum or magnesium metal combined with oxidizing agents such as potassium perchlorate. Odorless when dry. |
| Flash Point | Not applicable (explosive solid) |
| Boiling Point | Not applicable (decomposes explosively) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | May react with water if magnesium-based; keep dry to prevent degradation and sensitivity increase |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 0094
Extinguishing Media
Do not use water or foam; use dry sand or inert material for small fires; evacuate for larger incidents
PPE Requirements
⚠️ Level A required for handling; full explosive ordinance disposal (EOD) protocols; remote operations preferred; SCBA mandatory
Isolation & Evacuation
ERG 112: Initial isolation 500m in all directions; for fire or large spill evacuate 1600m downwind; treat as mass explosion hazard
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 112).
First Actions for a UN 0094 Incident
- CALL 911. Then call emergency response telephone number on shipping paper.
- Establish large isolation zone — minimum 500 meters in all directions.
- Stage upwind, uphill; limit personnel to essential responders only.
- Request Hazmat + law enforcement + additional resources immediately.
- Do not fight fire — evacuate and isolate; let burn if no life safety risk.
- Protect exposures only if safe and directed by command.
- Consult current ERG Guide 112 and follow SOP/SOG.
Advertisement
📋 Copy & Share Field Card
UN 0094 — Flash powderHAZMAT RADIO NOTE — UN 0094
Product: Flash powder
Class 1 / Explosive 1.1G / ERG 112
PPE: Level A required for handling; full explosive ordinance disposal (EOD) protocols; remote operations preferred; SCBA mandatory
ISOLATION: ERG 112: Initial isolation 500m in all directions; for fire or large spill evacuate 1600m downwind; treat as mass explosion 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 0094 — Flash powder
Class: 1 | Placard: Explosive 1.1G | ERG Guide: 112
Appearance: Fine gray to silver metallic powder mixture, typically composed of aluminum or magnesium metal combined with oxidizing agents such as potassium perchlorate. Odorless when dry.
Water Reactivity: May react with water if magnesium-based; keep dry to prevent degradation and sensitivity increase
Extinguishing: Do not use water or foam; use dry sand or inert material for small fires; evacuate for larger incidents
PPE: Level A required for handling; full explosive ordinance disposal (EOD) protocols; remote operations preferred; SCBA mandatory
Isolation: ERG 112: Initial isolation 500m in all directions; for fire or large spill evacuate 1600m downwind; treat as mass explosion hazard
— Key Hazards —
• Mass explosion hazard — entire load may detonate simultaneously.
• Severe blast overpressure and fragmentation.
• Sensitive to heat, shock, and friction.
— First Actions —
• CALL 911. Then call emergency response telephone number on shipping paper.
• Establish large isolation zone — minimum 500 meters in all directions.
• Stage upwind, uphill; limit personnel to essential responders only.
• Request Hazmat + law enforcement + additional resources immediately.
SOURCE: allfirefighter.com/hazmat/un/0094 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN0094 Flash powder Cls1 ERG112 | ERG 112: Initial isolation 500m in all directions; for fire or large spill evacu | allfirefighter.com/hazmat/un/0094SMS / 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/0094
Related UN Numbers in Class 1
Discovery block for training / quick reference. Always consult the current ERG + your SOP/SOG for operations.
Advertisement
Frequently Asked Questions about UN 0094
Mass explosion hazard — entire load may detonate simultaneously. Severe blast overpressure and fragmentation. Sensitive to heat, shock, and friction. Secondary fire and debris hazard.
CALL 911. Then call emergency response telephone number on shipping paper. Establish large isolation zone — minimum 500 meters in all directions. Stage upwind, uphill; limit personnel to essential responders only.
Level A required for handling; full explosive ordinance disposal (EOD) protocols; remote operations preferred; SCBA mandatory
Water reactivity: May react with water if magnesium-based; keep dry to prevent degradation and sensitivity increase. Recommended extinguishing: Do not use water or foam; use dry sand or inert material for small fires; evacuate for larger incidents.
ERG Guide 112 recommendation: ERG 112: Initial isolation 500m in all directions; for fire or large spill evacuate 1600m downwind; treat as mass explosion hazard
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.