☣️ UN 0326 • CLASS 1
Cartridges for weapons, blank
Placard: Explosive 1.1C. 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 0326
Class: 1
Placard type: Explosive 1.1C
ERG: Guide 112 (check current ERG)
Isolation: ERG 112: Isolate 500m (1600 ft) in all directions; if fire or cargo heated, evacuate 1600m (1 mile) radius; treat as mass explosion hazard
Chemical & Response Details
| Also known as | Blank ammunition cartridgesBlank firing cartridgesTraining ammunition (blank)Simulation cartridges |
| Appearance | Metallic or plastic cartridge cases containing smokeless powder or black powder propellant with crimped or plugged closure. No projectile present. Color varies by manufacturer and type. |
| Flash Point | Not applicable (explosive solid) |
| Boiling Point | Not applicable (explosive solid) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | No significant reaction with water, but moisture may degrade propellant over time |
| Extinguishing | Do not use water on burning explosives; use dry chemical, sand, or earth from a distance |
| PPE | ⚠️ Level B minimum with full structural firefighting gear; SCBA mandatory; maintain maximum distance; evacuate area immediately if involved in fire |
| Isolation | ERG 112: Isolate 500m (1600 ft) in all directions; if fire or cargo heated, evacuate 1600m (1 mile) radius; treat as mass explosion hazard |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- Mass explosion hazard — entire load may detonate simultaneously.
- Severe blast overpressure and fragmentation.
- Sensitive to heat, shock, and friction.
- Secondary fire and debris hazard.
First actions (field-minded)
- 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.
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UN 0326 — Cartridges for weapons, blank HAZMAT RADIO NOTE — UN 0326
Product: Cartridges for weapons, blank
Class 1 / Explosive 1.1C / ERG 112
PPE: Level B minimum with full structural firefighting gear; SCBA mandatory; maintain maximum distance; evacuate area immediately if involved in fire
ISOLATION: ERG 112: Isolate 500m (1600 ft) in all directions; if fire or cargo heated, evacuate 1600m (1 mile) radius; 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 0326 — Cartridges for weapons, blank
Class: 1 | Placard: Explosive 1.1C | ERG Guide: 112
Appearance: Metallic or plastic cartridge cases containing smokeless powder or black powder propellant with crimped or plugged closure. No projectile present. Color varies by manufacturer and type.
Water Reactivity: No significant reaction with water, but moisture may degrade propellant over time
Extinguishing: Do not use water on burning explosives; use dry chemical, sand, or earth from a distance
PPE: Level B minimum with full structural firefighting gear; SCBA mandatory; maintain maximum distance; evacuate area immediately if involved in fire
Isolation: ERG 112: Isolate 500m (1600 ft) in all directions; if fire or cargo heated, evacuate 1600m (1 mile) radius; 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/0326 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN0326 Cartridges for weapons, blank Cls1 ERG112 | allfirefighter.com/hazmat/un/0326SMS / 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/0326
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
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 B minimum with full structural firefighting gear; SCBA mandatory; maintain maximum distance; evacuate area immediately if involved in fire
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.