UN 0372 — Grenades, practice
Placard: Explosive 1.4G. ERG Guide 114. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 0372, Grenades practice, are Class 1.4G training devices designed to simulate military grenades using small explosive charges or pyrotechnic materials, typically identifiable by olive drab coloring or blue markings denoting their non-lethal training purpose. Despite their training designation, they contain live pyrotechnic or explosive initiators and must be handled and transported under full explosive materials regulations.
Hazard overview: UN 0372 presents a minor blast and fire hazard with the potential for localized burning or deflagration if devices are damaged, exposed to fire, or improperly handled. The 1.4G classification confines the expected hazard effect to the immediate vicinity of the device, but activation of even a single unit can cause injury, ignite surrounding materials, and produce hot fragments.
Response guidance: Per ERG Guide 114, isolate the incident area to at least 100 meters in all directions for intact or spilled devices, expanding evacuation to 800 meters if any devices are burning or on fire. Water spray, dry chemical, or CO2 are all acceptable for controlling small fires in the area, with responders maintaining distance and using cover where possible.
UN 0372 Quick Details
Common Hazards of UN 0372
- Minor blast or fire hazard — limited effect.
- Localized burning or deflagration possible.
- Smoke and heat from burning.
- Low mass explosion risk under normal conditions.
Chemical Identity & Physical Properties
UN 0372 practice grenades are metal or composite cylindrical devices resembling military grenades, typically finished in olive drab or marked blue for training identification, and containing small explosive charges or pyrotechnic fill rather than lethal bursting charges.
| Also known as | Practice grenadesTraining grenadesInert grenadesNon-lethal training devices |
| Appearance | Metal or composite cylindrical devices resembling military grenades, typically olive drab or marked with blue for training identification. Contain small explosive charges or pyrotechnic materials for training purposes only. |
| Flash Point | Not applicable (explosive device) |
| Boiling Point | Not applicable (explosive device) |
| Vapor Density | Not applicable (solid device) |
| Water Reactivity | No significant reaction with water |
Fireground Response Guidance — UN 0372
Extinguishing Media
PPE Requirements
Level D protection is the minimum for incidents involving intact, undamaged UN 0372 devices, upgrading to Level C with SCBA if any device is burning, damaged, or actively venting pyrotechnic material.
Isolation & Evacuation
First Actions for a UN 0372 Incident
- 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.
📋 Copy & Share Field Card
UN 0372 — Grenades, practiceUse for: Quick radio or face-to-face size-up. Short, structured, field-ready.
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
Use for: Quick text to command or incoming units. Fits in a single SMS.