☣️ UN 0383 • CLASS 1
Components, explosive train, n.o.s.
Placard: Explosive 1.2B. 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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Quick details
UN 0383
Class: 1
Placard type: Explosive 1.2B
ERG: Guide 112 (check current ERG)
Isolation: ERG 112: Initial isolation 500m (1600 ft) in all directions. If fire or explosion involved, evacuate 1600m (1 mile) radius. Treat as mass explosion hazard Division 1.1
Chemical & Response Details
| Also known as | Explosive train assembliesDetonator assembliesInitiator componentsExplosive transmission devices |
| Appearance | Assembled explosive devices containing multiple explosive components in sequence (primers, detonators, boosters, main charges). Typically metal or plastic housings containing solid explosive materials. May vary in size and configuration depending on application. |
| Flash Point | Not applicable (explosive solid) |
| Boiling Point | Not applicable (explosive material) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | No significant reaction with water, but moisture may affect reliability of electrical components |
| Extinguishing | DO NOT use water or foam. Use dry chemical or sand from safe distance only after expert consultation |
| PPE | ⚠️ Minimum 1000 feet evacuation radius. Full Level A with blast-resistant gear if approach necessary. SCBA mandatory. Only trained explosive ordnance disposal (EOD) personnel should handle |
| Isolation | ERG 112: Initial isolation 500m (1600 ft) in all directions. If fire or explosion involved, evacuate 1600m (1 mile) radius. Treat as mass explosion hazard Division 1.1 |
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 0383 — Components, explosive train, n.o.s. HAZMAT RADIO NOTE — UN 0383
Product: Components, explosive train, n.o.s.
Class 1 / Explosive 1.2B / ERG 112
PPE: Minimum 1000 feet evacuation radius. Full Level A with blast-resistant gear if approach necessary. SCBA mandatory. Only trained explosive ordnance disposal (EOD) personnel should handle
ISOLATION: ERG 112: Initial isolation 500m (1600 ft) in all directions. If fire or explosion involved, evacuate 1600m (1 mile) radius. Treat as mass explosion hazard Division 1.1
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 0383 — Components, explosive train, n.o.s.
Class: 1 | Placard: Explosive 1.2B | ERG Guide: 112
Appearance: Assembled explosive devices containing multiple explosive components in sequence (primers, detonators, boosters, main charges). Typically metal or plastic housings containing solid explosive materials. May vary in size and configuration depending on application.
Water Reactivity: No significant reaction with water, but moisture may affect reliability of electrical components
Extinguishing: DO NOT use water or foam. Use dry chemical or sand from safe distance only after expert consultation
PPE: Minimum 1000 feet evacuation radius. Full Level A with blast-resistant gear if approach necessary. SCBA mandatory. Only trained explosive ordnance disposal (EOD) personnel should handle
Isolation: ERG 112: Initial isolation 500m (1600 ft) in all directions. If fire or explosion involved, evacuate 1600m (1 mile) radius. Treat as mass explosion hazard Division 1.1
— 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/0383 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN0383 Components, explosive train, n.o.s. Cls1 ERG112 | allfirefighter.com/hazmat/un/0383SMS / 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/0383
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.
Minimum 1000 feet evacuation radius. Full Level A with blast-resistant gear if approach necessary. SCBA mandatory. Only trained explosive ordnance disposal (EOD) personnel should handle
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.