☣️ UN 0190 • CLASS 1
UN 0190 — Samples, explosive
Placard: Explosive 1.1A. 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 0190 Quick Details
UN 0190
Product name: Samples, explosive
DOT Class: 1
Placard type: Explosive 1.1A
ERG Guide: 112 (check current ERG)
Initial isolation: ERG 112: Isolate 500m (1600 ft) in all directions; evacuate 1600m (1 mile) if fire or projection hazard; consider blast effects
Common Hazards of UN 0190
- 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
| Appearance | Variable appearance depending on sample type; may be solid, powder, or liquid form; typically handled in small quantities for testing, research, or quality control purposes. |
| Flash Point | Not applicable (explosive material) |
| Boiling Point | Not applicable (explosive material) |
| Vapor Density | Not applicable (variable composition) |
| Water Reactivity | Variable depending on sample composition; avoid water contact unless sample characteristics are known |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 0190
Extinguishing Media
Do not use water or foam; use flooding quantities of water from safe distance if fire cannot be avoided
PPE Requirements
⚠️ Level B minimum with blast-resistant equipment; SCBA required; maintain maximum distance; use remote handling equipment when possible
Isolation & Evacuation
ERG 112: Isolate 500m (1600 ft) in all directions; evacuate 1600m (1 mile) if fire or projection hazard; consider blast effects
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 112).
First Actions for a UN 0190 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.
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📋 Copy & Share Field Card
UN 0190 — Samples, explosiveHAZMAT RADIO NOTE — UN 0190
Product: Samples, explosive
Class 1 / Explosive 1.1A / ERG 112
PPE: Level B minimum with blast-resistant equipment; SCBA required; maintain maximum distance; use remote handling equipment when possible
ISOLATION: ERG 112: Isolate 500m (1600 ft) in all directions; evacuate 1600m (1 mile) if fire or projection hazard; consider blast effects
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 0190 — Samples, explosive
Class: 1 | Placard: Explosive 1.1A | ERG Guide: 112
Appearance: Variable appearance depending on sample type; may be solid, powder, or liquid form; typically handled in small quantities for testing, research, or quality control purposes.
Water Reactivity: Variable depending on sample composition; avoid water contact unless sample characteristics are known
Extinguishing: Do not use water or foam; use flooding quantities of water from safe distance if fire cannot be avoided
PPE: Level B minimum with blast-resistant equipment; SCBA required; maintain maximum distance; use remote handling equipment when possible
Isolation: ERG 112: Isolate 500m (1600 ft) in all directions; evacuate 1600m (1 mile) if fire or projection hazard; consider blast effects
— 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/0190 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN0190 Samples, explosive Cls1 ERG112 | ERG 112: Isolate 500m (1600 ft) in all directions; evacuate 1600m (1 mile) if fi | allfirefighter.com/hazmat/un/0190SMS / 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/0190
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 0190
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 blast-resistant equipment; SCBA required; maintain maximum distance; use remote handling equipment when possible
Water reactivity: Variable depending on sample composition; avoid water contact unless sample characteristics are known. Recommended extinguishing: Do not use water or foam; use flooding quantities of water from safe distance if fire cannot be avoided.
ERG Guide 112 recommendation: ERG 112: Isolate 500m (1600 ft) in all directions; evacuate 1600m (1 mile) if fire or projection hazard; consider blast effects
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.