☣️ UN 3332 • CLASS 7
UN 3332 — Radioactive material, Type A package, special form, non fissile or fissile-excepted
Placard: Radioactive. ERG Guide 164. 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 3332 Quick Details
UN 3332
Product name: Radioactive material, Type A package, special form, non fissile or fissile-excepted
DOT Class: 7
Placard type: Radioactive
ERG Guide: 164 (check current ERG)
Initial isolation: ERG 164: isolate damaged packages 25m all directions; if contents released, follow ERG guidance for radioactive material exposure zones
Common Hazards of UN 3332
- Radiation presents minimal risk to transport workers, emergency response personnel and the public
- Undamaged packages are safe; contents of damaged packages may cause external radiation exposure,
- Contamination and internal radiation hazards are not expected, but not impossible.
- Type A packages (cartons, boxes, drums, articles, etc.) identified as Type A by marking on packages
- Type B packages, and the rarely occurring Type C packages, (large and small, usually metal) contain
- Radioactive White-I labels indicate radiation levels outside single, isolated, undamaged packages are
- Radioactive Yellow-II and Yellow-III labeled packages have higher radiation levels. The transport index
- Radiation from the package contents, usually in durable metal capsules, can be detected by most
Chemical Identity & Physical Properties
| Also known as | Type A special form radioactive packageNon-fissile radioactive material Type AFissile-excepted Type A packageRAM Type A special form |
| Appearance | Sealed package containing radioactive material in special form (non-dispersible solid or sealed capsule). Package integrity prevents release under normal transport conditions. |
| Flash Point | Not applicable (radioactive material) |
| Boiling Point | Not applicable (sealed package) |
| Vapor Density | Not applicable (sealed package) |
| Water Reactivity | No significant reaction (sealed package) |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 3332
Extinguishing Media
Not applicable; radiation hazard, not chemical fire hazard
PPE Requirements
⚠️ Standard PPE for intact packages; if damaged: dosimetry required, minimize exposure time and distance, increase shielding as available
Isolation & Evacuation
ERG 164: isolate damaged packages 25m all directions; if contents released, follow ERG guidance for radioactive material exposure zones
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 164).
First Actions for a UN 3332 Incident
- CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper
- Priorities for rescue, life-saving, first aid, fire control and other hazards are higher than the
- Radiation Authority must be notified of accident conditions. Radiation Authority is usually responsible for
- Stay upwind, uphill and/or upstream. • Keep unauthorized personnel away.
- Delay final cleanup until instructions or advice is received from Radiation Authority.
- Isolate spill or leak area for at least 25 meters (75 feet) in all directions.
- Consider initial downwind evacuation for at least 100 meters (330 feet).
Advertisement
📋 Copy & Share Field Card
UN 3332 — Radioactive material, Type A package, spHAZMAT RADIO NOTE — UN 3332
Product: Radioactive material, Type A package, special form, non fissile or fissile-excepted
Class 7 / Radioactive / ERG 164
PPE: Standard PPE for intact packages; if damaged: dosimetry required, minimize exposure time and distance, increase shielding as available
ISOLATION: ERG 164: isolate damaged packages 25m all directions; if contents released, follow ERG guidance for radioactive material exposure zones
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 3332 — Radioactive material, Type A package, special form, non fissile or fissile-excepted
Class: 7 | Placard: Radioactive | ERG Guide: 164
Appearance: Sealed package containing radioactive material in special form (non-dispersible solid or sealed capsule). Package integrity prevents release under normal transport conditions.
Water Reactivity: No significant reaction (sealed package)
Extinguishing: Not applicable; radiation hazard, not chemical fire hazard
PPE: Standard PPE for intact packages; if damaged: dosimetry required, minimize exposure time and distance, increase shielding as available
Isolation: ERG 164: isolate damaged packages 25m all directions; if contents released, follow ERG guidance for radioactive material exposure zones
— Key Hazards —
• Radiation presents minimal risk to transport workers, emergency response personnel and the public
• Undamaged packages are safe; contents of damaged packages may cause external radiation exposure,
• Contamination and internal radiation hazards are not expected, but not impossible.
— First Actions —
• CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper
• Priorities for rescue, life-saving, first aid, fire control and other hazards are higher than the
• Radiation Authority must be notified of accident conditions. Radiation Authority is usually responsible for
• Stay upwind, uphill and/or upstream. • Keep unauthorized personnel away.
SOURCE: allfirefighter.com/hazmat/un/3332 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN3332 Radioactive material, Type A package, special form, non fissile or fissile-excepted Cls7 ERG164 | allfirefighter.com/hazmat/un/3332SMS / 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/3332
Advertisement
Frequently Asked Questions about UN 3332
Radiation presents minimal risk to transport workers, emergency response personnel and the public Undamaged packages are safe; contents of damaged packages may cause external radiation exposure, Contamination and internal radiation hazards are not expected, but not impossible. Type A packages (cartons, boxes, drums, articles, etc.) identified as Type A by marking on packages Type B packages, and the rarely occurring Type C packages, (large and small, usually metal) contain Radioactive White-I labels indicate radiation levels outside single, isolated, undamaged packages are Radioactive Yellow-II and Yellow-III labeled packages have higher radiation levels. The transport index Radiation from the package contents, usually in durable metal capsules, can be detected by most
CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper Priorities for rescue, life-saving, first aid, fire control and other hazards are higher than the Radiation Authority must be notified of accident conditions. Radiation Authority is usually responsible for
Standard PPE for intact packages; if damaged: dosimetry required, minimize exposure time and distance, increase shielding as available
Water reactivity: No significant reaction (sealed package). Recommended extinguishing: Not applicable; radiation hazard, not chemical fire hazard.
ERG Guide 164 recommendation: ERG 164: isolate damaged packages 25m all directions; if contents released, follow ERG guidance for radioactive material exposure zones
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 164 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.