☣️ UN 2814 • CLASS 6
UN 2814 — Infectious substance, affecting humans
Placard: Infectious Substance. ERG Guide 158. 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 2814 Quick Details
UN 2814
Product name: Infectious substance, affecting humans
DOT Class: 6
Placard type: Infectious Substance
ERG Guide: 158 (check current ERG)
Initial isolation: ERG 158: isolate spill area immediately for at least 25 meters in all directions; deny entry except to authorized personnel with proper PPE; notify health authorities and specialized cleanup teams
Common Hazards of UN 2814
- Inhalation or contact with substance may cause infection, disease or death.
- Category A Infectious Substances (UN2814, UN2900 or UN3549) are more hazardous, or are in a more
- Runoff from fire control or dilution water may cause environmental contamination.
- Damaged packages containing solid CO2 as a refrigerant may produce water or frost from condensation
- Contact with solid CO2 may cause burns, severe injury and/or frostbite.
- Some of these materials may burn, but none ignite readily.
- Some may be transported in flammable liquids.
Chemical Identity & Physical Properties
| Also known as | Category A Infectious SubstanceBiohazardous Material Affecting HumansEtiologic AgentPathogenic MaterialDiagnostic Specimens |
| Appearance | Variable appearance depending on specific agent; may be liquid cultures, tissue samples, blood products, or solid specimens. Typically packaged in sealed containers with multiple layers of containment. |
| Flash Point | Not applicable (biological material) |
| Boiling Point | Not applicable (biological material) |
| Vapor Density | Not applicable (biological material) |
| Water Reactivity | No chemical reaction with water; however, water contact may spread infectious agents and cause environmental contamination |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 2814
Extinguishing Media
Not applicable - use containment and disinfection procedures rather than fire suppression agents; if fire present, use any extinguishing media but avoid water dispersion
PPE Requirements
⚠️ Level A or B with full biohazard protection required; SCBA mandatory; impermeable suits; double gloves; respiratory protection against airborne pathogens; avoid all contact with material
Isolation & Evacuation
ERG 158: isolate spill area immediately for at least 25 meters in all directions; deny entry except to authorized personnel with proper PPE; notify health authorities and specialized cleanup teams
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 158).
First Actions for a UN 2814 Incident
- CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper
- Keep unauthorized personnel away.
- Stay upwind, uphill and/or upstream.
- Consult the shipping paper to identify the substance involved.
- Isolate spill or leak area for at least 25 meters (75 feet) in all directions.
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📋 Copy & Share Field Card
UN 2814 — Infectious substance, affecting humansHAZMAT RADIO NOTE — UN 2814
Product: Infectious substance, affecting humans
Class 6 / Infectious Substance / ERG 158
PPE: Level A or B with full biohazard protection required; SCBA mandatory; impermeable suits; double gloves; respiratory protection against airborne pathogens; avoid all contact with material
ISOLATION: ERG 158: isolate spill area immediately for at least 25 meters in all directions; deny entry except to authorized personnel with proper PPE; notify health authorities and specialized cleanup teams
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 2814 — Infectious substance, affecting humans
Class: 6 | Placard: Infectious Substance | ERG Guide: 158
Appearance: Variable appearance depending on specific agent; may be liquid cultures, tissue samples, blood products, or solid specimens. Typically packaged in sealed containers with multiple layers of containment.
Water Reactivity: No chemical reaction with water; however, water contact may spread infectious agents and cause environmental contamination
Extinguishing: Not applicable - use containment and disinfection procedures rather than fire suppression agents; if fire present, use any extinguishing media but avoid water dispersion
PPE: Level A or B with full biohazard protection required; SCBA mandatory; impermeable suits; double gloves; respiratory protection against airborne pathogens; avoid all contact with material
Isolation: ERG 158: isolate spill area immediately for at least 25 meters in all directions; deny entry except to authorized personnel with proper PPE; notify health authorities and specialized cleanup teams
— Key Hazards —
• Inhalation or contact with substance may cause infection, disease or death.
• Category A Infectious Substances (UN2814, UN2900 or UN3549) are more hazardous, or are in a more
• Runoff from fire control or dilution water may cause environmental contamination.
— First Actions —
• CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper
• Keep unauthorized personnel away.
• Stay upwind, uphill and/or upstream.
• Consult the shipping paper to identify the substance involved.
SOURCE: allfirefighter.com/hazmat/un/2814 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN2814 Infectious substance, affecting humans Cls6 ERG158 | allfirefighter.com/hazmat/un/2814SMS / 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/2814
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Frequently Asked Questions about UN 2814
Inhalation or contact with substance may cause infection, disease or death. Category A Infectious Substances (UN2814, UN2900 or UN3549) are more hazardous, or are in a more Runoff from fire control or dilution water may cause environmental contamination. Damaged packages containing solid CO2 as a refrigerant may produce water or frost from condensation Contact with solid CO2 may cause burns, severe injury and/or frostbite. Some of these materials may burn, but none ignite readily. Some may be transported in flammable liquids.
CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper Keep unauthorized personnel away. Stay upwind, uphill and/or upstream.
Level A or B with full biohazard protection required; SCBA mandatory; impermeable suits; double gloves; respiratory protection against airborne pathogens; avoid all contact with material
Water reactivity: No chemical reaction with water; however, water contact may spread infectious agents and cause environmental contamination. Recommended extinguishing: Not applicable - use containment and disinfection procedures rather than fire suppression agents; if fire present, use any extinguishing media but avoid water dispersion.
ERG Guide 158 recommendation: ERG 158: isolate spill area immediately for at least 25 meters in all directions; deny entry except to authorized personnel with proper PPE; notify health authorities and specialized cleanup teams
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 158 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.