☣️ UN 3080 • CLASS 6
Isocyanate solution, poisonous, flammable, n.o.s.
Placard: Toxic. 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.
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Quick details
UN 3080
Class: 6
Placard type: Toxic
ERG: Guide 155 (check current ERG)
Isolation: ERG 155: Initial isolation 50m all directions; protective action distance 0.3km day/0.6km night for small spills; 0.8km day/2.4km night for large spills
Chemical & Response Details
| Also known as | Isocyanate solution n.o.s.Poisonous isocyanate solutionFlammable isocyanate solutionToxic isocyanate mixture |
| Appearance | Varies depending on specific isocyanate composition; typically clear to pale yellow liquid with pungent, irritating odor. Highly toxic vapors. |
| Flash Point | Varies by formulation, typically <23C (<73F) - Class 3 flammable liquid |
| Boiling Point | Varies by specific isocyanate compound, typically 100-200C (212-392F) |
| Vapor Density | >1 (heavier than air); vapors collect in low areas and confined spaces |
| Water Reactivity | Reacts with water producing heat and carbon dioxide; avoid water contact when possible |
| Extinguishing | Alcohol-resistant foam preferred; CO2, dry chemical; avoid direct water streams |
| PPE | ⚠️ Level A or B with SCBA required; impervious chemical protective clothing; highly toxic by inhalation and skin contact |
| Isolation | ERG 155: Initial isolation 50m all directions; protective action distance 0.3km day/0.6km night for small spills; 0.8km day/2.4km night for large spills |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
- Vapors form explosive mixtures with air: indoors, outdoors and sewers explosion hazards.
- Most vapors are heavier than air. They will spread along the ground and collect in low or confined areas
- Vapors may travel to source of ignition and flash back.
- Those substances designated with a (P) may polymerize explosively when heated or involved in a fire.
- Substance will react with water (some violently) releasing flammable, toxic or corrosive gases and runoff.
- Corrosives in contact with metals may evolve flammable hydrogen gas.
- Containers may explode when heated or if contaminated with water.
First actions (field-minded)
- CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper
- Keep unauthorized personnel away.
- Stay upwind, uphill and/or upstream.
- Ventilate closed spaces before entering, but only if properly trained and equipped.
- Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters
- For highlighted materials: see Table 1 - Initial Isolation and Protective Action Distances.
- For non-highlighted materials: increase the immediate precautionary measure distance, in the downwind
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UN 3080 — Isocyanate solution, poisonous, flammabl HAZMAT RADIO NOTE — UN 3080
Product: Isocyanate solution, poisonous, flammable, n.o.s.
Class 6 / Toxic / ERG 155
PPE: Level A or B with SCBA required; impervious chemical protective clothing; highly toxic by inhalation and skin contact
ISOLATION: ERG 155: Initial isolation 50m all directions; protective action distance 0.3km day/0.6km night for small spills; 0.8km day/2.4km night for large spills
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 3080 — Isocyanate solution, poisonous, flammable, n.o.s.
Class: 6 | Placard: Toxic | ERG Guide: 155
Appearance: Varies depending on specific isocyanate composition; typically clear to pale yellow liquid with pungent, irritating odor. Highly toxic vapors.
Water Reactivity: Reacts with water producing heat and carbon dioxide; avoid water contact when possible
Extinguishing: Alcohol-resistant foam preferred; CO2, dry chemical; avoid direct water streams
PPE: Level A or B with SCBA required; impervious chemical protective clothing; highly toxic by inhalation and skin contact
Isolation: ERG 155: Initial isolation 50m all directions; protective action distance 0.3km day/0.6km night for small spills; 0.8km day/2.4km night for large spills
— Key Hazards —
• HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
• Vapors form explosive mixtures with air: indoors, outdoors and sewers explosion hazards.
• Most vapors are heavier than air. They will spread along the ground and collect in low or confined areas
— 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.
• Ventilate closed spaces before entering, but only if properly trained and equipped.
SOURCE: allfirefighter.com/hazmat/un/3080 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN3080 Isocyanate solution, poisonous, flammable, n.o.s. Cls6 ERG155 | allfirefighter.com/hazmat/un/3080SMS / 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/3080
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FAQ
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Most vapors are heavier than air. They will spread along the ground and collect in low or confined areas Vapors may travel to source of ignition and flash back. Those substances designated with a (P) may polymerize explosively when heated or involved in a fire. Substance will react with water (some violently) releasing flammable, toxic or corrosive gases and runoff. Corrosives in contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water.
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 SCBA required; impervious chemical protective clothing; highly toxic by inhalation and skin contact
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 155 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.