☣️ UN 1091 • CLASS 3
Acetone oils
Placard: Flammable. 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 1091
Class: 3
Placard type: Flammable
ERG: Guide 127 (check current ERG)
Isolation: ERG 127: Initial isolation 50m in all directions; protective action distance 0.3 km for large spills; evacuate downwind areas due to heavy vapors
Chemical & Response Details
| Also known as | Acetone oilPyroligneous spiritWood naphtha distillateAcetone distillation residues |
| Appearance | Clear to yellowish-brown liquid with a characteristic acetone-like or solvent odor. Liquid at room temperature with varying composition depending on manufacturing process. |
| Flash Point | -20C to 10C (-4F to 50F) depending on composition |
| Boiling Point | 56C to 150C (133F to 302F) wide range due to mixed components |
| Vapor Density | 2.0-3.0 (heavier than air) |
| Water Reactivity | No significant reaction with water, but may form separate layers |
| Extinguishing | Alcohol-resistant foam (AFFF-AR), dry chemical, CO2; regular foam may be ineffective |
| PPE | ⚠️ Level B minimum with SCBA required in confined spaces or high vapor concentrations; chemical-resistant gloves and splash protection for liquid contact |
| Isolation | ERG 127: Initial isolation 50m in all directions; protective action distance 0.3 km for large spills; evacuate downwind areas due to heavy vapors |
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 may form explosive mixtures with air.
- Vapors may travel to source of ignition and flash back.
- Most vapors are heavier than air. They will spread along the ground and collect in low or confined areas
- Vapor explosion hazard indoors, outdoors or in sewers.
- Those substances designated with a (P) may polymerize explosively when heated or involved in a fire.
- Runoff to sewer may create fire or explosion hazard.
- Containers may explode when heated.
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 for at least 50 meters (150 feet) in all directions.
- Consider initial downwind evacuation for at least 300 meters (1000 feet).
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UN 1091 — Acetone oils HAZMAT RADIO NOTE — UN 1091
Product: Acetone oils
Class 3 / Flammable / ERG 127
PPE: Level B minimum with SCBA required in confined spaces or high vapor concentrations; chemical-resistant gloves and splash protection for liquid contact
ISOLATION: ERG 127: Initial isolation 50m in all directions; protective action distance 0.3 km for large spills; evacuate downwind areas due to heavy vapors
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 1091 — Acetone oils
Class: 3 | Placard: Flammable | ERG Guide: 127
Appearance: Clear to yellowish-brown liquid with a characteristic acetone-like or solvent odor. Liquid at room temperature with varying composition depending on manufacturing process.
Water Reactivity: No significant reaction with water, but may form separate layers
Extinguishing: Alcohol-resistant foam (AFFF-AR), dry chemical, CO2; regular foam may be ineffective
PPE: Level B minimum with SCBA required in confined spaces or high vapor concentrations; chemical-resistant gloves and splash protection for liquid contact
Isolation: ERG 127: Initial isolation 50m in all directions; protective action distance 0.3 km for large spills; evacuate downwind areas due to heavy vapors
— Key Hazards —
• HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
• Vapors may form explosive mixtures with air.
• Vapors may travel to source of ignition and flash back.
— 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/1091 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN1091 Acetone oils Cls3 ERG127 | ERG 127: Initial isolation 50m in all directions; protective action distance 0.3 | allfirefighter.com/hazmat/un/1091SMS / 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/1091
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FAQ
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along the ground and collect in low or confined areas Vapor explosion hazard indoors, outdoors or in sewers. Those substances designated with a (P) may polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated.
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 B minimum with SCBA required in confined spaces or high vapor concentrations; chemical-resistant gloves and splash protection for liquid contact
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 127 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.