☣️ UN 1965 • CLASS 2
Hydrocarbon gas mixture, liquefied, n.o.s.
Placard: Flammable Gas. 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
Quick details
UN 1965
Class: 2
Placard type: Flammable Gas
ERG: Guide 115 (check current ERG)
Isolation: ERG 115: Initial isolation 100m in all directions; protective action distance 800m downwind for large spills; evacuate area if tank involved in fire
Chemical & Response Details
| Also known as | LPG (Liquefied Petroleum Gas)Liquefied hydrocarbon gas mixtureLiquefied petroleum product n.o.s.Hydrocarbon gas mixLPG mixture |
| Appearance | Colorless to pale yellow liquefied gas with a characteristic petroleum or mercaptan odor (odorant added). Heavier than air as a vapor; liquid is lighter than water and will float. |
| Flash Point | Not applicable (liquefied flammable gas) |
| Boiling Point | Variable depending on composition, typically -42C to -0.5C (-44F to 31F) |
| Vapor Density | 1.5-2.0 (heavier than air) |
| Water Reactivity | No significant reaction with water; insoluble and will vaporize rapidly |
| Extinguishing | Dry chemical, CO2, or water spray for cooling containers; foam not typically effective on gas fires |
| PPE | ⚠️ Level B minimum with SCBA required; insulated gloves for liquid contact to prevent frostbite; flame-resistant clothing in fire situations |
| Isolation | ERG 115: Initial isolation 100m in all directions; protective action distance 800m downwind for large spills; evacuate area if tank involved in fire |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- EXTREMELY FLAMMABLE.
- Will be easily ignited by heat, sparks or flames.
- Will form explosive mixtures with air.
- Vapors from liquefied gas are initially heavier than air and spread along ground.
- Vapors may travel to source of ignition and flash back.
- Cylinders exposed to fire may vent and release flammable gas through pressure relief devices.
- Containers may explode when heated.
- Ruptured cylinders may rocket.
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.
- Many gases are heavier than air and will spread along the ground and collect in low or confined areas
- Isolate spill or leak area for at least 100 meters (330 feet) in all directions.
- Consider initial downwind evacuation for at least 800 meters (1/2 mile).
Advertisement
📋 Copy & Share
UN 1965 — Hydrocarbon gas mixture, liquefied, n.o. HAZMAT RADIO NOTE — UN 1965
Product: Hydrocarbon gas mixture, liquefied, n.o.s.
Class 2 / Flammable Gas / ERG 115
PPE: Level B minimum with SCBA required; insulated gloves for liquid contact to prevent frostbite; flame-resistant clothing in fire situations
ISOLATION: ERG 115: Initial isolation 100m in all directions; protective action distance 800m downwind for large spills; evacuate area if tank involved in fire
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 1965 — Hydrocarbon gas mixture, liquefied, n.o.s.
Class: 2 | Placard: Flammable Gas | ERG Guide: 115
Appearance: Colorless to pale yellow liquefied gas with a characteristic petroleum or mercaptan odor (odorant added). Heavier than air as a vapor; liquid is lighter than water and will float.
Water Reactivity: No significant reaction with water; insoluble and will vaporize rapidly
Extinguishing: Dry chemical, CO2, or water spray for cooling containers; foam not typically effective on gas fires
PPE: Level B minimum with SCBA required; insulated gloves for liquid contact to prevent frostbite; flame-resistant clothing in fire situations
Isolation: ERG 115: Initial isolation 100m in all directions; protective action distance 800m downwind for large spills; evacuate area if tank involved in fire
— Key Hazards —
• EXTREMELY FLAMMABLE.
• Will be easily ignited by heat, sparks or flames.
• Will form explosive mixtures with air.
— 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.
• Many gases are heavier than air and will spread along the ground and collect in low or confined areas
SOURCE: allfirefighter.com/hazmat/un/1965 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN1965 Hydrocarbon gas mixture, liquefied, n.o.s. Cls2 ERG115 | allfirefighter.com/hazmat/un/1965SMS / 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/1965
Advertisement
FAQ
EXTREMELY FLAMMABLE. Will be easily ignited by heat, sparks or flames. Will form explosive mixtures with air. Vapors from liquefied gas are initially heavier than air and spread along ground. Vapors may travel to source of ignition and flash back. Cylinders exposed to fire may vent and release flammable gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket.
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; insulated gloves for liquid contact to prevent frostbite; flame-resistant clothing in fire situations
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 115 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.