☣️ UN 3150 • CLASS 2
Hydrocarbon gas refills for small devices, with release device
Placard: Flammable Gas. 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 3150
Class: 2
Placard type: Flammable Gas
ERG: Guide 115 (check current ERG)
Isolation: ERG 115: isolate 100m all directions; if fire or large leak, isolate 800m all directions and consider evacuation
Chemical & Response Details
| Also known as | Butane refill cartridgesLighter gas refillsPortable gas cylinder refillsSmall device fuel cartridgesCamping stove gas refills |
| Appearance | Colorless liquefied gas with a faint petroleum-like or gasless odor. Stored under pressure in small metal cartridges or cylinders with release valve mechanisms. |
| Flash Point | -60C (-76F) typical for butane mixtures |
| Boiling Point | -1C to 0C (30F to 32F) for butane component |
| Vapor Density | 2.0 (heavier than air, will accumulate in low areas) |
| Water Reactivity | No reaction with water, but gas will not dissolve and may displace oxygen |
| Extinguishing | Dry chemical, CO2, water spray for cooling containers only; foam not typically required for gas fires |
| PPE | ⚠️ Level B minimum; SCBA required in confined spaces or leak scenarios; anti-static protective clothing recommended due to ignition hazard |
| Isolation | ERG 115: isolate 100m all directions; if fire or large leak, isolate 800m all directions and consider evacuation |
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).
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UN 3150 — Hydrocarbon gas refills for small device HAZMAT RADIO NOTE — UN 3150
Product: Hydrocarbon gas refills for small devices, with release device
Class 2 / Flammable Gas / ERG 115
PPE: Level B minimum; SCBA required in confined spaces or leak scenarios; anti-static protective clothing recommended due to ignition hazard
ISOLATION: ERG 115: isolate 100m all directions; if fire or large leak, isolate 800m all directions and consider evacuation
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 3150 — Hydrocarbon gas refills for small devices, with release device
Class: 2 | Placard: Flammable Gas | ERG Guide: 115
Appearance: Colorless liquefied gas with a faint petroleum-like or gasless odor. Stored under pressure in small metal cartridges or cylinders with release valve mechanisms.
Water Reactivity: No reaction with water, but gas will not dissolve and may displace oxygen
Extinguishing: Dry chemical, CO2, water spray for cooling containers only; foam not typically required for gas fires
PPE: Level B minimum; SCBA required in confined spaces or leak scenarios; anti-static protective clothing recommended due to ignition hazard
Isolation: ERG 115: isolate 100m all directions; if fire or large leak, isolate 800m all directions and consider evacuation
— 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/3150 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN3150 Hydrocarbon gas refills for small devices, with release device Cls2 ERG115 | allfirefighter.com/hazmat/un/3150SMS / 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/3150
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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; SCBA required in confined spaces or leak scenarios; anti-static protective clothing recommended due to ignition hazard
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.