UN 2037 — Receptacles, small, containing gas
Placard: Non-Flammable Gas. ERG Guide 115. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 2037 is Receptacles, small, containing gas, a small pressurized gas receptacle entry assigned to ERG Guide 115. Contents vary, so pressure rupture and product-specific gas hazards must both be considered.
Hazard overview: PRESSURIZED small gas receptacles; contents may be flammable, toxic, non-flammable or mixed. Containers may rupture, burst or rocket when heated. Flammable contents may form vapor clouds and flash back from ignition sources.
Response guidance: For a UN 2037 incident, verify the product with shipping papers, container markings, SDS and ERG Guide 115. Establish incident command, isolate the area, stay upwind, control ignition or incompatibility hazards, prevent runoff or vapor spread and base entry/fire-control actions on monitoring and local SOP.
Firefighter training notes: Training for UN 2037 should emphasize pressure/fire hazards, exposure routes, air monitoring, PPE selection, evacuation, decontamination and ERG/SDS verification. Use ERG 115, SDS and local SOP.
Regulatory context: Receptacles, small, containing gas is regulated as a hazardous material for transportation and emergency response purposes. Storage, workplace exposure, emergency planning, spill reporting, waste handling and environmental requirements vary by exact product, concentration, quantity and jurisdiction. Verify current requirements through shipping papers, SDS, container markings and applicable DOT, OSHA, EPA, NFPA, state or local authority guidance.
Storage & handling: Receptacles, small, containing gas containers should be secured in a cool, ventilated gas storage area away from heat, flames where applicable, physical damage and incompatible materials. Follow SDS and local code for pressure, ventilation and segregation.
UN 2037 Quick Details
Common Hazards of UN 2037
- PRESSURIZED small gas receptacles; contents may be flammable, toxic, non-flammable or mixed.
- Containers may rupture, burst or rocket when heated.
- Flammable contents may form vapor clouds and flash back from ignition sources.
- Gas may collect in low or confined areas and displace oxygen.
- Contact with liquefied gas may cause frostbite or cold burns.
- Fire may produce irritating, corrosive or toxic gases depending on contents.
- Exact hazards depend on the gas or aerosol product marking and SDS.
Chemical Identity & Physical Properties
Small metal or composite containers holding compressed or liquefied gases under pressure. May be aerosol cans, camping fuel cartridges, or other small pressurized vessels. Contents vary widely.
| Also known as | Gas cartridgesAerosol dispensersSmall gas cylindersPressurized gas containersDisposable gas canisters |
| Appearance | Small metal or composite containers holding compressed or liquefied gases under pressure. May be aerosol cans, camping fuel cartridges, or other small pressurized vessels. Contents vary widely. |
| Flash Point | Varies by contents - typically highly flammable gases with no flash point (gas phase) |
| Boiling Point | Varies by contents - typically below room temperature for liquefied gases |
| Vapor Density | Varies by contents - typically heavier than air for hydrocarbon gases |
| Water Reactivity | Generally no reaction with water, though contents may vary |
Fireground Response Guidance — UN 2037
Extinguishing Media
PPE Requirements
Use SCBA and oxygen monitoring in confined or oxygen-deficient areas. Wear eye/face protection and insulated gloves if liquefied or rapidly expanding gas contact is possible.
Isolation & Evacuation
First Actions for a UN 2037 Incident
- CALL 911. Then call the emergency response telephone number on the shipping paper, if available.
- Keep unauthorized personnel away.
- Stay upwind, uphill and/or upstream.
- Avoid breathing vapors, gas, dust, mist, smoke or fumes and avoid skin or eye contact.
- Avoid low or confined areas until oxygen levels and gas readings are checked.
- Do not touch damaged containers or spilled/released material unless properly trained and wearing appropriate protective equipment.
- Ventilate closed spaces before entering, but only if properly trained, equipped, monitored and authorized by incident command.
- Isolate the spill or release area and expand the perimeter for fire involvement, vapor spread, dust spread, cylinder heating or unknown product identity.
- Use ERG Guide 115, shipping papers, SDS, air monitoring and incident command for protective actions.
📋 Copy & Share Field Card
UN 2037 — Receptacles, small, containing gasUse for: Quick radio or face-to-face size-up. Short, structured, field-ready.
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
Use for: Quick text to command or incoming units. Fits in a single SMS.