☣️ UN 1071 • CLASS 2

UN 1071 — Oil gas, compressed

Placard: Toxic Gas. ERG Guide 119. 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.

Oil gas is a toxic gas that can be fatal if inhaled or absorbed through the skin, and can cause severe burns and injuries. It is a colorless to pale yellow compressed gas mixture with a characteristic petroleum or hydrocarbon odor.

Hazard overview: Oil gas can cause severe skin burns and injuries, and contact with the gas or liquefied gas may cause burns, severe injury, and/or frostbite. It is essential to handle oil gas with caution and follow proper safety protocols.

Response guidance: In case of an oil gas spill or leak, isolate the area for at least 100m in all directions, and use dry chemical or CO2 to extinguish small fires. Do not use water or foam on gas leaks, and allow gas fires to burn out if flow cannot be stopped safely.

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UN 1071 Quick Details

UN 1071
Product name: Oil gas, compressed
DOT Class: 2
Placard type: Toxic Gas
ERG Guide: 119 (check current ERG)
Initial isolation: ERG 119: Initial isolation 100m in all directions. Protective action distance 800m downwind during day, 1.8km at night for large spills.

Common Hazards of UN 1071

  • TOXIC; may be fatal if inhaled or absorbed through skin. Some may cause severe skin burns and
  • Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite.
  • Fire will produce irritating, corrosive and/or toxic gases.
  • Runoff from fire control or dilution water may cause environmental contamination.
  • Flammable; may be ignited by heat, sparks or flames.
  • May form explosive mixtures with air. Ethylene oxide (UN1040) may react explosively even in the
  • Those substances designated with a (P) may polymerize explosively when heated or involved in a fire.
  • Vapors from liquefied gas are initially heavier than air and spread along ground.

Chemical Identity & Physical Properties

Oil gas is a colorless to pale yellow compressed gas mixture with a characteristic petroleum or hydrocarbon odor, and is heavier than air when released.

Also known asOil gasCompressed oil gasPetroleum gas mixtureRefinery gasLight hydrocarbon gas mixture
AppearanceColorless to pale yellow compressed gas mixture with a characteristic petroleum or hydrocarbon odor. Heavier than air when released.
Flash PointNot applicable (compressed flammable gas)
Boiling PointVariable, typically -160C to -42C (-256F to -44F) depending on composition
Vapor Density1.5-2.0 (heavier than air)
Water ReactivityNo significant reaction with water
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.

Fireground Response Guidance — UN 1071

Extinguishing Media

Do not use water or foam on gas leak. Dry chemical or CO2 for small fires. Allow gas fires to burn out if flow cannot be stopped safely.

PPE Requirements

⚠️ Level B minimum with SCBA required. Full chemical resistant suit if contact with liquefied gas possible. Thermal protective clothing for fire exposure.

A Level B minimum protective suit with SCBA is required for handling oil gas, and a full chemical-resistant suit is recommended if contact with liquefied gas is possible.

Isolation & Evacuation

ERG 119: Initial isolation 100m in all directions. Protective action distance 800m downwind during day, 1.8km at night for large spills.
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 119).

First Actions for a UN 1071 Incident

  • 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 100 meters (330 feet) in all directions.
  • 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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📋 Copy & Share Field Card

UN 1071 — Oil gas, compressed
HAZMAT RADIO NOTE — UN 1071 Product: Oil gas, compressed Class 2 / Toxic Gas / ERG 119 PPE: Level B minimum with SCBA required. Full chemical resistant suit if contact with liquefied gas possible. Thermal protective clothing for fire exposure. ISOLATION: ERG 119: Initial isolation 100m in all directions. Protective action distance 800m downwind during day, 1.8km at 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.

SMS WhatsApp
=== IC HAZMAT BRIEFING === UN 1071 — Oil gas, compressed Class: 2 | Placard: Toxic Gas | ERG Guide: 119 Appearance: Colorless to pale yellow compressed gas mixture with a characteristic petroleum or hydrocarbon odor. Heavier than air when released. Water Reactivity: No significant reaction with water Extinguishing: Do not use water or foam on gas leak. Dry chemical or CO2 for small fires. Allow gas fires to burn out if flow cannot be stopped safely. PPE: Level B minimum with SCBA required. Full chemical resistant suit if contact with liquefied gas possible. Thermal protective clothing for fire exposure. Isolation: ERG 119: Initial isolation 100m in all directions. Protective action distance 800m downwind during day, 1.8km at night for large spills. — Key Hazards — • TOXIC; may be fatal if inhaled or absorbed through skin. Some may cause severe skin burns and • Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. • Fire will produce irritating, corrosive and/or toxic gases. — First Actions — • 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 100 meters (330 feet) in all directions. SOURCE: allfirefighter.com/hazmat/un/1071 | Always use current ERG + SOP/SOGIC BRIEFING

Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.

SMS (short)
UN1071 Oil gas, compressed Cls2 ERG119 | ERG 119: Initial isolation 100m in all directions. Protective action distance 80 | allfirefighter.com/hazmat/un/1071SMS / 160 CHAR

Use for: Quick text to command or incoming units. Fits in a single SMS.

⚠️ Quick-reference only. Always use current ERG + SOP/SOG for incident-specific actions. Page: https://allfirefighter.com/hazmat/un/oil-gas-compressed-un-1071

Related UN Numbers in Class 2

Discovery block for training / quick reference. Always consult the current ERG + your SOP/SOG for operations.
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Frequently Asked Questions about UN 1071

Yes, UN 1071 is a flammable gas, and can ignite if not handled properly.

UN 1071 does not react significantly with water.

A Level B minimum protective suit with SCBA is required for handling UN 1071.
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.