☣️ 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.
🚒☣️
⚠️ 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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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
| Also known as | Oil gasCompressed oil gasPetroleum gas mixtureRefinery gasLight hydrocarbon gas mixture |
| Appearance | Colorless to pale yellow compressed gas mixture with a characteristic petroleum or hydrocarbon odor. Heavier than air when released. |
| Flash Point | Not applicable (compressed flammable gas) |
| Boiling Point | Variable, typically -160C to -42C (-256F to -44F) depending on composition |
| Vapor Density | 1.5-2.0 (heavier than air) |
| Water Reactivity | No 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.
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
- 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
- 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, compressedHAZMAT 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.
=== 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 —
• 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/1071 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
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. Includes link to full page.
⚠️ Quick-reference only. Always use current ERG + SOP/SOG for incident-specific actions.
Page: https://allfirefighter.com/hazmat/un/1071
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Frequently Asked Questions about 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.
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. Full chemical resistant suit if contact with liquefied gas possible. Thermal protective clothing for fire exposure.
Water reactivity: No significant reaction with water. Recommended 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..
ERG Guide 119 recommendation: ERG 119: Initial isolation 100m in all directions. Protective action distance 800m downwind during day, 1.8km at night for large spills.
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 119 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.