☣️ UN 1013 • CLASS 2
Carbon dioxide, compressed
Placard: Non-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 1013
Class: 2
Placard type: Non-Flammable Gas
ERG: Guide 120 (check current ERG)
Isolation: ERG 120: No evacuation distances listed for non-fire scenarios; ensure adequate ventilation; treat as simple asphyxiant in confined spaces
Chemical & Response Details
| Also known as | CO2carbonic acid gascarbonic anhydridedry ice (solid form) |
| CAS Number | 124-38-9 |
| Appearance | Colorless, odorless gas at room temperature. Shipped as a liquefied compressed gas. Heavier than air. Solid form (dry ice) sublimes directly to gas. |
| Flash Point | Not applicable (non-flammable gas) |
| Boiling Point | -78.5C (-109.3F) at atmospheric pressure (sublimes) |
| Vapor Density | 1.5 (heavier than air) |
| Water Reactivity | No significant reaction with water; dissolves slightly to form weak carbonic acid |
| Extinguishing | Not applicable (non-flammable; use ventilation to disperse gas) |
| PPE | ⚠️ Level D for routine handling; SCBA required in confined spaces or high concentration areas due to asphyxiation risk; insulated gloves for liquefied or solid CO2 to prevent frostbite |
| Isolation | ERG 120: No evacuation distances listed for non-fire scenarios; ensure adequate ventilation; treat as simple asphyxiant in confined spaces |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- Vapors may cause dizziness or asphyxiation without warning, especially when in closed or confined areas.
- Vapors from liquefied gas are initially heavier than air and spread along ground.
- Contact with gas, liquefied gas or cryogenic liquids may cause burns, severe injury and/or frostbite.
- Non-flammable gases.
- 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
- 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.
- Consider initial downwind evacuation for at least 100 meters (330 feet).
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UN 1013 — Carbon dioxide, compressed HAZMAT RADIO NOTE — UN 1013
Product: Carbon dioxide, compressed
Class 2 / Non-Flammable Gas / ERG 120
PPE: Level D for routine handling; SCBA required in confined spaces or high concentration areas due to asphyxiation risk; insulated gloves for liquefied or solid CO2 to prevent frostbite
ISOLATION: ERG 120: No evacuation distances listed for non-fire scenarios; ensure adequate ventilation; treat as simple asphyxiant in confined spaces
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 1013 — Carbon dioxide, compressed
Class: 2 | Placard: Non-Flammable Gas | ERG Guide: 120
Appearance: Colorless, odorless gas at room temperature. Shipped as a liquefied compressed gas. Heavier than air. Solid form (dry ice) sublimes directly to gas.
Water Reactivity: No significant reaction with water; dissolves slightly to form weak carbonic acid
Extinguishing: Not applicable (non-flammable; use ventilation to disperse gas)
PPE: Level D for routine handling; SCBA required in confined spaces or high concentration areas due to asphyxiation risk; insulated gloves for liquefied or solid CO2 to prevent frostbite
Isolation: ERG 120: No evacuation distances listed for non-fire scenarios; ensure adequate ventilation; treat as simple asphyxiant in confined spaces
— Key Hazards —
• Vapors may cause dizziness or asphyxiation without warning, especially when in closed or confined areas.
• Vapors from liquefied gas are initially heavier than air and spread along ground.
• Contact with gas, liquefied gas or cryogenic liquids may cause burns, severe injury and/or frostbite.
— 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/1013 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN1013 Carbon dioxide, compressed Cls2 ERG120 | allfirefighter.com/hazmat/un/1013SMS / 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/1013
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FAQ
Vapors may cause dizziness or asphyxiation without warning, especially when in closed or confined areas. Vapors from liquefied gas are initially heavier than air and spread along ground. Contact with gas, liquefied gas or cryogenic liquids may cause burns, severe injury and/or frostbite. Non-flammable gases. 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 D for routine handling; SCBA required in confined spaces or high concentration areas due to asphyxiation risk; insulated gloves for liquefied or solid CO2 to prevent frostbite
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 120 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.