☣️ UN 3558 • CLASS 9
Vehicle, sodium ion battery powered
Placard: Lithium Battery / Miscellaneous. 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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Quick details
UN 3558
Class: 9
Placard type: Lithium Battery / Miscellaneous
ERG: Guide 147 (check current ERG)
Isolation: ERG 147: isolate spill or leak area immediately for at least 25 meters in all directions; if fire involved, isolate 800 meters in all directions and consider evacuation
Chemical & Response Details
| Also known as | Sodium-ion battery vehicleNa-ion battery powered vehicleSodium battery electric vehicleVehicle containing sodium ion batteries |
| Appearance | Complete vehicle or vehicle components containing sodium-ion battery systems. The batteries consist of metallic cells and modules with liquid electrolyte, typically appearing as sealed metal casings in various configurations. |
| Flash Point | Not applicable (complete vehicle assembly with sealed battery cells) |
| Boiling Point | Not applicable (complete vehicle assembly) |
| Vapor Density | Not applicable (complete vehicle assembly) |
| Water Reactivity | Do not use water on burning batteries; electrolyte may react with water producing toxic vapors |
| Extinguishing | Dry chemical, CO2, sand, dry powder; large amounts of water may be needed for cooling surrounding batteries if fire occurs |
| PPE | ⚠️ Level B minimum for battery fire or damage; SCBA required due to toxic vapors from burning electrolyte; thermal protection for fire scenarios |
| Isolation | ERG 147: isolate spill or leak area immediately for at least 25 meters in all directions; if fire involved, isolate 800 meters in all directions and consider evacuation |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- Lithium ion and sodium ion batteries contain flammable liquid electrolyte that may vent, ignite and
- May burn rapidly with flare-burning effect.
- May ignite other batteries in close proximity.
- Contact with battery electrolyte may be irritating to skin, eyes and mucous membranes.
- Fire will produce irritating, corrosive and/or toxic gases.
- Burning batteries may produce toxic hydrogen fluoride gas (see GUIDE 125).
- Fumes may cause dizziness or asphyxiation.
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.
- Ventilate closed spaces before entering, but only if properly trained and equipped.
- Isolate spill or leak area for at least 25 meters (75 feet) in all directions.
- Increase the immediate precautionary measure distance, in the downwind direction, as necessary.
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UN 3558 — Vehicle, sodium ion battery powered HAZMAT RADIO NOTE — UN 3558
Product: Vehicle, sodium ion battery powered
Class 9 / Lithium Battery / Miscellaneous / ERG 147
PPE: Level B minimum for battery fire or damage; SCBA required due to toxic vapors from burning electrolyte; thermal protection for fire scenarios
ISOLATION: ERG 147: isolate spill or leak area immediately for at least 25 meters in all directions; if fire involved, isolate 800 meters in 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 3558 — Vehicle, sodium ion battery powered
Class: 9 | Placard: Lithium Battery / Miscellaneous | ERG Guide: 147
Appearance: Complete vehicle or vehicle components containing sodium-ion battery systems. The batteries consist of metallic cells and modules with liquid electrolyte, typically appearing as sealed metal casings in various configurations.
Water Reactivity: Do not use water on burning batteries; electrolyte may react with water producing toxic vapors
Extinguishing: Dry chemical, CO2, sand, dry powder; large amounts of water may be needed for cooling surrounding batteries if fire occurs
PPE: Level B minimum for battery fire or damage; SCBA required due to toxic vapors from burning electrolyte; thermal protection for fire scenarios
Isolation: ERG 147: isolate spill or leak area immediately for at least 25 meters in all directions; if fire involved, isolate 800 meters in all directions and consider evacuation
— Key Hazards —
• Lithium ion and sodium ion batteries contain flammable liquid electrolyte that may vent, ignite and
• May burn rapidly with flare-burning effect.
• May ignite other batteries in close proximity.
— 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.
• Ventilate closed spaces before entering, but only if properly trained and equipped.
SOURCE: allfirefighter.com/hazmat/un/3558 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN3558 Vehicle, sodium ion battery powered Cls9 ERG147 | allfirefighter.com/hazmat/un/3558SMS / 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/3558
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FAQ
Lithium ion and sodium ion batteries contain flammable liquid electrolyte that may vent, ignite and May burn rapidly with flare-burning effect. May ignite other batteries in close proximity. Contact with battery electrolyte may be irritating to skin, eyes and mucous membranes. Fire will produce irritating, corrosive and/or toxic gases. Burning batteries may produce toxic hydrogen fluoride gas (see GUIDE 125). Fumes may cause dizziness or asphyxiation.
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 for battery fire or damage; SCBA required due to toxic vapors from burning electrolyte; thermal protection for fire scenarios
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 147 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.