☣️ UN 2800 • CLASS 8
Batteries, wet, non-spillable
Placard: Corrosive. 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 2800
Class: 8
Placard type: Corrosive
ERG: Guide 154 (check current ERG)
Isolation: ERG 154: isolate spill or leak area at least 25 meters in all directions; if fire involves large quantities, consider 800m evacuation radius
Chemical & Response Details
| Appearance | Sealed battery units containing absorbed or gelled electrolyte (typically sulfuric acid). Gray or black plastic cases. Electrolyte is immobilized and will not freely spill under normal conditions. |
| Flash Point | Not applicable (non-flammable device) |
| Boiling Point | Not applicable (sealed device) |
| Vapor Density | Not applicable (sealed device) |
| Water Reactivity | No significant reaction when intact; damaged batteries may release corrosive electrolyte |
| Extinguishing | Water spray, dry chemical, CO2 suitable for battery fires |
| PPE | ⚠️ Chemical-resistant gloves and eye protection when handling damaged units; SCBA if fire involves batteries with smoke |
| Isolation | ERG 154: isolate spill or leak area at least 25 meters in all directions; if fire involves large quantities, consider 800m evacuation radius |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury
- Contact with molten substance may cause severe burns to skin and eyes.
- Avoid any skin contact.
- Fire may produce irritating, corrosive and/or toxic gases.
- Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental
- Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive
- Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.).
- Corrosives in contact with metals may evolve flammable hydrogen gas.
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 in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters
- 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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UN 2800 — Batteries, wet, non-spillable HAZMAT RADIO NOTE — UN 2800
Product: Batteries, wet, non-spillable
Class 8 / Corrosive / ERG 154
PPE: Chemical-resistant gloves and eye protection when handling damaged units; SCBA if fire involves batteries with smoke
ISOLATION: ERG 154: isolate spill or leak area at least 25 meters in all directions; if fire involves large quantities, consider 800m evacuation radius
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 2800 — Batteries, wet, non-spillable
Class: 8 | Placard: Corrosive | ERG Guide: 154
Appearance: Sealed battery units containing absorbed or gelled electrolyte (typically sulfuric acid). Gray or black plastic cases. Electrolyte is immobilized and will not freely spill under normal conditions.
Water Reactivity: No significant reaction when intact; damaged batteries may release corrosive electrolyte
Extinguishing: Water spray, dry chemical, CO2 suitable for battery fires
PPE: Chemical-resistant gloves and eye protection when handling damaged units; SCBA if fire involves batteries with smoke
Isolation: ERG 154: isolate spill or leak area at least 25 meters in all directions; if fire involves large quantities, consider 800m evacuation radius
— Key Hazards —
• TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury
• Contact with molten substance may cause severe burns to skin and eyes.
• Avoid any skin contact.
— 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/2800 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN2800 Batteries, wet, non-spillable Cls8 ERG154 | allfirefighter.com/hazmat/un/2800SMS / 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/2800
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FAQ
TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Corrosives in contact with metals may evolve flammable hydrogen gas.
CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper Keep unauthorized personnel away. Stay upwind, uphill and/or upstream.
Chemical-resistant gloves and eye protection when handling damaged units; SCBA if fire involves batteries with smoke
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 154 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.