☣️ UN 3082 • CLASS 9
Environmentally hazardous substance, liquid, n.o.s.
Placard: Miscellaneous. 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 3082
Class: 9
Placard type: Miscellaneous
ERG: Guide 171 (check current ERG)
Isolation: ERG 171: No evacuation distances specified for small spills; isolate immediate area and prevent environmental release; for large spills isolate 25m in all directions
Chemical & Response Details
| Also known as | Environmentally hazardous substance liquid NOSMarine pollutant liquidAquatic pollutant liquidHazardous to the environment liquid |
| Appearance | Physical properties vary widely as this is a generic classification for liquid substances harmful to aquatic environments. Typically colorless to colored liquids at room temperature with varying odors depending on the specific substance. |
| Flash Point | Varies by specific substance; generally not readily ignitable |
| Boiling Point | Varies by specific substance |
| Vapor Density | Varies by specific substance |
| Water Reactivity | Generally no significant reaction with water, though environmental contamination is a concern |
| Extinguishing | Foam, dry chemical, CO2, or water spray typically suitable; avoid release to environment |
| PPE | ⚠️ Level D minimum for routine handling; upgrade to Level C or B if substance identity unknown or airborne exposure risk exists; chemical-resistant gloves and eye protection required |
| Isolation | ERG 171: No evacuation distances specified for small spills; isolate immediate area and prevent environmental release; for large spills isolate 25m in all directions |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- Some may burn but none ignite readily.
- Containers may explode when heated.
- Some may be transported hot.
- For UN3508, Capacitor, asymmetric, be aware of possible short circuiting as this product is transported
- Polymeric beads, expandable (UN2211) may evolve flammable vapours.
- Inhalation of material may be harmful.
- Contact may cause burns to skin and eyes.
- Inhalation of Asbestos dust may have a damaging effect on the lungs.
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.
- 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 3082 — Environmentally hazardous substance, liq HAZMAT RADIO NOTE — UN 3082
Product: Environmentally hazardous substance, liquid, n.o.s.
Class 9 / Miscellaneous / ERG 171
PPE: Level D minimum for routine handling; upgrade to Level C or B if substance identity unknown or airborne exposure risk exists; chemical-resistant gloves and eye protection required
ISOLATION: ERG 171: No evacuation distances specified for small spills; isolate immediate area and prevent environmental release; for large spills isolate 25m in all directions
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 3082 — Environmentally hazardous substance, liquid, n.o.s.
Class: 9 | Placard: Miscellaneous | ERG Guide: 171
Appearance: Physical properties vary widely as this is a generic classification for liquid substances harmful to aquatic environments. Typically colorless to colored liquids at room temperature with varying odors depending on the specific substance.
Water Reactivity: Generally no significant reaction with water, though environmental contamination is a concern
Extinguishing: Foam, dry chemical, CO2, or water spray typically suitable; avoid release to environment
PPE: Level D minimum for routine handling; upgrade to Level C or B if substance identity unknown or airborne exposure risk exists; chemical-resistant gloves and eye protection required
Isolation: ERG 171: No evacuation distances specified for small spills; isolate immediate area and prevent environmental release; for large spills isolate 25m in all directions
— Key Hazards —
• Some may burn but none ignite readily.
• Containers may explode when heated.
• Some may be transported hot.
— 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.
• Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters
SOURCE: allfirefighter.com/hazmat/un/3082 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN3082 Environmentally hazardous substance, liquid, n.o.s. Cls9 ERG171 | allfirefighter.com/hazmat/un/3082SMS / 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/3082
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FAQ
Some may burn but none ignite readily. Containers may explode when heated. Some may be transported hot. For UN3508, Capacitor, asymmetric, be aware of possible short circuiting as this product is transported Polymeric beads, expandable (UN2211) may evolve flammable vapours. Inhalation of material may be harmful. Contact may cause burns to skin and eyes. Inhalation of Asbestos dust may have a damaging effect on the lungs.
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 minimum for routine handling; upgrade to Level C or B if substance identity unknown or airborne exposure risk exists; chemical-resistant gloves and eye protection required
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 171 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.