☣️ UN 3086 • CLASS 6
UN 3086 — Poisonous solid, oxidizing, n.o.s.
Placard: Toxic. ERG Guide 141. 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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UN 3086 Quick Details
UN 3086
Product name: Poisonous solid, oxidizing, n.o.s.
DOT Class: 6
Placard type: Toxic
ERG Guide: 141 (check current ERG)
Initial isolation: ERG 141: Initial isolation 50m in all directions; protective action distance 0.1km (100m) downwind during day, 0.2km (200m) at night. If fire or spill is large, increase distances accordingly.
Common Hazards of UN 3086
- These substances will accelerate burning when involved in a fire.
- May explode from heat or contamination.
- Some may burn rapidly.
- Some will react explosively with hydrocarbons (fuels).
- May ignite combustibles (wood, paper, oil, clothing, etc.).
- Containers may explode when heated.
- Runoff may create fire or explosion hazard.
- Toxic by ingestion.
Chemical Identity & Physical Properties
| Also known as | Toxic solid, oxidizing, n.o.s.Poisonous oxidizing solid, not otherwise specifiedToxic oxidizer solid |
| Appearance | Appearance varies widely as this is a generic n.o.s. classification covering multiple substances. Typically solid material at room temperature that supports combustion and is toxic if ingested, inhaled, or absorbed. |
| Flash Point | Not applicable (oxidizing solid) |
| Boiling Point | Not applicable (decomposes or varies by specific substance) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Varies by specific substance; many oxidizers react with water or organic materials. Avoid water contact unless specific chemical is identified. |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 3086
Extinguishing Media
Dry chemical, dry sand; avoid foam or water unless chemical identity is confirmed. Use flooding quantities of water from distance if fire is severe.
PPE Requirements
⚠️ Level B minimum with full-face SCBA; Level A if substance is unidentified or vapor/dust exposure likely. Chemical-resistant suit required.
Isolation & Evacuation
ERG 141: Initial isolation 50m in all directions; protective action distance 0.1km (100m) downwind during day, 0.2km (200m) at night. If fire or spill is large, increase distances accordingly.
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 141).
First Actions for a UN 3086 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.
- 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
- Consider initial downwind evacuation for at least 100 meters (330 feet).
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UN 3086 — Poisonous solid, oxidizing, n.o.s.HAZMAT RADIO NOTE — UN 3086
Product: Poisonous solid, oxidizing, n.o.s.
Class 6 / Toxic / ERG 141
PPE: Level B minimum with full-face SCBA; Level A if substance is unidentified or vapor/dust exposure likely. Chemical-resistant suit required.
ISOLATION: ERG 141: Initial isolation 50m in all directions; protective action distance 0.1km (100m) downwind during day, 0.2km (200m) at night. If fire or spill is large, increase distances accordingly.
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 3086 — Poisonous solid, oxidizing, n.o.s.
Class: 6 | Placard: Toxic | ERG Guide: 141
Appearance: Appearance varies widely as this is a generic n.o.s. classification covering multiple substances. Typically solid material at room temperature that supports combustion and is toxic if ingested, inhaled, or absorbed.
Water Reactivity: Varies by specific substance; many oxidizers react with water or organic materials. Avoid water contact unless specific chemical is identified.
Extinguishing: Dry chemical, dry sand; avoid foam or water unless chemical identity is confirmed. Use flooding quantities of water from distance if fire is severe.
PPE: Level B minimum with full-face SCBA; Level A if substance is unidentified or vapor/dust exposure likely. Chemical-resistant suit required.
Isolation: ERG 141: Initial isolation 50m in all directions; protective action distance 0.1km (100m) downwind during day, 0.2km (200m) at night. If fire or spill is large, increase distances accordingly.
— Key Hazards —
• These substances will accelerate burning when involved in a fire.
• May explode from heat or contamination.
• Some may burn rapidly.
— 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/3086 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN3086 Poisonous solid, oxidizing, n.o.s. Cls6 ERG141 | allfirefighter.com/hazmat/un/3086SMS / 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/3086
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Frequently Asked Questions about UN 3086
These substances will accelerate burning when involved in a fire. May explode from heat or contamination. Some may burn rapidly. Some will react explosively with hydrocarbons (fuels). May ignite combustibles (wood, paper, oil, clothing, etc.). Containers may explode when heated. Runoff may create fire or explosion hazard. Toxic by ingestion.
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 full-face SCBA; Level A if substance is unidentified or vapor/dust exposure likely. Chemical-resistant suit required.
Water reactivity: Varies by specific substance; many oxidizers react with water or organic materials. Avoid water contact unless specific chemical is identified.. Recommended extinguishing: Dry chemical, dry sand; avoid foam or water unless chemical identity is confirmed. Use flooding quantities of water from distance if fire is severe..
ERG Guide 141 recommendation: ERG 141: Initial isolation 50m in all directions; protective action distance 0.1km (100m) downwind during day, 0.2km (200m) at night. If fire or spill is large, increase distances accordingly.
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 141 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.