☣️ UN 2902 • CLASS 6
UN 2902 — Pesticide, liquid, poisonous, n.o.s.
Placard: Toxic. ERG Guide 151. 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 2902 Quick Details
UN 2902
Product name: Pesticide, liquid, poisonous, n.o.s.
DOT Class: 6
Placard type: Toxic
ERG Guide: 151 (check current ERG)
Initial isolation: ERG 151: Initial isolation 50m in all directions; protective action distance 150m downwind daytime, 300m nighttime for small spills; larger spills may require 500m+ isolation
Common Hazards of UN 2902
- Highly toxic, may be fatal if inhaled, ingested or absorbed through skin.
- 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
- Containers may explode when heated.
- Runoff may pollute waterways.
Chemical Identity & Physical Properties
| Also known as | Pesticide liquid NOSToxic pesticide solutionPoisonous pest control liquidAgricultural chemical liquid |
| Appearance | Variable appearance depending on formulation; typically a liquid solution ranging from clear to colored, with odor varying by active ingredient and carrier solvent. Room temperature liquid state. |
| Flash Point | Variable, depends on formulation and solvent; many pesticide liquids range from 23C to 93C (73F to 200F) |
| Boiling Point | Variable, typically 100C to 300C (212F to 572F) depending on carrier solvent and active ingredients |
| Vapor Density | Typically heavier than air (>1), actual value depends on specific pesticide formulation |
| Water Reactivity | Generally no violent reaction with water, though some formulations may hydrolyze or release toxic vapors when diluted |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 2902
Extinguishing Media
Alcohol-resistant foam recommended; dry chemical, CO2 also effective; avoid high-pressure water streams that may spread contamination
PPE Requirements
⚠️ Level A or B required; full chemical-resistant suit, SCBA, double gloves; no skin contact permitted; decontamination procedures mandatory
Isolation & Evacuation
ERG 151: Initial isolation 50m in all directions; protective action distance 150m downwind daytime, 300m nighttime for small spills; larger spills may require 500m+ isolation
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 151).
First Actions for a UN 2902 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.
- 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 2902 — Pesticide, liquid, poisonous, n.o.s.HAZMAT RADIO NOTE — UN 2902
Product: Pesticide, liquid, poisonous, n.o.s.
Class 6 / Toxic / ERG 151
PPE: Level A or B required; full chemical-resistant suit, SCBA, double gloves; no skin contact permitted; decontamination procedures mandatory
ISOLATION: ERG 151: Initial isolation 50m in all directions; protective action distance 150m downwind daytime, 300m nighttime for small spills; larger spills may require 500m+ isolation
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 2902 — Pesticide, liquid, poisonous, n.o.s.
Class: 6 | Placard: Toxic | ERG Guide: 151
Appearance: Variable appearance depending on formulation; typically a liquid solution ranging from clear to colored, with odor varying by active ingredient and carrier solvent. Room temperature liquid state.
Water Reactivity: Generally no violent reaction with water, though some formulations may hydrolyze or release toxic vapors when diluted
Extinguishing: Alcohol-resistant foam recommended; dry chemical, CO2 also effective; avoid high-pressure water streams that may spread contamination
PPE: Level A or B required; full chemical-resistant suit, SCBA, double gloves; no skin contact permitted; decontamination procedures mandatory
Isolation: ERG 151: Initial isolation 50m in all directions; protective action distance 150m downwind daytime, 300m nighttime for small spills; larger spills may require 500m+ isolation
— Key Hazards —
• Highly toxic, may be fatal if inhaled, ingested or absorbed through skin.
• Avoid any skin contact.
• Fire may produce irritating, corrosive and/or toxic gases.
— 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/2902 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN2902 Pesticide, liquid, poisonous, n.o.s. Cls6 ERG151 | allfirefighter.com/hazmat/un/2902SMS / 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/2902
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Frequently Asked Questions about UN 2902
Highly toxic, may be fatal if inhaled, ingested or absorbed through skin. 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 Containers may explode when heated. Runoff may pollute waterways.
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 A or B required; full chemical-resistant suit, SCBA, double gloves; no skin contact permitted; decontamination procedures mandatory
Water reactivity: Generally no violent reaction with water, though some formulations may hydrolyze or release toxic vapors when diluted. Recommended extinguishing: Alcohol-resistant foam recommended; dry chemical, CO2 also effective; avoid high-pressure water streams that may spread contamination.
ERG Guide 151 recommendation: ERG 151: Initial isolation 50m in all directions; protective action distance 150m downwind daytime, 300m nighttime for small spills; larger spills may require 500m+ isolation
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 151 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.