☣️ UN 3352 • CLASS 6
UN 3352 — Pyrethroid pesticide, liquid, poisonous
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 3352 Quick Details
UN 3352
Product name: Pyrethroid pesticide, liquid, poisonous
DOT Class: 6
Placard type: Toxic
ERG Guide: 151 (check current ERG)
Initial isolation: ERG 151: isolate spill 25-50m all directions; if tank/cargo involved in fire, isolate 800m all directions
Common Hazards of UN 3352
- 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 | Pyrethroid insecticide solutionSynthetic pyrethrin pesticide liquidPyrethroid formulation |
| Appearance | Clear to amber-colored liquid with mild to no odor, depending on formulation. Oily consistency, immiscible with water. |
| Flash Point | Varies by formulation, typically 38-93C (100-200F) depending on solvent carrier |
| Boiling Point | Varies by formulation, typically 150-250C (302-482F) depending on solvent |
| Vapor Density | Heavier than air, typically 5-8 (air=1) |
| Water Reactivity | No significant reaction with water, but insoluble and forms surface film |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 3352
Extinguishing Media
Alcohol-resistant foam, dry chemical, CO2; avoid water streams that spread contamination
PPE Requirements
⚠️ Level A or B minimum; SCBA required; full chemical-resistant suit; avoid all skin contact; double-glove recommended
Isolation & Evacuation
ERG 151: isolate spill 25-50m all directions; if tank/cargo involved in fire, isolate 800m all directions
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 151).
First Actions for a UN 3352 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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📋 Copy & Share Field Card
UN 3352 — Pyrethroid pesticide, liquid, poisonousHAZMAT RADIO NOTE — UN 3352
Product: Pyrethroid pesticide, liquid, poisonous
Class 6 / Toxic / ERG 151
PPE: Level A or B minimum; SCBA required; full chemical-resistant suit; avoid all skin contact; double-glove recommended
ISOLATION: ERG 151: isolate spill 25-50m all directions; if tank/cargo involved in fire, isolate 800m 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 3352 — Pyrethroid pesticide, liquid, poisonous
Class: 6 | Placard: Toxic | ERG Guide: 151
Appearance: Clear to amber-colored liquid with mild to no odor, depending on formulation. Oily consistency, immiscible with water.
Water Reactivity: No significant reaction with water, but insoluble and forms surface film
Extinguishing: Alcohol-resistant foam, dry chemical, CO2; avoid water streams that spread contamination
PPE: Level A or B minimum; SCBA required; full chemical-resistant suit; avoid all skin contact; double-glove recommended
Isolation: ERG 151: isolate spill 25-50m all directions; if tank/cargo involved in fire, isolate 800m all directions
— 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/3352 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN3352 Pyrethroid pesticide, liquid, poisonous Cls6 ERG151 | allfirefighter.com/hazmat/un/3352SMS / 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/3352
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Frequently Asked Questions about UN 3352
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 minimum; SCBA required; full chemical-resistant suit; avoid all skin contact; double-glove recommended
Water reactivity: No significant reaction with water, but insoluble and forms surface film. Recommended extinguishing: Alcohol-resistant foam, dry chemical, CO2; avoid water streams that spread contamination.
ERG Guide 151 recommendation: ERG 151: isolate spill 25-50m all directions; if tank/cargo involved in fire, isolate 800m all directions
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.