☣️ UN 3360 • CLASS 4
UN 3360 — Fibers, vegetable, dry
Placard: Flammable Solid. ERG Guide 133. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
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⚠️ Verification required:
Broad or variable material category; verify exact product, SDS and shipping papers.
⚠️ 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.
Dry vegetable fibers include plant-based materials such as jute, sisal, hemp, flax or cotton-like fibers shipped dry.
Hazard overview: The material is combustible. Dust, loose fibers and tightly packed bales can ignite, smolder or rekindle after apparent extinguishment.
Response guidance: Remove ignition sources, separate exposed bales if safe and wet down burning or smoldering material. Watch for hidden fire inside compressed loads.
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UN 3360 Quick Details
UN 3360
Product name: Fibers, vegetable, dry
DOT Class: 4
Placard type: Flammable Solid
ERG Guide: 133 (check current ERG)
Initial isolation: ERG 133: Small spill isolate 30m all directions; large spill 100m; fire isolate 800m and consider evacuation for 800m in all directions if tank/railcar involved
Common Hazards of UN 3360
- Flammable/combustible material.
- May be ignited by friction, heat, sparks or flames.
- Some may burn rapidly with flare-burning effect.
- Powders, dusts, shavings, borings, turnings or cuttings may explode or burn with explosive violence.
- Substance may be transported in a molten form at a temperature that may be above its flash point.
- May re-ignite after fire is extinguished.
- Fire may produce irritating and/or toxic gases.
- Contact may cause burns to skin and eyes.
Chemical Identity & Physical Properties
Tan to brown fibrous material in various forms (bales, loose, compressed). Dry, combustible organic matter with no distinctive odor when not burning.
| Also known as | Dried plant fibersAgricultural fibersNatural fibersVegetable matter driedPlant-based fibersSisalJuteHemp fibersCotton lintersFlax fibers |
| Appearance | Tan to brown fibrous material in various forms (bales, loose, compressed). Dry, combustible organic matter with no distinctive odor when not burning. |
| Flash Point | Variable, typically ignites at 200-250°C (392-482°F) depending on fiber type and moisture content |
| Boiling Point | Not applicable (solid material that decomposes/burns rather than boils) |
| Vapor Density | Not applicable (solid material with no significant vapor pressure) |
| Water Reactivity | No significant reaction; water may be used to wet down and prevent ignition or suppress fire |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 3360
Extinguishing Media
Water fog, water spray, foam, dry chemical, CO2; foam may be used for fire suppression
PPE Requirements
⚠️ Structural firefighters' protective clothing and SCBA for fire situations; dust mask for handling to prevent inhalation of particulates
Use structural firefighting PPE and SCBA during fire; use respiratory protection for dusty handling conditions.
Isolation & Evacuation
ERG 133: Small spill isolate 30m all directions; large spill 100m; fire isolate 800m and consider evacuation for 800m in all directions if tank/railcar involved
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 133).
First Actions for a UN 3360 Incident
- CALL 911. Then call the emergency response telephone number on the shipping paper, if available.
- Keep unauthorized personnel away.
- Stay upwind, uphill and/or upstream.
- Isolate spill or leak area for at least 25 meters (75 feet) in all directions.
- Consider initial downwind evacuation for at least 100 meters (330 feet).
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📋 Copy & Share Field Card
UN 3360 — Fibers, vegetable, dryHAZMAT RADIO NOTE — UN 3360
Product: Fibers, vegetable, dry
Class 4 / Flammable Solid / ERG 133
PPE: Structural firefighters' protective clothing and SCBA for fire situations; dust mask for handling to prevent inhalation of particulates
ISOLATION: ERG 133: Small spill isolate 30m all directions; large spill 100m; fire isolate 800m and consider evacuation for 800m in all directions if tank/railcar involved
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 3360 — Fibers, vegetable, dry
Class: 4 | Placard: Flammable Solid | ERG Guide: 133
Appearance: Tan to brown fibrous material in various forms (bales, loose, compressed). Dry, combustible organic matter with no distinctive odor when not burning.
Water Reactivity: No significant reaction; water may be used to wet down and prevent ignition or suppress fire
Extinguishing: Water fog, water spray, foam, dry chemical, CO2; foam may be used for fire suppression
PPE: Structural firefighters' protective clothing and SCBA for fire situations; dust mask for handling to prevent inhalation of particulates
Isolation: ERG 133: Small spill isolate 30m all directions; large spill 100m; fire isolate 800m and consider evacuation for 800m in all directions if tank/railcar involved
— Key Hazards —
• Flammable/combustible material.
• May be ignited by friction, heat, sparks or flames.
• Some may burn rapidly with flare-burning effect.
— First Actions —
• CALL 911. Then call the emergency response telephone number on the shipping paper, if available.
• Keep unauthorized personnel away.
• Stay upwind, uphill and/or upstream.
• Isolate spill or leak area for at least 25 meters (75 feet) in all directions.
SOURCE: allfirefighter.com/hazmat/un/fibers-vegetable-dry-un-3360 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
UN3360 Fibers, vegetable, dry Cls4 ERG133 | allfirefighter.com/hazmat/un/fibers-vegetable-dry-un-3360SMS / 160 CHAR
Use for: Quick text to command or incoming units. Fits in a single SMS.
⚠️ Quick-reference only. Always use current ERG + SOP/SOG for incident-specific actions.
Page: https://allfirefighter.com/hazmat/un/fibers-vegetable-dry-un-3360
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Frequently Asked Questions about UN 3360
UN 3360 is the entry for dry vegetable fibers.
Yes. Dry plant fibers are combustible and may ignite from heat, sparks or friction.
Yes. Water spray, fog or foam can be used for fire suppression and wetting down.
Compressed bales can smolder internally and reignite.
SCBA for fire conditions and dust protection for handling dry fibers.
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.