☣️ UN 1327 • CLASS 4
UN 1327 — Bhusa, wet, damp or contaminated with oil
Placard: Spontaneously Combustible. ERG Guide 133. 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 1327 Quick Details
UN 1327
Product name: Bhusa, wet, damp or contaminated with oil
DOT Class: 4
Placard type: Spontaneously Combustible
ERG Guide: 133 (check current ERG)
Initial isolation: ERG 133: isolate spill/leak 25m all directions; if fire isolate 800m and consider evacuation 800m downwind
Common Hazards of UN 1327
- May self-heat and spontaneously ignite when damp, oily, or confined.
- Combustion may be vigorous and difficult to extinguish once started.
- Decomposition may produce toxic fumes of carbon monoxide and dioxide.
- Runoff from fire control may cause contamination of surface waters.
Chemical Identity & Physical Properties
| Also known as | Bran hayStraw dustAgricultural wasteCereal straw residueWet hay dust |
| Appearance | Light tan to brown fibrous organic material with a hay-like or musty odor. Appears as damp, oily agricultural waste or cereal residue. |
| Flash Point | Not applicable (self-heating solid) |
| Boiling Point | Not applicable (organic solid material) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Water may increase self-heating if material is already warm; use carefully |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 1327
Extinguishing Media
Dry chemical, sand, or dirt preferred; water spray for cooling only
PPE Requirements
⚠️ Level C minimum with dust mask; upgrade to SCBA if smoke present due to carbon monoxide hazard
Isolation & Evacuation
ERG 133: isolate spill/leak 25m all directions; if fire isolate 800m and consider evacuation 800m downwind
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 133).
First Actions for a UN 1327 Incident
- Isolate and restrict access to the area.
- Avoid water on burning material unless for exposure cooling.
- Do not attempt to smother burning piles; allow controlled burn if safe.
- Use dry chemical, CO₂, or sand for small fires.
- Wear protective clothing and positive-pressure SCBA.
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📋 Copy & Share Field Card
UN 1327 — Bhusa, wet, damp or contaminated with oiHAZMAT RADIO NOTE — UN 1327
Product: Bhusa, wet, damp or contaminated with oil
Class 4 / Spontaneously Combustible / ERG 133
PPE: Level C minimum with dust mask; upgrade to SCBA if smoke present due to carbon monoxide hazard
ISOLATION: ERG 133: isolate spill/leak 25m all directions; if fire isolate 800m and consider evacuation 800m downwind
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 1327 — Bhusa, wet, damp or contaminated with oil
Class: 4 | Placard: Spontaneously Combustible | ERG Guide: 133
Appearance: Light tan to brown fibrous organic material with a hay-like or musty odor. Appears as damp, oily agricultural waste or cereal residue.
Water Reactivity: Water may increase self-heating if material is already warm; use carefully
Extinguishing: Dry chemical, sand, or dirt preferred; water spray for cooling only
PPE: Level C minimum with dust mask; upgrade to SCBA if smoke present due to carbon monoxide hazard
Isolation: ERG 133: isolate spill/leak 25m all directions; if fire isolate 800m and consider evacuation 800m downwind
— Key Hazards —
• May self-heat and spontaneously ignite when damp, oily, or confined.
• Combustion may be vigorous and difficult to extinguish once started.
• Decomposition may produce toxic fumes of carbon monoxide and dioxide.
— First Actions —
• Isolate and restrict access to the area.
• Avoid water on burning material unless for exposure cooling.
• Do not attempt to smother burning piles; allow controlled burn if safe.
• Use dry chemical, CO₂, or sand for small fires.
SOURCE: allfirefighter.com/hazmat/un/1327 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN1327 Bhusa, wet, damp or contaminated with oil Cls4 ERG133 | allfirefighter.com/hazmat/un/1327SMS / 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/1327
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Frequently Asked Questions about UN 1327
May self-heat and spontaneously ignite when damp, oily, or confined. Combustion may be vigorous and difficult to extinguish once started. Decomposition may produce toxic fumes of carbon monoxide and dioxide. Runoff from fire control may cause contamination of surface waters.
Isolate and restrict access to the area. Avoid water on burning material unless for exposure cooling. Do not attempt to smother burning piles; allow controlled burn if safe.
Level C minimum with dust mask; upgrade to SCBA if smoke present due to carbon monoxide hazard
Water reactivity: Water may increase self-heating if material is already warm; use carefully. Recommended extinguishing: Dry chemical, sand, or dirt preferred; water spray for cooling only.
ERG Guide 133 recommendation: ERG 133: isolate spill/leak 25m all directions; if fire isolate 800m and consider evacuation 800m downwind
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 133 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.