☣️ UN 1373 • CLASS 4
UN 1373 — Fabrics, animal or vegetable or synthetic, n.o.s. 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 1373 Quick Details
UN 1373
Product name: Fabrics, animal or vegetable or synthetic, n.o.s. with oil
DOT Class: 4
Placard type: Spontaneously Combustible
ERG Guide: 133 (check current ERG)
Initial isolation: ERG 133: isolate spill or leak area immediately for at least 50m in all directions; if tank/rail car involved in fire, isolate 800m in all directions and consider initial evacuation for 800m
Common Hazards of UN 1373
- 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
| Also known as | oil-soaked fabricsoily ragsfabric waste with oiloil-contaminated textilesgreasy fabric materials |
| Appearance | Variable appearance depending on fabric type; typically cloth, rags, or textile materials saturated or contaminated with oil or grease. May appear dark, stained, or visibly oily. Strong petroleum or oil odor often present. |
| Flash Point | Variable depending on oil type and concentration; typically <60C (<140F) for petroleum-based oils |
| Boiling Point | Not applicable (solid fabric material) |
| Vapor Density | Not applicable (solid fabric material) |
| Water Reactivity | No significant reaction with water; however, water may spread oil contamination |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 1373
Extinguishing Media
Water spray, dry chemical, CO2, foam suitable for oil fires; caution with water as it may spread burning oil
PPE Requirements
⚠️ Structural firefighter protective clothing provides limited protection; SCBA required in fire conditions; avoid inhalation of smoke and decomposition products
Isolation & Evacuation
ERG 133: isolate spill or leak area immediately for at least 50m in all directions; if tank/rail car involved in fire, isolate 800m in all directions and consider initial evacuation for 800m
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 133).
First Actions for a UN 1373 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 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 1373 — Fabrics, animal or vegetable or synthetiHAZMAT RADIO NOTE — UN 1373
Product: Fabrics, animal or vegetable or synthetic, n.o.s. with oil
Class 4 / Spontaneously Combustible / ERG 133
PPE: Structural firefighter protective clothing provides limited protection; SCBA required in fire conditions; avoid inhalation of smoke and decomposition products
ISOLATION: ERG 133: isolate spill or leak area immediately for at least 50m in all directions; if tank/rail car involved in fire, isolate 800m in all directions and consider initial evacuation for 800m
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 1373 — Fabrics, animal or vegetable or synthetic, n.o.s. with oil
Class: 4 | Placard: Spontaneously Combustible | ERG Guide: 133
Appearance: Variable appearance depending on fabric type; typically cloth, rags, or textile materials saturated or contaminated with oil or grease. May appear dark, stained, or visibly oily. Strong petroleum or oil odor often present.
Water Reactivity: No significant reaction with water; however, water may spread oil contamination
Extinguishing: Water spray, dry chemical, CO2, foam suitable for oil fires; caution with water as it may spread burning oil
PPE: Structural firefighter protective clothing provides limited protection; SCBA required in fire conditions; avoid inhalation of smoke and decomposition products
Isolation: ERG 133: isolate spill or leak area immediately for at least 50m in all directions; if tank/rail car involved in fire, isolate 800m in all directions and consider initial evacuation for 800m
— 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 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 for at least 25 meters (75 feet) in all directions.
SOURCE: allfirefighter.com/hazmat/un/1373 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN1373 Fabrics, animal or vegetable or synthetic, n.o.s. with oil Cls4 ERG133 | allfirefighter.com/hazmat/un/1373SMS / 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/1373
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Frequently Asked Questions about UN 1373
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.
CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper Keep unauthorized personnel away. Stay upwind, uphill and/or upstream.
Structural firefighter protective clothing provides limited protection; SCBA required in fire conditions; avoid inhalation of smoke and decomposition products
Water reactivity: No significant reaction with water; however, water may spread oil contamination. Recommended extinguishing: Water spray, dry chemical, CO2, foam suitable for oil fires; caution with water as it may spread burning oil.
ERG Guide 133 recommendation: ERG 133: isolate spill or leak area immediately for at least 50m in all directions; if tank/rail car involved in fire, isolate 800m in all directions and consider initial evacuation for 800m
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.