UN 1345 — Rubber shoddy, powdered or granulated
Placard: Flammable Solid. ERG Guide 133. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 1345 is Rubber shoddy, powdered or granulated, a Class 4 flammable solid assigned to ERG Guide 133. It may burn as powder, granules, lumps or softened material depending on the exact product and fire conditions.
Hazard overview: UN 1345 presents flammable solid, dust and smoke hazards. Powders can burn rapidly or form dust-air mixtures, while fire may produce irritating smoke and contaminated residue.
Response guidance: For a UN 1345 incident, responders should verify the product with shipping papers, package markings, SDS and ERG Guide 133. Establish incident command, isolate the area, stay upwind, avoid unnecessary disturbance of powder or damaged packaging, and use only extinguishing agents compatible with the specific material.
Firefighter training notes: Training for UN 1345 should emphasize dust fire behavior, rapid surface burning, smoke exposure, compatible extinguishment and avoiding dust cloud generation. Use ERG 133, SDS and local SOP.
Regulatory context: Rubber shoddy, powdered or granulated is regulated as a hazardous material for transportation and emergency response purposes. Transportation, workplace exposure, spill reporting, waste handling, storage and environmental requirements may vary by formulation, quantity and jurisdiction. Verify current requirements through shipping papers, SDS, facility documents and applicable DOT, OSHA, EPA, NFPA, state or local authority guidance.
Storage & handling: Rubber shoddy, powdered or granulated should be stored in compatible containers in a cool, dry, well-ventilated area away from heat, sparks, open flames, oxidizers and incompatible materials. Prevent dust release, friction, impact and unauthorized access.
UN 1345 Quick Details
Common Hazards of UN 1345
- FLAMMABLE/COMBUSTIBLE organic solid; may be ignited by heat, sparks, friction or flames.
- Fine rubber particles or dust may burn rapidly and can create dust explosion hazards if dispersed.
- Fire may produce dense, irritating and toxic rubber smoke.
- Some material may soften, melt or flow when heated, spreading the fire.
- Containers or bags may fail when exposed to fire.
- Runoff from fire control may carry contaminated residue.
- Avoid creating dust clouds during cleanup.
Chemical Identity & Physical Properties
Brown to black powdered or granulated solid material derived from scrap rubber. Typically has a characteristic rubber odor and appears as fine particles or granules at room temperature.
| Also known as | Rubber shoddyPowdered rubber shoddyGranulated rubber shoddyReclaimed rubber powderGround rubber waste |
| Appearance | Brown to black powdered or granulated solid material derived from scrap rubber. Typically has a characteristic rubber odor and appears as fine particles or granules at room temperature. |
| Flash Point | Not applicable (combustible solid) |
| Boiling Point | Not applicable (solid material, decomposes) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | No significant reaction with water |
Fireground Response Guidance — UN 1345
Extinguishing Media
PPE Requirements
Use SCBA for fire, smoke, dust or confined-space exposure. Gloves, eye protection and protective clothing should be selected from SDS; avoid dust generation and contaminated residue contact.
Isolation & Evacuation
First Actions for a UN 1345 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.
- Eliminate ignition sources if it is safe to do so.
- Avoid creating dust clouds or spreading powder during movement or cleanup.
- Ventilate closed spaces before entering, but only if properly trained, equipped and authorized by incident command.
- Isolate the spill or fire area and expand the perimeter if large quantities, dust clouds or fire involvement are present.
- Use ERG Guide 133, shipping papers, SDS and incident command for protective actions and entry decisions.
📋 Copy & Share Field Card
UN 1345 — Rubber shoddy, powdered or granulatedUse for: Quick radio or face-to-face size-up. Short, structured, field-ready.
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
Use for: Quick text to command or incoming units. Fits in a single SMS.