☣️ UN 1345 • CLASS 4

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.

🚒☣️
⚠️ 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.

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.

Advertisement

UN 1345 Quick Details

UN 1345
Product name: Rubber shoddy, powdered or granulated
DOT Class: 4
Placard type: Flammable Solid
ERG Guide: 133 (check current ERG)
Initial isolation: ERG 133: Small spills isolate 25m all directions; large spills isolate 50m, evacuate 300m if tank/railcar involved in fire

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 asRubber shoddyPowdered rubber shoddyGranulated rubber shoddyReclaimed rubber powderGround rubber waste
AppearanceBrown 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 PointNot applicable (combustible solid)
Boiling PointNot applicable (solid material, decomposes)
Vapor DensityNot applicable (solid)
Water ReactivityNo significant reaction with water
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.

Fireground Response Guidance — UN 1345

Extinguishing Media

Use water spray, fog, foam, dry chemical or CO2 only when compatible with the specific material and incident command; avoid spreading dust or burning material.

PPE Requirements

⚠️ Level D minimum for routine handling; Level C with SCBA for fire or large spill situations; dust mask or respirator to prevent inhalation of fine particles

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

ERG 133: Small spills isolate 25m all directions; large spills isolate 50m, evacuate 300m if tank/railcar involved in fire
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 133).

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.
Advertisement

📋 Copy & Share Field Card

UN 1345 — Rubber shoddy, powdered or granulated
HAZMAT RADIO NOTE — UN 1345 Product: Rubber shoddy, powdered or granulated Class 4 / Flammable Solid / ERG 133 PPE: Level D minimum for routine handling; Level C with SCBA for fire or large spill situations; dust mask or respirator to prevent inhalation of fine particles ISOLATION: ERG 133: Small spills isolate 25m all directions; large spills isolate 50m, evacuate 300m if tank/railcar involved in fire ACTION: Stage upwind · Isolate · Deny entry · Request HazmatRADIO

Use for: Quick radio or face-to-face size-up. Short, structured, field-ready.

SMS WhatsApp
=== IC HAZMAT BRIEFING === UN 1345 — Rubber shoddy, powdered or granulated Class: 4 | Placard: Flammable Solid | ERG Guide: 133 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. Water Reactivity: No significant reaction with water Extinguishing: Use water spray, fog, foam, dry chemical or CO2 only when compatible with the specific material and incident command; avoid spreading dust or burning material. PPE: Level D minimum for routine handling; Level C with SCBA for fire or large spill situations; dust mask or respirator to prevent inhalation of fine particles Isolation: ERG 133: Small spills isolate 25m all directions; large spills isolate 50m, evacuate 300m if tank/railcar involved in fire — Key Hazards — • 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. — 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. • Eliminate ignition sources if it is safe to do so. SOURCE: allfirefighter.com/hazmat/un/rubber-shoddy-powdered-or-un-1345 | Always use current ERG + SOP/SOGIC BRIEFING

Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.

SMS (short)
UN1345 Rubber shoddy, powdered or granulated Cls4 ERG133 | allfirefighter.com/hazmat/un/rubber-shoddy-powdered-or-un-1345SMS / 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/rubber-shoddy-powdered-or-un-1345

Related UN Numbers in Class 4

Discovery block for training / quick reference. Always consult the current ERG + your SOP/SOG for operations.
Advertisement

Frequently Asked Questions about UN 1345

UN 1345 is Rubber shoddy, powdered or granulated, a hazardous material assigned to ERG Guide 133.

Yes. It is a flammable solid and may ignite from heat, sparks, friction or flames.

ERG Guide 133 applies to UN 1345 for initial isolation, protective actions and first response guidance.

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.
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.