☣️ UN 1324 • CLASS 4

UN 1324 — Films, nitrocellulose base

Placard: Flammable Solid. 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.

UN 1324 is Films, nitrocellulose base, a nitrocellulose-based Class 4 flammable solid assigned to ERG Guide 133. It can burn rapidly and produce heavy toxic smoke, especially in storage or archive fire conditions.

Hazard overview: UN 1324 presents rapid-burning nitrocellulose fire hazards. Heat or sparks can ignite the film, and fire may produce nitrogen oxides, carbon monoxide and dense smoke; large quantities may burn violently.

Response guidance: For a UN 1324 incident, responders should confirm the product using shipping papers, container markings, SDS and ERG Guide 133. Establish incident command, isolate the area, stay upwind and uphill, remove ignition sources when safe, keep vapors, dust or runoff out of drains where relevant, and use compatible fire-control agents from a protected position.

Firefighter training notes: Training for UN 1324 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: Films, nitrocellulose base 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: Films, nitrocellulose base 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.

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UN 1324 Quick Details

UN 1324
Product name: Films, nitrocellulose base
DOT Class: 4
Placard type: Flammable Solid
ERG Guide: 133 (check current ERG)
Initial isolation: ERG 133: isolate 25m in all directions; for large fire isolate 800m in all directions

Common Hazards of UN 1324

  • HIGHLY FLAMMABLE nitrocellulose-based solid; may ignite readily from heat, sparks or flames.
  • Can burn rapidly with intense heat and difficult-to-control flame spread.
  • Confined or large quantities may create pressure, violent burning or fragment hazards.
  • Fire may produce irritating and toxic gases including nitrogen oxides and carbon monoxide.
  • May re-ignite after apparent extinguishment if hot material remains.
  • Smoke exposure may be significant in storage or archive fires.
  • Avoid unnecessary handling of fire-damaged material.

Chemical Identity & Physical Properties

Solid film material, typically clear to amber colored with a characteristic camphor-like odor. Highly flammable solid at room temperature consisting of cellulose nitrate polymer base.

Also known asNitrocellulose filmCellulose nitrate filmMotion picture film (nitrate base)X-ray film (nitrate base)Pyroxylin film
AppearanceSolid film material, typically clear to amber colored with a characteristic camphor-like odor. Highly flammable solid at room temperature consisting of cellulose nitrate polymer base.
Flash PointNot applicable (flammable solid)
Boiling PointNot applicable (decomposes before boiling)
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 1324

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 B minimum; SCBA required; face shield and flame-resistant clothing recommended

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: isolate 25m in all directions; for large fire isolate 800m in all directions
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 133).

First Actions for a UN 1324 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.
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📋 Copy & Share Field Card

UN 1324 — Films, nitrocellulose base
HAZMAT RADIO NOTE — UN 1324 Product: Films, nitrocellulose base Class 4 / Flammable Solid / ERG 133 PPE: Level B minimum; SCBA required; face shield and flame-resistant clothing recommended ISOLATION: ERG 133: isolate 25m in all directions; for large fire isolate 800m in all directions 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 1324 — Films, nitrocellulose base Class: 4 | Placard: Flammable Solid | ERG Guide: 133 Appearance: Solid film material, typically clear to amber colored with a characteristic camphor-like odor. Highly flammable solid at room temperature consisting of cellulose nitrate polymer base. 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 B minimum; SCBA required; face shield and flame-resistant clothing recommended Isolation: ERG 133: isolate 25m in all directions; for large fire isolate 800m in all directions — Key Hazards — • HIGHLY FLAMMABLE nitrocellulose-based solid; may ignite readily from heat, sparks or flames. • Can burn rapidly with intense heat and difficult-to-control flame spread. • Confined or large quantities may create pressure, violent burning or fragment hazards. — 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/films-nitrocellulose-base-un-1324 | Always use current ERG + SOP/SOGIC BRIEFING

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

SMS (short)
UN1324 Films, nitrocellulose base Cls4 ERG133 | allfirefighter.com/hazmat/un/films-nitrocellulose-base-un-1324SMS / 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/films-nitrocellulose-base-un-1324

Related UN Numbers in Class 4

Discovery block for training / quick reference. Always consult the current ERG + your SOP/SOG for operations.
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Frequently Asked Questions about UN 1324

UN 1324 is Films, nitrocellulose base, a hazardous material assigned to ERG Guide 133.

Yes. Nitrocellulose film is highly flammable and can burn rapidly once ignited.

ERG Guide 133 applies to UN 1324 for initial isolation, protective actions and first response guidance.

UN 1324 presents rapid-burning nitrocellulose fire hazards. Heat or sparks can ignite the film, and fire may produce nitrogen oxides, carbon monoxide and dense smoke; large quantities may burn violently.

Nitrocellulose film can burn rapidly and produce dense toxic smoke, especially where older film is stored in quantity.
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.