☣️ UN 2000 • CLASS 4
Celluloid, in block, rods, rolls, sheets, tubes, etc., except scrap
Placard: Flammable Solid. 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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Quick details
UN 2000
Class: 4
Placard type: Flammable Solid
ERG: Guide 133 (check current ERG)
Isolation: ERG 133: isolate 50m all directions; for large fire, consider evacuation 300m in all directions
Chemical & Response Details
| Also known as | Cellulose nitrateNitrocellulose plasticPyroxylin plasticCelluloid film |
| CAS Number | 9004-70-0 |
| Appearance | Solid material appearing as colorless to pale yellow blocks, rods, rolls, sheets, or tubes. Characteristic camphor-like odor. Highly flammable thermoplastic. |
| Flash Point | Not applicable (solid) |
| Boiling Point | Not applicable (decomposes) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | No significant reaction with water |
| Extinguishing | Water spray, dry chemical, CO2, foam acceptable; large fires may require flooding quantities of water |
| PPE | ⚠️ Structural firefighters' protective clothing with SCBA for fire conditions; Level C minimum for handling intact material |
| Isolation | ERG 133: isolate 50m all directions; for large fire, consider evacuation 300m in all directions |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- 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.
First actions (field-minded)
- 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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UN 2000 — Celluloid, in block, rods, rolls, sheets HAZMAT RADIO NOTE — UN 2000
Product: Celluloid, in block, rods, rolls, sheets, tubes, etc., except scrap
Class 4 / Flammable Solid / ERG 133
PPE: Structural firefighters' protective clothing with SCBA for fire conditions; Level C minimum for handling intact material
ISOLATION: ERG 133: isolate 50m all directions; for large fire, consider evacuation 300m 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.
=== IC HAZMAT BRIEFING ===
UN 2000 — Celluloid, in block, rods, rolls, sheets, tubes, etc., except scrap
Class: 4 | Placard: Flammable Solid | ERG Guide: 133
Appearance: Solid material appearing as colorless to pale yellow blocks, rods, rolls, sheets, or tubes. Characteristic camphor-like odor. Highly flammable thermoplastic.
Water Reactivity: No significant reaction with water
Extinguishing: Water spray, dry chemical, CO2, foam acceptable; large fires may require flooding quantities of water
PPE: Structural firefighters' protective clothing with SCBA for fire conditions; Level C minimum for handling intact material
Isolation: ERG 133: isolate 50m all directions; for large fire, consider evacuation 300m in all directions
— 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/2000 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN2000 Celluloid, in block, rods, rolls, sheets, tubes, etc., except scrap Cls4 ERG133 | allfirefighter.com/hazmat/un/2000SMS / 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/2000
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FAQ
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 firefighters' protective clothing with SCBA for fire conditions; Level C minimum for handling intact material
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.