☣️ UN 1945 • CLASS 4
UN 1945 — Matches, wax “vesta”
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.
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UN 1945 Quick Details
UN 1945
Product name: Matches, wax “vesta”
DOT Class: 4
Placard type: Flammable Solid
ERG Guide: 133 (check current ERG)
Initial isolation: ERG 133: Small spills isolate 25m (80ft) all directions; large spills isolate 50m (160ft) and consider evacuation 300m (1000ft) downwind if fire develops
Common Hazards of UN 1945
- 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 | Wax vestasWax-coated matchesVesta matchesSafety matches wax-coated |
| Appearance | Small wooden sticks coated with paraffin wax and tipped with combustible match head material. Typically tan or brown in color with distinctive sulfur or chemical odor from match heads. |
| Flash Point | Not applicable (ignites by friction at approximately 180-200°C/356-392°F) |
| Boiling Point | Not applicable (solid combustible material) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | No significant reaction with water, but wetting reduces ignitability |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 1945
Extinguishing Media
Water spray, foam, dry chemical, CO2, sand, or earth to extinguish
PPE Requirements
⚠️ Structural firefighters' protective clothing provides limited thermal protection; self-contained breathing apparatus (SCBA) recommended in enclosed spaces or large fires
Isolation & Evacuation
ERG 133: Small spills isolate 25m (80ft) all directions; large spills isolate 50m (160ft) and consider evacuation 300m (1000ft) downwind if fire develops
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 133).
First Actions for a UN 1945 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 1945 — Matches, wax “vesta”HAZMAT RADIO NOTE — UN 1945
Product: Matches, wax “vesta”
Class 4 / Flammable Solid / ERG 133
PPE: Structural firefighters' protective clothing provides limited thermal protection; self-contained breathing apparatus (SCBA) recommended in enclosed spaces or large fires
ISOLATION: ERG 133: Small spills isolate 25m (80ft) all directions; large spills isolate 50m (160ft) and consider evacuation 300m (1000ft) downwind if fire develops
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 1945 — Matches, wax “vesta”
Class: 4 | Placard: Flammable Solid | ERG Guide: 133
Appearance: Small wooden sticks coated with paraffin wax and tipped with combustible match head material. Typically tan or brown in color with distinctive sulfur or chemical odor from match heads.
Water Reactivity: No significant reaction with water, but wetting reduces ignitability
Extinguishing: Water spray, foam, dry chemical, CO2, sand, or earth to extinguish
PPE: Structural firefighters' protective clothing provides limited thermal protection; self-contained breathing apparatus (SCBA) recommended in enclosed spaces or large fires
Isolation: ERG 133: Small spills isolate 25m (80ft) all directions; large spills isolate 50m (160ft) and consider evacuation 300m (1000ft) downwind if fire develops
— 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/1945 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN1945 Matches, wax “vesta” Cls4 ERG133 | ERG 133: Small spills isolate 25m (80ft) all directions; large spills isolate 50 | allfirefighter.com/hazmat/un/1945SMS / 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/1945
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Frequently Asked Questions about UN 1945
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 provides limited thermal protection; self-contained breathing apparatus (SCBA) recommended in enclosed spaces or large fires
Water reactivity: No significant reaction with water, but wetting reduces ignitability. Recommended extinguishing: Water spray, foam, dry chemical, CO2, sand, or earth to extinguish.
ERG Guide 133 recommendation: ERG 133: Small spills isolate 25m (80ft) all directions; large spills isolate 50m (160ft) and consider evacuation 300m (1000ft) downwind if fire develops
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.