☣️ UN 0238 • CLASS 1

UN 0238 — Rockets, line-throwing

Placard: Explosive 1.3G. ERG Guide 112. 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 0238 Quick Details

UN 0238
Product name: Rockets, line-throwing
DOT Class: 1
Placard type: Explosive 1.3G
ERG Guide: 112 (check current ERG)
Initial isolation: ERG 112: Initial isolation 500m in all directions; if fire involves rockets, evacuate 1600m radius; protect from fire, shock, and static discharge

Common Hazards of UN 0238

  • Fire and burning hazard — not mass explosion.
  • Intense heat and possible fragment projection.
  • May deflagrate and initiate other materials.
  • Smoke and toxic combustion products.

Chemical Identity & Physical Properties

Also known asLine-throwing rocketsDistress signal rocketsMarine line-throwing apparatusShip-to-ship line rockets
AppearanceSolid propellant rockets in cylindrical metal or composite casings, typically red or orange colored, designed to carry a line for rescue or mooring operations. Contains explosive propellant and may include pyrotechnic illuminating or signaling components.
Flash PointNot applicable (explosive solid with self-contained oxidizer)
Boiling PointNot applicable (solid explosive composition)
Vapor DensityNot applicable (solid article)
Water ReactivityGenerally stable in water, but moisture can degrade propellant over time; do not use water to extinguish burning rockets
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.

Fireground Response Guidance — UN 0238

Extinguishing Media

Do not use foam or water; use dry chemical, sand, or earth to smother small fires; allow larger fires to burn unless threatening structures

PPE Requirements

⚠️ Level B minimum with structural firefighting gear; SCBA required; maintain blast-resistant cover; fragment projection risk up to 300m

Isolation & Evacuation

ERG 112: Initial isolation 500m in all directions; if fire involves rockets, evacuate 1600m radius; protect from fire, shock, and static discharge
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 112).

First Actions for a UN 0238 Incident

  • CALL 911. Then call emergency response telephone number on shipping paper.
  • Isolate area; stage upwind — fire and fragment hazard.
  • Request Hazmat + law enforcement.
  • Control ignition sources; deny entry.
  • Consult current ERG Guide 112 and follow SOP/SOG.
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📋 Copy & Share Field Card

UN 0238 — Rockets, line-throwing
HAZMAT RADIO NOTE — UN 0238 Product: Rockets, line-throwing Class 1 / Explosive 1.3G / ERG 112 PPE: Level B minimum with structural firefighting gear; SCBA required; maintain blast-resistant cover; fragment projection risk up to 300m ISOLATION: ERG 112: Initial isolation 500m in all directions; if fire involves rockets, evacuate 1600m radius; protect from fire, shock, and static discharge 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 0238 — Rockets, line-throwing Class: 1 | Placard: Explosive 1.3G | ERG Guide: 112 Appearance: Solid propellant rockets in cylindrical metal or composite casings, typically red or orange colored, designed to carry a line for rescue or mooring operations. Contains explosive propellant and may include pyrotechnic illuminating or signaling components. Water Reactivity: Generally stable in water, but moisture can degrade propellant over time; do not use water to extinguish burning rockets Extinguishing: Do not use foam or water; use dry chemical, sand, or earth to smother small fires; allow larger fires to burn unless threatening structures PPE: Level B minimum with structural firefighting gear; SCBA required; maintain blast-resistant cover; fragment projection risk up to 300m Isolation: ERG 112: Initial isolation 500m in all directions; if fire involves rockets, evacuate 1600m radius; protect from fire, shock, and static discharge — Key Hazards — • Fire and burning hazard — not mass explosion. • Intense heat and possible fragment projection. • May deflagrate and initiate other materials. — First Actions — • CALL 911. Then call emergency response telephone number on shipping paper. • Isolate area; stage upwind — fire and fragment hazard. • Request Hazmat + law enforcement. • Control ignition sources; deny entry. SOURCE: allfirefighter.com/hazmat/un/0238 | Always use current ERG + SOP/SOGIC BRIEFING

Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.

SMS (short)
UN0238 Rockets, line-throwing Cls1 ERG112 | ERG 112: Initial isolation 500m in all directions; if fire involves rockets, eva | allfirefighter.com/hazmat/un/0238SMS / 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/0238

Related UN Numbers in Class 1

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 0238

Fire and burning hazard — not mass explosion. Intense heat and possible fragment projection. May deflagrate and initiate other materials. Smoke and toxic combustion products.

CALL 911. Then call emergency response telephone number on shipping paper. Isolate area; stage upwind — fire and fragment hazard. Request Hazmat + law enforcement.

Level B minimum with structural firefighting gear; SCBA required; maintain blast-resistant cover; fragment projection risk up to 300m

Water reactivity: Generally stable in water, but moisture can degrade propellant over time; do not use water to extinguish burning rockets. Recommended extinguishing: Do not use foam or water; use dry chemical, sand, or earth to smother small fires; allow larger fires to burn unless threatening structures.

ERG Guide 112 recommendation: ERG 112: Initial isolation 500m in all directions; if fire involves rockets, evacuate 1600m radius; protect from fire, shock, and static discharge

No. This is a training/quick-reference aid only. Always consult the current ERG Guide 112 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.