☣️ UN 0124 • CLASS 1

UN 0124 — Jet perforating guns, charged, oil well, without detonator

Placard: Explosive 1.1D. 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.

UN 0124, also known as jet perforating guns, are metal cylindrical assemblies containing multiple shaped explosive charges. They are typically used in oil well operations and can pose a significant blast and fragmentation hazard.

Hazard overview: The jet perforating guns pose a shaped charge hazard and can cause blast and fragmentation, making them highly hazardous. They can also explode and cause significant damage.

Response guidance: In case of a fire, evacuate the area and treat it as a mass explosion hazard. Do not apply foam or water directly, and use distance and protective barriers instead.

UN 0124 Quick Details

UN 0124

Product name: Jet perforating guns, charged, oil well, without detonator

DOT Class: 1

Placard type: Explosive 1.1D

ERG Guide: 112 (check current ERG)

Initial isolation: ERG 112: Isolate 500m (1600 ft) all directions; evacuate 800m (0.5 mile) if fire; treat as mass explosion hazard

Common Hazards of UN 0124

Shaped charge hazard
Blast and fragmentation potential
Requires specialized handling

Chemical Identity & Physical Properties

The jet perforating guns are metal cylindrical assemblies containing multiple shaped explosive charges, typically steel construction with explosive-filled conical liners.

Also known as	Shaped charge perforating gunsOil well perforatorsWireline perforating chargesWell completion explosivesDownhole shaped charges
Appearance	Metal cylindrical assemblies containing multiple shaped explosive charges arranged in a tubular carrier. Typically steel construction with explosive-filled conical liners designed to penetrate well casing and formation rock.
Flash Point	Not applicable (explosive device)
Boiling Point	Not applicable (explosive device)
Vapor Density	Not applicable (solid explosive device)
Water Reactivity	No significant reaction with water, but moisture may degrade explosive performance over time

Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.

Fireground Response Guidance — UN 0124

Extinguishing Media

Do not apply foam or water directly; use distance and protective barriers; explosives 1.1D require no fire suppression in immediate area

PPE Requirements

⚠️ Level B minimum with fragment-resistant protection; SCBA required; maintain maximum distance; specialized EOD personnel for emergency response

Level B minimum personal protective equipment with fragment-resistant protection and SCBA is required, along with maintaining maximum distance and specialized EOD personnel for emergency response.

Isolation & Evacuation

ERG 112: Isolate 500m (1600 ft) all directions; evacuate 800m (0.5 mile) if fire; treat as mass explosion hazard

Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 112).

First Actions for a UN 0124 Incident

CALL 911. Then call emergency response number on shipping paper.
Isolate; stage upwind
Request Hazmat + law enforcement immediately
Do not approach or disturb
Consult current ERG Guide 112 and SOP/SOG

📋 Copy & Share Field Card

UN 0124 — Jet perforating guns, charged, oil well,

HAZMAT RADIO NOTE — UN 0124 Product: Jet perforating guns, charged, oil well, without detonator Class 1 / Explosive 1.1D / ERG 112 PPE: Level B minimum with fragment-resistant protection; SCBA required; maintain maximum distance; specialized EOD personnel for emergency response ISOLATION: ERG 112: Isolate 500m (1600 ft) all directions; evacuate 800m (0.5 mile) if fire; treat as mass explosion hazard 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 0124 — Jet perforating guns, charged, oil well, without detonator Class: 1 | Placard: Explosive 1.1D | ERG Guide: 112 Appearance: Metal cylindrical assemblies containing multiple shaped explosive charges arranged in a tubular carrier. Typically steel construction with explosive-filled conical liners designed to penetrate well casing and formation rock. Water Reactivity: No significant reaction with water, but moisture may degrade explosive performance over time Extinguishing: Do not apply foam or water directly; use distance and protective barriers; explosives 1.1D require no fire suppression in immediate area PPE: Level B minimum with fragment-resistant protection; SCBA required; maintain maximum distance; specialized EOD personnel for emergency response Isolation: ERG 112: Isolate 500m (1600 ft) all directions; evacuate 800m (0.5 mile) if fire; treat as mass explosion hazard — Key Hazards — • Shaped charge hazard • Blast and fragmentation potential • Requires specialized handling — First Actions — • CALL 911. Then call emergency response number on shipping paper. • Isolate; stage upwind • Request Hazmat + law enforcement immediately • Do not approach or disturb SOURCE: allfirefighter.com/hazmat/un/jet-perforating-guns-charged-un-0124 | Always use current ERG + SOP/SOGIC BRIEFING

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

SMS (short)

UN0124 Jet perforating guns, charged, oil well, without detonator Cls1 ERG112 | allfirefighter.com/hazmat/un/jet-perforating-guns-charged-un-0124SMS / 160 CHAR

Use for: Quick text to command or incoming units. Fits in a single SMS.

Open in Messages WhatsApp

⚠️ Quick-reference only. Always use current ERG + SOP/SOG for incident-specific actions. Page: https://allfirefighter.com/hazmat/un/jet-perforating-guns-charged-un-0124

Related UN Numbers in Class 1

Open Class Guide →Hazmat Hub →

UN 0004 UN 0012 UN 0027 UN 0028 UN 0030 UN 0033 UN 0042 UN 0043 UN 0048 UN 0055 UN 0056 UN 0058

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

Frequently Asked Questions about UN 0124

Yes, UN 0124 jet perforating guns are explosive and can pose a significant shaped charge hazard.

Yes, UN 0124 jet perforating guns can cause blast and fragmentation, making them highly hazardous.

Evacuate the area and treat it as a mass explosion hazard, using distance and protective barriers instead of direct fire suppression.

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.