Oxy-Acetylene Torch Safety for Sheet Pile Cutting

Date: 2025-09-24

Duration: [DURATION] minutes

Presenter: [PRESENTER NAME]

Location: [LOCATION]

Objective

To provide safety guidelines for using oxy-acetylene torches to cut or pierce holes in sheet pile, including PPE requirements and hazard controls.

Introduction

This toolbox talk covers the safe use of oxy-acetylene torches for cutting and piercing sheet pile. It is crucial to understand the hazards and controls to prevent accidents and injuries.

Hazard Identification

Oxy-acetylene torches involve significant hazards. Understanding these risks is the first step in preventing incidents.

• Fire and Explosion Hazards: Acetylene is extremely flammable and can form explosive mixtures with air. Sparks, open flames, and hot surfaces can ignite the gas, leading to fires or explosions. [7] [10]
• Burns: Direct contact with the torch flame or hot metal can cause severe burns. [5]
• Asphyxiation: Acetylene can displace oxygen, leading to asphyxiation in poorly ventilated areas. [7]
• Flying sparks and molten metal: Can cause eye injuries, skin burns, and ignite flammable materials. [5]
• Lead Exposure: Sheet pile may be coated with lead-based paint. Torch cutting can generate lead fumes and dust, leading to lead poisoning. [6]

Control Measures

• Ventilation: Ensure adequate ventilation to prevent the accumulation of flammable gases and to reduce exposure to fumes. Use local exhaust ventilation where possible. [2]
• Flammable Material Clearance: Clear the work area of all flammable materials before starting work. [2]
• Equipment Inspection: Inspect all torches, hoses, and regulators for damage before each use. Replace any defective equipment immediately. [11]
• Flashback Arrestors: Install flashback arrestors on both the torch and regulator to prevent reverse flow of gases and to stop flames from traveling back into the gas cylinders. [3]
• Lead Hazard Control: If lead-based paint is present, implement a lead control program, including air monitoring, blood lead level testing, and proper disposal of waste. [6]
• Acetylene Pressure Limit: Ensure that acetylene is not generated, piped, or utilized at a pressure exceeding 15 psig (103 kPa gauge pressure) or 30 psia (206 kPa absolute). [1]

Personal Protective Equipment (PPE) Requirements

• Eye Protection: Wear safety glasses with side shields or goggles to protect against flying sparks and debris. A face shield should also be used for added protection. [4]
• Hand Protection: Wear fire-resistant gloves, such as leather welding gloves, to protect hands from burns and cuts. [4]
• Body Protection: Wear fire-resistant clothing, such as a welding apron or jacket, to protect the body from sparks and heat. [5]
• Respiratory Protection: If there is a potential for exposure to lead fumes or other hazardous substances, wear a respirator appropriate for the hazard. [5]
• Foot Protection: Wear safety shoes or boots to protect feet from falling objects and hot materials. [4]

Real-World Example or Case Study

A worker was using an oxy-acetylene torch to cut sheet pile without wearing proper eye protection. A spark entered his eye, causing a corneal burn. This incident highlights the importance of wearing appropriate PPE at all times.

Group Discussion

Discuss the following questions:

1. What are some additional hazards you have encountered when using oxy-acetylene torches?
2. What steps can we take to improve ventilation in our work area?
3. Have you ever experienced a near-miss incident with an oxy-acetylene torch? What did you learn from it?

Emergency Procedures

1. In case of fire, immediately shut off the gas supply and use a fire extinguisher. [10]
2. In case of a gas leak, shut off the gas supply and ventilate the area. [4]
3. In case of injury, provide first aid and seek medical attention. [8]

Questions and Answers

• Q: What should I do if I smell a gas leak?

A: Immediately shut off the gas supply, ventilate the area, and notify your supervisor. Do not use any ignition sources. [4]

• Q: What type of fire extinguisher should be used on an acetylene fire?

A: A dry chemical or carbon dioxide fire extinguisher rated at least 10 B:C should be used. [9]

• Q: How often should I inspect my equipment?

A: Equipment should be inspected at the beginning of each working shift. [11]

Summary

Recap of main points:

• Always wear appropriate PPE, including eye, hand, and body protection. [5]
• Ensure adequate ventilation to prevent gas accumulation and fume exposure. [2]
• Inspect equipment before each use and replace any defective components. [11]
• Be aware of the fire and explosion hazards associated with acetylene. [7]

Remember: Safety First: Every Cut, Every Time.

Report all hazards, near-misses, and incidents to your supervisor immediately.

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