• Class and Course

    Basic Hydrogen Sulfide Safety

    Course Objective

    • Hydrogen Sulfide is a naturally occurring but lethal gas that is commonly released in the oil and gas industry. The aim of the course is to understand the dangers of Hydrogen Sulfide in natural and industrial areas. This can be done by understanding the properties, the limit values, the side effects associated with each value and concentration, and the adequate controls from administrative controls to personal protective equipment and how they should be enforced in the workplace. The course also allows workers to understand the different types of respiratory protection in the workplace depending on the type of work being done, how long this equipment shall be worn, and when they should be replaced or removed. Workers shall also be assessed on the importance of emergency response and evacuation in the workplace, and how the worker must behave and respond calmly in order to save themselves and others.
    The following points shall be discussed in the course:
    • Properties of H2S. 
    • Locations of H2S. 
    • Identifying limit values. 
    • Understanding side effects of H2S due to the concentration. 
    • Understanding where to go during an H2S drill. 
    • Understanding how to use an SCBA. 
    • Understand the dangers of H2S in a permit-to-work area and a confined space.
    • Understand the roles and responsibilities of workers while working with H2S in open areas and confined spaces. 
    • Emergency evacuation procedures. 
    • First Aid for H2S drill. 
    • A brief understanding of how respiration occurs naturally. 
    • A brief overview of which types of gases can cause dangerous side effects when inhaled.
    • Identify the different types of breathing apparatuses and when they should be used. 
    • Identify how Breathing Apparatuses should be maintained.
    • Understand what the SCBA is and its parts. 
    • Specify the importance of the SCBA in an area that contains H2S.
    • Specify how to use it and prevent its degradation and when to replace it when needed. 

    • Session 1 – Course Introduction  
    • Session 2 – Identifying Hydrogen Sulfide 
    • Hydrogen Sulfide common names 
    • Hydrogen Sulfide’s natural locations 
    • Hydrogen Sulfide’s industrial locations
    • Operations in the oil field industry in which Hydrogen Sulfide can appear
    • Hydrogen Sulfide’s capacity to replace Oxygen 
    • Hydrogen Sulfide’s capacity to become flammable and reactive
    • Hydrogen Sulfide’s effect on the body 
    • Hydrogen Sulfide’s effect on the materials in the workplace 
    • Session 3 – Group Discussion: Discuss with the trainees the possible locations of Hydrogen Sulfide in natural and industrial settings with a revision of the properties of Hydrogen Sulfide. 
    • Session 4 – Concentration and Dosage
    • Hydrogen Sulfide’s heavier-than-air property and its effect on oxygen 
    • Define and Explain Explosive Range 
    • Define and Explain Hydrogen Sulfide’s Threshold Limit Value 
    • Define and Explain Hydrogen Sulfide’s Short Term Exposure Limit
    • The symptoms and signs of Hydrogen Sulfide Exposure 
    • Correlation of symptoms and signs in accordance to concentration in the air 
    • How the Exposure Limits are critical to avoid lethal dosages and side effects
    • Session 5 - Group Discussion: Discuss with the trainees the different exposure limit values in their workplace and how they are indicated. 
    • Session 6 – Gas Detectors
    • Explain the single gas detector and its function 
    • Explain the multi-gas detector and its function 
    • Explain the fixed gas detector and its function 
    • Explain which staff should use which detectors and for what purpose 
    • Explain the maintenance of gas detectors 
    • Explain how the gas detectors are used to correlate with other controls
    • Session 7 – Practical Demonstration: Show the trainees the different types of detectors and show them how to calibrate them. 

    Session 8 – Breathing Apparatus

    • Definition of Breathing Apparatus
    • The different types of Breathing Apparatus 
    • The difference between Breathing Apparatuses and Respirators
    • Introduction to SCBA (Self-Contained Breathing Apparatus)
    • The purpose of using the SCBA
    • The parts of the SCBA are as follows:
      • a) Cylinder 
      • b) Cylinder Valve
      • c) Back Plate
      • d) Harness Assembly 
      • e) High- and Low-Pressure Hose 
      • f) Pressure Gauge 
      • g) Pressure Reducer 
      • h) Warning Whistle 
      • i) Face Piece 
    • How to inspect the SCBA before use 
    • Where the SCBA should be stored 
    • How to provide maintenance for the SCBA
    • The difference between the SCBA and the Escape Kit
    • How to effectively put on the SCBA
    • Negative and Positive Pressure Test
    • What to do before the SCBA runs out of air
    • Emergency Response during an H2S Drill
    Session 9 – Practical Session 
    • Two scenarios will be provided in which all trainees will be requested to equip the SCBA within a short period of time for work and for emergency response.  
    Session 10 – Emergency Response
    • How a worker should react during an emergency 
    • Indication of areas of refuge from Hydrogen Sulfide 
    • Wind direction and escaping from Hydrogen Sulfide
    • How to protect yourself from exposure 
    • How to protect others from exposure 
    Session 11 – Neck and Spinal Cord Injuries 
    • Identify the workplace scenarios that can lead to neck and spinal cord injuries. 
    • How to effectively identify the places in which the paralysis may have spread. 
    • The importance of not moving the patient unless necessary.
    • How to effectively prevent the spread of paralysis. 
    Session 12 – Practical Session 
    • Trainees will demonstrate adequate lifting techniques to move a neck and spinal cord injured patient from one place to another without increasing their risk of permanent paralysis.
    Session 13 – First Aid through Cardiopulmonary Resuscitation (CPR) and the Automatic External Defibrillator (AED)
    • When should a first aider use CPR. 
    • The steps to CPR by using C-A-B (Circulation, Compression, Airway, and Rescue Breaths)
    • How to correctly perform chest compressions 
    • How to correctly open the airway 
    • How to correctly perform rescue breath.
    • The importance of repeating the CPR Process in saving a person’s life. 
    • Understanding the functions of the AED.
    • Precautions before using the AED. 
    • How to correctly place the AED pads.
    • How to use it alongside CPR to save the person’s life
    Session 14 – Practical Session
    • Trainees will use a full-body mannequin to perform CPR and AED.

    • Everyone works with Hydrogen Sulfide Exposure

    • Hydrogen Sulfide and its properties
    • Dangers and Side Effects of Hydrogen Sulfide Exposure
    • Controls to avoid accidental over-exposure to Hydrogen Sulfide
    • How to evacuate safely during an Emergency Drill
    • Emergency Response and First Aid for injured employees
    • Audience
    • All personnel who in the normal course of their duties may be exposed to hazard Hydrogen Sulfide Gas (H2S)


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