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Oil & Gas Training
and Competency Development
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    Oil and Gas Training Courses SLB NEXT

    Gas Testing

    Course Objective
    • This course is designed to provide the delegates with the knowledge and competencies required to carry out gas testing of atmospheres in confined spaces for pre-entry and on an ongoing basis. To provide personnel preparing for a gas tester role with the knowledge to safely conduct gas tests for oxygen levels, and flammable and toxic gases. In addition, this course also equips the delegates with the knowledge necessary to conduct gas testing within confined spaces and an awareness of associated confined space hazards.
    The following points shall be discussed in the course:
    • Determining gas/atmosphere types.
    • Understanding environmental harm related to gas exposure
    • Understanding toxic risk to gas exposure 
    • Different types of gas test equipment. 
    • Selecting and calibrating equipment appropriate for the workplace.
    • Determining gas testing regime/sampling patterns.
    • Identifying hazards from possible atmosphere contaminants. 
    • Implementing hazard control measures, including the use of PPE. 
    • Using gas testing equipment to test gas. 
    • Interpreting and reporting readings. 
    • How to monitor gas. 
    • Cleaning and maintaining gas testing equipment.
    • How to inspect and fault-find monitoring equipment. 
    • Maintaining equipment and records of tests.
    • Identifying workplace hazards and risks. 
    • Implementing hazard and risk control procedures. 
    • Monitoring effectiveness of hazard and risk control procedures.
    • Legislative and regulatory requirements 
    • Risk assessments 
    • Safe systems of work and permits to enter 
    • Gases and their hazards 
    • Sampling considerations 
    • Theory and practice of gas detection and detectors 
    • Pre-entry testing 
    • On-going monitoring 
    • Interpreting and documenting results

    • Session 1 - Course Introduction  
    • Session 2 – What is Gas Testing?
    • Definition of Gas Testing 
    • Justifications of Gas Testing in the Workplace
    • Examples of working conditions and scenarios which require gas testing
    • Session 3 – Classifications of Gases
    • Indication of gases based on air density
    • Indication of gases based on safety hazards
    • Session 4 – Fire Hazards
    • What is a Fire?
    • How does a Fire Start? 
    • Explanation of the Fire Triangle and its effect on combustible gases 
    • The importance of abiding by flammable limit values to avoid potential fires in the workplace. 
    • Explanation of Flash Point with examples
    • Explanation of Auto Ignition Temperature with examples
    • Explanation of the Lower Explosive Limit and its significance
    • Explanation of Upper Explosive Limit and its significance
    • Session 5 – Risk of Toxic Exposure 
    • Define Corrosive Chemicals and provide examples
    • Define Toxic Chemicals and provide examples 
    • Define and Explain the Permissible Exposure Limit
    • Define and Explain the Threshold Limit Value 
    • Define and Explain Immediately Dangerous to Life and Health
    • Indicate the importance of monitoring side effects during exposure 
    • Indicate the importance of first aid during an emergency response 
    • Session 6 – Indication of Gas Zones 
    • Indication of Zone 0 with examples 
    • Indication of Zone 1 with examples 
    • Indication of Zone 2 with examples 
    • Session 7 – Group Discussion: Overview of the previous points with real-life examples of the significance of gas testing

    • Session 8 – Permit to Work System for Gas Detecting 
    • Definition of a Permit to Work 
    • The importance of inspecting the area before issuing the permit.
    • Adhering to the limit values for gas testing procedures
    • Recording the values for the gases in the area
    • The significance of recording oxygen levels in the gas testing area 
    • Issuing the permit 
    • Receipt the Permit
    • What the organization needs to assess before starting the work 
    • Clearance/Return to Service and the differences between them 
    • Extension and when it is necessary
    • Provide different examples of Permit Work Systems that may be required with a confined space permit 
    • Session 9 – Gas Detector
    • Defining a gas detector 
    • Examples of single-gas detectors and multi-gas detectors
    • Session 10 – Group Discussion: The instructor shall demonstrate the usage of a single gas detector in the workplace 

    • Session 11 – Group Discussion: The instructor shall demonstrate the usage of multi-gas detectors in the workplace. 
    • Session 12 – Point or Open Path Detectors 
    • Indicate the purpose of Infrared Sensors 
    • Indicate their mechanism and the way they operate 
    • Advantages and disadvantages of Infrared Sensors 
    • Session 13 – Catalytic Sensors
    • Indicate the purpose of Catalytic Sensors
    • Indicate their mechanism and the way they operate 
    • Understand the Wheatstone Principle 
    • Advantages and disadvantages of Catalytic Sensors
    • Session 14 – Thermal Conductivity Sensor
    • Indicate the purpose of Thermal Conductivity Sensors
    • Indicate their mechanism and the way they operate
    • Advantages and disadvantages of Thermal Conductivity Sensors 
    • Session 15 – Atmospheric Testing 
    • How to measure gases in reference to Oxygen 
    • How to measure gases that are lighter than air
    • How do measure gases that are the same as air
    • How to measure gases that are heavier than air
    • Placement of fixed gas detectors inside the gas testing area
    • Session 16 – First Aid Response 
    • Assess the history, symptoms, and signs of an accident
    • How to stay calm during an accident 
    • How to promptly move the worker away from the emergency site
    • How to check for signs of life in an injured worker
    • 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 17 – Review  & Exam 

    • Gas Testing Personnel
    • Safety Officers
    • Safety Supervisor

    • The importance of gas testing
    • Gas Detecting Methods
    • Hazards of Gas Exposure 
    • Monitoring the efficiency of gas detection systems 
    • Roles and Responsibilities of Staff 
    • Various forms of hazardous substances
    • Various types of gases
    • Importance of MSDS
    • Proper gas testing techniques
    • Do and don’ts of gas testing
    • Types of gas meters and operation

    • Previous experience in high-risk work areas, such as confined spaces and/or another permission to work areas.


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