H2S Safety Training


EDCONS Institute of Business & Technology offer Hydrogen Sulfide (H2S) safety course in complacence to API RP-49 and ANSI Z390.1 standards.
Our course methodology is not limited to theoretical interpretation of H2S properties and characteristics but this course is mainly focused on the realistic approach to make all participants understand and practice H2S awareness, protection, deduction and emergency response

The goal of the Hydrogen Sulfide (H2S) course is to learn how to recognize when Hydrogen Sulfide is present in your work area and to describe the precautions necessary to work with Hydrogen Sulfide safely. This program will help to fulfill the training requirements of API Recommended Practice 49, ANSI Z390.1 and other regulatory standards.

Our course begins with a comprehensive but simple presentation on H2S (Hydrogen Sulphide) gas including it’s properties, exposure limits, health hazards and your initial response strategy. Your training will also include an introduction to Self-Contained Breathing Apparatus (Fire Fighter Air Pack). During this part of the course, you will learn how to do a pre-use inspection, how to operate the equipment and training in after-use inspection.

You will then receive training in gas detection, which will require you to operate a manual gas detector and also gain an understanding of how electronic detectors work. Safety training with gas detection is very important for oilfield operations and an important part of your H2S training.

You will also learn various rescue techniques on how best to lift, drag, or carry a casualty to a safe area. You will be required to perform at least four basic rescue techniques for your certification. These techniques will include a one-person drag, a two-person drag, a two-arm drag and finally a two-person carry.

Additional Information:

  • RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide. American Petroleum Institute (API), (2001, May/Reaffirmed 2007, March). Includes well drilling, completion, servicing, workover, downhole maintenance, and plug and abandonment procedures conducted with hydrogen sulfide present in the fluids being handled.
  • Safety Issues. Association of Energy Services Companies (AESC).

–  Use of Anchors and Guywires
–  Use of Compressed Gas Cylinders
–  Crane Operation
–  Proper Electrical Safety (including hot sticks)
–  Hot Work
–  Fall Protection Systems
–  H2S – Hydrogen Sulfide
–  Respirator Usage
–  Use of wooden, metal and plastic (fiberglass) portable ladders
–  Scaffolding
–  Vehicle Operation

Comprehensive training should be provided for workers in H2S operations. Example topics include:

  • Identification of the characteristics, sources, and hazards of Hydrogen Sulfide.
  • Proper use of the Hydrogen Sulfide detection methods used on the site.
  • Recognition of, and proper response to, Hydrogen Sulfide warnings at the workplace.
  • Symptoms of Hydrogen Sulfide exposure.
  • Proper rescue techniques and first-aid procedures to be used in a Hydrogen Sulfide exposure.
  • Proper use and maintenance of personal protective equipment. Demonstrated proficiency in using PPE should be required.
  • Worker awareness and understanding of workplace practices and maintenance procedures to protect personnel from exposure to hydrogen sulfide.
  • Wind direction awareness and routes of egress.
  • Confined space and enclosed facility entry procedures.
  • Locations and use of safety equipment.
  • Locations of safe briefing areas.
  • Use and operation of all Hydrogen Sulfide monitoring systems.
  • Emergency response procedures, corrective action, and shutdown procedures.
  • Effects of Hydrogen Sulfide on the components of the Hydrogen Sulfide handling system.
  • The importance of drilling fluid treating plans prior to encountering Hydrogen Sulfide.

After completion of this course, you should be able to understand:

  • Working safely with Hydrogen Sulphide (H2S) – What to do and not to do.
  • How Hydrogen Sulphide forms and some important properties such as: flammability, toxicity, odor thresholds and vapor density.
  • Protection against H2Susing equipment such as respirators, rescue packs and gas monitors.
  • Precautions to take to ensure your safety when entering an area which may contain H2S vapors.
  • Rescue and first aid as it applies to H2S exposure.
  • How to revive victims that have inhaled H2Susing artificial respiration and CPR.
What is H2S?

H2S Safety training gets its name from the substance that it is designed to educate about: hydrogen sulfide gas (known commonly by its chemical formula of H2S). Hydrogen sulfide gas is interesting in that it is a necessary part of the human body, and is produced and used in trace quantities for a variety of things on a physiological level. Despite this usefulness in extremely low quantities, breathing in H2S can quickly turn this innocuous gas, with its trademark “rotten egg” smell, into a lethal poison. At high concentrations the gas is considered a “broad-spectrum” poison, which means that it has a number of negative effects on the human body, but one of the strongest is on the nervous system. On a cellular level, the gas can inhibit cellular respiration, and has a similar toxicity level to cyanide or carbon monoxide.

Hydrogen Sulfide or sour gas (H2S) is a flammable, colorless gas that is toxic at extremely low concentrations. It is heavier than air, and may accumulate in low-lying areas. It smells like “rotten eggs” at low concentrations and causes you to quickly lose your sense of smell. Many areas where the gas is found have been identified, but pockets of the gas can occur anywhere.

Iron sulfide is a byproduct of many production operations and may spontaneously combust with air. Flaring operations associated with H2S production will generate Sulfur Dioxide (S02), another toxic gas.

Active monitoring for hydrogen sulfide gas and good planning and training programs for workers are the best ways to prevent injury and death.

For students who may be exposed to the highly toxic gas Hydrogen Sulfide at the workplace, Training on the subject of Hydrogen Sulfide, or H2S, is essential for all oil and gas workers who could be exposed to H2S during the course of their work activities.

This training helps fulfill the training requirements of OSHA 29 CFR 1910 and 1926, ANSI Z390.1, Accepted Practices for Hydrogen Sulfide (H2S) Training Programs, and other regulatory standards.

Keep in mind that while this course provides information on the hazards of the gas, as well as ways to prevent and respond to exposure, you may require additional training in the use of company specific protective equipment and procedures. Training in equipment use and procedures should be provided by your employer and specific to your worksite.

H2S Safety training Consist of Folloiwng Units & Topics:

Hydrogen Sulphide: It’s a Killer Gas

  • Introduction to H2S
  • Properties of H2S
  • H2S Health Hazards

Hazard Detection & Exposure Limits: How much is too much?

  • Hazard Detection
  • How H2S is measured?
  • Worker Exposure Limits & Corresponding Health Effects
  • Signs & Symptoms of Acute Toxicity
  • Signs and Symptoms of Chronic Toxicity

Hydrogen Sulphide in the Oil & Gas Industry

  • Locations of H2S (some examples)
  • Perfect Conditions for a H2S Release
  • Locations of H2S Leaks (some examples)
  • Activities that Contribute to a Release
  • Common Leak Locations

Personal Protective Measures

  • Personal Protective Equipment

Contingency Plans & Rescue Response including First Aid

  • Contingency Plans & Emergency Response
  • Emergency Response Strategy
  • Unresponsive Worker Rescue Techniques
  • Rescue Breathing
  • CPR
  • Requesting Emergency Medical Services

Safe Job Procedures

  • Safe Job Procedures
  • Employer Responsibilities
  • Workers Responsibilities
  • Worksite Awareness
The Final exam consists of 20 questions randomly selected from a Sallaybus. A 70% score or better is required to pass each exam. Students who do not pass the exam the first time may retake the exam as many times as necessary in order to pass.

Completion of required components of H2S training you will earn you an H2S Safety training certificate.

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