Hydrogen Sulphide (H2S) Safety

The OSHA Digital H2S Safety course provides essential awareness and practical knowledge for individuals who may work in environments where hydrogen sulphide gas is present. It is relevant to workers in the oil and gas, geothermal, petrochemical, and other industries where toxic gases may be encountered. The programme covers H2S properties and hazards, detection, respiratory protection, emergency procedures, rescue considerations, and safe working practices.

• Understand the physical and chemical properties of hydrogen sulphide.
• Recognize the hazards associated with H2S exposure.
• Understand the effects of H2S exposure on the human body.
• Learn how H2S can be detected in the workplace.
• Understand the importance of respiratory equipment fit testing.
• Identify locations and situations where H2S may be encountered.
• Understand respiratory protection and relevant practical considerations.
• Learn the basic operation of breathing apparatus compressors.
• Understand the operation and purpose of ventilation equipment such as bug blowers.
• Develop awareness of emergency preparedness and rescue procedures.
• Apply appropriate H2S safety precautions.

• Oil and gas professionals.
• Health and safety professionals.
• Supervisors.
• Technicians.
• Cleaning and maintenance personnel.
• Managers responsible for workplace safety.

After completing the training, participants should be able to explain and demonstrate their understanding of:

• The common sources and origins of hydrogen sulphide.
• Alternative names, properties, and characteristics of H2S.
• H2S exposure limits and relevant measurement considerations.
• Factors that may influence individual susceptibility to H2S exposure.
• Different types of H2S detection and respiratory equipment.
• Pre-use inspection requirements for personal detection devices and emergency breathing apparatus.
• Correct operation of personal H2S detection equipment.
• Appropriate actions to take when an H2S alarm activates.
• Correct use of escape breathing equipment, including masks and hoods.
• Safe connection of activated EBA equipment to a pressurised cascade breathing system.
• Safe disconnection and removal of EBA equipment from a pressurised cascade breathing system.

Learners can take the examination after studying the course material and completing the required module quizzes. The examination assesses knowledge of H2S safety through multiple-choice questions.

• The examination is open book and allows 2 hours.
• A minimum score of 70% is required to pass.
• Learners may retake the examination if they do not achieve the required score.
• A maximum of three examination attempts is allowed within a 10-hour period.
• After three unsuccessful attempts, learners must wait 24 hours before taking the examination again.
• Learners should review the course material during the waiting period.
• A passed examination cannot be retaken to improve the achieved score.
• No separate comprehensive programme examination is currently available. Learners must successfully complete all required course examinations.