H2S/Respiratory Protection

Prerequisites: This course shall have no formal pre-requisite.

Course Length: 4 hours - Course length shall vary depending on the number of delegates. Total course time includes breaks.

Class Size: The maximum number of delegates that may be trained and tested per instructor shall be thirty–five (35) in the classroom session.

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Course Objective

  • Provide delegates with the sources, hazards and effects of Hydrogen Sulfide.
  • Provide delegates with warning, monitoring and detection systems for H2S.
  • Address Emergency Response Planning and H2S.
  • Provide delegates with the information needed to successfully wear respirators.
  • Provide delegates knowledge about the requirements of a respiratory protection program.
  • Address different types of respirators and their use.
  • Address inspection, maintenance, and storage requirements.
  • Delegates should be able to demonstrate knowledge during written examination.

Course Design

  • Power Point© / Lecture / Audio Video / Visual Aids
  • Demonstrations

Successful Course Completion

  • Requires a minimum score of 75% or better.
  • Grades shall be calculated by dividing the number of questions answered correctly by the total number of exam questions.
  • Delegates will have no more than thirty (30) minutes to complete the exam.
  • Successful completion of all practical sessions is mandatory

Course Content Summary

  • Classroom
  • Practical

Breaks: 10 minutes (approximately every hour)

Lunch: 1 Hour (if applicable)

Course Outline
About Hydrogen Sulfide (H2S)

  • Regulations
  • Key Terms
    • Auto Ignition
    • Flammable Limits
    • Permissible Exposure Limit (PEL)
    • Threshold Limit Value (TLV)
    • Short Term Exposure Limit (STEL)
    • Ceiling
    • Immediate Dangerous to Life and Health (IDLH)
    • National Institute of Occupational Safety and Health (NIOSH)
    • Parts Per Million (PPM)
  • What is H2S?
  • H2S vs. Other Notable Deadly Gases
  • H2S Common Names
  • Characteristics
  • Disposal method
  • H2S Limitations
  • Where is H2S found?
  • H2S Accumulation
  • H2S Reactivity

Effects of Hydrogen Sulfide (H2S)

  • Respiratory System Effects
  • Respiratory System
    • Diaphragm
    • Trachea
    • Bronchi
    • Alveoli

Hydrogen Sulfide (H2S) Exposure Limits

  • H2S Signs and Symptoms of Exposure
    • 0-50 PPM
    • 100-300 PPM
      • Olfactory Nerve Paralysis
    • 300-600 PPM
    • 600-1000 PPM
  • Phrenic Nerve Function
  • Variables Effecting Symptoms

Hydrogen Sulfide (H2S) Detection

  • Methods of Detection (advantages/disadvantages)
    • Colorimetric Tubes
    • Personal Electronic Detectors
    • Fixed Detectors

Respiratory Protection

  • Common Effects from Respirator Use
  • Why Wear a Respirator?
  • Breathing Air Composition
  • Employee Control Measures
    • Engineering Controls
    • Administrative Controls
    • Personal Protective Equipment
  • Employer Responsibilities
  • Respiratory Protection Program Requirements
  • Employee Responsibilities
  • Types of Respirators
    • Air Purifying
    • Supplied Air
      • Self-Contained Breathing Apparatus (SCBA)
      • Atmospheric Supplied Air
      • Cascade Systems
      • Escape Packs
  • Fit Testing
    • Quantitative
    • Qualitative
    • Medical Requirements
  • Respirator Usage
  • Respirator Inspection
  • Respirator Maintenance
  • Proper Donning/Doffing
  • Respirator Storage

Hydrogen Sulfide (H2S) Safety

  • Arriving at a H2S Location
  • Wind Direction Example
  • Affected Employee Requirements
  • When H2S is Present
  • Site Location Condition Flags
    • Green – Possible Danger
    • Yellow – Moderate Danger
    • Red – Extreme Danger
  • Other Deadly Gases Associated with H2S
    • Carbon Dioxide (CO2)
    • Sulfur Dioxide (SO2)
  • Regular Drills
  • Rescue

Practical Session
Practical shall verify that the delegate has acquired the following skills:

  • Demonstrate satisfactory operation of personal detection equipment
  • Demonstrate proper wearing of detector.
  • Explain how to respond to an alarm.
  • Select the proper respiratory protection equipment.
  • Perform inspection of respiratory protection equipment.
  • Explain the process for conducting a user seal check.
  • Properly store equipment and PPE.

Additionally, employers commonly include a Respirator Fit test or Pulmonary Function test as a
preparatory step prior to deployment of a worker.

Training Center Provided Material

  • Course Materials

Delegate Requirements

  • None

Reference Material / Documents
BSEE 30 CFR 250.490
OSHA 29 CFR 1910.134
ANSI/ASSE Z390.1—2017 Standard

  • Course ID #: MA034


May 24 2024


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