Process Hazard Analysis (PHA) Process Hazard Analysis (PHA)

What to Expect:

IRTC offers a Process Hazard Analysis. This includes inspecting for OSHA/EPA compliance, evaluation of possible safety and health effects, analysis of Engineering and Administrative controls.   


  1. Walk-through the entire facility with the PHA team looking for safety concerns with an emphasis on the ammonia refrigeration system.
  2. Perform an on-site What-if/Checklist PHA for your Ammonia Refrigeration System. This will comply with the Five-Year Re-certification requirements of OSHA’s Process Safety Management and EPA’s Risk Management programs.
  3. Evaluate the range of possible safety and health effects on facility employees from failure of the ammonia system equipment or controls.
  4. Analyze the Engineering and Administrative controls applicable to the hazards and determine the consequences of failure of the controls.  

  1. Evaluate External Events such as hurricanes, tornadoes, flooding, fire, snow, etc. to determine the impact these events could have on the system and recommend appropriate engineering and administrative controls. 
  2. Evaluate Facility Siting, Human Factors, and Emergency Action/Response Plan to determine their impact on the safety of the system and recommend appropriate engineering and administrative controls.
  3. Provide a digital report of findingss and recommendations to address safety concers identified during the PHA.
  4. Provide follow-up consultation to discuss the findings of the inspection, along with next steps to correct any deficiencies. 

Scope of services to be performed or supervised by a trained engineer knowledgeable in PHA methodologies.

OSHA EPA