Revalidating Process Hazard Analysis: Getting Real Value

Revalidating Process Hazard Analysis: Getting Real Value

From Process Safety with Trish & Traci by chemicalprocessingsafety

February 10, 2026 · 24 min · Episode 116

About this episode

Trish Kerin and Traci Purdum discuss effective revalidations of process hazard analyses and the importance of methodology and team selection.

In this episode, Trish Kerin and Traci Purdum explore process hazard analysis revalidations and how to make them more effective. Kerin explains the difference between redoing a PHA and revalidating existing assessments, introducing the Delta HAZOP methodology that focuses on creeping change in facilities. She discusses triggers for revalidation, from legislative requirements to significant operational changes, and emphasizes the importance of selecting the right team and methodology. Kerin highlights how AI and machine learning can help gather data and identify trends, while stressing that human expertise remains essential. The key takeaway: approach revalidations with rigor and discipline, not as tick-box exercises, to truly identify hazards and manage risk effectively.

People in this episode

Hosts: Trish Kerin, Traci Purdum

Topics covered

  • process hazard analysis
  • revalidation
  • risk management
  • AI in safety
  • team selection
  • methodology

Keywords

  • process hazard analysis
  • revalidation
  • Delta HAZOP
  • AI
  • risk management
  • operational changes
  • human expertise

Mentioned in this episode

Organizations: Delta HAZOP

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