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The hazard and operability (HAZOP) study is the most commonly used process hazard analysis (PHA) method in the world today. It is one of the techniques commonly accepted by regulators. The HAZOP method identifies deviations from design intent by applying guide words (no, more, less, as well as, part of, reverse, other than) to aspects of the design intention (such as flow, temperature, pressure, addition, reaction, etc.). A team of people then brainstorms causes of the deviations and identifies their consequences and safeguards that protect against them. Also, the team may identify improvements to reduce risk.

Some of the latest developments with the HAZOP method are described in these publications:

  • Analytical Methods in Process Safety Management and System Safety Engineering – Process Hazards Analysis, in Handbook of Loss Prevention Engineering, J. M. Haight (ed), Wiley-VCH, Weinheim, Germany, 2013.
  • A critique of the hazard and operability (HAZOP) study, Journal of Loss Prevention in the Process Industries, Volume 33, Pages 52-58, January 2015.
  • Chemical reactivity and hazard and operability (HAZOP) studies, Loss Prevention Bulletin, Issue 244, August, 2015.
  • Design intent for hazard and operability (HAZOP) studies, Process Safety Progress, Volume 35, Issue 1, pages 36–40, March 2016.
  • Guidelines for addressing limitations in the performance of HAZOP studies, Loss Prevention Bulletin, Issue 250, pages 21 - 24, August, 2016.

Primatech offers consulting services for HAZOP studies including facilitation, scribing, reviewing, and mentoring and coaching.

Primatech offers multiple training courses that provide instruction in different aspects of performing HAZOP studies including:

Primatech offers software products that assist in the use of the HAZOP method including:

  • PHAWorks® 
    • Used to record studies and manage the results.
  • Tracker
    • Used to track recommendations from studies.

Primacert offers certification of competency for HAZOP facilitators.

Primatech can assist you with all your needs for HAZOP studies. Please contact us for further information.