3 Criteria for Picking LOPA Scenarios

“The easiest way to solve a problem is to pick an easy one.”  — Franklin P. Jones We love having choices. We hate making choices. What if we pick wrong? There is no shortage of people ready to tell us. It is always helpful to have criteria for choosing, or to be honest, to justify [...]

Breaking Up Is Hard to Do: HazOp Nodes

“Come on, baby, let’s start anew, ‘cause breaking up is hard to do.”  — Neil Sedaka Before a HazOp team ever assembles, the facilitator has some important tasks to complete: get agreement with management on the scope of the review, identify the boundaries of the study, and break the process up into nodes.  And breaking [...]

By |2020-01-09T16:34:36+00:00January 9th, 2020|PHA, Procedures, Process Safety Management|1 Comment

We’re Not Wizards

“But how they can be charged with negligence because they were not wizards, appellant’s brief does not make clear.”  — Osmond K. Fraenkel, successfully arguing before the New York Supreme Court, 1935 In a world where companies tout “Zero Incidents,” not as an aspirational definition of perfect safety, but as a measurable and achievable target, [...]

Seven Questions: The Essence of HazOps

“A prudent question is one-half of wisdom.”  — Francis Bacon There are about a gazillion “best” ways to do HazOps. What they all have in common, however, is that they use worksheets that are set up as tables that look at deviations in a node. For each deviation, a HazOp team considers “Causes”, “Consequences”, “Safeguards”, [...]

By |2019-08-29T14:38:07+00:00August 29th, 2019|PHA, Process Safety, Process Safety Management|0 Comments

Why Different PHA Teams Get Different Results

“Differences challenge assumptions.”  Anne Wilson Schaef There is a common misunderstanding about the nature of Process Hazard Analyses (PHAs):  that they are objective studies. By objective, we mean that different teams, working at different times and at different places, but looking at the same process, will get the same results. There is a perception that [...]

By |2019-02-07T16:08:56+00:00February 7th, 2019|PHA, Process Safety Management|0 Comments

Your Next Blockbuster Adventure: The PHA

“Archeology is the search for fact, not truth. If it’s truth you’re looking for, Dr. Tyree’s philosophy class is right down the hall.” — Indiana Jones, from The Last Crusade A process hazard analysis (PHA) is not a trivial exercise.  The search for process hazards takes time and effort, and it pulls a team of [...]

By |2019-01-31T15:53:17+00:00January 31st, 2019|PHA, Process Safety, Process Safety Management|0 Comments