PHAs at Identical Plants: Why Aren't They the Same?

摘要

There is a common misunderstanding about the nature of HazOps and other process hazard analyses, that they are objective studies. That is, that different teams, working at different times and different places, but looking at the same process, will get the same results. In fact, HazOps are not objective. Their virtue is not in their absolute objectivity, but in the discipline they impose on a review team and how they document the relative subjectivity of the team.