PHA to LOPA: Part I
Thursday, August 25, 2011Viewed 4870 times
Parts I and II of this article provide a framework for when it is appropriate to make the transition from qualitative analysis to more quantitative during the hazard review work process. It further illustrates that LOPA can be used as part of what is considered more qualitative analysis as well as for more fully quantitative analysis. Figure 1 outlines the overall work process with key decision points that comprise the analysis portion of the safety lifecycle.
When process hazard review teams perform a HAZOP, the main objective is to identify hazards and start the process of determining whether the risk presented is tolerable or not. Hazards are identified by consideration of deviations from expected operation.…
Layer of Protection Analysis (LOPA) • (0) Comments • Permalink