HAZOP is a systematic team-based Process Hazard Analysis (PHA) technique. It is used to identify & analyze the consequences & risks arising from possible deviations from design and operational intent of a process. HAZOP can be used for continuous or batch processes. Also, it can be used during the design stages of a new process or project, for major process modifications and for periodic review of existing operations. can be adopted to evaluate written procedures.
Even though hazard identification is the key focus, operability problems should be identified to understand if they have the possibility to result in process hazards. HAZOP is applied to identify: