what is hazop
A hazard and operability study (or HAZOP) is a systematic, critical examination by a team of the engineering and operating intentions of a process to assess the hazard potential of mal-operation or mal-function of individual items of equipment and the consequential effects on the facility as a whole.
In a large process there will be many HAZOP meetings and the team may change as different specialists and possibly different members of the design team are brought in, but the Study Leader and Recorder will usually be fixed.