Figure 2 : Guidewords and procedure variables lists which can lead to deviations list ( Courtesy of IGL Services )
procedures , or the implementation of additional safeguards .
8 . Generate HAZOP Report The HAZOP study leader will prepare the HAZOP report with all of the suggestions that come up during the workshop after summarising the HAZOP study discussion in the HAZOP study worksheet . In order to maintain the process or system ' s safety and operability throughout its lifespan , the HAZOP technique should not be viewed as a one-time event but instead , as an on-going procedure that should be reviewed and updated on an on-going basis . Additionally , the HAZOP report can be a useful resource for any upcoming adjustments or system expansions .
Limitations of HAZOP
Despite being widely used , the HAZOP study has recently been criticised . Some experts point to the study ' s limitations , saying it may not be effective in identifying all potential hazards and may not always provide enough information to prevent accidents .
One of the main criticisms of the HAZOP study is that it relies on human expertise and experience to identify hazards . While this can work in many cases , it ' s not perfect . In some cases , a team may overlook significant hazards simply because they do not have enough experience or expertise in a particular area .
Another criticism is that it may not always provide sufficient information to prevent accidents from occurring . The study is primarily designed to identify hazards and risks , but it does not necessarily provide specific recommendations for addressing those hazards . This means additional studies and analyses may be required to develop appropriate risk mitigation measures .
Another limitation is that it may not effectively identify all potential hazards . This is because the study is based on the assumption that all potential hazards are already known and can be identified through a review of existing documentation . However , new hazards may emerge during the course of operations or as a result of changing conditions , and the study may not capture these .
Likewise , limitations can be caused by problems that occurred during the HAZOP study . According to Alan Munn ( 2009 ), one problem from the recent HAZOP trend is inadequate information or details available during the HAZOP session .
21