The HAZID sessions are commenced by an explanation of the intended goal for running the HAZID workshop. This is followed by an overview and description, by the designer, of the system to be considered, which must describe the purpose of a system and an outline of its intended operation.
The HAZID workshop thereafter becomes an open session and starts by examining the information in a logical and comprehensive manner, using checklist prompts.
The objectives of the HAZID study are:
The HAZID should apply the checklist prompts to the various elements within the study to discuss and characterise generic categories of hazard and, if appropriate, define more specific hazard classes. At least the following information should be recorded for each hazard or hazardous activity:
The same process is repeated for each appropriate hazard category.