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HAZOP - Hazards and Operability Analysis |
What is a HAZOP?
HAZOP is a highly structured hazards identification tool. It is extremely basic in its approach and makes practically no assumptions.
When should you use HAZOP?
You can use HAZOP at practically any stage. HAZOP methodology is so widely used that almost any PHA is referred to as a HAZOP. With new designs, HAZOP’s should be carried out as late as possible in order for it to be as complete as possible. With an existing facility, the HAZOP can be used at any time.
You can also use HAZOP for analyzing operating instructions, procedures and in batch operations.
HAZOP Methodology
1. Collect applicable documents and drawings.
2. Break facility into manageable sections (Nodes).
3. Prepare list of Parameters and Operations to be examined.
4. For each Node create Deviations.
5. List and record causes for each Deviation.
6. List and record Consequences for each Cause.
7. List and record Safeguards or Controls that may prevent either the Cause or the Consequence.
8. List any future Actions or recommendations you think should be implemented.
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