The six main hazard categories are biological hazard, chemical hazard, physical hazard, safety hazard, ergonomic hazard and psychological hazard.Continue Reading

The HAZOP is undertaken using a systematic and highly structured approach to examine the process and engineering intentions of the design.Continue Reading

HAZOP stands for Hazard and Operability.Continue Reading

Risk Assessment Register is a document that records all the organizations identified risks, the likelihood and consequences of a risk occurring. Additionally, the actions required to reduce the risks, and the focal person (who will be responsible to manage the risks) will also be captured in the risk assessment register.Continue Reading

The bowtie approach is used to understand and communicate key risk control measures at a whole range of facilities. Bow-Ties are a pictorial representation of the relationship between potential threats, preventive/control barriers in place and the ultimate consequences associated with each MAH.Continue Reading

Understand the objectives of the hazard identification, the system/scope of the facility identified, etc. Agreed on the facility area and the breakdown of node (if any) Use guidewords to allow systematic brainstorming. Select a guidewords to help identify the hazard and start the discussion Determine the cause of hazard Determine the consequences Identify if any...Continue Reading

HAZOP for Continuous Operations HAZOP for Batch Operations Procedural HAZOP (i.e. Start-Up) Control HAZOP (CHAZOP) Electrical HAZOP (EHAZOP)/ Electrical Systems Safe Operability Review (SAFOP)Continue Reading

Identified nodes through: 1) Design Intent 2) Significant change of process conditions 3) Equipment/SystemContinue Reading

HAZOP can be done at any stage of a project as long as sufficient information is available such as piping and instrumentation diagram (P&ID). HAZOP can be revisited when there’s a design change impacting the P&IDs.Continue Reading

The bow tie risk assessment is a diagram method that can be used to analyse and demonstrate causal relationships in high-risk scenarios. The diagram is shaped like a bow-tie, creating a clear differentiation between proactive and reactive risk management.Continue Reading