➠ Final stage of the PHA process

➠ Performed during the detail design of the project or modification

➠ Designed to identify hazards and operability problems

➠ Performed using one or more methods:

➧ “What-If”

➧ HAZOP – Hazard and Operability Study

➧ Failure Modes and Effects Analysis

➧ Procedural PHA

➧ EN 1050 Annex A Checklist (Risk Assessing Machines)

➧ Most common method is HAZOP / What If