Functional Safety

Process Hazard Analysis (PHA) Facilitation

The main objective of a Process Hazards Analysis (PHA) is to identify potential hazards posed by the process and associated equipment. The PHA is the first step in the functional safety lifecycle. This first step is critical, as adequate risk reduction measures cannot be implemented for hazards that are not identified or not identified correctly. exida has extensive experience leading PHAs using techniques such as HAZOP, LOPA, What-If, What-If/Checklist, HAZID, SIS, SIL, combined HAZOP & LOPA, combined HAZOP and SIL, as well as FMEA and FTAs.

exida also offers exSILentia® PHAx™, a Process Hazards Analysis (PHA) tool that can be used by engineering personnel in project, process, process safety, and control, as well as plant management, and operations personnel. PHAx™ guides users through the PHA process, effectively focusing the user on the task at hand, identifying hazards, hazardous events, and associated sequence of events, allowing the user to easily document the relevant and important facts for process hazards.

exSILentia® PHAx™ supports compliance with industry regulations (e.g. OSHA PSM, Seveso III Directive, SA OHSA, etc.) and best practices, forming the foundation of a robust Process Safety Management system, therefore demonstrating clear leadership in safety.

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