Phase 1

Process Hazard & Risk Assessment


The purpose of the Process Hazard and Risk Assessment (PHRA) lifecycle phase is to determine all reasonably foreseeable hazards and hazardous events within the process and its associated equipment, which can impact on safety or the environment.

By identifying the foreseeable hazards within the process suitable protection layers can be identified and any residual risk reduction requirements can be identified where a safety instrumented system (SIS) maybe required to reduce risk criteria to a tolerable level ‘As Low as Reasonably Practicable’ (ALARP).

Providing a detailed record of the PHRA, which provides a clear foundation for a auditable trail if a SIS is required with clear defined hazards, severity and consequences that can be fed into the allocation of protection layers lifecycle phase.


Using recognised industrial methodologies such as Hazard and Operability Studies (HAZOP), facilitating a competent team and using their pre-defined risk criteria to assess the design/facility to the ultimate consequences identifying existing safeguards and where applicable where potential addition safeguard requirements are required.


ProSalus have a team of highly experienced facilitators and scribes to aid the client in an objective PHRA.