PROCESS HAZARD ANALYSIS.
Process Hazard Analysis
Process Hazard Analysis (PHA) is required by federal regulations such as OSHA Process Safety Management (PSM), EPA Risk Management Plan (RMP), and state regulations such as the California Accidental Release Prevention Program (CalARP) and Cal/OSHA GISO 5189.1.
PHA is one of the most critical elements of PSM. The goal of conducting a PHA is to identify the hazards associated with a process and associated equipment and evaluate risks to help prevent incidents so that the people and the environment are safe while maintaining business profitability. IEC 61511 and ISA 84 also requires the PHA as part of the functional safety lifecycle and plays a vital role in the determination of the risk reduction required of a safety instrumented function.
Hazard and Operability Study
The Hazard and Operability (HAZOP) Study, an accepted PHA technique developed in the 1960s by ICI, has become the technique of choice for many, due to how detailed and systematic the approach is for a well-defined process or operation, either green-field and existing. The methodology divides the process or operation into nodes and applies select deviations, generate credible causes for each deviation and develop the consequences, safeguards, and risk within each node.
PHA & LOPA Facilitation
Saltegra is experienced in PHA and LOPA having facilitated studies across a broad range of industries. Our sessions are detailed, engaging but succinct. Our approach follows the typical HAZOP/LOPA methodology; however, we also utilize the latest available innovative technologies and information from the industry, as well as strategies and techniques borrowed from other industries. This allows us to efficiently facilitate studies while reducing session times by as much as 30%.
With our experience, we have helped clients write PHA standards which include consequence development guidance for consistent studies across different sites.
Hazard and Operability (HAZOP) Study
What-if? / Checklist Review
Failure Mode and Effects Analysis (FMEA)
Layer of Protection Analysis (LOPA) / Safeguard Protection Analysis (SPA)
SIL Selection/Assignment as per ISA 84 / IEC 61511
PHA Preparation Support
Remove the busy work from your PSM group and let us handle the preparation. Saltegra's experience over the years of facilitating PHA and LOPA studies has allowed us to developed systems and techniques to efficiently get the deliverables ready for you.
Some companies use multiple facilitators for their PHAs, therefore the value of having us complete the preparation work allows for consistent preparation documentation based on your requirements. We will also work with the facilitator to ensure we capture their specific requirements.
We provide customized preparation based on your needs and internal requirements:
Node Design/Definition (by Saltegra)
Node Highlighting of the P&IDs (node defined by you or your facilitator)
Node List Preparation (includes P&IDs involved, equipment in use)
Equipment list with details from the P&ID
Cause identification for each deviation in each node
Safeguard/IPL list tailored to your documentation requirements