What-If • HAZOP • FMEA • LOPA • QRA
Process Hazard Analysis (PHA)
What-If•HAZOP•FMEA•LOPA•QRA
In today's complex industrial operations, organisations must proactively identify and control process safety risks to prevent fires, explosions, toxic releases, and major accidents. Process Hazard Analysis (PHA) using recognised international methodologies—such as What-If, HAZOP, FMEA, LOPA, and Quantitative Risk Assessment (QRA)—helps businesses understand how failures can occur, evaluate the effectiveness of safeguards, comply with legal and industry requirements, and protect people, assets, and the environment.
Sicher provides specialised PHA consulting and digital solutions that enable companies across Thailand and the Asia-Pacific region to plan, facilitate, document, and maintain robust process hazard analyses throughout the lifecycle of their plants and processes.
Core Consulting Activities for Process Hazard Analysis
01
Pre-study data and PSI review – Verification of Process Safety Information (PSI) and preparation of P&IDs, cause-and-effect diagrams, and design data required for PHA.
02
Process Hazard Analysis using What-If, HAZOP, and/or FMEA – Application of the most suitable method, or a combination of methods, to identify hazards, analyse deviations and failure modes, and prioritise risk reduction and improvement actions.
03
Risk escalation from HAZOP to LOPA and QRA – Enhance qualitative HAZOP results with semi-quantitative LOPA to evaluate risk, independent protection layers (IPLs), and required risk reduction or SIL targets, and, where needed, extend to full QRA to quantitatively model fire, explosion, and toxic release scenarios and determine individual and societal risk.
04
Action follow-up and revalidation – Tracking of PHA recommendations, verification of closure, and periodic revalidation in line with regulatory and corporate requirements.