Process Hazard Analysis is the backbone of the safety lifecycle: HAZOP finds the hazards, LOPA judges whether existing layers are enough, and SIL work makes the instrumented layers real. Cerasus leads all three with a TÜV-certified HAZOP Leader and IEC 61511 Functional Safety Engineer.
HAZOP is a structured, guideword-driven review of every node of a design, recording causes, consequences, safeguards and actions. LOPA takes the higher-consequence scenarios and quantifies whether independent protection layers reduce risk to the corporate tolerable level. SIL determination sets the required integrity of each safety instrumented function; SIL verification proves the designed hardware, architecture and proof-test interval achieve it.
Together these form the front end of the IEC 61511 lifecycle and are what auditors, insurers and regulators ask to see first.
Certified leadership, scribing, node definition and session management for greenfield, revamp and cyclic (5-year) reviews.
Scenario screening, IPL credit, initiating-event frequencies and risk-gap calculation against your risk matrix.
Risk graph, LOPA or risk-matrix methods; SIF register with target SIL and RRF.
PFDavg, architecture (HFT) and SFF checks; proof-test intervals; per IEC 61508/61511.
SRS per IEC 61511 Clause 10 for each SIF.
Action register with owners, due dates and evidence of closure.
Node the P&IDs, assemble the team, agree risk matrix and guidewords.
Facilitate, record and rank; capture safeguards and actions.
Screen scenarios, credit IPLs, determine target SIL, verify designs.
Issue PHA report, SIF register, SRS and action register.
IEC 61882HAZOP application guideIEC 61511 (all parts)Functional safety — process industry sectorIEC 61508Functional safety of E/E/PE systemsISA-84.00.01US adoption of IEC 61511CCPS LOPA (2001) & IPL GuidelinesLayer of protection analysis methodsISO 17776Major-accident hazard management, offshoreOSHA 29 CFR 1910.119(e)Process hazard analysis requirementsISO 31000Risk management principlesSend a short brief — plant, service of interest and what you need to achieve — and a Cerasus engineer will respond with a proposed scope and next steps.
Prefer email or phone? sales@cerasus.ai · +974 5506 2743