Process Hazard Analysis

Use this template to pHA worksheet for [chemical_process] using HAZOP-style review.

Template Metadata

Process Scope

Define process unit, chemicals, operating modes, boundaries, and documents reviewed.

Notes

[Add context, assumptions, exceptions, evidence links, screenshots, calculations, or reviewer comments.]

Team and Method

List facilitator, SMEs, operations, engineering, EHS, and the PHA method used.

Notes

[Add context, assumptions, exceptions, evidence links, screenshots, calculations, or reviewer comments.]

Node Description

Describe each process node, design intent, parameters, and normal operating ranges.

Notes

[Add context, assumptions, exceptions, evidence links, screenshots, calculations, or reviewer comments.]

Hazard Scenarios

Document deviations, causes, consequences, severity, likelihood, and risk ranking.

Notes

[Add context, assumptions, exceptions, evidence links, screenshots, calculations, or reviewer comments.]

Safeguards

Identify existing engineered, procedural, alarm, interlock, and mitigation safeguards.

Notes

[Add context, assumptions, exceptions, evidence links, screenshots, calculations, or reviewer comments.]

Recommendations

List risk reduction recommendations with priority, owner, and target completion date.

Notes

[Add context, assumptions, exceptions, evidence links, screenshots, calculations, or reviewer comments.]

Action Tracking

Define closure evidence, management approval, and revalidation timing. Use tables suitable for HAZOP or What-If analysis.

Notes

[Add context, assumptions, exceptions, evidence links, screenshots, calculations, or reviewer comments.]

Review and Signoff

Document review conclusions, approvals, unresolved items, and next review date.