Process Safety & Functional Safety

Strengthen Process Safety and Functional Risk Management

Identify hazards, quantify risk, and implement protection strategies that meet IEC 61511 and industry safety standards - reducing operational risk and protecting people, assets, and the environment.
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The Challenge

Process and functional safety programs often struggle with incomplete hazard identification, protection layers that are poorly documented or inadequately verified, and SIL determinations that were completed once and never revisited. As facilities age, process conditions change, and standards evolve, safety cases become outdated — creating compliance gaps and unquantified risk exposure. Without structured, ongoing safety management, the gap between documented protection and actual risk grows silently.

Service Components

What We Offer

A comprehensive suite of process safety and functional safety services - from hazard identification through protection layer verification - designed to deliver a defensible, standards-aligned safety case for your operations.

01

Hazard Identification & Risk Assessment

  • HAZOP studies (P&ID and operational review)
  • What-if analysis and checklist-based hazard reviews
  • Consequence modeling and severity classification
  • Risk matrix development and hazard documentation

02

Bow-Tie Risk Modeling & LOPA

  • Bow-tie barrier analysis and threat/consequence mapping
  • Layer of Protection Analysis (LOPA)
  • Independent Protection Layer (IPL) identification and crediting
  • Risk reduction target setting and gap analysis

03

SIL Determination & Verification

  • SIL determination per IEC 61511 / IEC 61508
  • Safety Instrumented Function (SIF) definition
  • SIL verification — PFD calculation and architecture assessment
  • Proof test interval optimization

04

Functional Safety Lifecycle Implementation

  • Functional safety management plan development
  • Safety Requirements Specification (SRS) development
  • SIS design review and functional safety assessment
  • Competency audits and safety lifecycle documentation

Our Methodology

How We Deliver Process Safety Programs

A structured, standards-aligned delivery model - from hazard identification through verification and documentation - designed to produce a safety case that is both defensible and practically implemented.

Why Methodology Matters

Process safety programs fail when HAZOP studies gather dust and SIL determinations are never revalidated. Our approach builds live, maintained safety documentation - not point-in-time compliance artifacts.

100%

IEC 61511 / API RP 14C Aligned

4-10 Weeks

Study to Report

Ongoing

Revalidation Support Available

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Phase 1

Scope Definition & Documentation Review

We review P&IDs, process descriptions, operating procedures, and existing safety studies. Scope boundaries are defined, and gaps in existing documentation are identified before the study begins.

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Phase 2

HAZOP / Hazard Identification Study

Facilitated HAZOP sessions are conducted with your operations and engineering teams. Deviations, causes, consequences, and safeguards are systematically identified and recorded in a structured HAZOP report.

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Phase 3

Risk Evaluation & Protection Layer Analysis

Identified hazards are risk-ranked using your site risk matrix. LOPA is applied to scenarios requiring quantitative risk reduction verification - identifying IPLs and confirming whether risk targets are met.

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Phase 4

SIL Determination & Safety Requirements Specification

SIL targets are determined for safety instrumented functions. SRS documents are developed specifying the functional and integrity requirements for each SIF, forming the basis for design and verification.

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Phase 5

SIL Verification & Lifecycle Documentation

PFD calculations are performed for each SIF to verify that the installed architecture meets the required SIL target. Functional safety lifecycle documentation is completed, and proof test intervals are established.

Business Value

What You Gain

Measurable safety and business outcomes - from reduced risk exposure and regulatory confidence to improved protection strategy and operational clarity.
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Better Hazard Visibility

Structured HAZOP and bow-tie analysis replaces informal hazard awareness with a documented, defensible picture of your process risks.

Risk Transparency
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Improved Protection Strategy

LOPA and SIL determination ensure protection layers are correctly identified, credited, and verified — eliminating over-reliance on unqualified safeguards.

Protection Integrity
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Reduced Operational Risk

A maintained safety case with verified SIL performance gives confidence that your safety systems will perform on demand - reducing unquantified risk exposure.

Operational Risk
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Standards Alignment & Compliance Confidence

IEC 61511-aligned documentation and lifecycle records support regulatory inspections, safety case reviews, and management of change processes with confidence.

Compliance Confidence

Need to strengthen your process safety case or implement a functional safety program?

Whether you're facing a regulatory review or building capability from scratch, our team can assess your current position and deliver a practical path forward.

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Ready to Build a Results-Driven Process Safety & Functional Safety Program?

Whether you're implementing a process safety program for the first time, revalidating an existing safety case, or building a functional safety management system, AsInt brings the technical expertise, standards knowledge, and structured delivery model to protect your people, assets, and license to operate.

    Request a Demo