Our Functional Safety Services

Functional safety is a specialist technical topic that applies across multiple industry sectors, including major accident hazard sites in the process sector (COMAH/SEVESO III) such as chemical manufacture, petrochemicals, refining, offshore oil and gas and power generation.
eFunctionalSafety provides functional safety training and consulting services based upon many years of project experience in diverse industry sectors. If your goal is compliance with IEC 61508, IEC 61511, IEC 62061 or a related standard, then we can help.

We engage by supporting end users with HAZOP, CHAZOP, LOPA, SIL determination, safety requirements specifications and SIL verification, among others.

We're also a trusted provider of training to Original Equipment Manufacturers and suppliers of safety-related instrumentation, interfaces and final elements such as actuators and valves.

We supported a major new refinery project destined for Kuwait by providing the SIL study facilitator for three different units - Hydrogen Production Unit, Amine Regeneration Unit and Sulphur Recovery Unit. The project support was provided in phases, leading multi-discipline engineering teams of 15+ people in the SIL study workshops. Our deliverable was a SIL determination report for each unit, ready to be used by the project team in the creation of the safety requirements specification for the safety instrumented functions on the project.

Case Study #1
SIL study

We facilitated a team study for a major extension of a batch pharmaceutical process, using the Layer of Protection Analysis (LoPA) technique to analyze identified hazards and determine safety integrity levels (SIL). The project involved providing an amended LoPA procedure, as the end user had previously been using calibrated risk graph for earlier studies. Several stages of study were undertaken to analyze more than 40 hazardous scenarios, resulting in a unique LoPA worksheet for each scenario and a summary report of the findings.

Case Study #2

A Stage 4 / 5 Functional Safety Assessment (FSA), according to IEC 61511 FSA recommended stages, was required for a safety instrumented system undergoing upgrade on a chemical plant. We provided the lead assessor to scope, plan and deliver the assessment. Firstly, the existing system was assessed to check for any non-conformance issues with important aspects of operating and maintaining the SIS, including a review of proof test records. Following this, the SIS modification project was assessed for all stages including hazard assessment, LoPA, safety requirements and the design changes to hardware and software of the system. The FSA also witnessed physical validation testing prior to start-up.

Case Study #3

Explore our Safety Life-cycle Services

Training & Coaching

Functional Safety Planning and Project Management

Functional Safety Assessment and Audit - FSA

Hazard and Operability Studies - HAZOP

Control HAZOP - CHAZOP - Security CHAZOP

Layer of Protection Analysis - LoPA

Safety Requirements Specification

Device SIL Capability Assessment

SIL Verification of Safety Functions or Devices

Safety System Application Program Verification

Validation Planning and Support

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