Safety Instrumented Functions - October 2018

Date From: 25 October 2018
Date To: 26 October 2018
Location: United Kingdom
Description: Develop a broad understanding of SIFs and their management
Event Type: IChemE Course
Venue: IChemE, Rugby, UK
Organiser: IChemE
Contact Name: Courses department
Contact Phone: +44 (0)1788 534496
Contact Email:

Book Event


Many facilities use Safety Instrumented Functions (SIFs), designed to reduce the likelihood of a hazardous event and hence maintain the ALARP status. SIFs are generally designed and operated in conformance with IEC 61508/ IEC 61511. The codes address SIF design, selection and ongoing management in terms of a lifecycle.

This two-day course has been developed to provide education in the implementation of the SIF lifecycle and includes a number of syndicated exercises.

Learning outcomes

  • the principles of the SIF lifecycle
  • how to identify hazardous events with special focus on HAZOP
  • how to determine the SIL (Safety Integrity Level) rating for a SIF, using both risk graphs and LOPA
  • how the SIL is verified
  • the ongoing management of SIFs, through operation, maintenance, modification and decommissioning  

Who will benefit

Anyone who would like to develop a broad understanding of SIFs and how they are managed, especially technical/process safety specialists.

Course outline

  • introduction and objectives
  • the SIF lifecycle
  • determination of the need for SIFs
  • determination of the SIL rating for SIFs
  • how the SIL is verified


IChemE member: £850+ VAT
Non-member: £1000 + VAT

Course presenter

Nigel Bowker BSc(Eng), ACGI, MBA, C Eng, FIChemE

After graduating from Imperial College in 1976 with a degree in chemical engineering, Nigel worked as a process engineer for two firms of design contractors (Stone and Webster and Davy Powergas) and later worked for Shell Expro.

In 1986, he joined BP where he worked for the next 22 years. His career with BP included exploration and field development, production operations offshore (in Forties) and onshore (in the Forties Pipeline System), internal audit and health, safety and environment. His final role was as HS&E Manager in supply chain management for the North Sea.

After taking early retirement from BP, Nigel set up his own consultancy. He has provided a range of services to clients including process engineering, audit, process safety and occupational safety. He now specializes in chairing HAZIDs and HAZOPs and is an accredited HAZOP chairman with BP.

Nigel is a fellow of the Institution of Chemical Engineers and is a former chairman of the IChemE’s Aberdeen Member Group.

14 hours CPD Duration for CPD recording purposes: up to 14 hours.

If you are recording mandatory CPD you should refer to your own regulator’s requirements as recognition of CPD hours may vary.

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IChemE is a registered charity in England & Wales (214379), and a charity registered in Scotland (SC 039661).