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SIL & The Process Safety Lifecycle


To confirm Process Safety Compliance in your plant or address compliance issues in a new project, you will require a fundamental understanding of Safety Integrity Level (SIL); To achieve compliance SIL Achieved ≥ SIL Required.

What you can expect

To gain an understanding of

  • Undertaking a project using the Process Safety Lifecycle approach
  • The application of IEC 61508 & IEC 61511 Safety Standards
  • The process of determining the required Safety Integrity Levels (SIL)
  • Risk acceptability, targets and calibration
  • The risk graphs for SIL determination & LOPA SIS architectural expectations
  • The process of designing the safety integrity levels required of the safety control system
  • The concept of instrument failures & reliability
  • SIS design to meet integrity targets
  • How to validate the achieved SIL
  • An overview of quality assurance, validation, competence, functional safety assessments, process safety implications for operations and maintenance of SIS



Topics include:

Hazard Analysis – HAZOP’s

  • HAZOP’s – their current role in safety systems
  • Key outputs required from HAZOP’s
  • Techniques for a successful HAZOP

Safety Requirements Specification – LOPA

  • Layer of protection analysis(LOPA) explanation
  • Using HAZOP results
  • Arriving at Safety Requirements Specification(SRS)
  • Define the required SIL Level

Safety System Realisation

  • Safety Requirements Specification to actual design
  • Safety System architectures
  • Detailed design – Hardware & Software

Safety System Validation

  • Design stage validation
  • Installation validation techniques
  • Maintenance and management

Workshop and Case Studies

  • Tank Farm Installation - SIL 2 application
  • Buncefield Accident - What can we learn?
  • Reactor Safety Interlocks
  • Nitrogen purging - SIS
  • Agitator speed monitoring

Target group

This professional training course is most suited to Process Engineers, Chemical Engineers, Instrument/Electrical Engineers, Production Managers, EHS Managers, Project Engineers/Managers


A member of our Training Team

In-house Training

Order numbers 010023T
Duration 1 Day 9.00 - 17.00
Maximum number of delegates 10 (dependant on facilities)
Price £375 per person per day plus VAT
Further informations A minimum charge of 5 delegates is required, plus travel expenses and VAT. The price per person is as above.
Dates and registration
On request

Pilz Automation Ltd
Pilz House, Little Colliers Field
Corby, Northants, NN18 8TJ
United Kingdom

Telephone: +44 1536 460766
E-Mail: sales@pilz.co.uk