4.1 Determine the required safety integrity level for a safety-instrumented function.

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Unit PSM702: Risk Based Process Safety 

Qualifi Level 7 International Diploma in Process Safety Management

Unit code:H/618/7617
Level: 7

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Unit Aim
This unit aims to provide learners with the knowledge of risk-based process safety and the various elements comprising risk-based process design. It also assesses learners’ knowledge of Hazop methods and quantification of risk measures.

Learning Outcomes, Assessment Criteria


Learning Outcomes: When awarded credit for this unit, a learner can:


Assessment Criteria: Assessment of this learning outcome will require a learner to demonstrate that they can:


Apply HAZOP methods to process safety incidents.


Analyse the characteristics of the four pillars and 20 elements of risk-based process safety (RBPS) and their interaction.


Evaluate the way in which bow tie analysis can reduce process safety risks


Analyse the characteristics of the Swiss Cheese Incident Causation Model


Develop an approach to perform Process Failure Mode and Effects Analysis that is fit for purpose


Quantify risk analysis measures in process safety industries.


Analyse Accident & Incident Investigation techniques


Account for the different levels of analysis in incident investigation using an incident investigation triangle


Evaluate the widely used process safety metrics in any process industry


Evaluate the operational considerations of process safety systems by analysing Mechanical and Asset Integrity, Layer of Protection Analysis (LOPA) and Piping and Instrumentation diagram.


Analyse the significance and role of Piping and Instrumentation Diagrams and the potential consequences of not maintaining their currency


Analyse the layers of protection for process related hazards


Evaluate the seven core attributes that are characteristics of an effective independent protection layer or IPL


Analyse the phases of MI program development


Evaluate the challenges in implementing Asset Integrity for process industries


Develop a workflow diagram for Asset Management Process with MI considerations that is fit for purpose


Evaluate the operational readiness of process safety systems by analysing Safety Integrity Levels, Emergency Relief Systems, Pre-Startup review and Hot work permits.


Determine the required safety integrity level for a safety-instrumented function.


Determine the risk reduction factor (RRF) for a hazard that occurs every ten years, causing a major release of toxic fumes to occur once in 100 years.


Analyse elements of emergency relief system design with an emphasis on DIERS methodology.


Evaluate the challenges in developing and maintaining operating procedures


Analyse the purpose of Pre -startup Safety Review (PSSR) in process industries and the role of training in the effective implementation of Pre-Startup Safety Review procedures


Evaluate the role of an effective hot work programme as part of an overall PSM system


Evaluate the concept of the conduct of operations in process industries


Analyse the metrics that could be used to monitor the conduct of operations in PSM

Indicative Content

  • Risk Based Process Safety, 20 elements of RBPS design (LO1)
  • HAZOP methods, Bow Tie Analysis, Swiss Cheese Incident Causation Model, Failure Mode and Effects Analysis (LO2)
  • Piping and Instrumentation diagram (LO3)
  • Layer Of Protection Analysis (LOPA) (LO4)
  • Safety Integrity Levels (SIL) (LO5)
  • Mechanical Integrity program for process safety systems (LO6)
  • Emergency Relief Systems, DIERS methodology (LO7)
  • Operating Procedures (LO8)
  • Pre-start up Safety/-Operational Readiness Review, training impact (LO9)
  • Hot work permits framework (LO10)
  • Conduct of Operations in Process Safety Management (LO11)
  • Accident & Incident Investigation techniques (LO12)
  • Asset Integrity of Process Safety Systems, Key Performance Indicators (LO13)
  • Quantify risk analysis measures (LO14)

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