What is the LOPA method?
Evaluation of the required SIL level of Safety Instrumented Functions (SIF) – SIL level allocation
Practical sheet REF: FIC0542 V1
What is the LOPA method?
Evaluation of the required SIL level of Safety Instrumented Functions (SIF) – SIL level allocation

Author : Olivier IDDIR

Publication date: July 10, 2014, Review date: November 14, 2016 | Lire en français

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3. What is the LOPA method?

3.1 Principle

Applying the LOPA method (see LOPA method for hazard studies [FIC 0538] ) to define the required SIL is similar to using the criticality matrix.

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The first step is to assess the criticality of the scenario (i.e. to evaluate its probability and severity)...

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