What is a SIL Determination Study?
A SIL Determination study is a form of risk assessment, required to determine whether there are any SIL requirements for SIFs. This involves determining the necessary risk reduction required to meet the tolerable risk for specific hazardous scenarios. This typically involves:
- Determining the potential frequency and consequence of an undesired event which causes a specific hazard;
- Determining the risk reduction provided by other protection measures and the resulting risk gap;
Assignment of SIL requirements for SIFs based on any resulting risk gaps in accordance with IEC 61508 (or sector specific standard e.g. IEC 61511).
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