ISA SAF INST SYS VERF
Safety Instrumented Systems Verification - Practical Probabilistic Calculations
|Publication Date:||1 January 2005|
The determination of Safety Integrity Level (SIL) for safety instrumented functions (SIF) is a basic concept of performance based safety standards. The safety integrity or performance of a SIF must increase with higher SIL levels. There are a number of factors that influence the performance of any safety instrumented function.