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NEN EN IEC 61511-3 : 2017
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The latest, up-to-date edition.
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FUNCTIONAL SAFETY - SAFETY INSTRUMENTED SYSTEMS FOR THE PROCESS INDUSTRY SECTOR - PART 3: GUIDANCE FOR THE DETERMINATION OF THE REQUIRED SAFETY INTEGRITY LEVELS
12-01-2013
Gives information on: - the underlying concepts of risk and the relationship of risk to safety integrity; - the determination of tolerable risk; - a number of different methods that enable the safety integrity level (SIL) for the safety instrumented functions (SIF) to be determined; and - the impact of multiple safety systems on calculations determining the ability to achieve the desired risk reduction.
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