AS IEC 61511.3:2018
Functional Safety — Safety instrumented systems for the process industry sector, Part 3: Guidance for the determination of the required safety integrity levels

Standard No.

AS IEC 61511.3:2018

Release Date

2018

Published By

Standard Association of Australia （SAA）

Latest

AS IEC 61511.3:2018

Scope

The objective of this Standard is to provide information on - (a) the underlying concepts of risk and the relationship of risk to safety integrity (see Clause A.4); (b) the determination of tolerable risk (see Annex K); (c) a number of different methods that enable the safety integrity level (SIL) for the safety instrumented functions (SIF) to be determined (see Annexes B through K); and (d) the impact of multiple safety systems on calculations determining the ability to achieve the desired risk reduction (see Annex J).

AS IEC 61511.3:2018 history

• 2018 AS IEC 61511.3:2018 Functional Safety — Safety instrumented systems for the process industry sector, Part 3: Guidance for the determination of the required safety integrity levels
• 0000 AS IEC 61511.3:2004(R2015)