IEC 61511-3:2003 Withdrawn

Functional safety - Safety instrumented systems for the process industry sector - Part 3: Guidance for the determination of the required safety integrity levels


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provides information on the underlying concepts of risk, the relationship of risk to safety integrity, the determination of tolerable risk, a number of different methods that enable the safety integrity levels for the safety instrumented functions to be determined. It has the status of a horizontal standard in accordance with IEC Guide 108.

Additional information

Publication typeInternational Standard
Publication date2003-03-18
Available language(s)English, English/French, Spanish
TC/SCTC 65/SC 65A - System aspectsrss
ICS25.040.01 - Industrial automation systems in general
File size1578 KB

The following test report forms are related:

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