IEC 61511-1:2003
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Functional safety - Safety instrumented systems for the process industry sector - Part 1: Framework, definitions, system, hardware and software requirements
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31-12-2021
30-01-2003
gives requirements for the specification, design, installation, operation and maintenance of a safety instrumented system, so that it can be confidently entrusted to place and/or maintain the process in a safe state. This standard has been developed as a process sector implementation of IEC 61508.The contents of the corrigendum of November 2004 have been included in this copy.It has the status of a horizontal standard in accordance with IEC Guide 108.
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