GOST R IEC 61511-1-2018 Functional safety. Safety instrumented systems for the process industry sector. Part 1. Terms, definitions and technical requirements
1970GOST R IEC 61511-1-2018 Functional safety. Safety instrumented systems for the process industry sector. Part 1. Terms, definitions and technical requirements
2011GOST R IEC 61511-1-2011 Functional safety. Safety instrumented systems for the process industry proceses. Part 1. Terms, definitions and technical requirements