GOST R IEC 61511-2-2018 Functional safety. Safety instrumented systems for the process industry sector. Part 2. Guidelines for the application of IEC 61511-1
1970GOST R IEC 61511-2-2018 Functional safety. Safety instrumented systems for the process industry sector. Part 2. Guidelines for the application of IEC 61511-1
2011GOST R IEC 61511-2-2011 Functional safety. Safety instrumented systems for the industrial processes. Part 2. Guidelines for the application of IEC 61511-1