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3. BS/IEC 61508:2010, Functional Safety of Electrical/Electronic/Programmable Electronic Safety-Related Systems, International Electrotechnical Commission Std.
4. BS/IEC 61511:2003, Functional safety - Safety instrumented systems for the process industry sector, International Electrotechnical Commission Std.
5. ISO 26262:2011, Road vehicles - Functional safety, International Organization for Standardization Std. (2011)