1. IEC 61508, Functional safety of electrical / electronic / programmable electronic safety related systems, parts 1 –7. Geneva: International Electrotechnical Commission; 2010.
2. IEC 61511, Functional safety: safety instrumented systems for the process industry sector, parts 1–3. Geneva: International Electrotechnical Commission; 2003.
3. IEC 62425, Railway applications communication, signalling and processing systems safety related electronic systems for signalling. Geneva: International Electrotechnical Commission; 2007.
4. ISO/DIS 26262, Road vehicles –functional safety, Parts 1–10. Geneva: International Organization for Standardisation; 2009.
5. Extension of ISA TR84.00.02 PFD equations to KooN architectures;Oliveira;Reliab Eng Syst Saf,2010