1. International Electrotechnical Commission, IEC 61508, Functional Safety of Electrical/Electronic/Programmable Electronic Safety Related Systems – Part 3: Software requirements, 65A/550/FDIS, IEC (2009)
2. International Electrotechnical Commission, IEC 60880, Nuclear power plants – Instrumentation and control systems important to safety – Software aspects for computer-based systems performing category A functions, IEC (2006)
3. International Electrotechnical Commission, IEC 61226, Nuclear power plants – Instrumentation and control systems important to safety – Classification of instrumentation and control functions, IEC (2005)
4. International Electrotechnical Commission, IEC 61513, Nuclear power plants – Instrumentation and control for systems important to safety – General requirements for systems, IEC (2001)
5. International Electrotechnical Commission, IEC 62138, Nuclear power plants - Instrumentation and control important for safety - Software aspects for computer-based systems performing category B or C functions, IEC (2004)