Electronic components - Reliability - Reference conditions for failure rates and stress models for conversion (IEC 61709:1996); German version EN 61709:1998— 42 стр.
Industrial-process measurement and control - Evaluation of system properties for the purpose of system assessment - Part 5: Assessment of system dependability (IEC 61069-5:1994); German version EN 61069-5:1995— 19 стр.