Safety of machinery - Safety-related parts of control systems - Part 100: Guide on the use and application of EN 954-1:1996; German version CR 954-100:1999— 6 стр.
General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025:2005); German and English version EN ISO/IEC 17025:2005, Corrigenda to DIN EN ISO/IEC 17025:2005-08; German and English version EN ISO/IEC 17025:2005/AC:2006— 4 стр.