Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities; Section 5: Ground vehicle installations (IEC 60721-3-5:1997); German version EN 60721-3-5:1997— 23 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.