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.
Railway applications - Track - Railbound construction and maintenance machines - Part 1: Technical requirements for running; German version EN 14033-1:2017— 121 стр.