Safety of machinery - Ergonomics requirements for the design of displays and control actuators - Part 3: Control actuators; German version EN 894-3:2000+A1:2008— 42 стр.
Technical product documentation - Lettering - Part 5: CAD-Lettering of the Latin alphabet, numerals and marks (ISO 3098-5:1997); German version EN ISO 3098-5:1997— 65 стр.