Safety of machinery - Ergonomics requirements for the design of displays and control actuators - Part 4: Location and arrangement of displays and control actuators; German version FprEN 894-4:2009— 49 стр.
Safety of machinery - Ergonomics requirements for the design of displays and control actuators - Part 4: Location and arrangement of displays and control actuators; German version EN 894-4:2010— 49 стр.