1 Scope
This European Standard specifies test methods and requirements for spindle and fastening elements, operating torques, permissible free play and safety, free
angular movement and misalignment, durability, static strength and corrosion resistance
for sprung and unsprung lever handles, knobs for doors, push pads and similar devices
in combination with backplates or roses operating latches.
This European Standard is applicable only to lever handles and knobs that operate
a latch or a lock and other devices.
It specifies four categories of use according to frequency and other conditions of
use.