Toggle test 
 Principle
A toggle test device is moved along the direction of a forced movement in order to establish if there is a
potential entrapment hazard.
Apparatus
Toggle test device as shown in Figure 22 a) comprising of:
 toggle, as shown in Figure 22 b), made of polyamide (PA) (e.g. nylon) or polytetrafluoroethylene (PTFE),
both of which have been found to be suitable materials;
 chain, as shown in Figure 22 c);
 collar, detachable and with good slip;
 pole.