ISO 10542-1:2012
[Current]
Technical systems and aids for disabled or handicapped persons — Wheelchair tiedown and occupant-restraint systems — Part 1: Requirements and test methods for all systems
...375
ATD front of head x
head
650
x
wc
is the forward horizontal distance relative to the sled platform between the point-P target on the TWC at time t
0
and the point P
target at the time of peak wheelchair excursion...