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BOS 216:2012
P230.00
Wheel flaps fitted to motor vehicles — Specification
Description
“This Botswana standard specifies the requirements for wheel flaps fitted to motor vehicles and to articulated tractor units of gross vehicle mass or gross combination mass, respectively, exceeding 7.5 t, and to trailers of gross vehicle mass exceeding 3.5 t, for the purpose of providing other road users with some protection against stones, mud or other debris thrown up by the vehicle tyres. The specification covers
a)wheel flaps attached to conventional types of wheel guards, and
b)wheel flaps for rear wheels on single or multiple axles of motor vehicles and trailers when conventionalwheel guards are not fitted and the wheels are covered by the floor of the vehicle body.
NOTE General comments relating to the effects of aerodynamic styling on the reduction of spray generation are given in Annex A.
The specification does not apply to
1)the rearmost axles of an end-tipping semi-trailer of the scissors type, that pivot about the centre pointof the axle or the axle unit, and
2)the rear axle(s) of a truck tractor first registered before January 2001, where the semi-trailer isequipped with wheel flaps to guard the rear axle(s) of the truck tractor.”