Page 8 - 2016-v.1-Part 3(EN)
P. 8
TBIS 4210-3:2016
In all strength tests, specimens shall be in the fully finished condition.
4.1.4 Accuracy tolerances of test conditions for brake tests and strength tests
Unless stated otherwise, accuracy tolerances based on the nominal values shall be as follows.
Forces and torques 0/+5 %
Masses and weights ±1 %
Dimensions ±1 mm
Angles ±1°
Time duration ±5 s
Temperatures ±2 °C
Pressures ±5 %
4.2 Front mudguard test methods
4.2.1 Front mudguard with stays test methods
4.2.1.1 Stage 1: Test method — Tangential obstruction
Insert a 12-mm-diameter steel rod between the spokes, in contact with the rim and below the front
mudguard stays as shown in Figure 1, and rotate the wheel to apply a tangentially upward force of
160 N, against the front mudguard stays; maintain this force for 1 min.
Remove the rod and determine whether or not the wheel is free to rotate and whether or not any damage
to the front mudguard adversely affects wheel rotation (blocking of the wheel) and the steering.
Figure 1 — Front mudguard — Tangential obstruction test
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