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10-1. Specifications
Tire related term
Tread separation
Treadwear indicators (TWI)
Wheel-holding fixture
Table 1—Occupant loading and distribution for vehicle normal load for various desig-
(1)
nated seating capacities
Designated seating capaci-
ty, Number of occupants
2 through 4
5 through 10
11 through 15
16 through 20
736
Meaning
Pulling away of the tread from the tire car-
cass
The projections within the principal grooves
designed to give a visual indication of the
degrees of wear of the tread
The fixture used to hold the wheel and tire
assembly securely during testing
Vehicle normal load, Num-
ber of occupants
2
3
5
7
Occupant distribution in a
normally loaded vehicle
2 in front
2 in front, 1 in second seat
2 in front, 1 in second seat, 1
in third seat, 1 in fourth seat
2 in front, 2 in second seat,
2 in third seat, 1 in fourth
seat
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