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514
9-1. Specifications
COROLLA HV_U
*
: Table 1 -Occupant loading and distribution for vehicle normal load for var-
ious designated seating capacities
Sidewall separation
The parting of the rubber compound from
the cord material in the sidewall
Snow tire
A tire that attains a traction index equal to
or greater than 110, compared to the
ASTM E-1136 Standard Reference Test
Tire, when using the snow traction test as
described in ASTM F-1805-00, Standard
Test Method for Single Wheel Driving Trac-
tion in a Straight Line on Snow-and
Ice-Covered Surfaces, and which is
marked with an Alpine Symbol ( ) on at
least one sidewall
Test rim
The rim on which a tire is fitted for testing,
and may be any rim listed as appropriate
for use with that tire
Tread
That portion of a tire that comes into con-
tact with the road
Tread rib
A tread section running circumferentially
around a tire
Tread separation
Pulling away of the tread from the tire car-
cass
Treadwear indicators (TWI)
The projections within the principal
grooves designed to give a visual indica-
tion of the degrees of wear of the tread
Wheel-holding fixture
The fixture used to hold the wheel and tire
assembly securely during testing
Tire related term Meaning
Designated seating
capacity, Number of
occupants
Vehicle normal load,
Number of occupants
Occupant distribution in
a normally loaded vehi-
cle
2 through 4 2 2 in front
5 through 10 3
2 in front, 1 in second
seat
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