8.4 Lineal Abrasion—Table 2 shows the lineal distance of scratching abrasion developed using a 228.6-mm (9-in.) diameter wheel rotating for the specified number of revolutions. As the rubber wheel reduces in diameter the number of wheel revolutions shall be adjusted to equal the sliding distance of a new wheel (Table 2) or the reduced abrasion rate shall be taken into account by adjusting the volume loss produced by the worn wheel to the normalized volume loss of a new wheel. (See 10.2.)