significance And Use:

scope:

1.1 This practice covers the requirements for a 67.23-in. (1.707-m) diameter laboratory roadwheel for durability and endurance testing of tires under controlled operating and environmental conditions.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements, see Section 7 and Note 1.