ASTM F3678-23

1.1This specification covers the general requirements for the 245/70R19.5 136/134M radial truck standard reference test tire SW. The tire covered by this specification is primarily for use as a reference tire for braking traction and snow traction but may also be used for other evaluations that require a reference tire.

1.2This specification provides a 19.5 rim diameter code standard truck tire design and construction, standard dimensions, and specifies the conditions of storage.

1.3The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.

1.4This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.