ASTM F1881-98

1.1 This specification defines a method for determining bat performance by measuring the Coefficient of Restitution (COR) of the bat-ball collision using a ball with a known COR then deriving a bat performance factor.

1.2 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.