ASTM F3460-21 - Standard Test Method for Seam Measurement Procedure for Baseballs and Softballs

1.1 This test method is intended to standardize a method of measuring the seam height of baseballs and softballs.

1.2 This standard is established to provide a single, repeatable, and uniform test method.

1.3 This test method is for a ball that is intended for use in the game of baseball or softball.

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

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

1.6 This 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.