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Significance and Use
This test method offers a laboratory means to measure the inertial properties of bats, specifically weight, balance point, center of percussion, and MOI, in support of other test methods including the ASTM standards referenced in this document.
Use of this test method can provide sports governing bodies the means to establish rules regarding the physical properties of bats, specifically MOI.
1.1 Method for determining the moment of inertia (MOI), the center of percussion (COP), and the balance point (BP) of baseball and softball bats. These physical properties are used in Test Method F1881, Test Method F1890, and Test Methods F2219.
1.2 The MOI, COP, and BP are measured in the laboratory on test equipment meeting the requirements defined in this test method.
1.3 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.
1.4 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
F1881 Test Method for Measuring Baseball Bat Performance Factor
F1890 Test Method for Measuring Softball Bat Performance Factor
F2219 Test Methods for Measuring High-Speed Bat Performance
ASTM F2398-11, Standard Test Method for Measuring Moment of Inertia and Center of Percussion of a Baseball or Softball Bat, ASTM International, West Conshohocken, PA, 2011, www.astm.orgBack to Top