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Standard Test Method for Measuring the Coefficient of Restitution (COR) of Baseballs and Softballs
STANDARD published on 1.5.2014
Designation standards: ASTM F1887-14
Note: WITHDRAWN
Publication date standards: 1.5.2014
SKU: NS-51961
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
ball liveliness, ball resilience, baseball, coefficient of restitution, softball, ICS Number Code 97.220.40 (Outdoor and water sports equipment)
Significance and Use | ||||
5.1 The ball coefficient of restitution is a ball dynamic property of relative velocity change caused by impact with a rigid wall. 5.2 This test method is suitable for obtaining data in research and development, quality control, and classifying balls by liveliness. 5.3 Sports associations can use coefficient of restitution standards in specifications for official baseballs and softballs. 5.4 This same test procedure can be utilized at impact speeds other then that prescribed in this procedure and so noted in any reported test results. |
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1. Scope | ||||
1.1 This procedure is intended to standardize a method of measuring the coefficient of restitution (COR) of baseballs and softballs. 1.2 This procedure is established to provide a single, repeatable, and uniform test method. 1.3 This procedure is for a ball that is intended for use in the game of baseball or softball. 1.4 The test method is based on ball speed measurements before and after impact with either of two test surfaces: wood or metal. 1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.6 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. |
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2. Referenced Documents | ||||
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1.5.2014
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1.3.2011
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1.5.2010
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1.4.2011
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1.5.2010
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1.6.2013
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