F08.26 - Baseball and Softball Equipment

SIGNIFICANCE AND USE
4.1 These test methods offer a laboratory means to quantitatively compare the performance of softball and baseball bats.
SCOPE
1.1 A method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR) and deriving the bat performance factor (BPF). It is applicable to softball and baseball bats of any construction or material. The method provides a quantitative measure of bat dynamic performance that may be used for comparison purposes.  
1.2 The BBCOR and BPF are calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this method.  
1.3 Bat performance is found in this standard assuming the bat is pivoted.  
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are 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.

SIGNIFICANCE AND USE
4.1 These test methods offer a laboratory means to quantitatively compare the performance of baseball and softball bats.  
4.2 Use of these test methods can provide quantitative metrics of bat performance.
SCOPE
1.1 A method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the collision efficiency (ea), and calculating a batted-ball speed (BBS). It is applicable to baseball and softball bats of any construction or material. The test methods provide quantitative measures of bat dynamic performance that may be used for comparison purposes.  
1.2 The BBCOR and BBS are each calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this standard.  
1.3 Bat performance is found in this standard assuming the bat is unconstrained.  
1.4 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.  
1.5 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.

SIGNIFICANCE AND USE
5.1 The static compression-displacement of a baseball or softball is a mechanical property which can correlate to dynamic properties.  
5.2 This test method is suitable for obtaining data in research and development, quality control, and classifying balls by the compression-displacement.  
5.3 Sports associations can use compression-displacement standards in specifications for official baseballs and softballs standards in specifications for official baseballs and softballs for purposes of consistency of performance.  
5.4 This same test procedure can be utilized with other compressive forces and the specified force is not necessarily the same as experienced in actual use.
SCOPE
1.1 This test method describes a comparative measurement method for baseballs and softballs as defined by a static compression displacement test.  
1.2 This test method is based on a slow rate force-displacement measurement.  
1.3 This procedure is for baseballs and softballs meeting standards established by the sports' governing bodies.
Note 1: Since the compression-displacement of baseballs and softballs can influence the performance characteristics, this test provides a simple method to compare and categorize such balls based on force levels in a standardized compression-displacement test.  
1.4 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.  
1.5 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.

SIGNIFICANCE AND USE
5.1 1 The ball dynamic stiffness is a measure of a ball’s hardness. Its measurement is conducted to represent bat-ball impact forces. It is normalized by the ball weight and speed to minimize the influence of manufacturing and test variations from the measure.  
5.2 The cylindrical coefficient of restitution is a ball property of relative velocity change caused by impact with a cylindrical surface.  
5.3 This test method compares the performance of baseballs and softballs after impact with a cylindrical test surface.  
5.4 Sports associations can use DS and CCOR measurements in specifications for official baseballs and softballs.
SCOPE
1.1 This procedure describes a method of measuring the dynamic stiffness (DS) and cylindrical coefficient of restitution (CCOR) of baseballs and softballs providing similar impact forces and ball deformation as are observed in a bat-ball collision.  
1.2 This procedure is for a ball that is intended for the game of baseball or softball.  
1.3 The test method is based on ball speed measurements before and after impact with a cylindrical test surface and the impact force between the ball and impacted surface.  
1.4 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.  
1.5 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.

SIGNIFICANCE AND USE
4.1 The ball seam height of a baseball or softball is a measurement that can correlate to ball grip and aerodynamic properties.  
4.2 This test method is suitable for obtaining data in research and development, quality control, and classifying balls by seam type.  
4.3 Sports associations can use seam height standards in specifications for official baseballs and softballs.  
4.4 Users of this test method may be testing individual baseballs or softballs or entire production lots of baseballs or softballs. If a single ball or small sample of balls are being measured for individual properties, multiple measurements should be performed on the balls. If a large sample of balls is being measured for the overall seam characteristics of the large sample, then an individual seam height measurement may be recorded for a ball. Thus, number of measurement points (m) on any one ball is at the discretion of the test sponsor of this test method.
SCOPE
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.

SIGNIFICANCE AND USE
3.1 This test method offers a means to compare the barrel compression of softball and baseball bats. This test is not intended for wood or solid bats.
SCOPE
1.1 This test method describes a comparative measurement method for determining the compression force of softball and baseball bat barrels as defined by a static compression displacement test.  
1.2 This standard is not intended to define the performance of softball or baseball bats but to determine the intrinsic barrel compression of a specific bat.  
1.3 This standard can be used to compare the relative barrel compression force of bats using a relatively slow, non-impact loading rate.  
1.4 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.  
1.5 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.

SIGNIFICANCE AND USE
4.1 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.  
4.2 Use of this test method can provide sports governing bodies the means to establish rules regarding the physical properties of bats, specifically MOI.
SCOPE
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 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.

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.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7 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.

SIGNIFICANCE AND USE
4.1 These test methods offer a laboratory means to quantitatively compare the performance of softball and baseball bats.
SCOPE
1.1 A method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR) and deriving the bat performance factor (BPF). It is applicable to softball and baseball bats of any construction or material. The method provides a quantitative measure of bat dynamic performance that may be used for comparison purposes.  
1.2 The BBCOR and BPF are calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this method.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 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.

SIGNIFICANCE AND USE
4.1 These test methods offer a laboratory means to quantitatively compare the performance of baseball and softball bats.  
4.2 Use of these test methods can provide quantitative metrics of bat performance.
SCOPE
1.1 A method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the ball exit speed ratio (BESR), and calculating a batted-ball speed (BBS). It is applicable to baseball and softball bats of any construction or material. The test methods provide quantitative measures of bat dynamic performance that may be used for comparison purposes.  
1.2 The BBCOR, BESR, and BBS are each calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 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.

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.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7 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.

SIGNIFICANCE AND USE
4.1 These test methods offer a laboratory means to quantitatively compare the performance of softball and baseball bats.
SCOPE
1.1 A method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR) and deriving the bat performance factor (BPF). It is applicable to softball and baseball bats of any construction or material. The method provides a quantitative measure of bat dynamic performance that may be used for comparison purposes.  
1.2 The BBCOR and BPF are calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this method.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 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.

SIGNIFICANCE AND USE
4.1 These test methods offer a laboratory means to quantitatively compare the performance of softball and baseball bats.
SCOPE
1.1 A method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR) and deriving the bat performance factor (BPF). It is applicable to softball and baseball bats of any construction or material. The method provides a quantitative measure of bat dynamic performance that may be used for comparison purposes.  
1.2 The BBCOR and BPF are calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this method.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 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.

SIGNIFICANCE AND USE
5.1 The static compression-displacement of a baseball or softball is a mechanical property which can correlate to dynamic properties.  
5.2 This test method is suitable for obtaining data in research and development, quality control, and classifying balls by the compression-displacement.  
5.3 Sports associations can use compression-displacement standards in specifications for official baseballs and softballs standards in specifications for official baseballs and softballs for purposes of consistency of performance.  
5.4 This same test procedure can be utilized with other compressive forces and the specified force is not necessarily the same as experienced in actual use.
SCOPE
1.1 This test method describes a comparative measurement method for baseballs and softballs as defined by a static compression displacement test.  
1.2 This test method is based on a slow rate force-displacement measurement.  
1.3 This procedure is for baseballs and softballs meeting standards established by the sports' governing bodies.
Note 1: Since the compression-displacement of baseballs and softballs can influence the performance characteristics, this test provides a simple method to compare and categorize such balls based on force levels in a standardized compression-displacement test.  
1.4 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.  
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.

SIGNIFICANCE AND USE
3.1 This test method offers a means to compare the barrel compression of softball and baseball bats. This test is not intended for wood or solid bats.
SCOPE
1.1 This test method describes a comparative measurement method for determining the compression force of softball and baseball bat barrels as defined by a static compression displacement test.  
1.2 This standard is not intended to define the performance of softball or baseball bats but to determine the intrinsic barrel compression of a specific bat.  
1.3 This standard can be used to compare the relative barrel compression force of bats using a relatively slow, non-impact loading rate.  
1.4 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.  
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.

SIGNIFICANCE AND USE
4.1 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.  
4.2 Use of this test method can provide sports governing bodies the means to establish rules regarding the physical properties of bats, specifically MOI.
SCOPE
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.

SIGNIFICANCE AND USE
3.1 This test method offers a means to compare the barrel compression of softball and baseball bats. This test is not intended for wood or solid bats.
SCOPE
1.1 This test method describes a comparative measurement method for determining the compression force of softball and baseball bat barrels as defined by a static compression displacement test.  
1.2 This standard is not intended to define the performance of softball or baseball bats but to determine the intrinsic barrel compression of a specific bat.  
1.3 This standard can be used to compare the relative barrel compression force of bats using a relatively slow, non-impact loading rate.  
1.4 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.  
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.

SIGNIFICANCE AND USE
4.1 These test methods offer a laboratory means to quantitatively compare the performance of baseball and softball bats.  
4.2 Use of these test methods can provide quantitative metrics of bat performance.
SCOPE
1.1 A method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the ball exit speed ratio (BESR), and calculating a batted-ball speed (BBS). It is applicable to baseball and softball bats of any construction or material. The test methods provide quantitative measures of bat dynamic performance that may be used for comparison purposes.  
1.2 The BBCOR, BESR, and BBS are each calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this standard.  
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 to determine the applicability of regulatory limitations prior to use.

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.
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.

SIGNIFICANCE AND USE
5.1 1 The ball dynamic stiffness is a measure of a ball’s hardness. Its measurement is conducted to represent bat-ball impact forces. It is normalized by the ball weight and speed to minimize the influence of manufacturing and test variations from the measure.  
5.2 The cylindrical coefficient of restitution is a ball property of relative velocity change caused by impact with a cylindrical surface.  
5.3 This test method compares the performance of baseballs and softballs after impact with a cylindrical test surface.  
5.4 Sports associations can use DS and CCOR measurements in specifications for official baseballs and softballs.
SCOPE
1.1 This procedure describes a method of measuring the dynamic stiffness (DS) and cylindrical coefficient of restitution (CCOR) of baseballs and softballs providing similar impact forces and ball deformation as are observed in a bat-ball collision.  
1.2 This procedure is for a ball that is intended for the game of baseball or softball.  
1.3 The test method is based on ball speed measurements before and after impact with a cylindrical test surface and the impact force between the ball and impacted surface.  
1.4 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.  
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.

SIGNIFICANCE AND USE
5.1 The static compression-displacement of a baseball or softball is a mechanical property which can correlate to dynamic properties.  
5.2 This test method is suitable for obtaining data in research and development, quality control, and classifying balls by the compression-displacement.  
5.3 Sports associations can use compression-displacement standards in specifications for official baseballs and softballs standards in specifications for official baseballs and softballs for purposes of consistency of performance.  
5.4 This same test procedure can be utilized with other compressive forces and the specified force is not necessarily the same as experienced in actual use.
SCOPE
1.1 This test method describes a comparative measurement method for baseballs and softballs as defined by a static compression displacement test.  
1.2 This test method is based on a slow rate force-displacement measurement.  
1.3 This procedure is for baseballs and softballs meeting standards established by the sports' governing bodies.Note 1—Since the compression-displacement of baseballs and softballs can influence the performance characteristics, this test provides a simple method to compare and categorize such balls based on force levels in a standardized compression-displacement test.  
1.4 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.  
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.

SIGNIFICANCE AND USE
4.1 These test methods offer a laboratory means to quantitatively compare the performance of baseball and softball bats.  
4.2 Use of these test methods can provide quantitative metrics of bat performance.
SCOPE
1.1 A method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the ball exit speed ratio (BESR), and calculating a batted-ball speed (BBS). It is applicable to baseball and softball bats of any construction or material. The test methods provide quantitative measures of bat dynamic performance that may be used for comparison purposes.  
1.2 The BBCOR, BESR, and BBS are each calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this standard.  
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 to determine the applicability of regulatory limitations prior to use.

SIGNIFICANCE AND USE
This test method offers a laboratory means to compare the performance of a softball bat.
Use of this test method can provide sports governing bodies a means to compare calculated BBS and other physical properties of bats.
SCOPE
1.1 This test method covers a method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the bat performance factor (BPF) and calculating a batted ball speed (BBS). It is applicable to softball bats of any construction or material. The method provides a quantitative measure of bat dynamic performance that may be used for comparison purposes.
1.2 The BBCOR, BPF, and BBS are each calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this specification.
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 requirements prior to use.

SIGNIFICANCE AND USE
These test methods offer a laboratory measure of the performance of baseball and softball bats.
Use of these test methods can provide quantitative metrics of bat performance.
SCOPE
1.1 A method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the ball exit speed ratio (BESR), and calculating a batted-ball speed (BBS). It is applicable to baseball and softball bats of any construction or material. The test methods provide quantitative measures of bat dynamic performance that may be used for comparison purposes.
1.2 The BBCOR, BESR, and BBS are each calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this standard.
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 to determine the applicability of regulatory limitations prior to use.

SIGNIFICANCE AND USE
1 The ball dynamic stiffness is a measure of a ball’s hardness. Its measurement is conducted to represent bat-ball impact forces. It is normalized by the ball weight and speed to minimize the influence of manufacturing and test variations from the measure.
The cylindrical coefficient of restitution is a ball property of relative velocity change caused by impact with a cylindrical surface.
This test method compares the performance of baseballs and softballs after impact with a cylindrical test surface.
Sports associations can use DS and CCOR measurements in specifications for official baseballs and softballs.
SCOPE
1.1 This procedure describes a method of measuring the dynamic stiffness (DS) and cylindrical coefficient of restitution (CCOR) of baseballs and softballs providing similar impact forces and ball deformation as are observed in a bat-ball collision.
1.2 This procedure is for a ball that is intended for the game of baseball or softball.
1.3 The test method is based on ball speed measurements before and after impact with a cylindrical test surface and the impact force between the ball and impacted surface.
1.4 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.
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.

SIGNIFICANCE AND USE
This test method offers a means to compare the barrel compression of softball and baseball bats. This test is not intended for wood or solid bats.
SCOPE
1.1 This test method describes a comparative measurement method for determining the compression force of softball and baseball bat barrels as defined by a static compression displacement test.
1.2 This standard is not intended to define the performance of softball or baseball bats but to determine the intrinsic barrel compression of a specific bat.
1.3 This standard can be used to compare the relative barrel compression force of bats using a relatively slow, non-impact loading rate.
1.4 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.
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.

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.
SCOPE
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.

SIGNIFICANCE AND USE
This test method offers a means to compare the barrel compression of softball and baseball bats. This test is not intended for wood or solid bats.
This standard is not intended to define performance of softball or baseball bats but to determine the intrinsic barrel compression of a specific bat.
SCOPE
1.1 This test method describes a comparative measurement method for determining the compression of softball and baseball bat barrels as defined by a static compression displacement test.
1.2 This standard can be used to compare the relative barrel compression of bats using a relatively slow, non-impact, loading rate.
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.

SIGNIFICANCE AND USE
1 The ball dynamic stiffness is a measure of a ball’s hardness. Its measurement is conducted to represent bat-ball impact forces. It is normalized by the ball weight and speed to minimize the influence of manufacturing and test variations from the measure.
The cylindrical coefficient of restitution is a ball property of relative velocity change caused by impact with a cylindrical surface.
This test method compares the performance of baseballs and softballs after impact with a cylindrical test surface.
Sports associations can use DS and CCOR measurements in specifications for official baseballs and softballs.
SCOPE
1.1 This procedure describes a method of measuring the dynamic stiffness (DS) and cylindrical coefficient of restitution (CCOR) of baseballs and softballs providing similar impact forces and ball deformation as are observed in a bat-ball collision.
1.2 This procedure is for a ball that is intended for the game of baseball or softball.
1.3 The test method is based on ball speed measurements before and after impact with a cylindrical test surface and the impact force between the ball and impacted surface.
1.4 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.
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.

SIGNIFICANCE AND USE
These test methods offer a laboratory measure of the performance of baseball and softball bats.
Use of these test methods can provide quantitative metrics of bat performance.
SCOPE
1.1 A method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the ball exit speed ratio (BESR), and calculating a batted-ball speed (BBS). It is applicable to baseball and softball bats of any construction or material. The test methods provide quantitative measures of bat dynamic performance that may be used for comparison purposes.
1.2 The BBCOR, BESR, and BBS are each calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this standard.
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 to determine the applicability of regulatory limitations prior to use.

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.
SCOPE
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 the 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.

SIGNIFICANCE AND USE
This test method offers a laboratory means to compare the performance of a softball bat.
Use of this test method can provide sports governing bodies a means to compare calculated BBS and other physical properties of bats.
SCOPE
1.1 This test method covers a method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the bat performance factor (BPF) and calculating a batted ball speed (BBS). It is applicable to softball bats of any construction or material. The method provides a quantitative measure of bat dynamic performance that may be used for comparison purposes.
1.2 The BBCOR, BPF, and BBS are each calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this specification.
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 requirements prior to use.

SIGNIFICANCE AND USE
This test method offers a laboratory means to compare the relative performances of baseball bats.
Use of this test method can provide sports governing bodies a means to compare calculated batted-ball speed and other physical properties of the bats.
SCOPE
1.1 This test method defines a method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the bat performance factor (BPF), and calculating batted-ball speed (BBS). It is applicable to baseball bats of any construction or material. The test method provides a quantitative measure of bat dynamic performance that may be used for comparison purposes.  
1.2 The BBCOR, BPF, and BBS are each calculated from measurements taken 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 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 to determine the applicability of regulatory limitations prior to use.

SIGNIFICANCE AND USE
The static compression-displacement of a baseball or softball is a mechanical property which can correlate to dynamic properties.
This test method is suitable for obtaining data in research and development, quality control, and classifying balls by the compression-displacement.
Sports associations can use compression-displacement standards in specifications for official baseballs and softballs standards in specifications for official baseballs and softballs for purposes of consistency of performance.
This same test procedure can be utilized with other compressive forces and the specified force is not necessarily the same as experienced in actual use.
SCOPE
1.1 This test method describes a comparative measurement method for baseballs and softballs as defined by a static compression displacement test.
1.2 This test method is based on a slow rate force-displacement measurement.
1.3 This procedure is for baseballs and softballs meeting standards established by the sports' governing bodies.
Note 1—Since the compression-displacement of baseballs and softballs can influence the performance characteristics, this test provides a simple method to compare and categorize such balls based on force levels in a standardized compression-displacement test.
1.4 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.
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.

SIGNIFICANCE AND USE
The ball coefficient of restitution is a ball dynamic property of relative velocity change caused by impact with a rigid wall.
This test method is suitable for obtaining data in research and development, quality control, and classifying balls by liveliness.
Sports associations can use coefficient of restitution standards in specifications for official baseballs and softballs.
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.
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.

SIGNIFICANCE AND USE
These test methods offer a laboratory measure of the performance of baseball and softball bats.
Use of these test methods can provide quantitative batted-ball speed and metrics of bat performance.
SCOPE
1.1 These test methods define a method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the ball exit speed ratio (BESR), and calculating a batted-ball speed (BBS). It is applicable to baseball and softball bats of any construction or material. The test methods provide quantitative measures of bat dynamic performance that may be used for comparison purposes.
1.2 The BBCOR, BESR, and BBS are each calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this specification.
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 to determine the applicability of regulatory limitations prior to use.

SIGNIFICANCE AND USE
These test methods offer a laboratory measure of the performance of baseball and softball bats.
Use of these test methods can provide quantitative batted-ball speed and metrics of bat performance.
SCOPE
1.1 These test methods define a method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the ball exit speed ratio (BESR), and calculating a batted-ball speed (BBS). It is applicable to baseball and softball bats of any construction or material. The test methods provide quantitative measures of bat dynamic performance that may be used for comparison purposes.
1.2 The BBCOR, BESR, and BBS are each calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this specification.
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.
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 to determine the applicability of regulatory limitations prior to use.

SCOPE
1.1 This specification defines a method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the bat performance factor (BPF), deriving the ball exit speed ratio (BESR), and calculating a batted-ball speed (BBS). It is applicable to baseball and softball bats of any construction or material. The method provides a quantitative measure of bat dynamic performance that may be used for comparison purposes.
1.2 The BBCOR, BPF, BESR, and BBS are each calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this specification.
1.3 The values stated in English units are to be regarded as the 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.

SIGNIFICANCE AND USE
This test method offers a laboratory means to compare the performance of a softball bat.
Use of this test method can provide sports governing bodies a means to compare calculated BBS and other physical properties of bats.
SCOPE
1.1 This test method covers a method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the bat performance factor (BPF) and calculating a batted ball speed (BBS). It is applicable to softball bats of any construction or material. The method provides a quantitative measure of bat dynamic performance that may be used for comparison purposes.
1.2 The BBCOR, BPF, and BBS are each calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this specification.
1.3 The values stated in inch-pound units are to be regarded as the 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 requirements prior to use.

SIGNIFICANCE AND USE
This test method offers a laboratory means to compare the relative performances of baseball bats.
Use of this test method can provide sports governing bodies a means to compare calculated batted-ball speed and other physical properties of the bats.
SCOPE
1.1 This test method defines a method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the bat performance factor (BPF), and calculating batted-ball speed (BBS). It is applicable to baseball bats of any construction or material. The test method provides a quantitative measure of bat dynamic performance that may be used for comparison purposes.
1.2 The BBCOR, BPF, and BBS are each calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this test method.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
This standard does not purport to address all 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 to determine the applicability of regulatory limitations prior to use.

SCOPE
1.1 This specification defines a method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the bat performance factor (BPF), deriving the ball exit speed ratio (BESR), and calculating a batted-ball speed (BBS). It is applicable to baseball and softball bats of any construction or material. The method provides a quantitative measure of bat dynamic performance that may be used for comparison purposes.
1.2 The BBCOR, BPF, BESR, and BBS are each calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this specification.
1.3 The values stated in English units are to be regarded as the 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.

SCOPE
1.1 This test method covers a method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the bat performance factor (BPF) and calculating a batted ball speed (BBS). It is applicable to softball bats of any construction or material. The method provides a quantitative measure of bat dynamic performance that may be used for comparison purposes.
1.2 The BBCOR, BPF, and BBS are each calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this specification.
1.3 The values stated in inch-pound units are to be regarded as the 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 requirements prior to use.

SCOPE
1.1 This specification defines a method for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the bat performance factor (BPF), and calculating batted-ball speed (BBS). It is applicable to baseball bats of any construction or material. The method provides a quantitative measure of bat dynamic performance that may be used for comparison purposes.
1.2 The BBCOR, BPF, and BBS are each calculated from measurements taken 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 the standard. The values given in parentheses are for information only.
1.4 This standard does not purport to address all 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 to determine the applicability of regulatory limitations prior to use.

SCOPE
1.1 This test method covers a method for determining the moment of inertia (MOI) and balance point (BP) of baseball and softball bats. These physical properties are used in calculations in other key ASTM standards.
1.2 The MOI 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 the 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.

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.
SCOPE
1.1 This test method covers a method for determining the moment of inertia (MOI) and balance point (BP) of baseball and softball bats. These physical properties are used in calculations in other key ASTM standards.
1.2 The MOI 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 the 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.

SIGNIFICANCE AND USE
The ball coefficient of restitution is a ball dynamic property of relative velocity change caused by impact with a rigid wall.
This test method is suitable for obtaining data in research and development, quality control, and classifying balls by liveliness.
Sports associations can use coefficient of restitution standards in specifications for official baseballs and softballs.
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.
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 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.

SIGNIFICANCE AND USE
The static compression-displacement of a baseball or softball is a mechanical property which can correlate to dynamic properties.
This test method is suitable for obtaining data in research and development, quality control, and classifying balls by the compression-displacement.
Sports associations can use compression-displacement standards in specifications for official baseballs and softballs standards in specifications for official baseballs and softballs for purposes of consistency of performance.
This same test procedure can be utilized with other compressive forces and the specified force is not necessarily the same as experienced in actual use.
SCOPE
1.1 This test method describes a comparative measurement method for baseballs and softballs as defined by a static compression displacement test.
1.2 This test method is based on a slow rate force-displacement measurement.
1.3 This procedure is for baseballs and softballs meeting standards established by the sports' governing bodies.
Note 1—Since the compression-displacement of baseballs and softballs can influence the performance characteristics, this test provides a simple method to compare and categorize such balls based on force levels in a standardized compression-displacement test.
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.

SCOPE
1.1 This specification defines a method for determining the Bat-Ball Coefficient of Restitution (BBCOR), Bat Performance Factor (BPF), Ball Exit Speed Ratio (BESR), and a method for estimating the Batted-Ball Speed (BBS). It is applicable to baseball bats of any construction or material. The method provides a quantitative measure of bat dynamic performance that may be used for comparison purposes.
1.2 The BBCOR, BPF, BESR, and BBS are calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this specification.
1.3 The values stated in English units are to be regarded as the 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.

SCOPE
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 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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.

SCOPE
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 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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.