ASTM International

Standard Test Methods for Measuring High-Speed Bat Performance
 N F2219

Annotation

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.

The BBCOR, BESR, and BBS are each calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this standard.

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.

Автоматический перевод:

Стандартные методы испытаний для того, чтобы измерить быстродействующий уровень летучей мыши

Метод для определения работы летучей мыши, измеряя коэффициент шара летучей мыши реституции (BBCOR), получая выходное отношение скорости шара (BESR) и вычисляя скорость бившего палкой шара (BBS). Это применимо к летучим мышам бейсбола и софтбола любого строительства или материала. Методы испытаний обеспечивают количественные показатели летучей мыши динамическая работа, которая может использоваться в целях сравнения.