ASTM International

Standard Test Method for Measuring Softball Bat Performance Factor
 N F1890

Annotation

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.

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

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 determine the applicability of regulatory requirements prior to use.

Автоматический перевод:

Метод стандартной пробы для измерения фактора производительности летучей мыши софтбола

Этот метод тестирования покрывает метод для определения bat производительности путем измерения коэффициента bat шара реституции (BBCOR), получения bat показателя производительности (BPF) и вычисления бившейся палкой скорости шара (BBS). Это применимо к летучим мышам софтбола любой конструкции или материала. Метод обеспечивает количественные показатели bat динамической производительности, которая может использоваться в целях сравнения.