Standard Test Method for Seam Measurement Procedure for Baseballs and Softballs

Importancia y uso:

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.

Subcomité:

F08.26

Volúmen:

15.07

Número ICS:

59.060.01 (Textile fibres in general), 97.220.40 (Outdoor and water sports equipment)

Palabras clave:

ball seam height; baseball; softball;