This part of GB/T 14625 specifies the methods for measuring the roundness of basketballs, footballs, volleyballs and handballs. This section applies to basketballs, footballs, volleyballs and handballs used in competitions and daily activities. This section does not apply to rubber balls.
GB/T 14625.1-2008 Referenced Document
GB/T 14625.4 Test methods for basketball,football,volleyball and handball- Part 4:Test conditions and sample preparation
GB/T 14625.1-2008 history
2008GB/T 14625.1-2008 Test methods for basketball,football,volleyball and handball- Part 1:Measurement of roundness
1993GB/T 14625.1-1993 Basketball, football, volleyball, handball. The measurement of roundness