3.1 CHARACTERISTICS
The ball shall be spherical, made of a flexible material (leather, synthetic leather, or
similar) which does not absorb humidity, i.e. more suitable to outdoor conditions since
matches can be played when it is raining. The ball has a bladder inside made of rubber
or a similar material. Approval of synthetic leather material is determined by FIVB
regulations.
Color: bright colors (such as orange, yellow, pink, white, etc.)
Circumference: 66 to 68 cm for FIVB international competitions
Weight: 260 to 280 g
Inside pressure: 171 to 221 mbar or hPa (0.175 to 0.225 Kg/cm2)
3.2 UNIFORMITY OF BALLS
All balls used in a match must have the same characteristics regarding color,
circumference, weight, pressure, type, etc.
Official international competitions must be played with FIVB homologated balls.
3.3 THREE-BALLS SYSTEM
For FIVB World Competitions three balls shall be used. In this case, six ball retrievers
are stationed at each corner of the free zone and behind each referee (Diagram 6).
No comments:
Post a Comment