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making of a basketball 2 steps ball before the rubber is put on and the bottom picture is a black rubber ball getting it orange outer pieces put on standard equipment for basketball balls

FIBA Has Detailed Rules

As the the sole competent authority in basketball by the International Olympic Committee (IOC), the International Basketball Federation (FIBA) has a big challenge in setting the rules for 213 National federations of basketball throughout the world.

Official Basketball Rules 2008
Basketball Equipment

7 Basketballs
7.1 For Levels 1 and 2, the outer surface of the ball shall be made of leather or artificial/composite/synthetic leather. For Level 3, the outer surface of the ball may be made of rubber.
7.2 The surface of the ball shall not contain toxic materials or any materials which may cause an allergic reaction. The ball must not contain heavy metals (EN 71) or AZO colours.
7.3 The ball shall:
• Be spherical, with black seams not exceeding 6,35 mm in width and, either of a single shade of orange or of the orange/light brown FIBA approved colour combination.
• Be inflated to an air pressure such that, when it is dropped onto the playing floor from a height of approximately 1,800 mm measured from the bottom of the ball, it will rebound to a height of between 1,200 mm and 1,400 mm, measured to the top of the ball.
• Be marked with its respective size number.
7.4 For all men’s competitions in all categories, the circumference of the ball shall be no less than 749 mm and no more than 780 mm (size 7) and the ball shall weigh no less than 567 g and no more than 650 g.
7.5 For all women’s competitions in all categories, the circumference of the ball shall be no less than 724 mm and no more than 737 mm (size 6) and the ball shall weigh no less than 510 g and no more than 567 g.
7.6 In addition to checking the specifications listed above, the following tests shall be carried out:
• Fatigue strength test.
• Heat-storage test.
• Valve leak test.
• Practice test.
• For Levels 1 and 2, the category 1 ball “black” test.
7.7 For Levels 1 and 2, the organisers shall provide at least 12 balls of the same model and specification for practices and warm-ups.

References:
International Basketball Federation – www.fiba.com
Photo – www.kickstarter.com/projects/shootersrev/evo-onetm-sensorized-basketball-performance-techno

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About Sports Balls

Sports Balls is a group of sports enthusiasts interested in the official specifications of balls used as sports equipment. As hobbyists, we are continually amazed at the level of detail used to accomplish fair play.

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