FIFA Quality Pro certification logo
FIFA Quality Pro is the highest football certification standard. Footballs with the FIFA Quality Pro logo are used in the World Cup, the European Football Championship and other top competitions. In order to receive the FIFA Quality Pro logo, footballs must pass 7 stringent tests:
Circumference: Size 5 FIFA Quality Pro footballs must have a circumference between 68.6 and 69.5 cm.
Roundness: When fully inflated, the roundness of the ball may not vary by more than 1.5%.
Rebound: At room temperature, the rebound should be between 135 and 155 cm when the ball is dropped 10 times from a height of 2 m on to a steel plate. At 5°C, the rebound must be at least 125 cm.
Weight: Size 5 FIFA Quality Pro footballs must weigh between 420 and 445 g.
Loss of pressure: The loss of air must not exceed 20%.
Water absorption: When immersed in a tank of water and squeezed and turned 250 times, the ball must not absorb more than 10% of its capacity in water.
Shape and size retention: This test is only used on FIFA Quality Pro footballs, and is designed to ensure the ball can keep its shape under all conditions. The ball is fired at a steel plate at 31 mph no fewer than 2,000 times. Only balls which show no signs of damage and whose circumference does not change by more than 1.5 cm can receive the certification.