What is the weight and size of a soccer ball? How many faces are there?

FIFA approved eligibility criteria: The circumference of the ball must not be more than 71 cm or less than 68 cm. The circumference is between centimeters and the radius of the football should be between centimeters.

FIFA Approved Eligibility Criteria:

The weight of the soccer ball shall not be more than 453 grams or less than 396 grams at the beginning of the game, and the pressure shall be equal to 0 6 1 1 1 atmospheres (at sea level) when inflated, i.e. equal to 600-1100 grams of centimeters.

Traditional football consists of 32 faces, each of which is a piece of skin; These 32 faces are divided into two types, one is a regular pentagon, with a total of 12 faces, which are generally black; One is a regular hexagon, with a total of 20 faces, which is generally white.

The balls are round, made of leather or other suitable materials, and are usually made of 12 pieces of black pentagonal fabric and 20 pieces of regular hexagonal fabric.

The standard diameter of a soccer ball is:

The standard for the circumference of a sphere set by FIFA is centimeters.

Adidas uses a specially developed electronic circumferential measuring machine that will be used to measure the circumference of the sphere. The target is accurate to 690mm, and any ball between 685mm and 695mm can be recognized. Weight: 265g

"Universally celebrated" specifications.

The following is a comparison of the specifications and FIFA standards of "Celebration of the Whole World".

Circumference: Celebration of the whole world":

Centimeter. FIFA standard: cm.

Roundness: to be 16

The diameter of the soccer ball is measured in different places.

Celebrate the whole world": the maximum error.

FIFA standard: maximum error.

Water absorption: The soccer ball is to be played in water for 250

sub-pressure rotation. Celebrate with all the heavens": zero weight gain.

FIFA standard: 10% maximum weight gain

Weight. "Celebration of the Whole World": 440

Gram. FIFA standard: 420-445

Gram. **Performance: In the test, the ball was dropped from a height of two meters to the steel plate, which was repeated 10 times.

The height of the "universal celebration" :** is between 143 and 149 cm.

FIFA standard: The difference between the highest and lowest** heights in 10 times is not more than 10 cm.

Pressure loss: Air pressure is measured after 3 days of inflation.

"Celebration of the whole world": the maximum pressure loss is 10%.

FIFA standard: 20% maximum pressure loss

Instead of hand-sewing 32 balls, the "Potevio Tongqing" is made of 8 balls that are thermally bonded to have higher roundness and greater water resistance.

Grooves: Grooves are used to reduce air resistance and improve lateral stability in flight.

Embossing: Embossing is used to provide extra grip, which in turn improves the control of the goalkeeper and other players on the ball.

The size of the soccer ball is between 685mm and 695mm.

The weight of the soccer ball is 265g

The circumference of a football must not be more than 71 cm or less than 68 cm.

When the football is inflated, its pressure should be equal to 0 6-1 1 atmospheres (at sea level), i.e. equal to 600-1100 grams'.

FIFA's requirements for match balls are between 420-445 grams.

Must not exceed 450 grams (16 ounces) and must not be less than 410 grams.

According to the rules of the game of football, the circumference of a standard football must not be more than 71 cm or less than 68 cm. The weight of the football must not be more than 453 grams or less than 396 grams at the start of the match. After inflation, its pressure should be equal to 0 6 - 1 1

atmospheric pressure (at sea level), i.e. equivalent to 600-1100 g cm'.

1. FIFA approved qualification standard: the weight of the football is between 420 445 grams.

2. FIFA approved qualification standards: 2000 times of impact at 50 kilometers per hour "jabulani" ant slippery royal: 3500 times of impact at 50 kilometers per hour ** performance test:

FIFA approved eligibility criteria: not more than 10 cm. Ball pressure test:

FIFA approved eligibility criteria: ball pressure drop of no more than 20%. “jabulani”：

The ball pressure drop is no more than 10%.

3. Football standard: the circumference of the sphere shall not exceed 70 cm (28 inches), and the sullen rock shall not be less than 68 cm (27 inches). The weight of the ball, at the start of the game, must not exceed 450 grams (16 ounces) and must not be less than 410 grams (14 ounces).

The air pressure of the ball at sea level is to give beams to atmospheric pressure (600 grams to 1100 grams per square centimeter to pounds per square inch).

1. FIFA approved qualification standard: the weight of the football is between 420 445 grams.

2. FIFA approved qualification standards: 2000 times of impact at 50 kilometers per hour "jabulani": 3500 times of impact at 50 kilometers per hour **Performance test:

Inclusion FIFA approved closure of the mask is not more than 10 cm. Ball pressure test:

FIFA approved eligibility criteria: ball pressure drop of no more than 20%. “jabulani”：

The ball pressure drop is no more than 10%.

3. Football standard: The circumference of the ball shall not exceed 70 cm (28 inches) and shall not be less than 68 cm (27 inches). The weight of the ball, at the start of the game, must not exceed 450 grams (16 ounces) and must not be less than 410 grams (14 ounces).

The air pressure of the ball, at sea level, is to atmospheric pressure (600 grams to 1100 grams per square centimeter to pounds per square inch).

1. The qualification standard approved by the International Jean-Liang Football Federation: the weight of the football is between 420 445 grams.

2. FIFA approved qualification standards: 2000 times of impact at 50 kilometers per hour "jabulani": 3500 times of impact at 50 kilometers per hour **Performance test:

FIFA approved eligibility criteria: not more than 10 cm. Ball pressure test:

FIFA approved qualification standard: the ball pressure drop does not exceed the stuffy rock by more than 20%. “jabulani”：

The ball pressure drop is no more than 10%.

3. Football standard: The circumference of the sphere shall not exceed 70 cm (28 inches) and shall not be less than 68 cm (27 inches). The weight of the ball, at the start of the game, must not exceed 450 grams (16 ounces) and must not be less than 410 grams (14 ounces).

The air pressure of the ball, at sea level, is to atmospheric pressure (600 grams to 1100 grams per square centimeter to pounds per square inch).