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Outdoors Circumference: Size 5 Approved 68.5 - 69.5 cm, Size 5 Inspected 68.0 - 70.0 cm, Size 4 Inspected 63.5 - 66.0 cm at ball pressure: 0.8 bar
Indoor Circumference: Approved 62.5 - 63.5 cm, Inspected 62.0 - 64.0 cm at ball pressure: 0.6 bar
Tests are conducted at room temperature (approx. 20°C) and 65% humidity.
The three standards are FIFA Approved, the FIFA Inspected or the International Matchball Standard (technically equal to FIFA Inspected but royalty free). FIFA calls them footballs BTW.
Indoor Circumference: Approved 62.5 - 63.5 cm, Inspected 62.0 - 64.0 cm at ball pressure: 0.6 bar
Tests are conducted at room temperature (approx. 20°C) and 65% humidity.
The three standards are FIFA Approved, the FIFA Inspected or the International Matchball Standard (technically equal to FIFA Inspected but royalty free). FIFA calls them footballs BTW.
You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
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