In the page you write an example of conversione from Lbs (psi) to bar where 8 lbs became 5.5 bar! this is like 5.4 atmosphere! it's to much!
the correct conversion is 1 lbs (psi) = 0,068948 bar, so 8 lbs became 0.55 bar (like half atmoshere).
enjoy
Jul 22, 2009 Rating
Ball pressure by: Gunner
According to FIFA the ball must be "..of a pressure equal to 0.6 ? 1.1 atmosphere (600 ? 1,100 g/cm2) at sea level (8.5 lbs/sq in ? 15.6 lbs/sq in)
