Is there 570 ml in 1 UK pint of beer?

Yes, there is. Some will tell you 1 UK pint is only 568.261485 mL, but glass manufacturers produce and advertise the pint glasses as holding 570 mL. I added a google link to 570 mL sized glasses that can be bought.

Glasses are made in metric countries and metric people will work in round numbers. Thus the reason a pint glass holds 570 mL and not just 568.261485.