My TDCI has failed its MOT on an oil leak

now im sure that there is a quantified number stated in the guidlines in mm cubed that the car has to leak in a period of time

are there any MOT testers who know what it is

as for the mondeo its leaking slightly and its eminating from the o/s area by the wishbone driveshaft , its dripping down onto the subframe , any ideas ?

the bloke who has failed it doesnt know where its coming from ,