I have a 1L Spray bottle, and I add 8ml of F10 to it and fill to the 1L mark... According to the F10 bottle, that is enough to cover/kill everything potentially harmful... Although, it all means nothing and wont kill everything/anything of what it says if you dont leave it for the said/appropriate time before wiping...
It would help to know how much your spray bottle holds so that others can do the math for you if they feel nice enough to do so...