Just looking at my old ILS Operational Flight Check notes which say that (in the seventies) we checked:
GP using theodolite.
Loc range from 30nm 2000ft.
No flags to 25nm.
Emg speech at 15nm.
GP range: No flags to 10nm.
GP slice: No flags to 6deg. No false courses to 9deg.
Loc beam at 5nm. Check width.
Assessment run10nm orbit at 2000ft to check for flags and false courses.
Enrage local ATC by nicking their mushrooms from around the tower