From
UK CAA Policy Statement - Establishment and Dimensions of Aerodrome Traffic Zones (ATZ):
An ATZ is airspace of defined dimensions established around an aerodrome for the protection of aerodrome traffic (ICAO). ICAO defines ‘aerodrome traffic’ as “all traffic on the manoeuvring area of the aerodrome and all aircraft flying in the vicinity of the aerodrome”.
An aircraft is in the vicinity of an aerodrome when it is in, entering or leaving an aerodrome traffic circuit.
…so 'Long Final' probably isn't applicable at an uncontrolled aerodrome with an ATZ...