Med 1 or 2...aren't these local procedures for Medivac flights? . A year ago almost to the day a 330 flamed an engine out following diversion from Madrid. ICAO then issued standardised fuel emergency calls. Neville has eluded to them, "Minimum Fuel" is not an emergency and will not get you priority. All it is telling ATC is you have committed to this airfield and any changes to the current clearance will land you below fixed reserve. If the clearance changes, ie you have to hold longer than previously advised the next step is "Mayday Fuel" there is no Pan call in between for the shy and faint of heart.
This must be in Oz regs somewhere so why the confusion?