From
Ruby chart for QF (and Emerald & Sapphire charts)
Upgrade international (only home carrier) (one way / one class)
for miles: dep. on distance bw. 12k - 96k pts standby only (one stop fligths count as two, e.g. SYD-SIN-LHR)
Don't agree with this. If ticketed SYD-LHR on one flight number a single upgrade applies for the complete SYD-LHR. It is not split into 2 sectors, even though the aircraft stops in SIN for pax transfers, fuel etc. You cannot apply for an upgrade for part of the ticketed flight (eg SYD-SIN)