cornwallis,
youŽll find the design service goals in the ALI (airworthiness limitation items) documentation of the airplane type, for instance in the MRBR (maintenance review board report).
A340 classics, depending on the weight variant, have a DSG of 80.000FH / 20.000FC (A340-600 100.000FH / 16.000FC), if I remember correctly. Airbus just started to extend the DSG of the classics, such as they have done on A300s.
regards,
j. v.