That's a question that not even airline HR departments can answer in Europe. Minimum requirements here are generally driven by who is available and even then they tend to be fairly flexible.
Turboprop and short haul jet jobs usually attract no minimum to apply. Longhaul and the flag carriers will normally want some heavy metal time. As with everywhere else in the world the minimums are just that - who gets the job is another story.
Ref the 500 ME Comm requirement. That is not something that would generally be required for the 1st FO job. The virtual absence of any light twin GA in Europe wouldn't allow it! Despite all the whinging that goes on on this board - Europe would have to be one of the easiest places in the world to get that all elusive first job, although hiring has obviously cooled off dramatically post 911 and with the Gulf problems looming.
It never ceases to amaze me the number of guys/girls I've met here who got their first jobs as turboprop FO's (some even jet FO's!). Compare that to Australia where even to be considered for a turboprop FO you're looking at 1500 hours and if 1000 of that isn't on twins then the CP will start looking sideways at you!!
And would you believe a number of the airlines here still provide cadet sponsorships!! Lucky ******s.