Gentleman,
There is no international HR exist as such....although the labour legislations and business practices in different countries establish different HR practices as benchmark practices which may be local as well as global in application.
For examle USA,Canada,Australia and Gulf countries benchmark level are same.
African benchmark is sligntly different from company to company within African continent.
In Europe, Business is governed by Europian Union Employment laws and their implication decides what and how they practice HR in europe that is also divided into East Europe and West Europe because its transition to Europian Union.
Regards
Rashid