This post sparked my interest!
The closest I have found is Euroast who are working on the creation and implementation of a common European qualification for Management Assistants.
EUMA is a partner in this project so they might be able to provide more information on this.
In the meantime, check out the website:http://www.euroast.eu/sommaire.php3?lang=en
Matt Griffin MIPA
Wales Regional Coordinator
Institute of Professional Administrators (IPA)