The European Directive of concern that sets minimum requirements for external power supplies is:  European Commission Regulation 278/2009/EC of 06 April 2009 implementing Directive 2005/32/EC with regard to ecodesign requirements for no-load condition electrical power consumption and average active efficiency of external power supplies.  

For adapters with rated output power >10 watts, this requirement sets a "no-load" power consumption limit of 0.5 watts at 230VAC, which our adapters all meet.

All of our notebook adapters are rated for more than 10 watts.