The placards in the U.S. are relatively standardized; however, they are not always updated when the lift truck is modified (as in adding an attachment). In addition, there is absolutely no information available to help the operator estimate the capacity when lifting a non-standard load. Lift truck operators are instructed that the safe lifting capacity will be reduced as the load center moves out or up, but are not given anything to let them know how much it is reduced.
If the euro plates have more information, I would be very interested in seeing the design. Can someone maybe post a photo to the photo gallery on this site