What is according ifc standard allowed to be used as key for a pset properties?
I found …
the name is a IfcIdentifier
Which would mean a property key (Its name in IFC) could be any alphanumeric string up to 255 characters including spaces and special characters like German Umlaute ä ü ö Merely most utf-8 character can be used for the key.
Would some one confirm this?
How about practic work. Do you guys out there use special character and spaces in property keys?