HP Deskpro 1000 Reference Manual page 62

European Notice
Products with the CE Marking comply with both the EMC
Directive (89/336/EEC) and the Low Voltage Directive
(73/23/EEC) issued by the Commission of the European
Community.
Compliance with these directives implies conformity to the
following European norms:
EN55022 (CISPR 22) - Radio Frequency Interference
EN50082-1 (IEC801-2, IEC801-3, IEC801-4) -
Electromagnetic Immunity
EN60950 (IEC950) - Product Safety
Japanese Notice
Reference Guide A-3