CSN EN 13141-11

CSN EN 13141-11 This European Standard specifies aerodynamic, acoustic and electrical power performance test measurements for un-ducted continuous supply ventilation units in a single room, ducted continuous supply ventilation units in a single room, un-ducted supply air ventilation units in a single room, ducted supply air ventilation units in a single room and centralised unit for whole dwelling used in residential ventilation.
Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.