BS EN 13141-4:2011 PDF

1   Scope This European Standard specifies aerodynamic, acoustic and electrical power performance test methods for fans used in residential ventilation. These methods primarily concern:

— ventilation fans installed on a wall or in a window without any duct;

— ventilation fans installed in the downstream of a duct;

— ventilation fans installed in the upstream of a duct;

— ventilation fans installed in a duct;

— encased ventilation fans having several inlets.

For acoustic performance testing one of the following methods is used:

— in-duct method;

— reverberant room method;

— enveloping surface method.