1 Scope
This European Standard specifies aerodynamic, acoustic and electrical power performance
test methods for fans used in residential ventilation. These methods primarily concern:
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— ventilation fans installed on a wall or in a window without any duct;
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— ventilation fans installed in the downstream of a duct;
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— ventilation fans installed in the upstream of a duct;
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— ventilation fans installed in a duct;
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— encased ventilation fans having several inlets.
For acoustic performance testing one of the following methods is used:
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— in-duct method;
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— reverberant room method;
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— enveloping surface method.