This European Standard specifies methods for measuring the cooling capacity of chilled beams with forced air flow. The evaluation of aerodynamic air performance is not part of this standard. It will be dealt with in the future in a new standard entitled "Air terminal devices - Aerodynamic testing and rating for mixed flow applications for non isothermal testing - Cold jets". The purpose of the standard is to give comparable and repeatable product data. The test method applies to all types of convector cooling systems with forced air supply using any medium as energy transport medium. This standard only applies to situations where induced air only passes through the heat exchanger (primary air does not pass through the heat exchanger). NOTE The result is valid only for the specified test set up. For other conditions, (i.e. different positions of heat loads, inactive ceiling elements around the test objects), the producer should give guidance based on full scale tests. This standard refers to water as the main cooling medium, with the possibility of additional cooling from the primary air. Wherever water is written, any other cooling medium can also be used in the test.