This standard BS EN 12238:2001 Ventilation for buildings. Air terminal devices. Aerodynamic testing and rating for mixed flow application is classified in these ICS categories:
91.140.30 Ventilation and air-conditioning systems
This European Standard specifies methods for the laboratory aerodynamic testing and rating of air terminal devices for mixed flow applications, including the specification of suitable test facilities and measurement techniques. The standard gives only tests for the assessment of characteristics of the air terminal devices under isothermal conditions. The testing of low velocity air terminal devices is specified in EN 12239.