Ventilation for buildings. Air terminal devices. Aerodynamic testing of damper and valves
Ventilation for buildings. Air terminal devices. Aerodynamic testing of damper and valves
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1 Scope This European Standard specifies methods for the testing and rating of dampers and valves used in air distribution systems with pressure differences up to 2 000 Pa. The tests incorporated in this European Standard are:
a) leakage past a closed damper or valve (for classification see Annex C);
b) casing leakage (for classification see Annex C);
c) flow rate/pressure requirement characteristics;
d) torque: (see Annex A);
e) thermal transmittance: (see Annex B).
The acoustic testing of dampers and valves is not included in this European Standard. The tests specified above apply to the following:
f) measurement of leakage past a closed damper or valve;
g) measurement of casing leakage;
h) determination of flow rate and pressure requirements;
Другие стандарты BS