scope:

Specifies test methods, test requirements and classifications for air handling units which are supplying and/or exhausting air, via ductwork, for the ventilating/conditioning a part or the whole of the building. This standard is NOT applicable to the following: a) air conditioning units serving a limited area in a building, such as fan coils units. b) units for residential buildings c) units producing ventilation air mainly for a manufacturing process. Except for the thermal and acoustic performance of the casing, the testing methods and requirements are applicable to both complete units and any separate sections. The filter bypass test is not applicable to the testing of high efficiency particulate air filters (HEPA), which are recommended to be installed downstream of the air handling unit.