sound reduction (attenuation)
[EN 12792-2003, 337]:reduction of sound energy
Continue reading →[EN 12792-2003, 337]:reduction of sound energy
Continue reading →[ASHRAE Standard 62.2]:an indoor object, person, or activity from which indoor air contaminants are released, or a route of entry of contaminants from outdoors or sub-building soil. [ISO 16814:2008, 3.39]:persons, materials or processes (activities) from which indoor air contaminants are … Continue reading →
[ISO 16814:2008, 3.40]:manner of controlling IAQ by preventing or reducing the emission of air contaminants or entry of air contaminants into an occupied space
Continue reading →[EN 16798-3:2017, 3.5]:amount of electric fan power divided by the air volume flow.
Continue reading →[AIVC, Air infiltration and ventilation glossary, 1992]:defined as the total volumetric supply airflow rate per unit volume of the room. Specific flow is expressed by the equation; a= Q/V , where Q is the ventilation air flow rate (m3/s) and … Continue reading →