BS EN 16211:2015

This standard BS EN 16211:2015 Ventilation for buildings. Measurement of air flows on site. Methods is classified in these ICS categories:

• 17.120.10 Flow in closed conduits
• 91.140.30 Ventilation and air-conditioning systems

This European Standard specifies simplified methods for the measurement of air flows on site. It provides a description of the air flow methods and how measurements are performed within the margins of stipulated method uncertainties.

One measurement method is to take point velocity measurements across a cross-section of a duct to obtain the air flow. This simplified method is an alternative to the method described in ISO 3966 and EN 12599 . This European Standard requests certain measurement conditions (length of straight duct and uniform velocity profile) to be met to achieve the stipulated measurement uncertainties for the simplified method.