DIN EN 16211:2014-10

This standard defines simplified methods of measurement of air flows on site. It provides a description of the air flow methods 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 EN12599. This 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.