prEN 16211

Ventilation for buildings - Measurement of air flow rates on site - Methods prEN 16211

General information

40.60 Close of voting   Jun 1, 2023


CEN/TC 156 Ventilation for buildings

European Norm

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


This document specifies methods for the measurement of air flow rates on site. It provides a description of the air flow rate measurement methods and how measurements are performed within the margins of stipulated method uncertainties. It gives the necessary measurement conditions (e.g. length of straight duct, uniform velocity profile) to achieve the stipulated measurement uncertainties.
The methods for measuring the air flow rate inside ducts do not apply to:
- ducts that are not circular or rectangular (e.g. oblong ducts);
- flexible ducts.

Life cycle


EN 16211:2015


prEN 16211
40.60 Close of voting
Jun 1, 2023