EN 12589:2001

Ventilation for buildings - Air terminal units - Aerodynamic testing and rating of constant and variable rate terminal units

Publication date:   Jul 6, 2002

General information

90.93 Standard confirmed   Nov 21, 2017


CEN/TC 156 Ventilation for buildings

European Norm

91.140.30   Ventilation and air-conditioning systems



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This European Standard specifies methods for the aerodynamic testing and rating of constant and variable flow rate terminal units suitable for use with air distribution systems.
The terminal units considered are:
- Single and dual duct.
- Induction.
- Fan assisted induction (parallel and series).
- Single duct with integral diffuser.
The tests for each type of unit are summarized in Figure 1.
The tests in this standard are designed to determine fully the aerodynamic performance of terminal units and provide a basis for the comparison of the suitability of such assemblies when correctly installed in an air distribution system.

Related legislation

Legislation related to this standard


Construction products


Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec

Life cycle


EN 12589:2001
90.93 Standard confirmed
Nov 21, 2017