UNI EN 12239 : 2006
Current
The latest, up-to-date edition.
VENTILATION FOR BUILDINGS - AIR TERMINAL DEVICES - AERODYNAMIC TESTING AND RATING FOR DISPLACEMENT FLOW APPLICATIONS
07-20-2006
Foreword
1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Symbols
4 Types of air terminal devices
5 Method of test
5.1 Principle
5.2 Test set-up
5.3 Installation
5.3.1 General
5.3.2 Test installation D
5.3.3 Test installation P
5.4 Velocity instruments
5.5 Test room
5.6 Procedure
5.6.1 General
5.6.2 Measuring with tracer gas
5.6.3 Measuring with zero pressure-difference method
5.7 Expression of results
5.7.1 Pressure measurement for a given flow rate
5.7.2 Velocity measurement
5.7.3 Induction rate measurement
6 Uncertainty
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