NEN EN ISO 354 : 2003
Current
The latest, up-to-date edition.
ACOUSTICS - MEASUREMENT OF SOUND ABSORPTION IN A REVERBERATION ROOM
01-12-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Frequency range
6 Test arrangement
6.1 Reverberation room and diffusion of sound field
6.2 Test specimens
6.3 Temperature and relative humidity
7 Measurement of reverberation time
7.1 General
7.2 Interrupted noise method
7.3 Integrated impulse response method
7.4 Evaluation of reverberation times based on decay
curves
8 Expression of results
8.1 Method of calculation
8.2 Precision
8.3 Presentation of results
9 Test report
Annex A (normative) Diffusivity of the sound field in the
reverberation room
Annex B (normative) Test specimen mountings for sound
absorption tests
Bibliography
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