NBN EN ISO 354 : 2003
Current
The latest, up-to-date edition.
ACOUSTICS - MEASUREMENT OF SOUND ABSORPTION IN A REVERBERATION ROOM
12-01-2013
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
Provides method of measuring the sound absorption coefficient of acoustical materials used as wall or ceiling treatments, or the equivalent sound absorption area of objects, such as furniture, persons or space absorbers, in a reverberation room.
| DevelopmentNote |
Supersedes NBN EN 20354. (05/2004) Supersedes NBN S 01 009. (06/2010)
|
| DocumentType |
Standard
|
| PublisherName |
Belgian Standards
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| ISO 354:2003 | Identical |
| UNI EN ISO 354 : 2003 | Identical |
| UNE-EN ISO 354:2004 | Identical |
| DIN EN ISO 354:2003-12 | Identical |
| EN ISO 354:2003 | Identical |
| BS EN ISO 354:2003 | Identical |
| I.S. EN ISO 354:2003 | Identical |
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