BS ISO 10534-2 : 98 AMD 13701
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
ACOUSTICS - DETERMINATION OF SOUND ABSORPTION COEFFICIENT AND IMPEDANCE IN IMPEDANCE TUBES - TRANSFER-FUNCTION METHOD
11-04-2002
23-11-2012
Contents
1. Scope
2. Definitions and symbols
3. Principle
4. Test equipment
5. Preliminary test and measurements
6. Test specimen mounting
7. Test procedure
8. Precision
9. Test report
Annexes
A Preliminary measurements
B Procedure for the one-microphone technique
C Pressure-release termination of test sample
D Theoretical background
E Error sources
F Determination of diffuse sound absorption coefficient
of locally reacting absorbers from the results of this
part of ISO 10534
G Bibliography
Defines the use of an impedance tube, two microphone locations and a digital frequency analysis system for the determination of the sound absorption coefficient of sound absorbers for nominal sound incidence. It can also be applied for the determination of the acoustical surface impedance or surface admittance of sound absorbing materials. Since the impedance ratios of a sound absorptive material are related to its physical properties, such as airflow resistance, elasticity and density, porosity, measurements described in this test method are useful in basic research and product development.
| Committee |
EH/1
|
| DevelopmentNote |
Renumbered and Superseded by BS EN ISO 10534-2 (05/2002)
|
| DocumentType |
Standard
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| ISO 10534-2:1998 | Identical |
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