Standard
Track updates
AS 1191-2002
[Current]Acoustics — Method for laboratory measurement of airborne sound transmission insulation of building elements
Provides a method for the measurement of airborne sound reduction index to building partitions such as walls, floor/ceiling assemblies, doors, windows and other space dividing elements.
Published: 24/04/2002
Pages: 16
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope
2 Application
2.1 General
2.2 Building Code of Australia
3 Referenced documents
4 Definitions
5 Building facilities
5.1 General
5.2 Diffusion
5.2.1 Requirements for test rooms
5.2.2 Room volume
5.2.3 Room dimensions
5.2.4 Sound absorption coefficients of surfaces
5.3 Flanking transmission
6 Test specimen
6.1 Size and nature of specimen
6.2 Specimen mounting
6.2.1 General
6.2.2 Filler walls
6.3 Ageing of specimen
7 Electro-acoustic equipment
7.1 General
7.2 Microphones and measuring systems
7.2.1 Calibration and performance checks
7.2.2 Cross-talk
7.3 Filters
7.3.1 Measurement filter
7.3.2 Source filter
8 Measurement procedure
8.1 General
8.2 Sound generation
8.3 Microphone
8.4 Background noise
8.5 Test frequencies
8.6 Averaging times
8.6.1 Discrete microphone position
8.6.2 Continuous microphone traverse
8.7 Equivalent absorption area
9 Statement of results
9.1 Calculations
9.2 Test report
Appendix A
A1 Diffusers
A2 Check of diffusivity
Appendix B
B1 General
B2 Methods of estimating precision
B2.1 Discrete microphone positions or equivalent
B2.2 Continuous averaging over one whole microphone traverse
B3 Recommended goals for precision
Appendix C
Appendix D
Appendix E
E1 General
E2 Sampling of the sound field
E3 Averaging time
E4 Reverberation time
E5 Precision
Cited references in this standard
[Superseded]
Acoustics — Measurement of sound insulation in buildings and of building elements — Part 3: Laboratory measurements of airborne sound insulation of building elements — Amendment 1: Installation guidelines for lightweight twin leaf partitions
[Superseded]
Acoustics — Rating of sound insulation in buildings and of building elements, Part 1: Airborne sound insulation
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