AS ISO 140.4-2006

1 - AS ISO 140.4-2006 Acoustics - Measurement of sound
4 - PREFACE
7 - 1 Scope
7 - 2 Normative references
8 - 3 Definitions
10 - 4 Equipment
10 - 5 Test arrangement
10 - 6 Test procedure and evaluation
10 - 6.1 General
10 - 6.2 Generation of sound field in the source room
11 - 6.3 Measurement of average sound pressure level
12 - 6.4 Frequency range of measurements
12 - 6.5 Measurement of reverberation time and evaluation of the equivalent sound absorption area
13 - 6.6 Correction for background noise
13 - 7 Precision
13 - 8 Expression of results
14 - 9 Test report
15 - Annex A (normative) Qualification and positioning of the sound source
17 - Annex B (normative) Procedures for the measurement of sound insulation in octave bands
19 - Annex C (informative) Measurement of flanking transmission
21 - Annex D (informative) Guidance on measurements in the low frequency bands
23 - Annex E (informative) Forms for the expression of results
30 - Annex F (informative)
30 - Bibliography
31 - APPENDIX ZZ VARIATIONS TO ISO 140-4:1998 FOR APPLICATION IN AUSTRALIA (Normative)

Adopts ISO 140-4:1998 to provide field methods for measuring the airborne sound insulation properties of interior walls, floors and doors between two rooms under diffuse sound field conditions in both rooms.​

Originated as AS 2253-1979.
Revised and redesignated as AS ISO 140.4-2006.