Table of Contents

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)

Abstract

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.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
ProductNote	Pending Revision indicates that as a result of the Aged Standards review process, the document needs updating. If no project proposal, meeting the quality criteria, is received within the 12 month timeframe, the document shall be withdrawn.
Pages
ISBN
Committee	AV-004
Supersedes	AS 2253-1979 DR 05280 CP