ISO INTERNATIONAL STANDARD 16283-1 First edition 2014-02-15 Acoustics Field measurement of sound insulation in buildings and of building elements Part 1: Airborne sound insulation Acoustique - Mesurage in situ de I'isolation acoustique des batimentsetdes élémentsdeconstruction Partie 1: Isolation des bruits aeriens Reference number IS016283-1:2014(E) LSO @ IS0 2014 HS under I without license from IHS Not for Resale IS0 16283-1:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2014 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56:CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ IS0 2014 - All rights reserved No reproductic networking permited without license from IHS Not for Resale IS0 16283-1:2014(E) Contents Page Foreword ..V Introduction. ...vi 1 Scope. 2 Normative references ...1. 3 Terms and definitions 4 Instrumentation. .5 4.1 General .5 4.2 Calibration ..5 4.3 Verification ..5 5 Frequency range .5 6 General .6 7 Default procedure for sound pressure level measurement .7 7.1 General .7 7.2 Generation of sound field. .7 7.3 Fixed microphone positions. ..8 7.4 Mechanized continuously-moving microphone 9 7.5 Manually-scanned microphone 10 7.6 Minimum distances for microphone positions .12 7.7 Averagingtimes .12 7.8 Calculation of energy-average sound pressure levels ..13 8 Low-frequency procedure for sound pressure level measurement ..14 8.1 General ..14 8.2 Generation of sound field .14 8.3 Microphone positions .14 8.4 Averaging time .15 8.5 Calculation of low-frequency energy-average sound pressure levels. .15 9 Background noise (default and low-frequency procedure) .16 9.1 General .16 9.2 Correction to the signal level for background noise. .17 10 Reverberation time in the receiving room (default and low-frequency procedure) .17 10.1 General 17 10.2 Generation of sound field .18 10.3 Default procedure. .18 10.4 Low-frequency procedure .18 10.5 Interrupted noise method .18 10.6 Integrated impulse response method ..18 11 Conversion to octave bands .19 12 Recording results ..19 13 Uncertainty. ..19 14 Test report ..19 Annex A (normative) Requirements for loudspeakers ..21 Annex B (informative) Forms for recording results. .22 Annex C (informative) Additional guidance ..25 Annex D (informative) Horizontal measurements - Examples of suitable loudspeaker and microphonepositions .30 Annex E (informative) Vertical measurements - Examples of suitable loudspeaker and iii ense with ISt ted withoutlicense from IHS Not for Resale