FINAL INTERNATIONAL ISO/FDIS DRAFT 717-1 STANDARD ISO/TC43/SC2 Acoustics Rating of sound Secretariat:DIN insulation in buildings and of building Voting begins on: elements - 2020-09-16 Voting terminates on: Part 1: 2020-11-11 Airborne sound insulation Acoustique-EvaluationdeI'isolementacoustiquedes immeubleset desélémentsdeconstruction- Partie 1:Isolement aux bruits aeriens ISO/CENPARALLELPROCESSING RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION. IN ADDITION TO THEIR EVALUATIONAS Reference number BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO- IS0/FDIS 717-1:2020(E) LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT INTERNATIONAL STANDARDS MAY ON ISO OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STAN- @ISO 2020 NATIONAL REGULATIONS. IS0/FDIS 717-1:2020(E) COPYRIGHTPROTECTEDDOCUMENT @IS02020 All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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 below or Iso's memberbody in the country ofthe requester. ISO copyright office CP 40i : Ch.de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22.749 01 11 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2020 - All rights reserved IS0/FDIS 717-1:2020(E) Contents Page Foreword ..iv Introduction ..V 1 Scope. ..1 2 Normative references 3 Termsanddefinitions .2 4 Procedureforevaluatingsingle-numberquantities .2 4.1 .2 General 4.2 Referencevalues ..4 4.3 Sound spectra. 4 4.4 Methodofcomparison .4 4.5 Calculation of spectrumadaptationterms .8 5 Statement of results .9 5.1 General .9 5.2 Statementof performance of building elements 9 5.3 Statementofrequirementsandofperformanceofbuildings .10 AnnexA(informative)Useofspectrumadaptationterms ..11 AnnexB (informative)Termsand spectraforanenlargedfrequencyrange .13 AnnexC(informative)Examples ofthecalculationofsingle-numberquantitiesand .16 spectrumadaptationterms. Annex D (normative) Single-number rating for improvement of sound reduction index by linings.... 19 AnnexE (normative)Standard basicelementsformeasuring the improvement ofairborne sound insulation by linings .21 Bibliography .26 IS02020-Allrightsreserved ili