ISO INTERNATIONAL STANDARD 7029 Third edition 2017-01 Acoustics Statistical distribution of hearing thresholds related to age and gender Acoustique - Distribution statistique des seuils d'audition en fonction de I'age et du sexe Reference number IS0 7029:2017(E) International Organization for Standardization @ IS0 2017 see=ZHEJIANG INST OF STANDARDIZATION C1 5956617 vided by IHS under I Not for Resale, 2017/3/28 03:02:4 No reproduction or networking permitted without license from IHS IS0 7029:2017(E) COPYRIGHT PROTECTED DOCUMENT IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form 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 Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org Internatinir DrganizationforStandardization icensee-ZHEJIANG INSTOF STANDARDIZAoISQ 07 - All rights reserved networking permited without license from IHS IS0 7029:2017(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms and definitions .2 4 Specification .2 4.1 General .2 4.2 Median .3 4.3 Distribution around the median .3 4.4 Application of data... ..5 Annex A (informative) Selected values of the Gaussian distribution .7 Annex B (informative) Numerical example to illustrate the procedure Annex C (informative) Median values of expected hearing threshold deviations .9 Annex D (informative) Selected values of the statistical distribution of hearing threshold deviations. ..10 Annex E (informative) Expected median thresholds at audiometric frequencies from 9 000 Hz to 12 500 Hz.. ..13 Annex F (informative) Notes on the derivation of descriptive statistics of hearing thresholds. ...15. Annex G (informative) Dispersion of source data around the expected median of hearing thresholds .20 Bibliography .21 ii nSee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 thout license from IHS