ISO INTERNATIONAL STANDARD 10847 First edition 1997-08-01 Acoustics -- In-situ determination of insertion loss of outdoor noise barriers of all types Acoustique -- Determination in situ de la perte par insertion de tous types d'écrans antibruit en milieu exterieur Organization for Standardization (IsO) Copyright License number 1HS/ICC/1996. Not for resale. No part of these ISo documents may be reproduced in any form, electronic retrieval system or otherwise, except as aliowed in the copyright law of the country of use, or with the prior written consent of isO (Case postale 56, 1211 Geneva 20, Switzerland, Fax +41 22 7341079),IHSortheISOLicensor'smembers. so Reference number ISO 10847:1997(E) Copyright International Organization for Standardization r license with ISC No reproduction or networking permitted without license from IHS Not for Resale ISO 10847:1997(E) Contents Page 1 Scope 2 Normative references.. 3Definitions 4.1 Direct method.. 4.2 Indirect measurement method 5 Instrumentation.. 5.1 Sound level meter and analyzer 5.2 Sound calibrator 5.3 Windscreen 5.4 Other instrumentation system 5.5 Meteorological equipment .. 6 Acoustic environment 6.1 General 6.2 Terrain profile and ground surface equivalence . 6.3 Meteorological conditions 6.4 Background noise. 7 Sources and source equivalence.. 7.1 Source type 7.2 Source equivalence. @ISO1997 All rights reserved.Unless otherwise specified, no partof thispublication may be reproduced microfilm, withoutpermission in writing fromthepublisher. InternationalOrganizationforStandardization Casepostale56-CH-1211Genéve20·Switzerland Internet [email protected] X.400 C=ch;a=400net;p=iso;o=isocs; S=central Printed in Switzerland i g permitted without license from IHS Not for Re ISO 10847:1997(E) @ISO 8 Measurement procedure 9 8.1 General planning . 8.2 Determination of barrier insertion loss 10 9 Information to be recorded. 9.1 Type of method. 12 9.2 Instrumentation .12 9.3 Acoustic environment.. 12 9.4 Sound sourc 9.5 Barrier to be tested.. 12 9.6 Site layout 12 9.7 Acoustical data 1o Information to be reported..... ili r networking permitted without license from IHS