ISO INTERNATIONAL STANDARD 16838 First edition 2019-01 Non-destructive testing Acoustic emission testing Test method for classification of active cracks in concrete structures Essaisnondestructifs-Controleparémissionacoustique Méthode detest pour laclassification desfissures activesdans les structuresenbéton Referencenumber ISO16838:2019(E) so @IS02019 IS016838:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2019 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 on the internet or an intranet, without prior written permission. Permission can be requested from either IsO at the address below orIso's memberbody in the countryof therequester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone:+41227490111 Fax:+41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2019- All rights reserved IS0 16838:2019(E) Contents Page Foreword ..iv Introduction.. 1 Scope.. 2 Normative references 3 Terms and definitions 4 Measurement system ..1 4.1 AEsensor .1 4.2 System for signal analysis ..2 5 Environmental noises ..2 6 Test procedure .2 7 Test report ..3 Bibliography .5 IS0 2019 - All rights reserved iii