ISO INTERNATIONAL STANDARD 16837 First edition 2019-01 Non-destructive testing Acoustic emission testing Test method for damage qualification of reinforced concrete beams Essaisnondestructifs-Controleparémissionacoustique- Méthode d'essai pour la qualification des dommages des faisceaux de bétonarmé Reference number IS0 16837:2019(E) so @ IS0 2019 IS0 16837:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO 2019 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 or Iso's member body in the country of the requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved IS0 16837:2019(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope.. ..1 2 Normative reference. ..1 3 Terms and definitions 4 Requirement for the measuring system ..1 5 Environmental noises ..2 6 Test procedure .2 6.1 Basics. .2 6.2 Failure modes of reinforced concrete beams and AE activity .2 6.3 Load ratio and calm ratio .3 7 Test report ..4 Bibliography 5 @ IS0 2019 - All rights reserved iii