International ISO Standard ISO 19234 Hydrometry Low cost baffles First edition to aid fish passage on triangular 2024-03 profile gauging weirs Hydrometrie - Chicanes a faible cout pour faciliter le passage des poissons par les déversoirs a profil triangulaire Referencenumber IS0 19234:2024(en) @ ISO 2024 IS0 19234:2024(en) COPYRIGHT PROTECTED DOCUMENT @IS02024 Ali rights reserved. Uniess otherwise specified, or required in the context of its impiementation, 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 country oftherequester. ISso copyright office CP401·Ch.deBlandonnet8 CH-1214 Vernier, Geneva Phone:+41227490111 Email: copyright@iso.org Website: www.iso.org Published in Switzerland @IS02024-Allrightsreserved ii