International ISO Standard ISO7429-1 Fine bubble technology - First edition Industrial and consumer device 2024-04 applications - Part 1: Assessment of water pressure driven nozzles by evaluating size and concentration indices of generated fine bubbles Reference number IS0 7429-1:2024(en) @ ISO 2024 IS0 7429-1:2024(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: [email protected] Website: www.iso.org Published in Switzerland @ IS0 2024 - All rights reserved ii