International ISO Standard IS07392 Fine bubble technology - First edition Evaluation method for determining 2024-04 surface tension of ultrafine bubble dispersions Referencenumber IsO7392:2024(en) @ISO2024 IS0 7392:2024(en) COPYRIGHTPROTECTEDDOCUMENT @IS02024 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 anyform 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. ISocopyrightoffice CP401·Ch.deBlandonnet8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Email:copyright@iso.org Website:www.iso.org Published in Switzerland @IS0 2024-All rights reserved ii