ISO 7428-1:2024

Fine bubble technology — Domestic applications — Part 1: Assessment of showerhead devices by evaluating size and concentration indices of generated fine bubbles

ISO 7428-1:2024

Name:ISO 7428-1:2024   Standard name:Fine bubble technology — Domestic applications — Part 1: Assessment of showerhead devices by evaluating size and concentration indices of generated fine bubbles
Standard number:ISO 7428-1:2024   language:English language
Release Date:21-May-2024   technical committee:ISO/TC 281 - Fine bubble technology
Drafting committee:ISO/TC 281 - Fine bubble technology   ICS number:07.030 - Physics. Chemistry
International
Standard
ISO 7428-1
First edition
Fine bubble technology — Domestic
2024-05
applications —
Part 1:
Assessment of showerhead
devices by evaluating size and
concentration indices of generated
fine bubbles
Technologie des fines bulles — Applications domestiques —
Partie 1: Évaluation des dispositifs avec pommes de douche par
évaluation des indices de concentration et de la taille des fines
bulles générées
Reference number
ISO 7428-1:2024(en) © ISO 2024

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ISO 7428-1:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2024
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
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Email: [email protected]
Website: www.iso.org
Published in Switzerland

© ISO 2024 – All rights reserved
ii

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ISO 7428-1:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 2
4.1 Sample .2
4.2 Measuring instruments .2
5 Environment . 2
6 Evaluation . 2
6.1 General .2
6.2 Setting of fine bubble showerhead device to retention container .3
6.3 One-way flow .4
6.3.1 General .4
6.3.2 System configuration .4
6.3.3 Evaluation procedure for the one-way flow .5
6.4 Circulation flow .
...

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