BS IS0 20304-1:2020 BSl Standards Publication Fine bubble technology - Water treatment applications Part 1: Test method for evaluating ozone fine bubble water generating systems by the decolorization of methylene blue bsi. BS ISO 20304-1:2020 BRITISH STANDARD Nationalforeword This British Standard is the UK implementation of IS020304-1:2020. The UKparticipation initspreparation was entrustedtoTechnical Committee LBI/50, Fine Bubble Technology (FBT). A list of organizations represented on this committee can be obtained on requesttoits committeemanager. This publication does not purport to include all the necessary provisions ofa contract.Users areresponsiblefor its correctapplication. @TheBritishStandards Institution2020 Published by BSI Standards Limited 2020 ISBN9780539 014778 ICS07.030 Compliance with a British Standard cannot confer immunity from legalobligations. This British Standard was published under the authority of the StandardsPolicyand StrategyCommitteeon31December2020. Amendments/corrigendaissuedsincepublication Date Text affected BSIS020304-1:2020 INTERNATIONAL ISO STANDARD 20304-1 First edition 2020-12-04 Fine bubble technology Water treatment applications - Part 1: Test method for evaluating ozone fine bubble water generating systems by the decolorization of methylene blue Technologiedes finesbulles-TraitementdeI'eau- Partie 1:Methode d'essaipour évaluer lesdiffuseurs afines bulles d'ozoneparladécolorationdubleudeméthylene Reference number IS0 20304-1:2020(E) ISO @ISO 2020