1、Fine bubble technology General principles for usage and measurement of fine bubblesPart 1: TerminologyBS ISO 204801:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06 ISO 2017Fine bubble technology General principles for usage and measurement of fine bubbles Part 1
2、 TerminologyTechnologie des fines bulles Principes gnraux pour lutilisation et la mesure des fines bulles Partie 1: TerminologieINTERNATIONAL STANDARDISO20480-1First edition2017-06Reference numberISO 20480-1:2017(E)National forewordThis British Standard is the UK implementation of ISO 204801:2017.T
3、he UK participation in its preparation was entrusted to Technical Committee LBI/50, Fine Bubble Technology (FBT).A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract.
4、Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 89998 0ICS 07.030Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of
5、 the Standards Policy and Strategy Committee on 31 July 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS ISO 204801:2017 ISO 2017Fine bubble technology General principles for usage and measurement of fine bubbles Part 1: TerminologyTechnologie des fines bulles
6、Principes gnraux pour lutilisation et la mesure des fines bulles Partie 1: TerminologieINTERNATIONAL STANDARDISO20480-1First edition2017-06Reference numberISO 20480-1:2017(E)BS ISO 204801:2017ISO 20480-1:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in Switze
7、rlandAll rights reserved. Unless otherwise specified, 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 requ
8、ested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 204801:2017ISO 20480-1:2017(E)ii ISO 2017 All ri
9、ghts reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll rights reserved. Unless otherwise specified, 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 o
10、r an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightis
11、o.orgwww.iso.orgISO 20480-1:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 1Annex A (informative) Use of the terms “fine bubble” or “ultrafine bubble”, instead of “nanobubble” in ISO/TC 281 documents. 4Bibliography 6 ISO 2017 All rights reserved iiiConte
12、nts PageBS ISO 204801:2017ISO 20480-1:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each membe
13、r body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Elec
14、trotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types o
15、f ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be h
16、eld responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ patents).Any trade name used in this document is inform
17、ation given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WT
18、O) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared by ISO/TC 281, Fine bubble technology.A list of all the parts in the ISO 20480 series can be found on the ISO website.iv ISO 2017 All rights reservedBS ISO 2048
19、01:2017ISO 20480-1:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested i
20、n a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commis
21、sion (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents sho
22、uld be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for
23、 identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ patents).Any trade name used in this document is information given for the
24、 convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in th
25、e Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared by ISO/TC 281, Fine bubble technology.A list of all the parts in the ISO 20480 series can be found on the ISO website.iv ISO 2017 All rights reserved ISO 20480-1:2017(E)Introducti
26、onApplications of fine bubble technologies can be found in cleaning, environmental improvement, the food and drink sector, aeration systems, medicine, water and waste water treatment, as well as agriculture and aquaculture. Developing appropriate terminology for such diverse technologies is therefor
27、e critical to business trade or product acceptance by consumers.Fine bubbles can be present in both liquids and solids. Fine bubbles can contain air or another gas. The bubble can be held in place by surface tension or be surrounded with a coating, e.g. a lipid. Fine bubbles generated for various ap
28、plications can vary in size, gas content or bubble coating. The generation techniques used are also different.It should be noted that the motion of bubbles in a medium can be determined by buoyancy forces or randomly and thermally activated processes leading to Brownian motion. For this reason, larg
29、er bubbles can display buoyant behaviour (rise upwards) and smaller bubbles remain in the liquid medium displaying random motion. This document focuses on the definitions of such entities. ISO 2017 All rights reserved vBS ISO 204801:2017BS ISO 204801:2017Fine bubble technology General principles for
30、 usage and measurement of fine bubbles Part 1: Terminology1 ScopeThis document specifies terminology and definitions used in the area of fine bubble technology. Terminology in this document covers general principles, measurements, and individual applications of fine bubble technology.2 Normative ref
31、erencesThere are no normative references in this document.3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: ISO Online browsing platform: available a
32、t h t t p :/ www .iso .org/ obp IEC Electropedia: available at h t t p :/ www .electropedia .org/ 3.1bubblegas in a medium enclosed by an interface3.2fine bubblebubble (3.1) with a volume equivalent diameter (3.8) of less than 100 mNote 1 to entry: 100 m is also represented as 1 104m.Note 2 to entry
33、 Annex A provides further information on the use of terms “fine bubble” or “ultrafine bubble” (3.3), instead of “nanobubble”.3.3ultrafine bubblefine bubble (3.2) with a volume equivalent diameter (3.8) of less than 1 mNote 1 to entry: Measured examples of ultrafine bubbles in water by particle char
34、acterization methods, in practical application fields, mostly range between 100 nm and 200 nm. The measured results can include contaminants, as well as ultrafine bubbles.3.4microbubblefine bubble (3.2) with a volume equivalent diameter (3.8) in the range from equal or greater than 1 m to less than
35、100 mNote 1 to entry: Figure 1 shows the size range of bubbles (3.1), fine bubbles, ultrafine bubbles (3.3), and microbubbles.INTERNATIONAL STANDARD ISO 20480-1:2017(E) ISO 2017 All rights reserved 1BS ISO 204801:2017ISO 20480-1:2017(E)Dimensions in mKey1 bubble2 fine bubble3 ultrafine bubble4 micro
36、bubbleFigure 1 Scale diagram showing bubble diameters3.5solid mediummaterial in solid phase in which bubbles (3.1) are dispersedNote 1 to entry: A solid medium can be a congealed or chemically immobilized (solidified) liquid which contains bubbles. As a result, bubbles are immobilized or have a rest
37、ricted degree of mobility.3.6liquid mediummaterial in liquid phase in which the bubbles (3.1) are dispersed3.7bubble number concentrationnumber of bubbles (3.1) per unit volume of mediumNote 1 to entry: The medium can be solid medium (3.5) or liquid medium (3.6).3.8volume equivalent diameterdeqdiame
38、ter of the spherical bubble of equivalent volumedVeq bubble6=pi3where Vbubbleis the volume of the considered bubble3.9bubble volumespherical (or otherwise) volume of a bubble (3.1)Note 1 to entry: In case of a bubble covered by its bubble shell (3.10), the volume of the bubble shell should be includ
39、ed.3.10bubble shellobject or a collection of objects that cover the bubble (3.1) surface almost completely2 ISO 2017 All rights reservedBS ISO 204801:2017ISO 20480-1:2017(E)Dimensions in mKey1 bubble2 fine bubble3 ultrafine bubble4 microbubbleFigure 1 Scale diagram showing bubble diameters3.5solid m
40、ediummaterial in solid phase in which bubbles (3.1) are dispersedNote 1 to entry: A solid medium can be a congealed or chemically immobilized (solidified) liquid which contains bubbles. As a result, bubbles are immobilized or have a restricted degree of mobility.3.6liquid mediummaterial in liquid ph
41、ase in which the bubbles (3.1) are dispersed3.7bubble number concentrationnumber of bubbles (3.1) per unit volume of mediumNote 1 to entry: The medium can be solid medium (3.5) or liquid medium (3.6).3.8volume equivalent diameterdeqdiameter of the spherical bubble of equivalent volumedVeq bubble6=pi
42、3where Vbubbleis the volume of the considered bubble3.9bubble volumespherical (or otherwise) volume of a bubble (3.1)Note 1 to entry: In case of a bubble covered by its bubble shell (3.10), the volume of the bubble shell should be included.3.10bubble shellobject or a collection of objects that cover
43、 the bubble (3.1) surface almost completely2 ISO 2017 All rights reserved ISO 20480-1:2017(E)3.11bubble temperaturetemperature at which an infinitesimal amount of vapour is in equilibrium with a bulk liquid for a specified pressureSOURCE: ISO 207652:2015, 3.2, modified Note 1 to entry and Note 2 to
44、entry have been deleted.3.12bubble-point pressurepressure under which gas bubbles form in a liquid at a particular operating temperature which gas bubbles (3.1) formSOURCE: ISO 151562:2015, 3.23.13coalescenceaction by which bubbles (3.1) in suspension unite to form larger bubblesSOURCE: ISO 29464:20
45、11, 3.1.24, modified “liquid particle” has been changed to “bubbles”.3.14bubble stabilityduration for total volume of bubbles in dispersion to increase twofold or reduce by half under a given temperature and pressure conditions3.15bubble size stabilityduration for a volume equivalent diameter (3.8)
46、of a bubble (3.1) to increase twofold or reduce by half under given temperature and pressure conditions3.16bubble number stabilityduration for the number of bubbles to increase twofold or reduce by half under a given temperature and pressure conditions3.17bubble generating systemsystem for creating
47、bubbles (3.1) in a liquid medium (3.6)3.18fine bubble generating systemsystem for creating fine bubbles (3.2) in a liquid medium (3.6)3.19ultrafine bubble generating systemsystem for creating ultrafine bubbles (3.3) in a liquid medium (3.6)3.20number concentration indexquantity representing the conc
48、entration of objects in a fine bubble dispersion measured by an industrially available and agreed methodNote 1 to entry: Fine bubble dispersion in reality often contains not only fine bubbles but also other components with applicationspecific functions.3.21size indexquantity representing an object s
49、ize in a fine bubble dispersion measured by an industrially available and agreed methodNote 1 to entry: Fine bubble dispersion in reality often contains not only fine bubbles but also other components with applicationspecific functions. ISO 2017 All rights reserved 3BS ISO 204801:2017ISO 20480-1:2017(E)Annex A (informative) Use of the terms “fine bubble” or “ultrafine bubble”, instead of “nanobubble” in ISO/TC 281 documentsISO/TC 281 recognizes that the term “nanobubble” is c
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