ISO 20298-1:2018
(Main)Fine bubble technology — Sampling and sample preparation for measurement — Part 1: Ultrafine bubble dispersion in water
Fine bubble technology — Sampling and sample preparation for measurement — Part 1: Ultrafine bubble dispersion in water
This document specifies procedures and requirements for sampling and sample preparation of ultrafine bubble dispersions in water. This document is applicable to relatively stable dispersions where the size and number of bubbles are relatively constant for the duration of the sampling, sample preparation and measurement. This document is not applicable to less stable fine bubble dispersions or microbubble dispersions.
Technologie des fines bulles — Échantillonnage et préparation des échantillons pour la réalisation de mesures — Partie 1: Dispersion de bulles ultrafines dans l'eau
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INTERNATIONAL ISO
STANDARD 20298-1
First edition
2018-11
Fine bubble technology — Sampling
and sample preparation for
measurement —
Part 1:
Ultrafine bubble dispersion in water
Technologie des fines bulles — Échantillonnage et préparation des
échantillons pour la réalisation de mesures —
Partie 1: Dispersion de bulles ultrafines dans l'eau
Reference number
©
ISO 2018
© ISO 2018
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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Liquids for sampling and sample preparation . 2
5 Sampling . 2
5.1 General . 2
5.2 Apparatus . 2
5.3 Cleaning of apparatus . 2
5.4 Sampling procedure . 2
6 Sample preparation . 3
7 Records . 3
Annex A (informative) Homogeneity . 4
Annex B (informative) Example of procedure to dilute UFBD and related record .6
Bibliography . 8
Foreword
ISO (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 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 Electrotechnical 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 of 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 held 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 information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 281, Fine bubble technology.
A list of all the parts in the ISO 20480 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2018 – All rights reserved
Introduction
Fine bubble technologies offer performance enhancement in a number of processes and applications
such as cleaning, aquaculture and agriculture.
Characterization of ultrafine bubbles is critical to the further development of industrial applications. A
number of characteristics such as bubble size, bubble number stability, bubble number concentration
as well as other physical and chemical characteristics are important in such applications. In order to
provide a verifiable characterization platform for these applications, a set of sampling and sample
preparation procedures has been developed. This approach results in the most reliable correlation
between the characteristics of the fine bubbles in dispersion and their application effectiveness.
It is commonly accepted that the sample preparation technique will depend on the characterization
technique used.
INTERNATIONAL STANDARD ISO 20298-1:2018(E)
Fine bubble technology — Sampling and sample
preparation for measurement —
Part 1:
Ultrafine bubble dispersion in water
1 Scope
This document specifies procedures and requirements for sampling and sample preparation of ultrafine
bubble dispersions in water.
This document is applicable to relatively stable dispersions where the size and number of bubbles are
relatively constant for the duration of the sampling, sample preparation and measurement.
This document is not applicable to less stable fine bubble dispersions or microbubble dispersions.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 20480-1, Fine bubble technology — General principles for usage and measurement of fine bubbles —
Part 1: Terminology
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 20480-1 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: av
...
INTERNATIONAL ISO
STANDARD 20298-1
First edition
2018-11
Fine bubble technology — Sampling
and sample preparation for
measurement —
Part 1:
Ultrafine bubble dispersion in water
Technologie des fines bulles — Échantillonnage et préparation des
échantillons pour la réalisation de mesures —
Partie 1: Dispersion de bulles ultrafines dans l'eau
Reference number
©
ISO 2018
© ISO 2018
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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Liquids for sampling and sample preparation . 2
5 Sampling . 2
5.1 General . 2
5.2 Apparatus . 2
5.3 Cleaning of apparatus . 2
5.4 Sampling procedure . 2
6 Sample preparation . 3
7 Records . 3
Annex A (informative) Homogeneity . 4
Annex B (informative) Example of procedure to dilute UFBD and related record .6
Bibliography . 8
Foreword
ISO (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 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 Electrotechnical 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 of 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 held 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 information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 281, Fine bubble technology.
A list of all the parts in the ISO 20480 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2018 – All rights reserved
Introduction
Fine bubble technologies offer performance enhancement in a number of processes and applications
such as cleaning, aquaculture and agriculture.
Characterization of ultrafine bubbles is critical to the further development of industrial applications. A
number of characteristics such as bubble size, bubble number stability, bubble number concentration
as well as other physical and chemical characteristics are important in such applications. In order to
provide a verifiable characterization platform for these applications, a set of sampling and sample
preparation procedures has been developed. This approach results in the most reliable correlation
between the characteristics of the fine bubbles in dispersion and their application effectiveness.
It is commonly accepted that the sample preparation technique will depend on the characterization
technique used.
INTERNATIONAL STANDARD ISO 20298-1:2018(E)
Fine bubble technology — Sampling and sample
preparation for measurement —
Part 1:
Ultrafine bubble dispersion in water
1 Scope
This document specifies procedures and requirements for sampling and sample preparation of ultrafine
bubble dispersions in water.
This document is applicable to relatively stable dispersions where the size and number of bubbles are
relatively constant for the duration of the sampling, sample preparation and measurement.
This document is not applicable to less stable fine bubble dispersions or microbubble dispersions.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 20480-1, Fine bubble technology — General principles for usage and measurement of fine bubbles —
Part 1: Terminology
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 20480-1 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: av
...
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