ISO 20480-1:2017

Fine bubble technology — General principles for usage and measurement of fine bubbles — Part 1: Terminology

ISO 20480-1:2017 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.

Technologie des fines bulles — Principes généraux pour l'utilisation et la mesure des fines bulles — Partie 1: Terminologie

General Information

• Status: Published
• Publication Date: 21-Jun-2017
• ICS: 01.040.07 - Natural and applied sciences (Vocabularies)
• ICS: 07.030 - Physics. Chemistry
• Technical Committee: ISO/TC 281 - Fine bubble technology
• Drafting Committee: ISO/TC 281/WG 1 - General principles including terminology
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 14-Nov-2022

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 20480-1
First edition
2017-06
Fine bubble technology — General
principles for usage and measurement
of fine bubbles —
Part 1:
Terminology
Technologie des fines bulles — Principes généraux pour l’utilisation et
la mesure des fines bulles —
Partie 1: Terminologie
Reference number
ISO 20480-1:2017(E)
ISO 2017
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ISO 20480-1:2017(E)
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© ISO 2017, Published in Switzerland

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ii © ISO 2017 – All rights reserved
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ISO 20480-1:2017(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

Annex A (informative) Use of the terms “fine bubble” or “ultrafine bubble”, instead of

“nanobubble” in ISO/TC 281 documents..................................................................................................................................... 4

Bibliography ................................................................................................................................................................................................................................ 6

© ISO 2017 – All rights reserved iii
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ISO 20480-1:2017(E)
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 on 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 the following

URL: w w w . i s o .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
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ISO 20480-1:2017(E)
Introduction

Applications 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 therefore 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 applications 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, larger

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 v
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INTERNATIONAL STANDARD ISO 20480-1:2017(E)
Fine bubble technology — General principles for usage and
measurement of fine bubbles —
Part 1:
Terminology
1 Scope

This 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 references
There are no normative references in this document.
3 Terms and definitions
For 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 at http:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
bubble
gas in a medium enclosed by an interface
3.2
fine bubble
bubble (3.1) with a volume equivalent diameter (3.8) of less than 100 μm
Note 1 to entry: 100 μm is also represented as 1 × 10 m.

Note 2 to entry: Annex A provides further information on the use of terms “fine bubble” or “ultraf

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