ISO 20480-2:2018

Fine bubble technology — General principles for usage and measurement of fine bubbles — Part 2: Categorization of the attributes of fine bubbles

This document establishes the general principles and descriptors to allow users to describe the quality of the liquid media and the size and concentration of fine bubbles. It is also intended to allow users to classify fine bubbles by rise velocity.

Technologie des fines bulles — Principes généraux pour l'utilisation et la mesure des fines bulles — Partie 2: Classification des attributs des fines bulles

General Information

• Status: Published
• Publication Date: 14-Nov-2018
• 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: 9060 - Close of review
• Start Date: 04-Jun-2029

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 20480-2
First edition
2018-11
Fine bubble technology — General
principles for usage and measurement
of fine bubbles —
Part 2:
Categorization of the attributes of
fine bubbles
Technologie des fines bulles — Principes généraux pour l'utilisation et
la mesure des fines bulles —
Partie 2: Classification des attributs des fines bulles
Reference number
ISO 20480-2:2018(E)
©
ISO 2018

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ISO 20480-2:2018(E)

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© ISO 2018
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ii © ISO 2018 – All rights reserved

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ISO 20480-2:2018(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General principles for usage and measurement of fine bubbles . 1
4.1 Standards system of fine bubble technology . 1
4.2 Quality of liquid medium. 2
5 Expression of attributes for fine bubbles . 2
5.1 Application of size index and number concentration index . 2
5.1.1 General. 2
5.1.2 Size index rules . 3
5.1.3 Number concentration principles . 3
5.1.4 Number concentration index rules . 3
5.2 Expression of class of fine bubbles in dimensional characteristics . 3
6 Classification of the attributes of fine bubbles by rise velocity . 4
6.1 Attributes of fine bubbles by rise velocity . 4
6.2 Classification of fine bubbles by rise velocity. 5
6.2.1 General. 5
6.2.2 Classification and definition of regions . 6
Annex A (informative) Observation examples of ultrafine bubble number stability in liquid
...