ISO 22601:2019
(Main)Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for determination of phenol oxidative decomposition performance of semiconducting photocatalytic materials by quantitative analysis of total organic carbon (TOC)
Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for determination of phenol oxidative decomposition performance of semiconducting photocatalytic materials by quantitative analysis of total organic carbon (TOC)
This document provides a testing method for testing phenol oxidative decomposition performance of semiconducting photocatalytic materials or made of a material adsorbed with photocatalyst to its surface for the purpose of purifying water polluting substances in water making use of photocatalytic performance as test piece. The test piece can be planar, spherical, flake or block shape. A test piece that can elute hydrocarbon or the like by immersion into water or phenol aqueous solution or by light irradiation, a semiconducting photocatalytic material that cannot maintain its shape or a powdery semiconducting photocatalytic material are excluded from the scope of application, since they cannot be evaluated.
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INTERNATIONAL ISO
STANDARD 22601
First edition
2019-09
Fine ceramics (advanced ceramics,
advanced technical ceramics) — Test
method for determination of phenol
oxidative decomposition performance
of semiconducting photocatalytic
materials by quantitative analysis of
total organic carbon (TOC)
Reference number
©
ISO 2019
© ISO 2019
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 2019 – All rights reserved
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 2
5 Principle . 2
6 Materials . 3
6.1 Chemicals and implements . 3
6.1.1 Reagent . . 3
6.1.2 Purified water . 3
6.1.3 Purified air . 3
6.1.4 Purified water saturated with dissolved oxygen . 3
7 Test device and instrument . 3
7.1 Test vessel . 3
7.2 Reserve container . 3
7.3 UV irradiation light source . 4
7.4 UV radiometer . 4
7.5 UV light intensity . 4
7.6 pH meter . 4
7.7 TOC measuring device . 4
8 Arrangement of test method . 4
8.1 Measuring device setup . 4
8.2 Test solution feeding device . 4
8.3 Instruments for air flow . 5
9 Test material . 5
9.1 Test piece . 5
9.2 Pre-treatment of the test piece . 5
10 Procedure of the measurement . 6
10.1 Test temperature . 6
10.2 Other test condition . 6
10.3 Preparation for test . 6
10.4 Procedure of the measurement . 6
11 Evaluation of results . 7
11.1 Evaluation of dark condition . 7
11.2 Evaluation of illuminated condition . 7
11.3 Phenol oxidative decomposition performance . 7
11.4 Condition for establishing a successful test . 7
12 Test report . 8
Annex A (informative) Example of suitable test vessel . 9
Annex B (informative) Example of suitable test vessel .10
Annex C (informative) Example of test position of test vessel and suitable measuring device
component .11
Annex D (informative) Example of data evaluation .13
Annex E (informative) Results of the interlaboratory test .15
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 206, Fine ceramics.
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 2019 – All rights reserved
Introduction
Since photocatalysts have a wide range of functions such as purification of air or water, antibacterial
effect and self-cleaning, many application products that make use of said functions are developed.
Photocatalyst-applied products for water purification are expected to exert oxidative decomposing
performance against organic compounds composed of hydrocarbon, which is a water polluting
substance. In line with this, there is a necessity for developing a testing method for measuring the
oxidative decomposition against water polluting substances. This document stipulates a test method
for measuring the performance of a semiconducting photocatalytic material irradiated with UV
light in water for the oxidative decomposition of hydrocarbon such as phenol and the byproducts as
intermediate produced by the photocatalysis, by the TOC method.
An examples of data evaluation is given in Annex D while the results of the interlaboratory tests are
given in Annex E.
INTERNATIONAL STANDARD ISO 22601:2019(E)
Fine ceramics (advanced ceramics, advanced technical
ceramics) — Test method for determination of phenol
oxidative decomposition performance of semiconducting
photocatalytic materials by quantitative analysis of total
organic carbon (TOC)
1 Scope
This document provides a testing method for testing phenol oxidative decomposition performance
of semiconducting photocatalytic materials or made of a material adsorbed with photocatalyst to its
surface for the purpose of purifying water polluting substances in water making use of photocatalytic
performance as test piece. The test piece can be planar, spherical, flake or block shape. A test piece
that can elute hydrocarbon or the like by immersion into water or phenol aqueous solution or by light
irradiation, a semiconducting photocatalytic material that cannot maintain its shape or a powdery
semiconducting photocatalytic material are excluded from the scope of application, since they cannot
be evaluated.
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 8425, Water quality—Guidelines for the determination of total organic carbon (TOC) and dissolved
organic carbon (
...
INTERNATIONAL ISO
STANDARD 22601
First edition
2019-09
Fine ceramics (advanced ceramics,
advanced technical ceramics) — Test
method for determination of phenol
oxidative decomposition performance
of semiconducting photocatalytic
materials by quantitative analysis of
total organic carbon (TOC)
Reference number
©
ISO 2019
© ISO 2019
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 2019 – All rights reserved
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 2
5 Principle . 2
6 Materials . 3
6.1 Chemicals and implements . 3
6.1.1 Reagent . . 3
6.1.2 Purified water . 3
6.1.3 Purified air . 3
6.1.4 Purified water saturated with dissolved oxygen . 3
7 Test device and instrument . 3
7.1 Test vessel . 3
7.2 Reserve container . 3
7.3 UV irradiation light source . 4
7.4 UV radiometer . 4
7.5 UV light intensity . 4
7.6 pH meter . 4
7.7 TOC measuring device . 4
8 Arrangement of test method . 4
8.1 Measuring device setup . 4
8.2 Test solution feeding device . 4
8.3 Instruments for air flow . 5
9 Test material . 5
9.1 Test piece . 5
9.2 Pre-treatment of the test piece . 5
10 Procedure of the measurement . 6
10.1 Test temperature . 6
10.2 Other test condition . 6
10.3 Preparation for test . 6
10.4 Procedure of the measurement . 6
11 Evaluation of results . 7
11.1 Evaluation of dark condition . 7
11.2 Evaluation of illuminated condition . 7
11.3 Phenol oxidative decomposition performance . 7
11.4 Condition for establishing a successful test . 7
12 Test report . 8
Annex A (informative) Example of suitable test vessel . 9
Annex B (informative) Example of suitable test vessel .10
Annex C (informative) Example of test position of test vessel and suitable measuring device
component .11
Annex D (informative) Example of data evaluation .13
Annex E (informative) Results of the interlaboratory test .15
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 206, Fine ceramics.
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 2019 – All rights reserved
Introduction
Since photocatalysts have a wide range of functions such as purification of air or water, antibacterial
effect and self-cleaning, many application products that make use of said functions are developed.
Photocatalyst-applied products for water purification are expected to exert oxidative decomposing
performance against organic compounds composed of hydrocarbon, which is a water polluting
substance. In line with this, there is a necessity for developing a testing method for measuring the
oxidative decomposition against water polluting substances. This document stipulates a test method
for measuring the performance of a semiconducting photocatalytic material irradiated with UV
light in water for the oxidative decomposition of hydrocarbon such as phenol and the byproducts as
intermediate produced by the photocatalysis, by the TOC method.
An examples of data evaluation is given in Annex D while the results of the interlaboratory tests are
given in Annex E.
INTERNATIONAL STANDARD ISO 22601:2019(E)
Fine ceramics (advanced ceramics, advanced technical
ceramics) — Test method for determination of phenol
oxidative decomposition performance of semiconducting
photocatalytic materials by quantitative analysis of total
organic carbon (TOC)
1 Scope
This document provides a testing method for testing phenol oxidative decomposition performance
of semiconducting photocatalytic materials or made of a material adsorbed with photocatalyst to its
surface for the purpose of purifying water polluting substances in water making use of photocatalytic
performance as test piece. The test piece can be planar, spherical, flake or block shape. A test piece
that can elute hydrocarbon or the like by immersion into water or phenol aqueous solution or by light
irradiation, a semiconducting photocatalytic material that cannot maintain its shape or a powdery
semiconducting photocatalytic material are excluded from the scope of application, since they cannot
be evaluated.
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 8425, Water quality—Guidelines for the determination of total organic carbon (TOC) and dissolved
organic carbon (
...
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