ISO/TR 5604:2024

Electrochemical noise measurement for assessing the protection of metal afforded by organic coatings

This document describes the principle of electrochemical noise measurement (EN), specifically focusing on the application of the technique to indicate the level of protection provided by an organic coating to the underlying metal. It discusses the principles behind the measurement method but also the type of electrochemical apparatus, the experimental set-up and electrodes configurations, the presentation of measured data, and analysis of results that have been used in the work done so far and reported in the references. This work has mainly been done in the laboratory, and there are some examples of work conducted in the field. NOTE At the time of publication of this document, electrochemical noise measurement for coatings is mainly used by a number of academic groups. This document aims to encourage more general application of this method, particularly to field work.

Mesurage du bruit électrochimique pour l'évaluation de la protection du métal induit par des revêtements organiques

General Information

• Status: Published
• Publication Date: 08-Feb-2024
• ICS: 87.040 - Paints and varnishes
• Technical Committee: ISO/TC 35/SC 9 - General test methods for paints and varnishes
• Drafting Committee: ISO/TC 35/SC 9 - General test methods for paints and varnishes
• Current Stage: 6060 - International Standard published
• Start Date: 09-Feb-2024
• Completion Date: 09-Feb-2024

Standards Content (Sample)

FINAL
TECHNICAL ISO/DTR
DRAFT
REPORT 5604
ISO/TC 35/SC 9
Electrochemical noise measurement
Secretariat: BSI
for assessing the protection of metal
Voting begins on:
2023-08-31 afforded by organic coatings
Voting terminates on:
2023-10-26
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/DTR 5604:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023

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ISO/DTR 5604:2023(E)
FINAL
TECHNICAL ISO/DTR
DRAFT
REPORT 5604
ISO/TC 35/SC 9
Electrochemical noise measurement
Secretariat: BSI
for assessing the protection of metal
Voting begins on:
afforded by organic coatings
Voting terminates on:
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
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.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: [phone]
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: [e-mail]
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/DTR 5604:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
  © ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023

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ISO/DTR 5604:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principles . 2
4.1 Organically coated metal exposed to a corrosive environment – how a resistance
measurement can indicate protection . 2
4.2 Generation of electrochemical noise from bare and coated metal . 3
4 . 3 E v a lu at ion c r it er i a . 3
5 Apparatus . 3
5.1 Test cell . 3
5.2 Field or site work . 3
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ISO/TR DTR 5604:2023(E)
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ISO TC 35/SC 9/WG 29
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Secretariat: BSI
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Date: 2023-06-3008-17
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Paints and varnishes — Electrochemical noise measurement for assessing the protection of
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metal afforded by organic coatings
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Warning for WDs and CDs
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This document is not an ISO International Standard. It is distributed for review and comment. It is subject to
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change without notice and may not be referred to as an International Standard.
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Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of
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ISO/TR 5604:2023(E)
© ISO 2023
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All rights reserved. Unless otherwise specified, or required in the context of its implementation, no
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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’sISO's member body in the country of the requester.
Formatted: Font: 11 pt, Font color: Blue
Formatted: Font: 11 pt, Font color: Blue
ISO copyright officeCopyright Office
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CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
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Phone: + 41 22 749 01 11
cm, Adjust space between Latin and Asian text, Adjust
space between Asian text and numbers, Border: Left:
Email: [e-mail]
(No border), Right: (No border)
Email: [e-mail]
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Website: www.iso.orgwww.iso.org Formatted: Font: 11 pt, Font color: Blue, English (United
Kingdom)
Published in Switzerland.
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Kingdom)
ii © ISO 2023 – All rights reserved

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ISO/TR 5604:2023(E)
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Contents
between Latin and Asian text, Don't adjust space
between Asian text and numbers
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principles . 2
4.1 Organically coated metal exposed to a corrosive environment – how a resistance
measurement can indicate protection . 2
4.2 Generation of electrochemical noise from bare and coated metal .
...