ISO 5156:2022

INTERNATIONAL ISO
STANDARD 5156
First edition
2022-12
Corrosion of metals and alloys —
Corrosion test method for disinfectant
— Total immersion method
Corrosion des métaux et alliages — Méthode d'essai de corrosion pour
les désinfectants — Méthode d'immersion totale
Reference number
© ISO 2022
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Apparatus . 1
4.1 Test cell . 1
4.2 Specimen-supporting device . 2
4.3 Analytical balance . 2
4.4 Constant-temperature device . 2
4.5 Evaporation-preventing device . 2
4.6 Digital microscope . 2
4.7 Oven. 3
4.8 Vernier calliper . 3
5 Reagents and materials . 3
6 Test specimens . 3
7 Precleaning of test specimens . 3
8 Conditioning . 3
9 Procedure .4
10 Test report . 5
Annex A (informative) Recommended report form . 6
Bibliography . 8
iii
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 156, Corrosion of metals and alloys.
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
Introduction
Disinfecting is one of the most important means of preventing the spread of infectious diseases. In
the current environment, it is of great practical significance to establish International Standards for
corrosion detection of disinfectants scientifically. This document is intended to provide a basis for
corrosion detection of disinfectants and to help prevent potential hazards caused by improper use of
disinfectants worldwide.
This document only provides the corrosion test method for disinfectants under the condition of total
immersion. Other corrosion test methods are not included in this document. This document does not
include the evaluation of corrosion test results.
v
INTERNATIONAL STANDARD ISO 5156:2022(E)
Corrosion of metals and alloys — Corrosion test method
for disinfectant — Total immersion method
1 Scope
This document specifies a method for testing the corrosivity of disinfectants against metals and
alloys (for example, apparatus, reagents and materials, test specimens, pre-cleaning of test specimens,
conditioning, procedure, test report) under total immersion conditions.
This document is applicable to the determination of corrosion of disinfectants to metal materials under
total immersion. Other corrosion test methods are not included in this document, and this document
does not include the evaluation of corrosion test results.
This document does not purport to address all of the safety concerns, if any, associated with its use. It is
the responsibility for the user of this docume
...