SIST EN ISO 8044:2025
(Main)Corrosion of metals and alloys - Vocabulary (ISO 8044:2024)
Corrosion of metals and alloys - Vocabulary (ISO 8044:2024)
This document defines terms relating to corrosion that are widely used in modern science and technology. In addition, some definitions are supplemented with short explanations.
NOTE 1 Throughout the document, IUPAC rules for electrode potential signs are applied. The term "metal" is also used to include alloys and other metallic materials.
NOTE 2 Terms and definitions related to the inorganic surface treatment of metals are given in ISO 2080.
Korrosion von Metallen und Legierungen - Grundbegriffe (ISO 8044:2024)
Dieses Dokument definiert Korrosionsbegriffe, die in der modernen Wissenschaft und Technologie weit ver
breitet benutzt werden. In Ergänzung dazu sind einige Definitionen mit kurzen Erklärungen versehen.
ANMERKUNG1 In diesem Dokument werden die IUPAC-Empfehlungen für das Vorzeichen des Elektrodenpotentials beachtet. Der Begriff „Metall“ wird so verwendet, dass er Legierungen und andere metallene Werkstoffe einschließt.
ANMERKUNG2 Für Begriffe und Definitionen im Zusammenhang mit der anorganischen Oberflächenbehandlung von Metallen gilt ISO2080.
Corrosion des métaux et alliages - Vocabulaire (ISO 8044:2024)
Le présent document définit les termes relatifs à la corrosion qui sont largement employés dans les sciences et techniques modernes. Certaines définitions sont complétées par de brèves explications.
NOTE 1 Dans tout le document, on applique les conventions de l'IUPAC concernant le signe des potentiels d'électrode. Le terme «métal» est utilisé aussi pour désigner les alliages et autres matériaux métalliques.
NOTE 2 Les termes et définitions relatifs au traitement de surface des métaux avec des revêtements inorganiques sont donnés dans l'ISO 2080.
Korozija kovin in zlitin - Slovar (ISO 8044:2024)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2025
Korozija kovin in zlitin - Slovar (ISO 8044:2024)
Corrosion of metals and alloys - Vocabulary (ISO 8044:2024)
Korrosion von Metallen und Legierungen - Grundbegriffe (ISO 8044:2024)
Corrosion des métaux et alliages - Vocabulaire (ISO 8044:2024)
Ta slovenski standard je istoveten z: EN ISO 8044:2025
ICS:
01.040.77 Metalurgija (Slovarji) Metallurgy (Vocabularies)
77.060 Korozija kovin Corrosion of metals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 8044
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2025
EUROPÄISCHE NORM
ICS 01.040.77; 77.060 Supersedes EN ISO 8044:2020
English Version
Corrosion of metals and alloys - Vocabulary (ISO
8044:2024)
Corrosion des métaux et alliages - Vocabulaire (ISO Korrosion von Metallen und Legierungen - Begriffe
8044:2024) (ISO 8044:2024)
This European Standard was approved by CEN on 22 December 2024.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8044:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 8044:2025) has been prepared by Technical Committee ISO/TC 156 "Corrosion
of metals and alloys" in collaboration with Technical Committee CEN/TC 262 “Metallic and other
inorganic coatings, including for corrosion protection and corrosion testing of metals and alloys” the
secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by July 2025, and conflicting national standards shall be
withdrawn at the latest by July 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 8044:2020.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 8044:2024 has been approved by CEN as EN ISO 8044:2025 without any modification.
International
Standard
ISO 8044
Sixth edition
Corrosion of metals and alloys —
2024-12
Vocabulary
Corrosion des métaux et alliages — Vocabulaire
Reference number
ISO 8044:2024(en) © ISO 2024
ISO 8044:2024(en)
© ISO 2024
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
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Published in Switzerland
ii
ISO 8044:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms related to corrosion in general . 1
4 Terms related to types of corrosion . 3
5 Terms related to corrosion protection . 9
6 Terms related to corrosion testing . 10
7 Terms related to electrochemical matters .11
7.1 Electrochemical cell .11
7.2 Reaction rates . 15
7.3 Passivation .17
7.4 Electrochemical protection . .18
7.5 Electrochemical corrosion tests .19
Annex A (informative) Graphical representations of certain terms .21
Bibliography .23
Index .24
iii
ISO 8044:2024(en)
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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, in
collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC 262,
Metallic and other inorganic coatings, including for corrosion protection and corrosion testing of metals and
alloys, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This sixth edition cancels and replaces the fifth edition (ISO 8044:2020) which has been technically revised.
The main changes are as follows:
— several definitions have been changed, including the definition of corrosion;
— several editorial changes were made, including the addition of cross-references to other terms within the
definitions.
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 8044:2024(en)
Introduction
The definitions in this document have been drawn up with the objective of achieving a proper balance
between precision and simplicity. The main objective of this document is to provide definitions that can be
understood to have the same meaning by all concerned. Some corrosion terms in present use have developed
through common usage and are not always logical. It has not, therefore, been possible to define certain terms
in the form they are used in some countries. Because of the occasional conflicts between tradition and logic,
some definitions inevitably represent a compromise.
An example of this kind of conflict is the term “corrosion”. This has been used to mean the process, the
results of the process and the damage caused by the process. In this document, corrosion is understood to
mean the process. Any detectable result of corrosion in any part of a corrosion system is termed “corrosion
effect”. The term “corrosion damage” covers any impairment of the function of the technical system of which
the metal and the environment form a part. Consequently, the term “corrosion protection” implies that
the important thing is to avoid corrosion damage rather than to prevent corrosion, which in many cases is
impossible and sometimes not necessary.
v
International Standard ISO 8044:2024(en)
Corrosion of metals and alloys — Vocabulary
1 Scope
This document defines terms relating to corrosion that are widely used in modern science and technology.
In addition, some definitions are supplemented with short explanations.
Throughout the document, International Union of Pure and Applied Chemistry rules for electrode potential
signs are applied. The term “metal” is also used to include alloys and other metallic materials.
Terms and definitions related to the inorganic surface treatment of metals are given in ISO 2080.
2 Normative references
There are no normative refer
...
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