SIST EN ISO 10062:2023
(Main)Corrosion tests in artificial atmosphere at very low concentrations of polluting gas(es) (ISO 10062:2022)
Corrosion tests in artificial atmosphere at very low concentrations of polluting gas(es) (ISO 10062:2022)
ISO 10062:2006 specifies tests which are intended to determine the influence of one or more flowing polluting gas(es) at volume fractions less than or equal to 0,000001 on test samples and/or articles of metals and alloys with or without corrosion protection under determined conditions of temperature and relative humidity.
These tests apply to metals and their alloys, metallic coatings (anodic and cathodic), metals with conversion coatings, metals with anodic oxide coatings, and metals with organic coatings.
Korrosionsprüfungen in künstlicher Atmosphäre mit sehr niedrigen Konzentrationen von Schadgas(en) (ISO 10062:2022)
Dieses Dokument legt Prüfverfahren fest, die zur Bestimmung des Einflusses von einem oder mehreren Schadgas(en) in Volumenanteilen von höchstens 10−6 auf Proben und/oder Gegenständen aus Metallen und Legierungen mit oder ohne Korrosionsschutz unter festgelegten Bedingungen für Temperatur und relative Feuchte vorgesehen sind.
Dieses Dokument ist anwendbar für
a) Metalle und ihre Legierungen,
b) metallische Überzüge (anodisch und kathodisch),
c) Metalle mit Umwandlungsschichten,
d) Metalle mit anodischen oxidischen Überzügen und Beschichtungen, und
e) Metalle mit organischen Beschichtungen.
Essais de corrosion en atmosphère artificielle à très faible concentration en gaz polluants (ISO 10062:2022)
L'ISO 10062:2006 spécifie des essais ayant pour but de déterminer les effets d'un balayage par un ou plusieurs gaz polluants, à des fractions volumiques inférieures ou égales à 0,000001 sur des éprouvettes et/ou des objets en matériaux métalliques et alliages avec ou sans protection contre la corrosion dans des conditions déterminées de température et d'humidité relative.
Ces essais s'appliquent aux métaux et à leurs alliages, aux revêtements métalliques (anodiques et cathodiques), aux métaux avec des couches de conversion, aux métaux avec des revêtements d'oxyde anodiques et aux métaux avec des revêtements organiques.
Korozijski preskusi v umetni atmosferi pri zelo majhnih koncentracijah škodljivih plinov (ISO 10062:2022)
ISO 10062:2006 določa preskuse, ki so namenjeni ugotavljanju vpliva enega ali več tekočih škodljivih plinov pri volumskih deležih, manjših ali enakih 0,000001, na preskusne vzorce in/ali izdelke iz kovin in zlitin z zaščito pred korozijo ali brez nje pod določenimi pogoji temperature in relativne vlažnosti.
Preskusi se uporabljajo za kovine in njihove zlitine, kovinske prevleke (anodne in katodne), kovine s konverzijskimi prevlekami, kovine z anodno oksidnimi prevlekami in kovine z organskimi prevlekami.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 10062:2023
01-februar-2023
Nadomešča:
SIST EN ISO 10062:2008
Korozijski preskusi v umetni atmosferi pri zelo majhnih koncentracijah škodljivih
plinov (ISO 10062:2022)
Corrosion tests in artificial atmosphere at very low concentrations of polluting gas(es)
(ISO 10062:2022)
Korrosionsprüfungen in künstlicher Atmosphäre mit sehr niedrigen Konzentrationen von
Schadgas(en) (ISO 10062:2022)
Essais de corrosion en atmosphère artificielle à très faible concentration en gaz
polluants (ISO 10062:2022)
Ta slovenski standard je istoveten z: EN ISO 10062:2022
ICS:
77.060 Korozija kovin Corrosion of metals
SIST EN ISO 10062:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 10062:2023
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SIST EN ISO 10062:2023
EN ISO 10062
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2022
EUROPÄISCHE NORM
ICS 77.060 Supersedes EN ISO 10062:2008
English Version
Corrosion tests in artificial atmosphere at very low
concentrations of polluting gas(es) (ISO 10062:2022)
Essais de corrosion en atmosphère artificielle à très Korrosionsprüfungen in künstlicher Atmosphäre mit
faible concentration en gaz polluants (ISO 10062:2022) sehr niedrigen Konzentrationen von Schadgas(en) (ISO
10062:2022)
This European Standard was approved by CEN on 13 November 2022.
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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10062:2022 E
worldwide for CEN national Members.
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SIST EN ISO 10062:2023
EN ISO 10062:2022 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 10062:2023
EN ISO 10062:2022 (E)
European foreword
This document (EN ISO 10062:2022) 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 May 2023, and conflicting national standards shall be
withdrawn at the latest by May 2023.
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 10062:2008.
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 10062:2022 has been approved by CEN as EN ISO 10062:2022 without any modification.
3
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SIST EN ISO 10062:2023
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SIST EN ISO 10062:2023
INTERNATIONAL ISO
STANDARD 10062
Third edition
2022-11
Corrosion tests in artificial
atmosphere at very low
concentrations of polluting gas(es)
Essais de corrosion en atmosphère artificielle à très faible
concentration en gaz polluants
Reference number
ISO 10062:2022(E)
© ISO 2022
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SIST EN ISO 10062:2023
ISO 10062:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© 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
© ISO 2022 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 10062:2023
ISO 10062:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 N ormative references . 1
3 T erms and definitions . 1
4 A pparatus . 1
5 T est methods . 2
5.1 T est severity . 2
5.1.1 G eneral . 2
5.1.2 Suggested test methods . 2
5.1.3 Test duration . 3
5.2 T reatment of the specimens prior to testing (see Clause 6) . 3
5.3 E xamination of the specimens prior to testing . 3
5.4 F illing of the test chamber . 3
5.5 Procedure . 4
5.5.1 Exposure time . . 4
5.5.2 T est duration . 4
5 . 5 . 3 Tes t pr o ce du r e. 4
5.6 M onitoring of test behaviour . 5
5.7 P ost-test storage . . 5
6 I nformation to be given in the relevant specification. 5
7 E xpression of results . 5
8 Te s t r ep or t . 5
Annex A (normative) Specifications for apparatus for corrosion tests in artificial
atmosphere . 7
Annex B (informative) Typical apparatus for polluting gas corrosion tests .10
Bibliography .11
iii
© ISO 2022 – All rights reserved
---------------------- Page: 9 ----------------------
SIST EN ISO 10062:2023
ISO 10062:2022(E)
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, in
collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC
262, Metallic and other inorganic coatings, in accordance with the Agreement on technical cooperation
between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 10062:2006), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— simplified method has been deleted due to safety issues for operator;
— warnings about each gas have been added in 5.1.2;
— Annex A has been changed to normative annex;
— the installation environment has been added to Annex A.
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 2022 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 10062:2023
ISO 10062:2022(E)
Introduction
Products with, for example, sensitive electrical functions, can, during storage or operation in indoor
locations, be affected by atmospheric corrosion dependent on climatic factors such as temperature,
relative humidity, air velocity and rate of change caused by temperature and humidity. Additionally,
gaseous pollutants can seriously affect the rate of corrosion, as well as the occurrence of different
corrosion mechanisms. Contaminants on the surface, such as salt, dust, oil and compounds liberated
from plastics, can also affect the rate and mechanism of corrosion.
Different corrosion-promoting gaseous pollutants dominate in different field environments:
— sulfur dioxide and nitrogen oxides in atmospheres influenced by combustion of fossil fuels and in
traffic environments,
— hydrogen sulfide in atmospheres in the vicinity of petrochemical and steel industry, decaying
organic matter, stagnant waters and animal shelters, and
— hydrogen sulfide and chlorine compounds in the vicinity of pulp and paper industry; if chlorine is
used for bleaching.
Those gaseous pollutants are known to act as single corrosion-promoting factors. However, in
atmospheres where more than one gaseous pollutant is present, synergistic effects can be initiated.
As a result, a considerable increase in the corrosion rate can occur, compared to the case when the
different gaseous pollutants act as single corrosion-promoting factors.
This document is intended to
a) specify a general method using atmospheres polluted by one or more gases at very low volume
−6
fractions ≤10 under specified conditions of temperature and relative humidity, so as to avoid
condensation phenomena during the test,
b) specify the test apparatus and procedure required to achieve the best possible reproducibility, and
c) assess performance under test conditions which accelerate corrosion; as knowledge of operating
conditions proceeds, more suitable pollutants or pollutant mixtures can be used.
This document is not intended to be used for comparative testing as a means of ranking different
materials relative to each other with respect to corrosion resistance or as a means of predicting long-
term corrosion resistance of the tested material.
v
© ISO 2022 – All rights reserved
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SIST EN ISO 10062:2023
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SIST EN ISO 10062:2023
INTERNATIONAL STANDARD ISO 10062:2022(E)
Corrosion tests in artificial atmosphere at very low
concentrations of polluting gas(es)
1 S cope
This document specifies tests which are intended to determine the influence of one or more flowing
−6
polluting gas(es) at volume fractions less than or equal to 10 on test samples and/or articles of metals
and alloys with or without corrosion protection under determined conditions of temperature and
relative humidity.
This document is applicable to
a) metals and their alloys,
b) metallic coatings (anodic and cathodic),
c) metals with conversion coatings,
d) metals with anodic oxide coatings, and
e) metals with organic coatings.
2 Normat ive 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 554, Standard atmospheres for conditioning and/or testing — Specifications
ISO 558, Conditioning and testing — Standard atmospheres — Definitions
3 T erms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
exposure time
interval of time elapsed between the moment when the specimens are introduced into the test chamber
and the end of the test
3.2
test duration
interval of time during which the specimens are exposed to polluting gases
4 A pparatus
WARNING — Safety rules for personnel: Handling of the gases used for testing can be hazardous
and shall be done by skilled personnel trained to handle such gases. The test equipment shall be
1
© ISO 2022 – All rights reserved
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SIST EN ISO 10062:2023
ISO 10062:2022(E)
used and maintained by skilled personnel, not only so that the tests can be performed correctly,
but also because of the hazards to health and safety that are involved.
Special attention shall be paid to equipment design and the choice of construction materials, in order
that the conditions (less than ±1 °C for temperature and less than ±3 % for relative humidity) are
uniformly consistent throughout the working space, able to ensure no condensation in the test chamber
and are repeatable.
The apparatus shall enable the use, singly or in
...
SLOVENSKI STANDARD
oSIST prEN ISO 10062:2022
01-maj-2022
Korozijski preskusi v umetni atmosferi pri zelo majhnih koncentracijah škodljivih
plinov (ISO/DIS 10062:2022)
Corrosion tests in artificial atmosphere at very low concentrations of polluting gas(es)
(ISO/DIS 10062:2022)
Korrosionsprüfungen in künstlicher Atmosphäre mit sehr niedrigen Konzentrationen von
Schadgas(en) (ISO/DIS 10062:2022)
Essais de corrosion en atmosphère artificielle à très faible concentration en gaz
polluants (ISO/DIS 10062:2022)
Ta slovenski standard je istoveten z: prEN ISO 10062
ICS:
77.060 Korozija kovin Corrosion of metals
oSIST prEN ISO 10062:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 10062:2022
---------------------- Page: 2 ----------------------
oSIST prEN ISO 10062:2022
DRAFT INTERNATIONAL STANDARD
ISO/DIS 10062
ISO/TC 156 Secretariat: SAC
Voting begins on: Voting terminates on:
2022-03-17 2022-06-09
Corrosion tests in artificial atmosphere at very low
concentrations of polluting gas(es)
Corrosion des métaux et alliages — Essais de corrosion en atmosphère artificielle à très faible
concentration en gaz polluants
ICS: 77.060
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 10062:2022(E)
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 SUPPORTING DOCUMENTATION. © ISO 2022
---------------------- Page: 3 ----------------------
oSIST prEN ISO 10062:2022
ISO/DIS 10062:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© 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
© ISO 2022 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 10062:2022
ISO/DIS 10062:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Apparatus . 2
5 Test methods . 2
5.1 Test severity . 2
5.1.1 General . 2
5.1.2 Suggested test methods . 2
5.1.3 Test duration . 4
5.2 Treatment of the specimens prior to testing (see Clause 6) . 4
5.3 Examination of the specimens prior to testing . 4
5.4 Filling of the test chamber . 4
5.5 Procedure . 5
5.5.1 Basis for calculation . 5
5.5.2 Test procedure. 5
5.6 Monitoring of test behaviour . 5
5.7 Post-test storage . . 6
6 Information to be given in the relevant specification. 6
7 Expression of results . 6
8 Test report . 6
Annex A (informative) Specifications for apparatus for corrosion tests in artificial
atmosphere . 8
Annex B (informative) Typical apparatus for polluting gas corrosion tests .11
Bibliography .12
iii
© ISO 2022 – All rights reserved
---------------------- Page: 5 ----------------------
oSIST prEN ISO 10062:2022
ISO/DIS 10062:2022(E)
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.
This third edition cancels and replaces the second edition (ISO 10062:2006), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— simplified method has been deleted due to safety issues for operator;
— warnings about each gas have been added in 5.1.2:
— installation environment has been added in Annex A.
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 2022 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 10062:2022
ISO/DIS 10062:2022(E)
Introduction
Products with, for example, sensitive electrical functions, may, during storage or operation in indoor
locations, be affected by atmospheric corrosion dependent on climatic factors such as temperature,
relative humidity, air velocity and rate of change caused by temperature and humidity. Additionally,
gaseous pollutants may seriously affect the rate of corrosion, as well as the occurrence of different
corrosion mechanisms. Contaminants on the surface, such as salt, dust, oil and compounds liberated
from plastics, may also affect the rate and mechanism of corrosion.
Different corrosion-promoting gaseous pollutants dominate in different field environments:
— sulfur dioxide and nitrogen oxides in atmospheres influenced by combustion of fossil fuels and in
traffic environments,
— hydrogen sulfide in atmospheres in the vicinity of petrochemical and steel industry, decaying
organic matter, stagnant waters and animal shelters, and
— hydrogen sulfide and chlorine compounds in the vicinity of pulp and paper industry; if chlorine is
used for bleaching
Those gaseous pollutants are known to act as single corrosion-promoting factors. However, in
atmospheres where more than one gaseous pollutant is present, synergistic effects may be initiated.
As a result, a considerable increase in the corrosion rate may occur, compared to the case when the
different gaseous pollutants act as single corrosion-promoting factors.
This document is intended to
a) define a general method using atmospheres polluted by one or more gases at very low volume
−6
fractions ≤ 10 under specified conditions of temperature and relative humidity, so as to avoid
condensation phenomena during the test,
b) define the test apparatus and procedure required to achieve the best possible reproducibility,
c) assess performance under test conditions which accelerate corrosion; as knowledge of operating
conditions proceeds, more suitable pollutants or pollutant mixtures could be used.
v
© ISO 2022 – All rights reserved
---------------------- Page: 7 ----------------------
oSIST prEN ISO 10062:2022
---------------------- Page: 8 ----------------------
oSIST prEN ISO 10062:2022
DRAFT INTERNATIONAL STANDARD ISO/DIS 10062:2022(E)
Corrosion tests in artificial atmosphere at very low
concentrations of polluting gas(es)
1 Scope
This document specifies tests which are intended to determine the influence of one or more flowing
−6
polluting gas(es) at volume fractions less than or equal to 10 on test samples and/or articles of metals
and alloys with or without corrosion protection under determined conditions of temperature and
relative humidity.
These tests apply to
a) metals and their alloys,
b) metallic coatings (anodic and cathodic),
c) metals with conversion coatings,
d) metals with anodic oxide coatings,
e) metals with organic coatings.
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 554, Standard atmospheres for conditioning and/or testing — Specifications
ISO 558, Conditioning and testing — Standard atmospheres — Definitions
ISO 7384, Corrosion tests in artificial atmosphere — General requirements
ISO 8407, Corrosion of metals and alloys — Removal of corrosion products from corrosion test specimens
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
exposure time
interval of time elapsed between the moment when the specimens are introduced into the test chamber
and the end of the test
3.2
test duration
interval of time during which the specimens are exposed to polluting gases
1
© ISO 2022 – All rights reserved
---------------------- Page: 9 ----------------------
oSIST prEN ISO 10062:2022
ISO/DIS 10062:2022(E)
4 Apparatus
WARNING — Safety rules for personnel: Handling of the gases used for testing can be hazardous
and must be done by skilled personnel trained to handle such gases. The test equipment must be
used and maintained by skilled personnel, not only so that the tests can be performed correctly,
but also because of the hazards to health and safety that are involved.
Special attention shall be paid to equipment design and the choice of construction materials, in order
that the conditions (less than ± 1 °C for temperature and less than ± 3 % for relative humidity) are
uniformly consistent throughout the working space, able to ensure no condensation in the test chamber,
and are repeatable.
The apparatus shall enable the use, singly or in mixtures, of polluting gas(es) such as SO , H S, Cl and
2 2 2
NO up to at least the concentration required, for each gas, by the test method.
2
The important parameters are
a) the materials used for the test chamber and the gas handling system,
b) the geometry of the test chamber,
c) the rate and pattern of the gas flow,
d) the homogeneity of gas mixing,
e) the incident illumination (see A.1.6)
The apparatus shall be constructed according to Annex A and shall meet its requirements.
A typical apparatus for polluting-gas corrosion tests is also shown in Annex B.
5 Test methods
5.1 Test severity
5.1.1 General
The test severity, to be given in the relevant specification, is defined by
— the type, concentration and flow rate of polluting gas,
— the temperature,
— the relative humidity, and
— the test duration.
5.1.2 Suggested test methods
The method to be used depends upon the purposes of the test, the nature of the metals and alloys and
the type of protection to be tested.
WARNING — Sulfur dioxide (SO , CAS no. 7446-09-5) is toxic, corrosive and irritating. Refer to
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Safety Data Sheet for details. Handling of sulfur dioxide shall be restricted to skilled personnel
or conducted under their control. The apparatus shall be used and maintained by skilled
personnel, not only so that the procedures can be performed correctly, but also because of the
hazards to health and safety that are involved.
WARNING — Hydrogen sulfide (H S, CAS no. 7783-06-4) is flammable gas, toxic, corrosive,
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irritating and very toxic to aquatic life. Refer to Safety Data Sheet for details. Handling of
hydrogen sulfide shall be restricted to skilled personnel or conducted under their control. The
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© ISO 2022 – All rights reserved
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oSIST prEN ISO 10062:2022
ISO/DIS 10062:2022(E)
apparatus shall be used and maintained by skilled personnel, not only so that the procedures can
be performed correctly, but also because of the hazards to health and safety that are involved.
WARNING — Chlorine (Cl , CAS no. 7782-50-5) is oxidizing gas, toxic, corrosive and irritating.
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Refer to Safety Data Sheet for details. Handling of chlorine shall be restricted to skilled
personnel or conducted under their control. The apparatus shall be used and maintained by
skilled personnel, not only so that the procedures c
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