EN ISO 11130:2018

SLOVENSKI STANDARD
01-maj-2018
1DGRPHãþD
SIST EN ISO 11130:2010
.RUR]LMDNRYLQLQ]OLWLQ3UHVNXV]L]PHQLþQLPSRWDSOMDQMHPYUD]WRSLQDKVROL,62

Corrosion of metals and alloys - Alternate immersion test in salt solution (ISO
11130:2017)
Korrosion von Metallen und Legierungen - Wechseltauchprüfung in Salzlösung (ISO
11130:2017)
Corrosion des métaux et alliages - Essai en immersions alternées en solution saline (ISO
11130:2017)
Ta slovenski standard je istoveten z: EN ISO 11130:2018
ICS:
77.060 Korozija kovin Corrosion of metals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 11130
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2018
EUROPÄISCHE NORM
ICS 77.060 Supersedes EN ISO 11130:2010
English Version
Corrosion of metals and alloys - Alternate immersion test
in salt solution (ISO 11130:2017)
Corrosion des métaux et alliages - Essai en immersions Korrosion von Metallen und Legierungen -
alternées en solution saline (ISO 11130:2017) Wechseltauchprüfung in Salzlösung (ISO 11130:2017)
This European Standard was approved by CEN on 21 November 2017.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11130:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
European foreword
This document (EN ISO 11130:2018) 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 September 2018, and conflicting national standards
shall be withdrawn at the latest by September 2018.
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 11130:2010.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 11130:2017 has been approved by CEN as EN ISO 11130:2018 without any modification.

INTERNATIONAL ISO
STANDARD 11130
Third edition
2017-12
Corrosion of metals and alloys —
Alternate immersion test in salt
solution
Corrosion des métaux et alliages — Essai en immersions alternées en
solution saline
Reference number
ISO 11130:2017(E)
©
ISO 2017
ISO 11130:2017(E)
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved

ISO 11130:2017(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Test solution . 2
5.1 General . 2
5.2 Preparation . 2
6 Apparatus . 2
6.1 General . 2
6.2 Materials of construction . 3
6.3 Test specimen holders . 3
6.4 Air circulation . 3
7 Test specimens. 3
8 Procedure. 4
8.1 Test conditions . 4
8.2 Immersion . 4
9 Cleaning of test specimens . 4
10 Assessment of r esults . 5
11 Test report . 5
Annex A (informative) Suggested test solutions . 7
Annex B (informative) Suitable apparatus for alternate immersion tests in salt solution .10
Bibliography .12
ISO 11130:2017(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 on 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 the following
URL: 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 11130:2010), which has been technically
revised with the following changes:
— harmonization with ISO 9227;
— revision of the temperature and relative humidity of drying conditions.
iv © ISO 2017 – All rights reserved

ISO 11130:2017(E)
Introduction
Corrosion of metals is influenced by factors which can vary significantly with environmental conditions.
Therefore, corrosion resistance determined for metals during alternate immersion testing as described
in this document can vary greatly with the test solution selected, the temperature during immersion
and the temperature and humidity during the drying periods of the test.
Consequently, the result of an alternate immersion corrosion test is not taken as an indication of the
corrosion resistance of the metal tested in all the different service environments where the metal can
be used.
Nevertheless, results obtained by the method described in this document can indicate the relative
corrosion resistance of different metals under in-service conditions, in particular when the service
environment is similar to the test solution selected. The method can also be used to test metals under
an applied tensile stress.
INTERNATIONAL STANDARD ISO 11130:2017(E)
Corrosion of metals and alloys — Alternate immersion test
in salt solution
1 Scope
This document specifies a method for assessing the corrosion resistance of metals by an alternate
immersion test in salt solution, with or without applied stress.
The test is particularly suitable for quality control during the manufacture of metals including
aluminium alloys and ferrous materials, and also for assessment purposes during alloy development.
Depending upon the chemical composition of the test solution, the test can be used to simulate the
corrosive effects of marine splash zones, de-icing fluids and acid salt environments.
The term “metal” as used in this document includes metallic materials with or without corrosion
protection.
This document is applicable to
— metals and their alloys,
— certain metallic coatings (anodic and cathodic with respect to the substrate),
— certain conversion coatings,
— certain anodic oxide coating, and
— organic coatings on metals.
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 8044, Corrosion of metals and alloys — Basic terms and definitions
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 8044 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
4 Principle
The test consists of the immersion of a test specimen, stressed in accordance with ISO 7539-1 or
unstressed, in a salt solution, followed by withdrawal and a period of drying.
The immersion and drying cycle is repeated at a given frequency for a given period. The extent of
attack is then evaluated. For many materials, this provides a more severe corrosion test than simple
continuous immersion.
ISO 11130:2017(E)
5 Test solution
5.1 General
During the analysis, unless otherwise stated, use only reagents of recognized analytical grade and
distilled or deionized water or water of equivalent purity.
The test solution shall be prepared in accordance with the prescribed specification. Otherwise, the
solution used should be the one most appropriate to the intended service conditions. Details of a neutral
salt solution that is suitable for simulating the corrosive effect of a marine environment are given in 5.2.
Details of three other test solutions suitable for simulating salt-based de-icing liquid, acid salt conditions
and ocean water are given in Annex A.
5.2 Preparation
The neutral salt solution is prepared by dissolving a sufficient mass of sodium chloride in water to give
a concentration of 35 g/l ± 1 g/l. The water used shall have a conductivity not higher than 2 mS/m
(equal to 20 µS/cm) at 25 °C ± 2 °C.
The sodium chloride shall contain a mass fraction of the heavy metals of copper (Cu), nickel (Ni) and
lead (Pb) in total less than 0,005 %. It shall not contain a mass fraction of sodium iodide more than
0,1 % and a mass fraction of total impurities more than 0,5 %, calculated for dry salt. Sodium chloride
with anti-caking agents should not be used, because such agents may act as corrosion inhibitors or
accelerators.
NOTE A useful sodium chloride salt grade is a grade named Ph. Eur/USP or JIS, ACS.
Prior to use, check the pH of the salt solution using electrometric measurement. Measurements of pH
shall be done using electrodes suitable for measuring pH in weakly buffered sodium chloride solutions
in deionized water. Make any necessary corrections by adding hydrochloric acid, sodium
...