EN ISO 16151:2008

SLOVENSKI STANDARD
01-julij-2008
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Corrosion of metals and alloys - Accelerated cyclic tests with exposure to acidified salt
spray, "dry" and "wet" conditions (ISO 16151:2005)
Corrosion des métaux et alliages - Essais cycliques accélérés avec exposition au
brouillard salin acidifié, en conditions "seches" et en conditions "humides" (ISO
16151:2005)
Ta slovenski standard je istoveten z: EN ISO 16151:2008
ICS:
77.060 Korozija kovin Corrosion of metals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 16151
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2008
ICS 77.060
English Version
Corrosion of metals and alloys - Accelerated cyclic tests with
exposure to acidified salt spray, ''dry'' and ''wet'' conditions (ISO
16151:2005)
Corrosion des métaux et alliages - Essais cycliques Korrosion von Metallen und Legierungen -
accélérés avec exposition au brouillard salin acidifié, en Schnellprüfungen unter wechselnder Einwirkung von
conditions ''sèches'' et en conditions ''humides'' (ISO saurem Salzsprühnebel, ''trockenen'' und ''feuchten''
16151:2005) Bedingungen (ISO 16151:2007)
This European Standard was approved by CEN on 21 March 2008.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16151:2008: E
worldwide for CEN national Members.

Contents Page
Foreword.3

Foreword
The text of ISO 16151:2005 has been prepared by Technical Committee ISO/TC 156 “Corrosion of metals and
alloys” of the International Organization for Standardization (ISO) and has been taken over as EN ISO
16151:2008 by Technical Committee CEN/TC 262 “Metallic and other inorganic coatings” 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 October 2008, and conflicting national standards shall be withdrawn at
the latest by October 2008.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 16151:2005 has been approved by CEN as a EN ISO 16151:2008 without any modification.

INTERNATIONAL ISO
STANDARD 16151
First edition
2005-10-15
Corrosion of metals and alloys —
Accelerated cyclic tests with exposure
to acidified salt spray, “dry” and “wet”
conditions
Corrosion des métaux et alliages — Essais cycliques accélérés avec
exposition au brouillard salin acidifié, en conditions «sèches» et en
conditions «humides»
Reference number
ISO 16151:2005(E)
©
ISO 2005
ISO 16151:2005(E)
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ii © ISO 2005 – All rights reserved

ISO 16151:2005(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Test solution. 2
3.1 Method A. 2
3.1.1 Preparation of acidic 5 % sodium chloride solution . 2
3.2 Method B. 3
3.2.1 Preparation of the mixed salt solution . 3
3.2.2 Preparation of the acidic solution. 3
3.2.3 Preparation of the acidified-salt solution. 3
4 Apparatus . 4
4.1 Exposure cabinet. 4
4.2 Humidity and temperature control . 4
4.3 Spraying device . 4
4.4 Air saturator . 4
4.5 Collecting devices . 4
4.6 Air dryer . 5
4.7 Exhaust system. 5
4.8 Drain system . 5
5 Test specimens . 5
6 Arrangement of the test specimens. 5
7 Operating conditions. 6
8 Continuity of tests . 8
9 Duration of tests . 8
10 Treatment of specimens after test . 8
11 Evaluation of results. 8
12 Test report . 9
Annex A (informative) Relationship between amount of acidic stock solution added to mixed salt
solution and pH of the resulting acidified-salt solution . 10
Annex B (informative) Typical apparatus for accelerated cyclic tests with exposure to acidified
salt spray, “dry” and “wet” conditions. 11
Annex C (informative) Method of evaluation of the corrosivity of the chamber. 13
Bibliography . 15

ISO 16151:2005(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 16151 was prepared by Technical Committee ISO/TC 156, Corrosion of metals and alloys.
iv © ISO 2005 – All rights reserved

ISO 16151:2005(E)
Introduction
Corrosion of metallic materials, with or without corrosion protection, is influenced by many environmental
factors, the importance of which may vary with the type of metallic material and with the type of environment.
It is impossible, therefore, to design accelerated laboratory corrosion tests in such a way that all
environmental factors influencing resistance to corrosion are taken into account. Laboratory tests are,
therefore, designed to simulate the effects of the most important factors, which enhance the corrosion of
metallic materials.
The accelerated corrosion-test methods described in this International Standard are designed to simulate and
enhance the environmental influence on a metallic material to outdoor climates, where exposure to acid rain
and to salt-contaminated conditions occur and may promote corrosion. It has been prepared by reference to
technical papers and reports (see the Bibliography).
The test methods involve cyclic exposure of test specimens to a mist of acidified-salt solution, to drying
conditions, and to periods of high humidity. However, the methods are mainly intended for comparative testing
and the results obtained do not permit far-reaching conclusions on the corrosion resistance of the tested
metallic material under the whole range of environmental conditions in which they may be used. Nevertheless,
the methods provide valuable information on the relative performance of materials exposed to salt/acid rain
environments similar to those employed in the test.
INTERNATIONAL STANDARD ISO 16151:2005(E)

Corrosion of metals and alloy
...