EN ISO 9227:2006
(Main)Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227:2006)
Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227:2006)
ISO 9227:2006 specifies the apparatus, the reagents and the procedure to be used in conducting the neutral salt spray (NSS), acetic acid salt spray (AASS) and copper-accelerated acetic acid salt spray (CASS) tests for assessment of the corrosion resistance of metallic materials, with or without permanent or temporary corrosion protection.
It also describes the method employed to evaluate the corrosivity of the test-cabinet environment.
Korrosionsprüfungen in künstlichen Atmosphären - Salzprühnebelprüfungen (ISO 9227:2006)
Diese Internationale Norm legt das Gerät, die Reagenzien und das anzuwendende Verfahren bei der Durchführung der neutralen Salzsprühnebelprüfung (NSS, neutral salt spray), der Essigsäure-Salzsprüh-nebelprüfung (AASS, acetic acid salt spray) und der kupferbeschleunigten Essigsäure-Salzsprühnebelprüfung (CASS, copper-accelerated acid salt spray) zum Beurteilen der Korrosionsbeständigkeit von metallischen Werkstoffen mit oder ohne ständigen Korrosionsschutz oder mit temporärem Korrosionsschutz fest.
Die Norm beschreibt auch das Verfahren, mit dem die Korrosivität in der Prüfkammer bewertet werden kann.
Die Norm legt nicht die Maße der Proben, die für ein bestimmtes Produkt anzuwendende Dauer der Beanspruchung oder die Interpretation der Ergebnisse fest. Solche Einzelheiten werden in den entsprechenden Produktspezifikationen angegeben.
Die Salzsprühnebelprüfungen sind besonders nützlich zum Nachweis von Schwachstellen, wie Poren und anderen Schäden, in bestimmten metallischen Überzügen und organischen Beschichtungen sowie anodischen Oxidschichten und Umwandlungsschichten.
Die neutrale Salzsprühnebelprüfung gilt für:
- Metalle und deren Legierungen;
- Metallüberzüge (anodisch oder kathodisch wirksame);
- Umwandlungsschichten;
- anodische Oxidschichten;
- organische Beschichtungen auf metallischen Werkstoffen.
Die Essigsäure-Salzsprühnebelprüfung ist besonders nützlich zum Prüfen dekorativer Überzüge aus Kupfer + Nickel + Chrom oder Nickel + Chrom. Sie ist auch zum Prüfen anodischer Schichten auf Aluminium geeignet.
Die kupferbeschleunigte Essigsäure-Salzsprühnebelprüfung ist nützlich zum Prüfen dekorativer Überzüge aus Kupfer + Nickel + Chrom oder Nickel + Chrom. Sie ist auch zum Prüfen anodischer Überzüge auf Aluminium geeignet.
Essais de corrosion en atmosphères artificielles - Essais aux brouillards salins (ISO 9227:2006)
L'ISO 9227:2006 spécifie l'appareillage, les réactifs et le mode opératoire à utiliser lors des essais au brouillard salin neutre (NSS), au brouillard salin acétique (AASS) et au brouillard salin cupro-acétique (CASS) permettant d'évaluer la résistance à la corrosion de matériaux métalliques, avec ou sans revêtement temporaire ou permanent de protection contre la corrosion.
Elle décrit également la méthode à appliquer pour évaluer la corrosivité du milieu de la chambre d'essai.
Korozijsko preskušanje v umetnih atmosferah – Korozijski preskusi v slani komori (ISO 9227:2006)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2006
Korozijsko preskušanje v umetnih atmosferah – Korozijski preskusi v slani komori
(ISO 9227:2006)
Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227:2006)
Korrosionsprüfungen in künstlichen Atmosphären - Salzprühnebelprüfungen (ISO
9227:2006)
Essais de corrosion en atmospheres artificielles - Essais aux brouillards salins (ISO
9227:2006)
Ta slovenski standard je istoveten z: EN ISO 9227:2006
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 9227
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2006
ICS 77.060 Supersedes EN ISO 7253:2001
English Version
Corrosion tests in artificial atmospheres - Salt spray tests (ISO
9227:2006)
Essais de corrosion en atmosphères artificielles - Essais Korrosionsprüfungen in künstlichen Atmosphären -
aux brouillards salins (ISO 9227:2006) Salzprühnebelprüfungen (ISO 9227:2006)
This European Standard was approved by CEN on 7 July 2006.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, 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.
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© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9227:2006: E
worldwide for CEN national Members.
Foreword
This document (EN ISO 9227:2006) has been prepared by Technical Committee ISO/TC 35
"Paints and varnishes" in collaboration with Technical Committee CEN/TC 139 "Paints and
varnishes", the secretariat of which is held by DIN.
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 January 2007, and conflicting national
standards shall be withdrawn at the latest by January 2007.
This document supersedes EN ISO 7253:2001.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
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.
Endorsement notice
The text of ISO 9227:2006 has been approved by CEN as EN ISO 9227:2006 without any
modifications.
INTERNATIONAL ISO
STANDARD 9227
Second edition
2006-07-15
Corrosion tests in artificial
atmospheres — Salt spray tests
Essais de corrosion en atmosphères artificielles — Essais aux
brouillards salins
Reference number
ISO 9227:2006(E)
©
ISO 2006
ISO 9227:2006(E)
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ii © ISO 2006 – All rights reserved
ISO 9227:2006(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 2
3 Test solutions. 2
3.1 Preparation of the sodium chloride solution .2
3.2 pH adjustment . 2
3.3 Filtration. 3
4 Apparatus . 3
4.1 Component protection . 3
4.2 Spray cabinet . 3
4.3 Heater and temperature control . 3
4.4 Spraying device . 4
4.5 Collecting devices . 4
4.6 Re- use . 5
5 Method of evaluation of the corrosivity of the cabinet. 5
5.1 General. 5
5.2 NSS test . 5
5.3 AASS test. 6
5.4 CASS test. 7
6 Test specimens . 9
7 Arrangement of the test specimens. 9
8 Operating conditions. 10
9 Duration of tests . 10
10 Treatment of specimens after test . 11
11 Evaluation of results. 11
12 Test report . 11
Annex A (informative) Schematic diagram of one possible design of spray cabinet with means for
treating fog exhaust and drain . 13
Annex B (informative) Complementary method for evaluation of the corrosivity of the cabinet by
use of zinc reference specimens . 15
Annex C (normative) Preparation of panels with organic coatings for testing . 17
Annex D (normative) Required supplementary information for testing test panels
with organic coatings. 18
Bibliography . 19
ISO 9227:2006(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 9227 was prepared by Technical Committee ISO/TC 156, Corrosion of metals and alloys, in collaboration
with ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes,
and ISO/TC 107, Metallic and other inorganic coatings, Subcommittee SC 7, Corrosion tests.
This second edition cancels and replaces the first edition (ISO 9227:1990) and ISO 7253:1996, which have
been technically revised.
iv © ISO 2006 – All rights reserved
ISO 9227:2006(E)
Introduction
There is seldom a direct relation between resistance to the action of salt spray and resistance to corrosion in
other media, because several factors influencing the progress of corrosion, such as the formation of protective
films, vary greatly with the conditions encountered. Therefore, the test results should not be regarded as a
direct guide to the corrosion resistance of the tested metallic materials, in all environments where these
materials may be used. Also, the performance of different materials, during the test should not be taken as a
direct guide to the corrosion resistance of these materials in service.
Nevertheless, the method described gives a means of checking that the comparative quality of a metallic
material, with or without corrosion protection, is maintained.
Salt spray tests are generally suitable as corrosion protection tests for rapid analysis for discontinuities, pores
and damage in organic and inorganic coatings. In addition, for quality control purposes, comparison can be
made between specimens coated with the same coating. As comparative tests, however, salt spray tests are
only suitable if the coatings are sufficiently similar in nature.
It is often not possible to use results gained from salt spray testing as a comparative guide to the long-term
behaviour of different coating systems, as the corrosion stress during these tests differs significantly from the
corrosion stresses encountered in practice.
INTERNATIONAL STANDARD ISO 9227:2006(E)
Corrosion tests in artificial atmospheres — Salt spray tests
1 Scope
This International Standard specifies the apparatus, the reagents and the procedure to be used in conducting
the neutral salt spray (NSS), acetic acid salt spray (AASS) and copper-accelerated acetic acid salt spray
(CASS) tests for assessment of t
...
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