UNE-EN ISO 9227:2017
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227:2017)
Hardcopy , PDF
Spanish, Castilian, English
04-10-2017
13-09-2023
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 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.
It does not specify the dimensions or types of test specimens, the exposure period to be used for a particular product, or the interpretation of results. Such details are provided in the appropriate product specifications.
The salt spray tests are particularly useful for detecting discontinuities, such as pores and other defects in certain metallic, organic, anodic oxide and conversion coatings.
The neutral salt spray test (NSS) is the test method in which a neutral 5 % sodium chloride solution is atomized under a controlled environment. It particularly applies to:
metals and their alloys,
metallic coatings (anodic and cathodic),
conversion coatings,
anodic oxide coatings, and
organic coatings on metallic materials.
The acetic acid salt spray (AASS) test is the test method in which an acidified 5 % sodium chloride solution with the addition of glacial acetic acid is atomized under a controlled environment. It is especially useful for testing decorative coatings of copper + nickel + chromium, or nickel + chromium. It has also been found suitable for testing anodic and organic coatings on aluminum.
The copper-accelerated acetic acid salt spray test (CASS) is the test method in which an acidified 5 % sodium chloride solution with the addition of copper chloride and glacial acetic acid is atomized under a controlled environment. It is useful for testing decorative coatings of copper + nickel + chromium, or nickel + chromium. It has also been found suitable for testing anodic and organic coatings on aluminum.
The salt spray methods are all suitable for checking that the comparative quality of a metallic material, with or without corrosion protection, is maintained. They are 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 means of predicting long-term corrosion resistance of the tested material.
| Committee |
CTN 112
|
| DevelopmentNote |
Supersedes UNE 112017 & UNE EN ISO 7253. (06/2007)
|
| DocumentType |
Standard
|
| Pages |
29
|
| PublisherName |
Asociación Española de Normalización
|
| Status |
Superseded
|
| Standards | Relationship |
| NBN EN ISO 9227 : 2012 | Identical |
| ONORM EN ISO 9227 : 2017 | Identical |
| ISO 9227:2017 | Identical |
| BS EN ISO 9227:2017 | Identical |
| I.S. EN ISO 9227:2017 | Identical |
| NEN EN ISO 9227 : 2017 | Identical |
| EN ISO 9227:2017 | Identical |
| NS EN ISO 9227 : 2017 | Identical |
| NF EN ISO 9227 : 2017 | Identical |
| ISO 1514:2016 | Paints and varnishes — Standard panels for testing |
| ISO 7599:2010 | Anodizing of aluminium and its alloys — General specifications for anodic oxidation coatings on aluminium |
| ISO 8993:2010 | Anodizing of aluminium and its alloys — Rating system for the evaluation of pitting corrosion — Chart method |
| ISO 4623-2:2016 | Paints and varnishes — Determination of resistance to filiform corrosion — Part 2: Aluminium substrates |
| ISO 8994:2011 | Anodizing of aluminium and its alloys — Rating system for the evaluation of pitting corrosion — Grid method |
| ISO 2808:2007 | Paints and varnishes — Determination of film thickness |
| ISO 3574:2012 | Cold-reduced carbon steel sheet of commercial and drawing qualities |
| ISO 4628-8:2012 | Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity and size of defects, and of intensity of uniform changes in appearance — Part 8: Assessment of degree of delamination and corrosion around a scribe or other artificial defect |
| ISO 4628-4:2016 | Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity and size of defects, and of intensity of uniform changes in appearance — Part 4: Assessment of degree of cracking |
| ISO 15528:2013 | Paints, varnishes and raw materials for paints and varnishes — Sampling |
| ISO 1456:2009 | Metallic and other inorganic coatings — Electrodeposited coatings of nickel, nickel plus chromium, copper plus nickel and of copper plus nickel plus chromium |
| ISO 4628-3:2016 | Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity and size of defects, and of intensity of uniform changes in appearance — Part 3: Assessment of degree of rusting |
| ISO 17872:2007 | Paints and varnishes — Guidelines for the introduction of scribe marks through coatings on metallic panels for corrosion testing |
| ISO 4628-5:2016 | Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity and size of defects, and of intensity of uniform changes in appearance — Part 5: Assessment of degree of flaking |
| ISO 4628-1:2016 | Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity and size of defects, and of intensity of uniform changes in appearance — Part 1: General introduction and designation system |
| ISO 8044:2015 | Corrosion of metals and alloys — Basic terms and definitions |
| ISO 4527:2003 | Metallic coatings — Autocatalytic (electroless) nickel-phosphorus alloy coatings — Specification and test methods |
| ISO 4520:1981 | Chromate conversion coatings on electroplated zinc and cadmium coatings |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
| ISO 8407:2009 | Corrosion of metals and alloys — Removal of corrosion products from corrosion test specimens |
| ISO 1513:2010 | Paints and varnishes — Examination and preparation of test samples |
| ISO 3270:1984 | Paints and varnishes and their raw materials — Temperatures and humidities for conditioning and testing |
| ISO 10289:1999 | Methods for corrosion testing of metallic and other inorganic coatings on metallic substrates — Rating of test specimens and manufactured articles subjected to corrosion tests |
| ISO 3613:2010 | Metallic and other inorganic coatings — Chromate conversion coatings on zinc, cadmium, aluminium-zinc alloys and zinc-aluminium alloys — Test methods |
| ISO 4628-2:2016 | Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity and size of defects, and of intensity of uniform changes in appearance — Part 2: Assessment of degree of blistering |
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