DIN EN ISO 9227

Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227:2017)

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Organization: DIN
Publication Date: 1 July 2017
Status: active
Page Count: 29
ICS Code (Corrosion of metals): 77.060
scope:

This document 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 (NSS) test 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 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 aluminium.

The copper-accelerated acetic acid salt spray (CASS) test 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 aluminium.

The salt spray methods are all suitable for checking that the 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.

Document History

DIN EN ISO 9227
July 1, 2017
Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227:2017)
This document 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...
September 1, 2015
Corrosion tests in artificial atmospheres - Salt spray tests (ISO/DIS 9227:2015); German and English version prEN ISO 9227:2015
A description is not available for this item.
September 1, 2012
Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227:2012)
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...
October 1, 2006
Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227:2006)
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...

References

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