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ILNAS-EN ISO 9227:2017 Edition 04/2017
Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227:2017)
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Abstract

ISO 9227:2017 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.

Status

Standard - Withdrawn

Origin

Technical Committee :
CEN/TC 262 : Metallic and other inorganic coatings

Implementation

start of the vote on the project    13/08/2015   date of ratification (dor)    28/02/2017
end of the vote on the project    13/11/2015   date of anouncement (doa)    31/07/2017
start of the vote on the final project    08/12/2016   date of publication (dop)    31/10/2017
end of the vote on the final project    28/01/2017   date of withdrawal (dow)    31/10/2017


Publication Official Journal
of the Grand-Duchy of Luxembourg
19/06/2017
Reference Mémorial A N° 573

Relations

Evolutions
ILNAS-EN ISO 9227:2022

Relations to older standards
ILNAS-EN ISO 9227:2012

Relations to international standards
ISO 9227 
ISO 9227 
ISO 9227 
ISO 9227:2017 

International Classification for Standards (ICS codes) :

77.060 : Corrosion of metals

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