Bulgarian Institute for Standardization
Standards – always a step ahead
Phone: +359 2 8174 523, +359 2 8174 504
E-mail: info@bds-bg.org
1797 Sofia, 13 "Lachezar Stanchev" Str., "Izgrev" Complex
ID number: 175079183, VAT number: BG175079183
Main menu

prБДС EN ISO 9227:2022

Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227:2022)

General information

60.55     Nov 12, 2022

60.60   

BDS

ТК-42

European Standard

77.060  

Appropriate for SMEs

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 NSS test is particularly applicable to:
—    metals and their alloys;
—    metallic coatings (anodic and cathodic);
—    conversion coatings;
—    anodic oxide coatings;
—    organic coatings on metallic materials.
The 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 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.

Life cycle

PREVIOUSLY

Replaces
БДС EN ISO 9227:2017

NOW

IN DEVELOPMENT
prБДС EN ISO 9227:2022
60.55 Ratification completed (DOR)
Nov 12, 2022

Related project

Adopted from EN ISO 9227:2022

Adopted from ISO 9227:2022