ISO 14993:2018

Corrosion of metals and alloys — Accelerated testing involving cyclic exposure to salt mist, dry and wet conditions

This document specifies the apparatus and test procedure to be used in conducting accelerated corrosion tests for the comparative evaluation of metallic materials with or without permanent corrosion protection or temporary corrosion protection in salt-contaminated outdoor environments. The test involves cyclic exposure of the specimens to neutral salt mist, "dry" and "wet" conditions. The type of test specimen and the exposure period are not specified. The particular advantages of this test over common accelerated tests such as the neutral salt spray (NSS) test lie in its ability to better reproduce the corrosion that occurs in outdoor salt-contaminated environments. This document is applicable to — metals and their alloys, — metallic coatings (anodic and cathodic), — conversion coatings, — anodic oxide coatings, and — organic coatings on metallic materials. NOTE Methods of test for coatings to determine their resistance, in the presence of scribe marks through to the substrate, to various cyclic corrosion conditions which include the condensation of water on the test specimens during periods of humidity are given in ISO 11997-1.

Corrosion des métaux et alliages — Essais accélérés comprenant des expositions cycliques à des conditions de brouillard salin, de séchage et d'humidité

General Information

• Status: Published
• Publication Date: 25-Jul-2018
• ICS: 77.060 - Corrosion of metals
• Technical Committee: ISO/TC 156 - Corrosion of metals and alloys
• Drafting Committee: ISO/TC 156/WG 7 - Accelerated corrosion tests
• Current Stage: 9060 - Close of review
• Start Date: 04-Mar-2029

Relations

• Revises: ISO 14993:2001 - Corrosion of metals and alloys — Accelerated testing involving cyclic exposure to salt mist, "dry" and "wet" conditions
• Effective Date: 09-Jul-2016

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 14993
Second edition
2018-07
Corrosion of metals and alloys —
Accelerated testing involving cyclic
exposure to salt mist, dry and wet
conditions
Corrosion des métaux et alliages — Essais accélérés comprenant des
expositions cycliques à des conditions de brouillard salin, de séchage
et d'humidité
Reference number
ISO 14993:2018(E)
©
ISO 2018

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ISO 14993:2018(E)

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ii © ISO 2018 – All rights reserved

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ISO 14993:2018(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Test solution . 2
4.1 General . 2
4.2 Preparation of the sodium chloride solution . 2
4.3 pH adjustment . 2
5 Apparatus . 3
5.1 Component protection . 3
5.2 Exposure equipment . 3
6 Test specimens. 4
7 Arrangement of the test specimens . 4
8 Operating conditions . 5
9 Continuity of tests . 6
10 Duration of tests . 6
11 Treatment of test specimens after testing .
...