I.S. EN 12500:2000
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
PROTECTION OF METALLIC MATERIALS AGAINST CORROSION - CORROSION LIKELIHOOD IN ATMOSPHERIC ENVIRONMENT - CLASSIFICATION, DETERMINATION AND ESTIMATION OF CORROSIVITY OF ATMOSPHERIC ENVIRONMENTS
Hardcopy , PDF
10-02-2012
English
01-01-2000
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Introduction
1 Scope
2 Normative references
3 Terms and definitions
3.1 Corrosivity
3.2 Corrosion likelihood
3.3 Type of atmospheric environment
3.4 Category of location
3.5 Time of wetness
4 Classification of corrosivity of atmospheric
environments
5 Determination of corrosivity categories
6 Estimation of corrosivity categories
6.1 General
6.2 Climatic influences
6.3 Types of atmospheric environment
6.4 Categories of location
6.4.1 General
6.4.2 Outdoor atmosphere
6.4.3 Indoor atmosphere
Annex A (normative) Description of standard specimens and
exposure conditions for determination of corrosivity
categories
Annex B (normative) Chemical cleaning procedures for removal
of corrosion products (in accordance with ISO 9226)
Annex C (informative) Correspondence between the mass loss
per unit surface area and the thickness loss after
1 year exposure for the corrosivity categories
Annex D (informative) Calculated time of wetness and selected
climatological characteristics of the macroclimatic
zones of the earth
Annex E (informative) Description of typical atmospheric
environments related to the estimation of corrosivity
categories
Bibliography
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