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BS EN 12500:2000

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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
Available format(s)

Hardcopy , PDF

Superseded date

02-29-2012

Language(s)

English

Published date

08-15-2000

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

Specifies a classification system for corrosivity of atmospheric environments. Defines corrosivity categories of atmospheric environments accounting for ISO 9223; describes the determination of corrosivity assessing the mass loss of standard specimens after the first year of exposure; estimates the corrosivity of an environment based on knowledge of local conditions (or specific data that characterize them), where an experimental determination is not possible. The classification system contributes to the knowledge and comparison of corrosivity of atmospheric environments at different locations; the choice of materials and corrosion protection measures. Cannot determine corrosivity categories from exposure periods less or greater than the first year.

Committee
ISENFE/8
DevelopmentNote
Supersedes 96/710879 DC. (08/2005) Reviewed and confirmed by BSI, October 2005. (10/2005)
DocumentType
Standard
Pages
20
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
I.S. EN 12500:2000 Identical
EN 12500 : 2000 Identical
UNI EN 12500 : 2002 Identical
NS EN 12500 : 1ED 2000 Identical
NEN EN 12500 : 2000 Identical
NF EN 12500 : 2000 Identical
DIN EN 12500:2000-12 Identical
NBN EN 12500 : 2000 Identical
SN EN 12500 : 2000 Identical

ISO 9223:2012 Corrosion of metals and alloys — Corrosivity of atmospheres — Classification, determination and estimation
ISO 9226:2012 Corrosion of metals and alloys — Corrosivity of atmospheres — Determination of corrosion rate of standard specimens for the evaluation of corrosivity
ISO 9224:2012 Corrosion of metals and alloys — Corrosivity of atmospheres — Guiding values for the corrosivity categories
ISO 9225:2012 Corrosion of metals and alloys — Corrosivity of atmospheres — Measurement of environmental parameters affecting corrosivity of atmospheres
IEC 60721-2-1:2013 Classification of environmental conditions - Part 2-1: Environmental conditions appearing in nature - Temperature and humidity
EN ISO 8044:2015 Corrosion of metals and alloys - Basic terms and definitions (ISO 8044:2015)
ISO 12944-2:2017 Paints and varnishes — Corrosion protection of steel structures by protective paint systems — Part 2: Classification of environments
ISO 8407:2009 Corrosion of metals and alloys Removal of corrosion products from corrosion test specimens
ISO 8565:2011 Metals and alloys Atmospheric corrosion testing General requirements

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