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EN ISO 9224:2012

Current
Current

The latest, up-to-date edition.

Corrosion of metals and alloys - Corrosivity of atmospheres - Guiding values for the corrosivity categories (ISO 9224:2012)
Published date

02-01-2012

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Prediction of corrosion attack after
  extended exposure
6 Specific criteria for calculation of
  corrosion rates of structural metals
7 Long-term exposures
Annex A (informative) - Example of maximum
        corrosion attack after extended exposures
        for corrosivity categories
Annex B (informative) - Average initial corrosion
        rates and average steady corrosion rates in
        intervals relative to classified corrosivity
        categories
Annex C (informative) - Prediction of corrosion attack
        of steels with regard to steel composition
Bibliography

ISO 9224:2012 specifies guiding values of corrosion attack for metals and alloys exposed to natural outdoor atmospheres for exposures greater than one year. It is intended to be used in conjunction with ISO 9223.Guiding corrosion values for standard structural materials can be used for engineering calculations. The guiding corrosion values specify the technical content of each of the individual corrosivity categories for these standard metals.ISO 9224:2012 provides examples of calculated maximum corrosion attack after extended exposure (up to 20 years) for six standardized corrosivity categories.It provides presumed average initial and steady-state corrosion rates of standard metals in intervals relative to six standardized corrosivity categories. It provides the calculation procedure for corrosion attack of steels in regard to their composition.

Committee
CEN/TC 262
DevelopmentNote
Supersedes EN 12500. (02/2012)
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current
Supersedes

16/30341165 DC : 0 BS EN 14492-2 - CRANES - POWER DRIVEN WINCHES AND HOISTS - PART 2: POWER DRIVEN HOISTS
PREN 14492-1 : DRAFT 2015 CRANES - POWER DRIVEN WINCHES AND HOISTS - PART 1: POWER DRIVEN WINCHES
PREN 14592 : DRAFT 2017 TIMBER STRUCTURES - DOWEL-TYPE FASTENERS - REQUIREMENTS

ISO 9223:2012 Corrosion of metals and alloys — Corrosivity of atmospheres — Classification, determination and estimation
ISO 11303:2002 Corrosion of metals and alloys Guidelines for selection of protection methods against atmospheric corrosion
ISO 14713-1:2017 Zinc coatings — Guidelines and recommendations for the protection against corrosion of iron and steel in structures — Part 1: General principles of design and corrosion resistance
ISO 9225:2012 Corrosion of metals and alloys — Corrosivity of atmospheres — Measurement of environmental parameters affecting corrosivity of atmospheres
ISO 8044:2015 Corrosion of metals and alloys Basic terms and definitions

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