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ISO 9224:2012

Corrosion of metals and alloys — Corrosivity of atmospheres — Guiding values for the corrosivity categories
27 jan 2012

General information

90.93     16 sht 2022

ISO

ISO/TC 156

International Standard

77.060  

anglisht   frëngjisht  

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 9224:1992

NOW

PUBLISHED
ISO 9224:2012
90.93 Standard confirmed
16 sht 2022