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ISO/DIS 9225

Corrosion of metals and alloys — Corrosivity of atmospheres — Measurement of environmental parameters affecting corrosivity of atmospheres

General information

40.20     Mar 9, 2026

ISO

ISO/TC 156

International Standard

77.060  

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Scope

ISO 9225:2012 specifies methods for measuring the parameters needed for corrosivity estimation used for classification of the corrosivity of atmospheres in ISO 9223.
ISO 9225:2012 specifies methods for the measurement of environmental parameters for normative corrosivity estimation based on calculated first-year corrosion rates of standard metals, and informative corrosivity estimation based on characterization of the exposure environment.
It does not describe the usual analytical techniques for the measured parameters since this depends on the available analytical techniques used in laboratories. Specific methods for deposition measurement of SO2 and Cl- deposition rates and conversional factors for comparison of different measuring methods are given.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 9225:2012

NOW

PROJECT
ISO/DIS 9225
40.20 DIS ballot initiated: 12 weeks
Mar 9, 2026

National adoptions

naSRPS EN ISO 9225:2024  
ISS

Corrosion of metals and alloys - Corrosivity of atmospheres - Measurement of environmental parameters affecting corrosivity of atmospheres (ISO/DIS 9225:2026)

40.20   DIS ballot initiated: 12 weeks

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