BS EN ISO 9225:2012

Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 Humidity and temperature parameters
5 Airborne contaminants
Annex A (normative) - Determination of sulfur dioxide
        deposition rate on lead dioxide sulfation plates
Annex B (normative) - Determination of sulfur dioxide
        deposition rate on lead dioxide sulfation cylinder
Annex C (normative) - Determination of sulfur dioxide
        deposition rate on alkaline surfaces
Annex D (normative) - Determination of chloride
        deposition rate by the wet candle method
Annex E (normative) - Determination of chloride
        deposition rate by dry plate method
Annex F (normative) - Comparison of chlorides
        and sulfur dioxide deposition rates determined
        by different methods
Bibliography

Describes methods for measuring the parameters needed for corrosivity estimation used for classification of the corrosivity of atmospheres in ISO 9223.

This International Standard specifies methods for measuring the parameters needed for corrosivity estimation used for classification of the corrosivity of atmospheres in ISO9223.

This International Standard 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.

This International Standard 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 presented in AnnexesA, B, C, D, E and F.

For methods pertaining to the characterization of the atmospheric exposure site in general, see ISO8565.