Standard Practice for Conducting Moist SO2 Tests
ASTM G87-02 is a Standard for Conducting this moist Sulphur Dioxide (So2) Testing. Moist air containing Sulphur Dioxide (So2) quickly produces easily visible corrososion on many metals in a form resembling that occurring in industrial environments. It is therefore a test medium well suited to detect pores or other sources of weakness in protective coatings and deficiencies in corrosion resistance associated with unsuitable alloy composition or treatments.
The results obtained in the test should not be regarded as a general guide to the corrosion resistance of the tested materials in all environments where these materials may be used. Performance of different materials in the test should only be taken as a general guide to the relative corrosion resistance of these materials in moist SO2 service.