ISO 6988
Metallic and other non organic coatings — Sulfur dioxide test with general condensation of moisture
Specifies a method for assessing the resistance of materials or products to condensed moisture containing sulfur dioxids. The method has been found to be suitable for testing metallic and non-organic coatings. Gives apparatus and material, test specimens, methods of exposure, procedure, test duration, cleaning of specimens, evaluation of results and test report.