DS EN 12502-4:2005 Protection Of Metallic Materials Against Corrosion - Guidance On The Assessment Of Corrosion Likelihood In Water Distribution And Storage Systems - Part 4: Influencing Factors For Stainless Steels Provides a review of influencing factors of the corrosion likelihood of stainless steels used as tubes, tanks and equipment in water distribution and storage systems as defined in EN 12502-1.