1.1 This specification covers requirements for electrolyti-cally formed porous oxide coatings on aluminum and alumi-mum alloy paurts in which appearance, abrasion resistance,eletrical properties, and protection against corrosion are important. Nonporous, barrier layer anodic coatings used for electrical capacitors are not covered. Seven types of coatings as shown in Table 1 are provided. Definitions and typical ex-amples of service conditions are provided in Appendix X1.
