This International Standard defines terms relating to corrosion that are widely used in modern science and technology. In addition, some definitions are supplemented with short explanations.NOTE 1 Throughout the document IUPAC rules for electrode potential signs are applied. The term “metal” is also used to include alloys and other metallic materials.NOTE 2 Terms and definitions related to inorganic surface treatment of metals are given in ISO 2080.NOTE 3 See also the ISO online browsing platform (OBP): www.iso.org/obp/ui/