Defines a method of test for comparing the resistance to abrasion of anodic oxidation coatings on aluminium and its alloys with that of a standard specimen or a reference specimen, by the use of a jet of abrasive particles. Primarily intended for surfaces which are not flat. If suitable flat test surfaces are available, theabrasivewheeltestmethod(EN 12373-9) is the preferred method. Production components can be tested without cutting if the apparatus chamber can accommodate these.