mittepurustava kontrolli meetod, mis põhineb magnetiliste pulbriliste materjalide ja fluorestsents- ja kontrastvärvainete kasutamisel magnetväljas (vt magnetpulberfluorestsentskatse, magnetpulberkontrastvärvkatse), a nondestructive method of inspection for determining the existence and extent of surface cracks and similar imperfections in ferromagnetic materials (see: magnetic particle fluorescent test, magnetic particle contrast color test)