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