mittepurustav katse, mis põhineb magnetiliste pulbriliste materjalide ja fluorestsents- ja kontrastvärvainete kasutamisel magnetväljas (vt magnetpulberdefektoskoopia, magnetpulberfluorestsentskatse, magnetpulberkontrastvärvkatse, jääkmagnetpulberkatse), a nondestructive test of inspection for determining the existence and extent of surface cracks and similar imperfections in ferromagnetic materials (see: magnetic particle defectoscopy, magnetic particle fluorescent test, magnetic particle contrast color test, residual field magnetic particle test)