materjalide ja toodete kvaliteedi mittepurustava kontrolli meetod (visuaalne vaatlus, katsetamine või uuring) hälvingute (pragude, mittepidevuste, defektide, pinnaefektide jm) kindlakstegemiseks
measuring something about an object to determine some characteristics of the object (the irregularities, discontinuities, flaws, surface defects) using nondestructive evaluation, testing or inspection methods
