materjali (toote) struktuuri, omaduste jms uurimisel kasutatav katsetusmeetodite perekond, mille käigus materjali (toodet) ei purustata (vt mittepurustav katse; vrd purustav katsetus), a family of inspection methods of materials and products without affecting their subsequent properties and performance (see: nondestructive test; compare: destructive testing)