Muganhu wezviperevedzo wehuwandu unoshandiswa mukuongorora nemasampuli kuti pasarudzwe kana boka rezvakagadzirwa rinogamuchirwa.
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AQL (Acceptance Quality Limit) inzira yekusarudza nezveboka rezvakagadzirwa zvichibva pamasampuli akasarudzwa zvisina kurongwa pachinzvimbo chekuongorora chinhu chimwe nechimwe. Yakavakirwa pazviyero zvakaita se ISO 2859-1 ne ANSI/ASQ Z1.4.
Saizi yeboka uye danho rekuongorora rakasarudzwa zvinotara saizi yesampuli. Zviperevedzo zvinowanzorongwa sezvakakomba zvikuru, zvikuru uye zvidiki, chimwe nechimwe chine muganhu wacho wekugamuchira. Kana huwandu hwezviperevedzo musampuli hwapfuura muganhu, boka rinorambwa kana kuongororwa zvakare.