If the first sample complies with the requirements but the last does not, it may be necessary to take further samples from earlier in the production until a sample that does comply is found.
Kui esimene proovitükk vastab nõuetele, kuid viimane mitte, võib osutuda vajalikuks täiendavate proovide võtmine varasemast tootmisfaasist, kuni leitakse nõuetele mittevastav proov.