Kontrolkulturer med opløsningsmiddel/bærestof og ubehandlede kulturer bør resultere i reproducerbart lave og konsistente mikrokerneforekomster (typisk 5-25 mikrokerner/1000 celler for de celletyper, der er identificeret i punkt 11).
Solvent/vehicle control and untreated cultures should give reproducibly low and consistent micronuclei frequencies (typically 5-25 micronuclei/1000 cells for the cell types identified in paragraph 11).