I-Vials ye-Propace isetyenziswa ngokuqhelekileyo esetyenziswayo kwiimvavanyo zesigaba segesi. I-Vials yeCoppace inamanqanaba ahlukeneyo amandla, kubandakanya i-6ml, i-10ml, 20ml, njl. Sebenzisa isampulu yesampulu yokuqinisekisa; Ngokwesiqhelo, ivolumu egciniweyo kufuneka ibe yi-50% yevolumu yesampulu.