Ii-vials ze-TOC zizinto ezihlanjululwe kwangaphambili zenziwe kwiglasi ephezulu ye-borosilicate okanye ezinye izinto ze-Intert. Ziinjineli ngokungqalileyo ukunciphisa umngcipheko wokungcola onxulunyaniswa neevils zemveli, ukuqinisekisa ukuba izixa zexabiso lokungcola kwendalo azikufanisileli ukufundwa kwe-TOC.