I-15-425 Black Screw PP Cap ine-15mm yangaphandle yangaphandle, okusho ukuthi iyahambelana nama-vials anosayizi wentamo ohambelana nalo. Lezi zimbobo zivame ukwenziwa ngezinto ezisezingeni eliphakeme ezifana ne-polypropylene. Lezi zimbobo ze-polypropylene zinezimpawu ezinhle kakhulu zokubopha uphawu futhi zinikeze ukumelana kahle kwamakhemikhali kufaka phakathi ama-acid, ama-alcohols, i-alkali, imikhiqizo enamanzi, izimonyo kanye namafutha asekhaya. I-PolyPropylene Hole CAPS yaziwa ngamandla amahle wethonya, ukusebenza kwezindleko, kanye nokufakwa.
Inqubo yokufaka isibopho esinama-adhesive-free isetshenziselwa ukuhlanganisa i-polytetrafluoroethylene membrane kanye ne-silicon rubber noma i-silicone bond ndawonye ukuze kugcinwe izici ezinhle kakhulu zezinto ezimbili. Isendlalelo se-polytetrafluoroethyleneneenene ye-septum yenhlanganisela ukuxhumana ne-reagent. I-inert yamakhemikhali futhi imelana ne-acid, i-alkali, lokushisa, kanye nokunamathela. Akusebenzi nge-acid ehlanganisiwe, egxile i-alkali, noma ama-oxidants aqinile ngisho nasekushiseni okuphezulu. Ngasikhathi sinye, ukunwebeka kwe-silicone rubber noma ungqimba lwe-silicone kungaqinisekisa ukusebenza kokubekwa uphawu.