15-425 Chovala Chakuda cha PP chipewa ali ndi gawo la 15mm lakunja, zomwe zikutanthauza kuti ndizogwirizana ndi Mbale zomwe zili ndi kukula kwamutu ndikuwuma. Zikopa izi zimapangidwa kuchokera ku zinthu zapamwamba monga polypropylene. Kapinolipizi ka polypropyylene ili ndi mawonekedwe abwino osindikizira ndipo amaperekanso kukana kwamphamvu kwamphamvu kuphatikiza ma asidi, mowa, malkali, zinthu zamadzi, zodzoladzola, ndi mafuta apabanja. Mphamvu za Polypropyylene zodziwika bwino zimadziwika chifukwa zabwino zimakhudza mphamvu, kuchita bwino, komanso kuperewera.
Mbale za 8-425 zokhala ndi zingwe ndi zoyambirira, zoyambira zotsegulira. Mbale zimapangidwa ndi galasi lomveka bwino kapena lamber borosil. Kupezeka ndi gawo lolemba lomwe lalembedwa-patch yosavuta kudzaza ndi kuzindikira zitsanzo. Pamafunika kugwiritsa ntchito zotsekera kwa 8-425 ndi 8mm septa.2ml Autosambir Mbale wa HPLC - Mbale, Ng'ombe mu LABS Mbale zambiri ndi 12 *2mm. Khalidwe labwino kwambiri kuti muwonetsetse kukula kwa mitundu yonse ya 8mmm.