Izinto zekhwalithi ephezulu, iwindi elicacile, i-zip lock
Izikhwama zepulasitiki ezibolayo
Kalula nje, into ethile iyabola lapho izinto eziphilayo, njengesikhunta noma amagciwane, zingayidiliza.Izikhwama ezibolayo zenziwa ngezinto ezisekelwe ezitshalweni ezifana nommbila nesitashi sikakolweni kune-petroleum.Kodwa-ke uma kuziwa kulolu hlobo lwepulasitiki, kunemibandela ethile edingekayo ukuze isikhwama siqale ukubola.
Okokuqala, izinga lokushisa kufanele lifinyelele ku-50 degrees Celsius.Okwesibili, isikhwama sidinga ukuvezwa ukukhanya kwe-UV.Endaweni yolwandle, ungacindezelwa kanzima ukuhlangabezana nenye yalezi zindlela zokunquma.Ngaphezu kwalokho, uma izikhwama ezibolayo zithunyelwa endaweni yokulahla imfucumfucu, ziwohloka ngaphandle komoya-mpilo ukuze kukhiqizwe i-methane, igesi ebamba ukushisa enamandla okufudumala izikhathi ezingu-21 kune-carbon dioxide.