1. Yenziwe ngezinto ze-POM, imelana nokugqwala kwamakhemikhali
2. Kunezindawo zokubhala ezinkulu ezinhlangothini zombili, kanti ingxenye yangaphambili ingu-45° indawo yokubhala
3. Idizayini yebhakede enengqondo yokuqinisekisa ukuthi ikhava engezansi ihlanganiswe ngokuqinile ohlelweni lokuhlela nokwelashwa.
4. Ngomklamo ohlukanisekayo wezingcezu ezimbili, phansi/ikhava kulula ukukuhlakaza nokuhlanganisa, ngisho noma ikhava ishintshwa njalo, isampula ngeke ilahleke.
5. Kunezinhlobo ezahlukene zamabhokisi okushumeka ongakhetha kuzo, ukuzivumelanisa nezidingo ezahlukene
6. Imibala eminingi iyatholakala ukuze ihlukaniseke kalula
7. Ifanele iningi lamaphrinta amabhokisi ashumekiwe