1, waarinji biyo ku salaysan oo laba qaybood ah, taas oo aan ku jirin sunta iyo dareerayaasha benzene ee waxyeelada leh, oo deegaan ahaan u wanaagsan, badbaado iyo caafimaad leh;
2, Haddii uu dab kaco, lakabka kaarboonka ee balaadhsan ee isbuunyada aan guban ayaa la sameeyay, kaas oo ka ciyaara doorka kuleylka kulaylka, daboolida oksijiinta, iyo ilaalinta ololka, waxayna si wax ku ool ah uga hortagi kartaa substrate-ka in la shido;
3, Dhumucda dahaarka waa la hagaajin karaasida waafaqsan shuruudaha ololka.Qodobka ballaarinta lakabka kaarboonka wuxuu gaari karaa in ka badan 100 jeer, lakab khafiif ah ayaa lagu dabaqi karaa si loo helo saameyn dib-u-dhac ah oo olol ah;
4, Filimka rinjiga ayaa leh heer go'an oo qallafsan ka dib marka la qalajiyo, loomana isticmaali karo substrates aad u jilicsan oo u baahan in si joogta ah loo foorarsado.