Ama-trailer amathangi amakhemikhali ayingozi aklanyelwe ukuthutha okuphephile nokuvikelekile koketshezi namakhemikhali ayingozi. Lawa ma-trailer akhiwe ukuze ahlangabezane nezindinganiso eziqinile zokuphepha nemithetho, okuqinisekisa ukuthi amakhemikhali ayingozi athuthwa ngaphandle kwengozi encane kubantu nasendaweni. Ukwakhiwa kwama-trailer amathangi amakhemikhali ayingozi kufaka phakathi amathangi aqinisiwe enziwe ngezinto ezifana nensimbi engagqwali noma insimbi ye-carbon, enezici eziningi zokuphepha ezifana namavalvu okusiza ukucindezela, ama-seal angavuzi, nama-coatings angashi. 

Lawa ma-trailer asetshenziswa ezimbonini ezinjengokukhiqiza amakhemikhali, ezemithi, nezolimo, lapho ukuthuthwa okuphephile kwezinto eziyingozi kubaluleke kakhulu. Ama-trailer amathangi amakhemikhali ayingozi aphinde afakwe amasistimu okuqapha athuthukile ukuze abone ukuguquguquka kwezinga lokushisa noshintsho lwengcindezi, ehlinzeka ngedatha yesikhathi sangempela ukuze kuqinisekiswe ukuthutha okuphephile.