Ubungakanani obuqhelekileyo bombhobho wentsimbi engagqwaliyo (SS) buyahluka ngokwemigangatho ethile elandelwa ngamazwe ahlukeneyo kunye namashishini. Nangona kunjalo, ezinye iisayizi eziqhelekileyo zombhobho wentsimbi engagqwaliyo ziquka:- 1/8″ (3.175mm) OD ukuya kwi-12″ (304.8mm) OD- 0.035″ (0.889mm) ubukhulu bodonga ukuya kwi-2″ (50.8mm) ubukhulu bodonga – Ubude obuqhelekileyo buhlala buyi-20 feet (6.096 m) ukuya kwi-24 feet (7.315 m) Kubalulekile ukuqaphela ukuba obu bungakanani buyimizekelo nje yobukhulu bombhobho wentsimbi engagqwaliyo esetyenziswa rhoqo, kwaye amashishini okanye ababoneleli abahlukeneyo banokubonelela ngobukhulu obuguquguqukayo okanye obulungiselelwe ngokweemfuno ezithile.