Ka dib shaqada kulul kadib, cajiinkani waa in lagu qaboojiyaa heerkul gaar ah ka hor intaysan kululaanin. Guud ahaan marka la hadlayo, daaweynta kuleylka ee loo isticmaalo Ansi B16.5 Karbon Birta yar ee birta ah waa in lagu sameeyaa iyada oo loo eegayo shuruudaha qaarkood, sida nooca kuleylka, xariga kuleylka \ / heerkulka xalka, qaboojiyaha.