Rau daim kab xev xaim kom ua tau raws li DOT cov cai, nws yuav tsum ua tau raws li qee qhov yuav tsum tau ua. Cov kev cai no suav nrog cov xim kab xev, qhov dav, qhov sib txawv xim sib txawv, kev ua tau zoo thiab kev cuam tshuam, thiab DOT daim ntawv pov thawj logo.
Xim - DOT daim kab xev yuav tsum tau ua los ntawm cov xim sib txawv ntawm liab thiab dawb.
Dav - DOT daim ntawv pov thawj tuaj yeem yog 2 "dav, 3" dav lossis 4 "dav. Lawv sawv cev rau DOT C2, C3, thiab C4, feem.
Qhov sib txawv - 7 "dawb / 11" liab thiab 6 "dawb / 6" liab.
Kev ua tau zoo thiab kev cuam tshuam - DOT daim kab xev xaim yuav tsum ua tau raws li txhua qhov kev ua tau zoo ntawm ASTM D4956-90 Cov nplooj ntawv V. Cov kev cai no muaj xws li adhesion, xim ceev, yoog raws, shrinkage, huab cua tsis kam, thiab lwm yam. Tsis tas li ntawd, kev xav yuav tsum ua tau raws li DOT C2 ntawv pov thawj.
DOT daim ntawv pov thawj logo - DOT-C2 lub logo tshwm rau ntawm daim kab xev tsawg kawg ib zaug txhua 12 ntiv tes thiab cov cim yuav tsum muaj tsawg kawg yog 3 hli siab.
