15% 100lml Silver Nitrate Election Ink rau cov neeg pov npav xaiv tsa

Lus piav qhia luv luv:

Cov ntawv pov thawj pov npav, tseem hu ua tus cwj mem xaiv xaiv tsis tau lossis cov neeg pov npav tsis zoo, yog cov tshuaj pleev xim uas tsim los tiv thaiv kev xaiv tsa los ntawm kev kos npe rau cov neeg xaiv tsa tus ntiv tes (feem ntau tus ntiv tes ntiv tes) nrog lub cim ib nrab. Qhov kev daws teeb meem no tshwj xeeb tshaj yog nyob rau hauv cov cheeb tsam uas tsis muaj cov txheej txheem kev txheeb xyuas lub teb chaws. Tus cwj mem muaj cov nyiaj nitrate ntau li ntawm 5% mus rau 25%, nrog cov feem pua ​​​​siab dua muab kev txhim kho kom ruaj khov tiv thaiv kev sim tshem tawm. Lub raj mis muaj xws li 15ml, 25ml, 50ml, 60ml, 80ml, 100ml, thiab 120ml kev xaiv, tso cai rau kev hloov kho raws li kev xaiv tsa. Cov kev ntsuam xyuas teb tau lees paub tias cov tshuaj pleev xim nrog ≥15% nyiaj nitrate ua kom pom qhov ua tau zoo hauv kev xaiv tsa nom tswv thiab kev xaiv nom tswv.