*. Cov khoom no tsuas yog siv rau kev khaws cia thaum lub sijhawm thauj mus los tom qab sau cov qauv. Nws tsuas yog siv rau ib zaug xwb. Xyuas seb lub ntim puas puas ua ntej siv. Yog hais tias nws puas lawm, nws yog nruj me ntsis txwv tsis pub siv nws.
*. Tom qab siv cov khoom no, cov khoom pov tseg yuav tsum tau muab pov tseg raws li cov kev cai ntawm lub tsev kho mob lossis chaw tiv thaiv ib puag ncig.
*. Nyeem cov lus qhia ua tib zoo ua ntej siv thiab siv nws hauv lub sijhawm siv tau.
| Khoom | Virus thauj tube |
| Net nyhav | 12.8g |
| Lub Sijhawm siv tau | Ib xyoos |
| Qhov tshwm sim | ntshiab thiab pob tshab, tsis muaj nag lossis daus thiab impurities |
| PH | PH7.2 ± 0.2 |
| Swb | huv, tsis muaj kab mob, tsis muaj burrs thiab ntim |
| Thawv leakage | tag nrho kaw, tsis muaj to tom qab screwing lub hau |
| Muaj peev xwm | Kev txheeb xyuas txhais tau tias ± 10ml |
| Solution ntim | ± 10 feem pua ntawm cov ntawv ntim |
