1c {{{{{}} cov khoom siv lim hauv lub lim gs 30/3 ve

1c {{{{{} Cov khoom lim Lim Gs 30/3

1.}}} muaj zog anti-microbial muaj peev xwm, tsis muaj kev tawm tsam nrog microorganisms.
2. Tsis muaj cov ntaub ntawv siv micro poob, tsis muaj kuab paug thib ob.
3.} zoo dua tsis kam rau thermal siab thiab cuam tshuam .
{{0 {}} yooj yim rau nruab, tshem tawm thiab huv si.
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1c {{{{{} pa khoom lim gs 30/3 ve footed hmoov lim, haum rau ntau daim teb,

1. lub zog thiab kev tiv thaiv ib puag ncig
2.} Cov roj av kev txhaj tshuaj
3. Alkali Foltration
4.} zas zas xim