IV)
The results below were obtained from a use -dilution test of two disinfectants. Cultures were inoculated
into tubes with varying concentrations of disinfectants and incubated for 24 hr at 20°C, then subculture
in nutrient media without disinfectants. (+ = growth; - = no growth)
Table IV:
Concentration
Bacter 1:10
1:90
1:900
que 1:90,000
Welor
5.1:900,000
1:9,000,000
Disinfectant 1
Initial
delldies
Subculture
Disinfectant 2
Subculture
Initial
Cack pest
Serect+ cito
catr
minimal bacteriostatic concentration of each disinfectant?