What is the CT value?

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Multiple Choice

What is the CT value?

Explanation:
CT value is the exposure of microorganisms to disinfectant, defined as the product of the residual disinfectant concentration (mg/L) and the contact time (minutes). This gives units of mg·min/L and reflects how much disinfectant exposure occurs, since inactivation depends on both how strong the disinfectant is and how long microbes are in contact with it. For example, 2 mg/L of chlorine for 15 minutes yields a CT of 30 mg·min/L. Regulations or guidelines specify a required CT under certain conditions, and meeting or exceeding that CT ensures effective disinfection.

CT value is the exposure of microorganisms to disinfectant, defined as the product of the residual disinfectant concentration (mg/L) and the contact time (minutes). This gives units of mg·min/L and reflects how much disinfectant exposure occurs, since inactivation depends on both how strong the disinfectant is and how long microbes are in contact with it. For example, 2 mg/L of chlorine for 15 minutes yields a CT of 30 mg·min/L. Regulations or guidelines specify a required CT under certain conditions, and meeting or exceeding that CT ensures effective disinfection.

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