When disinfecting equipment with hot water, what should the water temperature and chlorine concentration be?

The correct response indicates that for effective disinfection of equipment using hot water, a temperature of 120 degrees Fahrenheit paired with a chlorine concentration of 25 mg/l is appropriate. This combination is significant because the higher temperature enhances the efficacy of chlorine as a disinfectant, allowing it to more effectively kill pathogens on surfaces.

In the context of water treatment and sanitation practices, chlorine's effectiveness can be impacted by the temperature and concentration of the solution. The specified temperature is well-established for reducing bacterial counts, ensuring that most harmful microorganisms are adequately managed during the disinfection process. Additionally, the concentration of chlorine at 25 mg/l falls within guidelines that are recognized for effective disinfection without posing undue risks of chlorine toxicity or corrosive damage to the equipment being sanitized.

Thus, this choice reflects the balance between optimal temperature and chlorine concentration recommended in sanitation protocols, ensuring both safety and effectiveness.