Summary. 10% bleach (sodium hypochlorite) is used in the student lab to sanitize benches before and after work and in case of spills. Centers for Disease Control and Prevention (CDC) guidelines recommend diluting the bleach daily.
(one part bleach to nine parts water) yields 5,250 ppm or a 0.53% hypochlorite solution for use within 24 hours.
So a 1:10 dilution ratio would mean that you should mix 12.8 ounces of bleach with 128 ounces of water. For the weakest solution recommended by the CDC article (1:100), you would dilute 1.28 ounces of bleach with one gallon of water.
1 mL (1/4 teaspoon) of household bleach to 500 mL (2 cups) of water, or. 20 ml (4 teaspoons) of household bleach to 10 l (40 cups or approx. 2 gallons)
Ratio: 1 tablespoon of bleach to 1 gallon of cold water. Contact Time: Leave for 2 minutes, then wipe or air dry. Disinfection: Ratio: 1/4 (minimum) to 3/4 (maximum) cup of bleach to 1 gallon of cold water or 1 tablespoon (minimum) to 3 tablespoons (maximum) of bleach to 1 liter of water.
Disinfect in a solution of 1 tablespoon of household chlorine bleach in 1 gallon of clean water. Allow to air dry.