Efficacy testing of disinfectant

  • Hi :heart_eyes:

  • Please help me. I want ways to kill germs by using disinfectants. Thanks in advance :blush:

The 'Phenol coefficient", is now largely of historical interest, although the principles upon which it is based are still used. It is a measure of the antimicrobial (disinfection) activity of a chemical compound in relation to phenol. When listed numerically, the figure expressing the power of a substance by relating it to the disinfecting power of phenol may be a function of the standardized test performed. For example, the Rideal–Walker method, introduced in 1903 gives a Rideal–Walker coefficient.

One way to compare disinfectants is to compare how well they do against a known disinfectant and rate them accordingly using the Phenol coefficient. The disinfectant to be tested is compared with phenol on a standard microbe (usually Salmonella typhi or Staphylococcus aureus). Disinfectants that are more effective than phenol have a coefficient greater than 1; those that are less effective have a coefficient less than 1.

Your question is not clear

Please clarify