Page 48 - MNU PM502 Ph. Micreo practical

Pharm D- Clinical Pharmacy Program Third Level Pharmaceutical Microbiology& Antimicrobials (PM 502)

LAB activity

Record the results for the provided Rideal walker test in the following table and

calculate the phenol coefficient.

Phenol conc Results of Disinfectant conc Results of

microbial growth microbial growth
5% 2%

4.5% 1.8%
4% 1.6%

3.6% 1.4%

Calculations:

• Compare between Rideal - Walker test and Chick - Martin test

Rideal -Walker Chick - Martin

Volume of medium for

subculturing

Diluent for test disinfectant

Reaction temperature

Organism

Sampling times(subculturing)

Calculation of coefficient

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