- the number indicating the effectiveness of a disinfectant as a germicide relative to phenol, which is arbitrarily assigned the number 1: based on the time required to kill a given quantity of a specific type of bacteria.
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Examples from the Web for phenol coefficient
According to these tests Ziratol possesses a phenol-coefficient of 13.66.
This is in substantial accord with the referees findings as regards the phenol-coefficient with B. typhosus as the test object.