[Recent findings on the bactericidal power of 2,4,4-trichloro-2'-hydroxydiphenyl ether]

The modified contact test has been used to examine the activity of a water solution of 2,4,4-trichloro-2'-hydroxy diphenyl ether at concentrations of 1% and 2% with respect to 14 hospital and standard bacterial strains. Results show that at the two concentrations used, excellent bactericidal activity is obtained for contact times of between 30" and 3' depending on the strain considered.