[Elements in the evaluation of some disinfectants for hospital use]

The efficacy of hospital disinfectants may be evaluated on the basis of the available information on their chemical, physical and biological properties: these depend on the interaction of germicides with other components in the formulation, with the diluent (its quality and quantity), with the organic matter and other materials. The Author is giving his contribution with up-dated information on commercial disinfectants based on phenol derivatives.