[Comparative study of some quaternary ammoniums neutralizing agents. Influence of the nature of the bacterial strains used].

The neutralising capacity of the anti-bacterial activity of a quaternary ammonium salt, depends on the nature of the bacterial strains used. Consequently, the choice of a neutralising agent of the bactericidal activity can only be made following a preliminary study on several bacterial species. Out of five products which we tested, we found the Tween-lecithin fresh egg mixture alone had satisfactory activity.