Objective To study disinfection effect of a guanidine disinfectant on Legionella pneumophila( type III),so as to provide the scientific basis for the practical disinfectant applications. Methods Suspension quantitative germicidal test was used to study disinfection effect of guanidine disinfectant. Results The solution of guanidine disinfectant is colorless and transparent,and the content of poly [2-( 2- ethoxy)- ethoxy ethyl ester] guanidine was 4 500 ~ 5 500 mg / L. The average killing logarithm values of...