EXPERIMENTAL OBSERVATION ON GERMICIDAL EFFICACY OF JUN-LI-KE DISINFECTION POWDER

In order to know the germicidal efficacy and corrosiveness of Jun-Li-Ke disinfection powder, carrier quantitative germicidal test and metal corrosive test were carried out. Results: The killing rates of spores of Bacillus subtilis var. niger on cloth strip exposed to the disinfectant solution containing available chlorine 2000 mg/L for 20 min, Staphylococcus aureus and Escherichia coli on cloth strips exposed to the solution containing available chlorine 30 mg/L for 10 min and 3 min respectively and Candida albicans exposed to the solution containing available chlorine 20 mg/L for 10 min were 100%. The disinfectant solution containing available chlorine 1500 mg/L with a 30 min contact time could destroy the antigenicity of HBsAg on stainless steel coupon. The disinfectant solution containing available chlorine 2000 mg/L was not corrosive to stainless steel, slightly corrosive to aluminum and copper and moderately corrosive to carbon steel. Conclusion: Jun-Li-Ke disinfection powder has highly effective germicidal action and is corrosive to metals.