摘要
在 16m3气雾室中 ,采用Devibiss气溶胶发生器 ,在 0 0 3～ 0 0 4MPa压力下 ,以 0 8m3/h流量喷含 1 0 %蛋白胨的白色葡萄球菌菌悬液形成气溶胶。结果 ,直径 <4 7μm的气溶胶粒子平均占 82 57%。在室温 2 0～ 2 5℃ ,相对湿度为 55%～ 70 %条件下 ,4 0min内其自然衰亡率不超过 38 0 0 % ,能维持试验菌数为 5× 10 4 ～ 5× 10 5cfu/m3。自然菌试验表明 ,采空气自然菌的平板 ,培养 72h比 4 8h为好。
In a 16 m 3 aerosol chamber, Devibiss aerosol generator at a pressure of 0 03-0 04 MPa and a flow rate of 0 8 m 3 /hr was used to atomize the suspension of Staphylococcus albus containing 1 0% peptone The results indicated that the aerosol particles with diameter <4 7 μm accounted for 82 57% in average Under conditions of temperature at 20～25℃ and relative humidity at 55%～70%, the natural decay rate of bacterial aerosol did not exceed 38 00% and the test bacterial count could be maintained at 5×10 4 ～5×10 5 cfu/m 3 within 40 min after atomization The natural bacteria test indicated that it was suitable to incubate the agar plate loaded with air natural bacteria after sampling for 72 hr
出处
《中国消毒学杂志》
CAS
2000年第1期18-21,共4页
Chinese Journal of Disinfection
关键词
试验
空气消毒
细胞气溶胶
白色葡萄球菌
disinfection test method air disinfection bacterial aerosol Staphylococcus albus
