| abstract |
PROBLEM TO BE SOLVED: To provide a method for measuring bacterial filtration efficiency of cloth. The method passes through a step of preparing a solution containing bacteria, peptone water, and NaCl, a step of supplying the solution containing bacteria to a nebulizer, a step of generating an aerosol of the bacterial solution, and a cascade impactor. The solution of NaCl in peptone water used to prepare the bacterial solution, comprising the step of flowing the solution to provide multiple bacterial colonies in multiple plates present at multiple stages of the cascade impactor. The concentration is in the range of 30 to 150 g / l, and the temperature of the cascade impactor is in the range of −15 to 15 ° C. [Selection diagram] None |