Comparative study on the test methods and results of three different filter performance testers
The filter performance tester is an equipment specially used to detect the filtration efficiency of particulate matter,and it is very important to measure the protective effect of filter materials.In this paper,masks were used as test samples,and the test data of three kinds of filtration performance testers with photometer,particle size spectrometer and particle counter as test components were compared and analyzed.The results showed that:each of the three instruments has its own advantages,and the accuracy of each instrument was good;considering the cost,the cost performance of particle counter instrument is higher;the precision of pho-tometer and particle size spectrometer was both higher;in addition,the particle size spectrometer instrument can provide users with the classification filtration efficiency of different particle sizes,which is more widely used.This paper provided guidance for the selection of testing equipment for mask filtration performance.
face maskfiltration efficiencyphotometerparticle size spectrometerparticle counterclassification filtration efficiency
万方数据
维普
