Mask filtration efficiency test bench, popular material filtration efficiency tester

Description :

　　The detection conditions for the mask particle filtration efficiency tester are: the testing environment temperature is (25 ± 5) C, and the relative humidity is (30 ± 10)%. Testing process:

　　1. Test flow rate (85 ± 4) L/min (if multiple filter elements are used, the flow rate should be evenly divided. If dual filter elements are used, the detection flow rate of each filter element should be (42.5 ± 2) L/mi. If multiple filter elements may be used separately, they should be tested according to the detection conditions of a single filter element). 2. Adjust the filtering efficiency detection system to the detection state and adjust its relevant parameters;

　　2. Use appropriate fixtures to airtightly connect the mouth military body or filter element to the detection device;

　　3. After the testing begins, record the filtration efficiency of the sample with a sampling frequency of 1 time/min. The testing should continue until the particulate matter on the mask is loaded to 30mg; Data processing: Use the small value of the filtration efficiency obtained during the entire testing process as the filtration efficiency of the batch of mask sample materials.

　　The application scope of the mask particle filtration efficiency detector is:

　　The mask particle filtration efficiency detector is suitable for medical device inspection centers, safety protection inspection centers, labor protection inspection centers, drug inspection centers, disease prevention and control centers, mask and respirator production enterprises, etc.

　　The mask particle filtration efficiency detector is suitable for conducting tensile tests on various masks and respirators such as medical masks, disposable masks, and respiratory protective respirators. In addition, mechanical property tests such as stretching, tearing, elongation, and peeling can also be conducted on products such as plastics, woven bags, non-woven fabrics, plastic films, products, PVC pipes, paper and cardboard, woven bags, packing belts, tapes, adhesives, etc; Capable of saving experimental data and results, with functions such as curve display, query, and printing.

　　The mask particle filtration efficiency tester is used to test the particle filtration efficiency of daily protective masks and medical masks, as well as to determine the obstruction performance of ordinary fabrics and medical protective masks with respect to constant airflow. Applicable to medical device inspection centers, safety protection inspection centers, labor protection inspection centers, drug inspection centers, prevention and control centers, textile testing centers, mask consumption enterprises, etc.

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• Mask filtration efficiency testing bench