Particle detector BFE detector brand

Description :

　　Instructions for Bacterial Filtration Efficiency Tester: The main performance indicators not only comply with the requirements of Appendix B Bacterial Filtration Efficiency (BFE) Test Method B.1.1.1 of the "Technical Requirements for Medical Surgical Meltblown Filter Media" YY0469-2011, but also meet the requirements of the American Society for Testing and Materials ASTMF2100, ASTMF201, and European EN14683 standards. Based on this, innovative improvements have been made, using a dual gas path simultaneous comparative sampling method to improve the accuracy of sampling. It is suitable for performance testing of bacterial filtration efficiency of meltblown filter media by metrological inspection departments, research institutes, meltblown filter media production enterprises, and other relevant departments.

　　The mask filtration efficiency testing device is used to test the protective effect and filtration efficiency of daily protective masks and respirators against particulate matter. Applicable to medical device inspection centers, safety protection inspection centers, labor protection inspection centers, drug inspection centers, disease prevention and control centers, textile testing centers, mask and respirator production enterprises, etc.

　　The testing principle of the bacterial filtration efficiency tester is to simulate the actual use state of the mask sample and install it on the head mold rack. The mask passes over the igniter with a constant flame height at a certain linear velocity along with the head mold, observes the combustion of the mask, records the duration of continuous combustion and smoldering, and evaluates whether the mask is qualified.

　　The main configuration of the bacterial filtration efficiency detector is:

　　1. One negative pressure test chamber;

　　2. One set of test stand;

　　3. A set of peristaltic pumps;

　　4. Two sets of flow sensors;

　　5. One set of vortex mixer;

　　6. One set of aerosol generator;

　　7. Two sets of gas collection sensors;

　　8. A set of measurement and control computers;

　　9. One set of experimental software;

　　10. A set of HP color inkjet printers.

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