Bacterial filtration efficiency tester, electric particle detector

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 main purpose of the bacterial filtration efficiency tester is to use a dual gas path simultaneous comparative sampling method to improve the accuracy of sampling. It is suitable for performance testing of mask bacterial filtration efficiency by metrological verification departments, research institutes, mask production enterprises, and other related departments.

　　The bacterial filtration efficiency detector adopts a design system based on negative pressure biosafety cabinet working environment, which is safe and convenient to use, and the quality is controllable. The method of simultaneous comparison sampling with dual gas paths has high sampling and detection efficiency. Adopting a touchable color industrial resistive screen, it can be easily operated in various situations. Applicable to performance testing of mask bacterial filtration efficiency by inspection and quarantine units, metrological verification departments, research institutes, mask production, and related departments.

　　Several technical features of the mask bacterial filtration efficiency detector:

　　1. Key counting module control: digital display counter, can preset 1-99999s time for testing, automatically stops after testing is completed;

　　2. Anti genuine head mold: The mask fixture is a metal human head mold that can fully simulate the actual usage state of the mask;

　　3. High degree of equipment automation: The instrument automatically records the combustion time and flame retardant time, with digital display, equipped with flame temperature measurement probes and flame temperature displays, automatic ignition, and adjustable flame height;

　　4. Negative pressure experimental system to ensure the safety of operators;

　　5. The negative pressure cabinet is equipped with a peristaltic pump, A and B channels of six stages Anderson;

　　6. The flow rate of the peristaltic pump can be set;

　　7. The flow rate of bacteria spray at night of microbial aerosol generator can be set,

　　8. Good atomization effect;

　　9. Embedded high-speed industrial microcomputer control;

　　10. 10.4-inch industrial grade high brightness color touch display screen;

　　11. USB interface, supporting USB data transfer and storage;

　　12. The cabinet is equipped with high brightness lighting fixtures;

　　13. Built in leakage protection switch to protect the safety of operators;

　　14. The inner layer of the cabinet is made of stainless steel and processed as a whole, while the outer layer is made of spray coated cold-rolled plate,

　　15. Insulation and flame retardancy between the inner and outer layers;

　　16. Front switch glass door, convenient for experimental personnel to observe and operate;

　　17. Detachable bracket with adjustable height;

　　18. Dual purpose casters for support and mobility.

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• Bacterial filtration efficiency tester