Analysis of technical characteristics of bacterial filtration efficiency tester

The main performance indexes of the Bacterial Filtration Efficiency Tester for melt-blown filter materials not only meet the requirements of the test instrument B.1.1.1 of the test method for bacterial filtration efficiency (BFE) in Appendix B of Technical Requirements for Melt-blown Filter Materials for Medical Surgery YY0469-2011, but also meet the requirements of ASTMF2100, ASTMF2101 and European EN14683 standards, and innovative improvements have been made on this basis. The sampling accuracy is improved by adopting the method of simultaneous comparison sampling with two air channels, which is suitable for the performance test of bacterial filtration efficiency of meltblown filter materials by metrological verification departments, scientific research institutes, meltblown filter material production enterprises and other relevant departments.


 

Implementation standard:

Q/0212ZRB003-2011 Bacterial Filter Efficiency (BFE) Tester for Medical Surgery Meltblown Filter Media

Technical features:

Negative pressure experimental system ensures the safety of operators, and the flow rate of peristaltic pump can be set; The built-in lighting lamp in the cabinet body has a built-in leakage protection switch, the inner layer of stainless steel is integrally processed and molded, and the outer layer is sprayed with a cold-rolled plate.

Front switch type glass door, detachable bracket, adjustable bracket height; Move dual-purpose casters.

Main parameters:

1. sampling flow of route a: 28.3L/min

2. Sampling flow rate of route B: 28.3L/min3. Spray flow rate: (8 ~ 10) L/min

4. Flow rate of peristaltic pump: (0.006 ~ 3.0) ml/min

5. Pressure in front of flowmeter in A: (-20 ~ 0) kPa

6. Pressure before B-way flowmeter: (-20 ~ 0) kPa 7. Pressure before spray flowmeter: (0 ~ 300) kPa 8 Ambient temperature: room temperature

9. Negative pressure of aerosol chamber: (-90 ~-120) Pa

10. Negative pressure of cabinet:-50 ~-150 Pa

11. specification and quantity of vortex mixer test tubes: φ Φ16×150mm test tubes, eight

12. Flow rate of peristaltic pump: (0.006 ~ 3.0) ml/min

13. specification of aerosol chamber: 300mm (length) ×15mm(0 diameter)

14. Spray flow rate: (8 ~ 12) L/min

15. Ventilation flow rate of negative pressure cabinet: 3 vertical /MIN

16. dimension of negative pressure cabinet door w× d: 1000× 730mm

17. the size of main engine is w× d× h: 1180× 650× 1300mm

18. the size of the bracket is w× d× h: 600× 60× 600mm, and the height is adjustable within 10cm

19. weight of the whole machine: about 180kg

20. working power supply: ac220v 10%, 50Hz

21 power consumption: 2000w