respirator bacterial filter tester

The main performance indexes of the respirator bacterial filter tester not only meet the requirements of test instrument b.1.1.1 in Appendix B of technical requirements for medical surgical masks (yy0469-2011), but also meet the requirements of ASTM f2100, ASTM f2101 and European en14683, On this basis, the innovative improvement is carried out, and the method of double gas path simultaneous comparison sampling is adopted to improve the accuracy of sampling, which is applicable to the performance test of the bacterial filtration efficiency of the mask by the metrological verification department, scientific research institutes, mask manufacturers and other relevant departments.

Executive standard: Q / 0212 zrb003-2011 bacterial filtration efficiency (BFE) tester for medical surgical masks

technical parameter

1. Sampling flow of channel A: 28.3l/min
2. Sampling flow of circuit B: 28.3l/min
3. spray flow: (8~10) L/min
4. Peristaltic pump flow: (0.006 ～ 3.0) ml / min
5. Front pressure of a-way flowmeter: (- 20 ～ 0) kPa
6. Front pressure of b-way flowmeter: (- 20 ～ 0) kPa
7. front pressure of spray flowmeter: (0~300) KPa
8 ambient temperature: room temperature
9. Negative pressure of air mist chamber: (- 90 ~ - 120) Pa
10. Cabinet negative pressure: - 50 ~ - 150pa
11. Tube specification and quantity of vortex mixer: Φ 16 × 150 mm, eight tubes
12. Peristaltic pump flow: (0.006 ～ 3.0) ml / min
13. Aerosol chamber specification: 300 mm (length) × 15 mm (0 diameter)
14. spray flow: (8~12) L/min
15. Ventilation flow of negative pressure cabinet: 3L / min
16. Negative pressure cabinet door size w × D: 1000 × 730mm
17. Host size w × D × H: 1180 × 650 × 1300mm
18. Bracket size w × D × H: 600 × 60 × 600mm, height adjustable within 10cm
19. Total weight: About 180kg
20. Working power supply: AC220V ± 10%, 50Hz
21 power consumption: 2000W

Main configuration:

1: One negative pressure test chamber
2. One set of test stand
3: One set of peristaltic pump
4: Two sets of flow sensors
5: One set of vortex mixer
6: One set of aerosol generator
7: Two sets of gas acquisition sensors
8. A set of special measurement and control computer
9: A set of test software
10: HP color inkjet printer set