Respirator Bacterial Filtration Efficiency (BFE) Tester applied to performance test of the bacterial filtration efficiency of surgical masks by the metrological verification department, scientific research institutes, mask manufacturers and other relevant departments.
Respirator Bacterial Filtration Efficiency (BFE) Tester (required item for Medical face mask)
Application:
Applied to performance test of the bacterial filtration efficiency of surgical masks by the metrological verification department, scientific research institutes, mask manufacturers and other relevant departments.
Standards:
YY0469-2011 < Medical grade surgical face mask> Fig. B.1 and Fig. B.2 in Appendix B
Features:
1. Negative pressure test system to ensure the safety of operators;
2. Built - in peristaltic pump in the negative pressure cabinet, A, B, four Andersen;
3. The peristaltic pump flow can be set;
4. The flow rate of night spray of special microorganism aerosol generator can be set;
5. Good atomize effect;
6. Embedded high-speed industrial microcomputer control;
7. 10.4 inch industrial high brightness color touch screen;
8. USB interface, support U disk data storage;
9. Cabinet built-in high brightness lights;
10. Front opening and closing glass door, convenient for experimenters to observe and operate;
Specifications:
Main Specifications |
Parameter range |
Resolution |
Accuracy |
A Sampling Flow |
28.3L/min |
0.1L/min |
±2.5% |
B Sampling Flow |
28.3L/min |
0.1L/min |
±2.5% |
Spray Flow |
(8~10)L/min |
0.1L/min |
±2.5% |
Peristatic Pump Flow |
(0.006~3.0)ml/min |
0.001ml/min |
±2.5% |
A Road Flow Meter |
(-20~0)KPa |
0.01KPa |
±2.5% |
B Road Flow Meter |
(-20~0)KPa |
0.01KPa |
±2.5% |
Pressure Before Spray Flowmeter |
(0~300)KPa |
0.1KPa |
±2.5% |
Environmental Temperature |
(-40~99)℃ |
0.1℃ |
±2.5% |
Negative Pressure In Aerosol Chamber |
(-90~-120)Pa |
0.1Pa |
±2.0% |
Negative Pressure Of Cabinet |
-50~-200Pa |
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Data Storage Capacity |
>100000 Groups |
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Vortex Mixer Test Tube Specification and Quantity |
Φ16×150 mm test tubes, Eight |
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Characteristics of High Efficiency Air Filter |
The filtration efficiency of particles above 0.3 um ≥99.99% |
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Median Mass Diameter Of Aerosol Generator |
3.0± 0.3μm,Geometric standard deviation ≤1.5 |
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Double Route 4 Andersen |
Level I >7μm,Ⅱ4.7-7μm, Level Ⅲ 3.3-4.7μm,Level Ⅳ 2.1-3.3μm, Level Ⅴ 1.1-2.1μm,Level Ⅵ 0.6-1.1μm |
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Aerosol Chamber Size(L*D*T) |
600*85*30mm |
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Total Particles of Positive Quality Control Sampler |
2200±500cfu |
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Ventilation flow of negative pressure cabinet |
≥5m3/min |
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Negative Cabinet Door Size(W*D) |
1000×730mm |
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Mainframe Size(W*D*H) |
1180×650×1300mm |
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Support Dimensions(W*D*H) |
1180×650×600mm,Adjustable height within 10 cm |
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Instrument Noise |
<65dB(A) |
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Weight |
About 150kg |
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Power Supply |
AC220V±10%,50Hz |
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Power Dissipation |
<1500W |