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Mask Bacterial Filtration Efficiency Tester(BFE) Textile Testing Equipment
Usage
Bacterial Filtration Efficiency Tester is used to detect various medical and daily protective mask materials and filter out the percentage of bacteria-containing suspended particles (BFE) under the specified flow rate.
Mask Bacterial Filtration Efficiency Tester is composed of aerosol generating system, aerosol chamber and aerosol transmission device, negative pressure cabinet, 28.3L / min C sampler, etc. The entire detector is controlled by the console. The console uses a microcomputer control system to coordinate and control the work of the aerosol generation system, transmission system, negative pressure cabinet, and sampling system, and displays the working status in real time. The entire measurement work is automatically completed.
Test standard
YY0469-2004,YY/T 0969-2013,ASTMF2100,ASTMF2101,EN14683 ect.
Technical parameters
| Sampling flow | 28.3L / min, resolution: 0.1L / min, accuracy: ± 2.5% |
| Spray flow | 8 ~10L / min, resolution: 0.1L / min, accuracy: ± 5% |
| Peristaltic pump flow | 0.006 ~3.0ml / min, resolution: 0.001ml / min, accuracy: ± 2% |
| Pressure before sampling flowmeter | -20 ~0KPa resolution: 0.01KPa, accuracy: ± 2% |
| Front pressure of spray flow meter | 0 ~300KPa, resolution: 0.1KPa, accuracy: ± 2% |
| Aerosol chamber negative pressure | -90 ~-120Pa, resolution: 0.1Pa, accuracy: ± 1% |
| Working temperature | 0-50 ℃ |
| Cabinet negative pressure | > 120Pa |
| Data storage capacity | > 500000 sets, capacity can be expanded |
| High-efficiency air filtration performance | The filtration efficiency of particles above 0.3um is ≥99.995%, the filtration efficiency of particles above 0.12um is ≥99.9995% |
| Median mass diameter of aerosol generator | 3.0 ± 0.3μm, geometric standard deviation ≤1.5 |
| Dual 6-stage Anderson sampler capture particle size | I> 7μm, II>4.7-7μm, III >3.3-4.7μm, IV >2.1-3.3μm, V> 1.1-2.1μm, VI >0.6-1.1 μm |
| Aerosol chamber specifications | 60cmX8.5 cmX 3cm (LxWxH) |
| Total number of positive control sampler particles | 2200 ± 500cfu |
| Ventilation flow of negative pressure cabinet | ≥5m3 / min |
| Negative pressure cabinet door size | 1000 X 730mm |
| Host size | 1180 X 650 X1300mm (WxDxH) |
| Bracket size | 1180 X 650 X 600mm (WxDxH), height adjustable within 10 cm |
| Instrument noise | <65dB (A) |
| Machine weight | about 150kg |
| Power | AC220V ± 10%, 50Hz ,power consumption: <1500W |
Features
Negative pressure test system to ensure the safety of operators.
The negative pressure cabinet has a built-in peristaltic pump, A and B two-way six-stage Anderson.
The flow rate of the peristaltic pump can be set according to the situation.
The flow rate of the bacterial liquid mist of the special microbial aerosol generator can be set, and the atomization effect is good.
Industrial microcomputer control.
High-brightness color touch screen.
USB interface, support U disk data transfer.
Built-in high-brightness lights. Easy to observe.
Built-in built-in leakage protection switch to protect the safety of operators.
The front glass door is convenient for the operator to observe the operation.
