Mask Bacterial Filtration Efficiency (BFE) Detector ASTMF2299/ASTMF2299 03(2017), EN14683-2019,ASTMF2101-19
Product overview:
This PFE testing machine is used to measure the bacterial filtration efficiency (BFE) of medical face mask materials, employing a ratio of the upstream bacterial challenge to downstream residual concentration to determine filtration efficiency of medical face.
Standards:
ASTMF2299/ASTMF2299 03(2017), EN14683-2019,ASTMF2101-19.
Technical Parameters:
Technical characteristics of mask bacterial filtration efficiency (BFE) detector
2.1 Negative pressure experiment system to ensure the safety of operators;
2.2 Built-in peristaltic pump in negative pressure cabinet, A and B two-stage six-stage Andersen;
2.3 Flow rate of peristaltic pump can be set;
2.4 Dedicated microbial aerosol generator can be set at night.
2.5 atomization effect is good;
2.6 Embedded high-speed industrial microcomputer control;
2.7 10.4-inch industrial-grade high-brightness color touch display;
2.8 USB interface, support U disk data transfer;
2.9 Cabinet with built-in high-brightness lighting;
2.10 Built-in leakage protection switch to protect operator safety;
2.11 The inner layer of the stainless steel is integrally processed and formed, and the outer layer is spray-coated cold-rolled sheet
2.12 Insulation and flame retardant between inner and outer layers;
2.13 front switch glass door, convenient for experimenters to observe and operate;
2.14 detachable bracket, height of bracket can be adjusted;
2.15 Support and move dual-purpose casters.
Technical index:
| Main parameters |
Parameter range |
Resolution |
Maximum allowable error |
| A channel sampling flow rate |
28.3L/min |
0.1L/min |
better than ±2.5% |
| B channel sampling flow rate |
28.3L/min |
0.1L/min |
better than ±2.5% |
| Spray flow |
(8～10)L/min |
0.1L/min |
better than ±5.0% |
| Peristaltic pump flow |
(0.006～3.0)mL/min |
0.001ml/min |
better than ±2.5% |
| Front pressure of channel A |
(-20～0)kPa |
0.01kPa |
better than ±2.5% |
| Front pressure of channel B |
(-20～0)kPa |
0.01kPa |
better than ±2.5% |
| Pressure before spray flowmeter |
(0～300)kPa |
0.1kPa |
better than ±2.5% |
| Aerosol chamber negative pressure |
(-90～-120)Pa |
0.1Pa |
better than ±2.0% |
| Operating temperature |
(0～50)℃ |
| Cabinet negative pressure |
(-50～-200)Pa |
| Data storage capacity |
＞100000 groups |
| HEPA filter characteristics |
Filtration efficiency for particles above 0.3um ≥99.99% |
| Aerosol generator mass median diameter |
Average particle diameter (3.0 ± 0.3) μm, geometric standard deviation ≤1.5 |
| Dual 6-stage Anderson sampler captures particle size |
Ⅰ＞7μm,Ⅱ(4.7～7)μm,Ⅲ(3.3～4.7)μm,Ⅳ(2.1～3.3)μm,Ⅴ(1.1～2.1)μm,Ⅵ(0.6～1.1)μm |
| Aerosol chamber specifications |
(Length 600 x diameter 85 x thickness 3) mm |
| Total number of positive QC sampler particles |
(2200±500)cfu |
| Negative pressure cabinet ventilation flow |
≥5m3/min |
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