口罩过滤效率测试仪
Bacterial Filtration Efficiency Tester is to determine the bacterial filtration efficiency (BFE) of medical face mask materials by employing a ratio of the upstream bacterial challenge to downstream residual concentration of the tested medical face mask materials. The control console adopts microcomputer control system to coordinate and control the work of aerosol generation system, transmission system, negative pressure cabinet and sampling system, and display the working status in real time. The whole measurement work is completed automatically.
Mask Bacterial Filtration Efficiency Tester Standards:
YY 0469-2004 Technical requirements for surgical mask
BS EN 14683-2014 Medical face masks - Requirements and test methods
ASTM F2100-2019 Standard Specification for Performance of Materials Used in Medical Face Masks
ASTM F2101 Standard Test Method for Evaluating the Bacterial Filtration Efficiency (BFE) of Medical Face Mask Materials, Using a Biological Aerosol of Staphylococcus aureus.
| Cabinet negative pressure | Data can be downloaded via usb flash drive |
| Data storage capacity | Data can be downloaded via usb flash drive |
| mass flow controller | 0-20L/min,resolution:0.1 L/min |
| Peristaltic pump flow | (0.01~3.0)mL/min |
| High efficiency air filter characteristics | The filtration efficiency of particles above 0.3um is≥99.99% |
| Median mass diameter of aerosol generator | The average particle diameter was(3.0±0.3)μm,Geometric standard deviation≤1.5 |
| Two-channel 6-stage Anderson sampler captures particle size | Ⅰclass>7μm,class(4.7~7)μm,Ⅲ class(3.3~4.7)μm,class(2.1~3.3)μm,class(1.1~2.1)μm,class(0.6~1.1)μm |
| Fog chamber specifications | (600×80×5)mm |
| Total number of positive quality control sampler particles | (2200±500)cfu |
| Ventilation flow of negative pressure system | 800m³/min |
| Operation room dimension | (740×940×440)mm |
| dimension | About 1200×650×2100mm |
| Instrument noise | <65Db(A) |
| weight | 120kg |
| power consumption | <1500W |
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