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
Applications:
Mask Bacterial Filtration Efficiency Tester is applied to test the filtration efficiency of mask, can be used in metering calibration department, scientific research institution, mask manufacturer and other related departments.
Product Information:
Mask bacterial filtration efficiency (BFE) tester is mainly applicable to the measurement and verification departments, scientific research institutes, medical mask manufacturers and relevant testing departments for the performance of mask bacterial filtration efficiency.It is composed of aerosol generation system, aerosol chamber and aerosol transmission device, negative pressure cabinet and 28.3l /min sampler.The whole tester is controlled by the console.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.
| Main Parameter | Parameter range |
| vacuum pump | Oil-free rotary vane vacuum pump, maximum flow up to 57LPM, equipped with muffler, stable airflow |
| Aerosol generator flow control | The flow control of aerosol generator adopts mass flow control and the control is accurate |
| Channel I sampling flow | Anderson sampling flow of 28.3 L/min, resolution: 0.1 L/min |
| sampling flow | Anderson sampling flow of 28.3 L/min, resolution: 0.1 L/min |
| sampling | Equipped with mass flow controller |
| Pneumatic pressure | 0-5KPa |
| Spray flowmeter pressure | 0-300KPa |
| aerosol chamber negative pressure | 0-120KPa |
| Working Temperature | 0-50℃ |
| Cabinet negative pressure | 0-120Pa |
| 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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