Jinan, Shandong, China
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.
YY0469-2011,ASTM F2100,ASTM F2101,EN 14683,etc
1,Negative pressure test system ensures operator safety.
2,Negative pressure cabinet built - in peristaltic pump, A,B two - way Anderson
3.Peristaltic pump flow can be set according to the situation.
4.The flow rate of microbial aerosol generator can be set and the atomization effect is good
5.Industrial microcomputer control
6.High brightness color touch screen
7.USB interface, support U disk data storage
8.Built-in high brightness lighting. Convenient for observation
9.Built-in leakage protection switch to protect operators
10.Front glass door, easy for operator to observe operation
|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|
|II sampling flow||Anderson sampling flow of 28.3 L/min, resolution: 0.1 L/min|
|I,II sampling||Equipped with mass flow controller|
|1 Pneumatic pressure||0-5KPa|
|II Pneumatic pressure||0-5KPa|
|Spray flowmeter pressure||0-300KPa|
|aerosol chamber negative pressure||0-120KPa|
|Cabinet negative pressure||0-120Pa|
|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||class>7μm,class(4.7~7)μm, class(3.3~4.7)μm, class(2.1~3.3)μm,class(1.1~2.1)μm, class(0.6~1.1|
|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|
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