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Face Masks bacterial filtration efficiency BFE 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 tester provides certain flow rate of bacterial aerosol. The operator can measure the number of colony forming units passing through the medical face mask material, which is clamped between a six-stage Anderson cascade impactor and an aerosol chamber, expressed as a percentage of the number of colony forming units present in the challenge aerosol.LudTextile Testing Instruments, Testing Equipment Manufacturer
LudTextile Testing Instruments, Testing Equipment Manufacturer
Standards of Masks Bacterial Filtration Efficiency Tester:>LudTextile Testing Instruments, Testing Equipment Manufacturer
LudTextile Testing Instruments, Testing Equipment Manufacturer
YY 0469 Technical requirements for surgical maskLudTextile Testing Instruments, Testing Equipment Manufacturer
BS EN 14683 Medical face masks - Requirements and test methodsLudTextile Testing Instruments, Testing Equipment Manufacturer
ASTM F2100 Standard Specification for Performance of Materials Used in Medical Face MasksLudTextile Testing Instruments, Testing Equipment Manufacturer
ASTM F2101 Standard Test Method for Evaluating the Bacterial Filtration Efficiency (BFE) of Medical Face Mask Materials, Using a Biological Aerosol of Staphylococcus aureusLudTextile Testing Instruments, Testing Equipment Manufacturer
NBR 15052LudTextile Testing Instruments, Testing Equipment Manufacturer
LudTextile Testing Instruments, Testing Equipment Manufacturer
Video Description:>LudTextile Testing Instruments, Testing Equipment Manufacturer
LudTextile Testing Instruments, Testing Equipment Manufacturer
youtu.be/i0EM6Zr9hxkLudTextile Testing Instruments, Testing Equipment Manufacturer
LudTextile Testing Instruments, Testing Equipment Manufacturer
Feature of BFE Testing Machine:>LudTextile Testing Instruments, Testing Equipment Manufacturer
LudTextile Testing Instruments, Testing Equipment Manufacturer
1. Negative pressure testing system, which can protect operatorrsquo;s safety.LudTextile Testing Instruments, Testing Equipment Manufacturer
2. Peristaltic pump was built in the negative pressure cabinet, A amp; B two routes 6 level Andersen sampling head.LudTextile Testing Instruments, Testing Equipment Manufacturer
3. The flow speed of peristaltic pump can be set.LudTextile Testing Instruments, Testing Equipment Manufacturer
4. The spray flow of bacterial liquid inside the special microbial aerosol generator can be set.LudTextile Testing Instruments, Testing Equipment Manufacturer
5. Good atomization effect.LudTextile Testing Instruments, Testing Equipment Manufacturer
6. Embedded high speed industrial microcomputer control.LudTextile Testing Instruments, Testing Equipment Manufacturer
7. 10.4 quot;industrial high brightness color touch screen display.LudTextile Testing Instruments, Testing Equipment Manufacturer
8. USD connector, support USB data archivedLudTextile Testing Instruments, Testing Equipment Manufacturer
9. High brightness light installed in the cabinet.LudTextile Testing Instruments, Testing Equipment Manufacturer
10.Switching type glass door in front of the machine, easy to observe by the operator.LudTextile Testing Instruments, Testing Equipment Manufacturer
LudTextile Testing Instruments, Testing Equipment Manufacturer
Parameter of BFE Tester:>LudTextile Testing Instruments, Testing Equipment Manufacturer
Key Specification |
Specification Range |
Resolution |
Max. permissible errors |
A Route Sampling Flow |
28.3L/min |
0.1L/min |
Withinplusmn; 2.0% |
B Route Sampling Flow |
28.3L/min |
0.1L/min |
Within plusmn;2.0% |
Spray Flow |
(8~10)L/min |
0.1L/min |
Within plusmn;5.0% |
Peristaltic Pump Flow |
(0.006~3.0)mL/min |
0.001ml/min |
Within plusmn;2.0% |
Front Pressure of A Route Sampling Flowmeter |
(-20~0)kPa |
0.01kPa |
Within plusmn;2.0% |
Front Pressure of B Route Sampling Flowmeter |
(-20~0)kPa |
0.01kPa |
Within plusmn;2.0% |
Front Pressure of Spray Flowmeter |
(0~300)kPa |
0.1kPa |
Within plusmn;2.0% |
Negative Pressure of the Chamber |
(-90~-120)Pa |
0.1Pa |
Within plusmn;1.0% |
Working Temperature |
0-50℃ |
Negative Pressure of the Chamber |
>120Pa |
Data Save Ability |
>500000 sets(Scalable capacity) |
High Efficiency Particulate Air Filter Properties |
ge;99.995%@0.3mu;m,ge;99.995%@0.12mu;m |
Median diameter of aerosol generator mass |
Average diameter: (3.0plusmn;0.3)mu;m; Geometric Standard Deviationle;1.5> |
Double Routes 6-lever Andersen Sampling apparatus |
LevelⅠ>7mu;m; Level Ⅱ: (4.7~7)mu;m;LudTextile Testing Instruments, Testing Equipment Manufacturer Level Ⅲ: (3.3~4.7)mu;m;LevelⅣ: (2.1~3.3)mu;m;LudTextile Testing Instruments, Testing Equipment Manufacturer Level Ⅴ: (1.1~2.1)mu;m; Level Ⅵ: (0.6~1.1)mu;m |
Size of Aerosol Chamber |
600times;80times;3mm (Lengthtimes;Diametertimes;Thickness) |
Total number of positive quality control sampler particles |
(2200plusmn;500)cfu |
Negative Chamber Flow Speed |
ge;5m3/min |
Size of Main Machine |
LudTextile Testing Instruments, Testing Equipment Manufacturer LudTextile Testing Instruments, Testing Equipment Manufacturer 1470times;790times;2100mm (Ltimes;Wtimes;H)LudTextile Testing Instruments, Testing Equipment Manufacturer
|
Power Supply |
AC220Vplusmn;10%, 50Hz |
Noise of the Tester |
<65dB(A) |
Weight |
asymp;150kg |
Power Consumption |
<1500W |
LudTextile Testing Instruments, Testing Equipment Manufacturer
LudTextile Testing Instruments, Testing Equipment Manufacturer
Medical mask bacterial filtration efficiency tester, also known as BFE Tester, by using the ratio of the upstream bacterial challenge to the downstream residual concentration of the measured medical mask material, to determine the medical mask material(such as meltblown fabric)bacterial filtration efficiency(BFE).The machine provides a certain flow rate of bacterial aerosols.
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