Medical Masks bacterial filtration efficiency tester | ASTM ISO Testing Machine
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Medical Masks bacterial filtration efficiency tester also called BFE test machine 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.
Application
This machine is suitable for metrological verification departments, scientific research institutes, mask manufacturers and other relevant departments to measure the bacterial filtration efficiency (BFE) of medical face mask materials.
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
Parameters
|
Sampling flow rate of Path A |
28.3L/min |
|
Sampling flow rate of Path B |
28.3L/min |
|
Nebulization flow rate |
(8~10)L/min |
|
Peristaltic pump flow rate |
0.006~3mL/min |
|
Negative pressure of aerosol chamber |
-90~-120Pa |
|
Negative pressure of cabinet body |
(-50~-200)Pa |
|
Andersen |
I>7μm,II.4.7-7μm,III.3.3-4.7μm,IV.2.1-3.3μm,V.1.1-2.1μm VI.0.6-1.1μm |
|
Size ofglassaerosol chamber |
L600×diameter85Xthick3)mm |
|
OuterDimension |
1180*650*1300cm(L*W*H)mm |
|
Power supply |
220V50Hz |
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