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.
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;
2.Peristaltic pump was built in the negative pressure cabinet, A & B two routes 6 level Andersen sampling head. 3.The flow speed of peristaltic pump can be set. 4.The spray flow of bacterial liquid inside the special microbial aerosol generator can be set. 5.BFE tester good atomization effect. 6.Embedded high speed industrial microcomputer control. 7.10.4 "industrial high brightness color touch screen display. 8.USD connector, support USB data archived
9.Mask BFE Tester high brightness light installed in the cabinet.
10.Switching type glass door in front of the machine, easy to observe by the operator.
Key Specification
Model
GT-RA02
Key Specification
Specification Range
Resolution
Max.permissible errors
A Route Sampling Flow
28.3L/min
0.1L/min
Within ± 2.0%
B Route Sampling Flow
28.3L/min
0.1L/min
Within ±2.0%
Spray Flow
(0.1～10)L/min
0.1L/min
Within ±5.0%
Peristaltic Pump Flow
(0.001～3.0)mL/min
0.001ml/min
Within ±2.0%
Negative Pressure of the Chamber
(-90～-120)Pa
0.1Pa
Within ±1.0%
Working Temperature
0-50℃
Data Save Ability
＞500000 sets（Scalable capacity）
High Efficiency Particulate Air Filter Properties
≥99.995%@0.3μm,≥99.995%@0.12μm
Median diameter of aerosol generator mass
Average diameter: (3.0±0.3)μm; Geometric Standard Deviation≤1.5
Double Routes 6-lever Andersen Sampling apparatus
LevelⅠ＞7μm; Level Ⅱ: (4.7～7)μm;
Level Ⅲ: (3.3～4.7)μm; Level Ⅳ: (2.1～3.3)μm;
Level Ⅴ: (1.1～2.1)μm; Level Ⅵ: (0.6～1.1)μm
Size of Aerosol Chamber
600×80×3mm (Length×Diameter×Thickness)
Total number of positive quality control sampler particles
