Mask&Protective cloth Tester

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Bacterial Filtration Efficiency Tester

Bacterial Filtration Efficiency Tester

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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.
 
Application:
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
 
Feature:
1.Bacterial Filtration Efficiency Tester Of Mask: Negative pressure testing system, which can protect operator’s safety.
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.
 
Parameter:
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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