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Mask Bacterial Filtration Efficiency (BFE) Tester

Product No: WKS-1010

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Specifications

WKS-1010 Mask Bacterial Filtration Efficiency (BFE) Tester is used to test the percentage of the mask material to filter out the suspended particles containing bacteria under the specified flow rate. It is suitable for the performance test of the bacterial filtration efficiency of medical surgical masks by metrological inspection departments, scientific research institutes, medical mask manufacturers and other related departments.

Standard:
YY0469-2011、YY/T 0969-2013

Specifications:

Main parameter

Parameter range

Resolution

Accuracy

Sampling flow

28.3L/min

0.1L/min

Better than ±2.5%

Spray flow

(8~10)L/min

0.1L/min

Better than ±2.5%

Peristaltic pump flow

(0.006~3.0)ml/min

0.001ml/min

Better than ±2.5%

Front pressure of flowmeter

(-20~0)KPa

0.01KPa

Better than ±2.5%

Front pressure of Spray flowmeter

(0~300)KPa

0.1KPa

Better than ±2.5%

Ambient temperature

(-40~99)℃

0.1℃

Better than ±2.5%

Negative pressure of aerosol chamber

(-90~-120)Pa

0.1Pa

Better than ±2.0%

Negative pressure of cabinet

-50~-200Pa

Data storage capacity

>100000 groups

Specification and quantity of vortex mixer test tube

Φ16×150mm tube;8

High efficiency air filter characteristics

Filtration efficiency for particles above 0.3um≥99.99%

Mass median diameter of aerosol generator

3.0± 0.3μm,Geometric standard deviation≤1.5

Integrated 6 Grades Andersen

Sampler capture particle size

Grade I>7μm,Grade Ⅱ(4.7~7)μm,Grade Ⅲ(3.3~4.7)μm,Grade Ⅳ(2.1~3.3)μm,Grade Ⅴ(1.1~2.1)μm,Grade Ⅵ(0.6~1.1)μm

Aerosol chamber specifications

60cm(Length)×8.5 cm(Diameter)× 3cm(Thickness)

Total number of particles of positive quality control sampler

2200±500cfu

Ventilation flow of negative pressure cabinet

≥5m3/min

Size of negative pressure cabinet

755×400×990mm (W×D×H)

Size of host

1200×630×2100mm (W×D×H)

Instrument noise

<65dB(A)

Total Weight

About150kg

Power supply

AC220V±10%,50Hz

Power consumption

<1500W

Features: