VIP member
BZ-3C5C Mask Bacterial Filtration Efficiency (BEF) Detector
【 Scope of Application 】 Suitable for performance testing of mask bacterial filtration efficiency by metrological verification departments, research i
Product details
[Scope of Application]
Suitable for performance testing of mask bacterial filtration efficiency by metrological verification departments, research institutes, mask production enterprises, and other relevant departments.
【Execution standards】
YY 0469-2011 Technical Requirements for Medical Surgical Masks Appendix B Bacterial Filtration Efficiency (BFE)
YY/T 0969-2013 Disposable Medical Masks
ASTMF2100、ASTMF2101、EN14683
Q/0212 ZRB003-2011 Bacterial Filtration Efficiency (BFE) Tester for Medical Surgical Masks
Technical parameters:
1Adopting a dual gas path simultaneous comparative sampling method has improved the accuracy of sampling.
2Negative pressure experimental system to ensure the safety of operators; The negative pressure cabinet is equipped with a peristaltic pump,A. Bilibili Level 6 Anderson; The flow rate of the peristaltic pump can be set;
3The flow rate of special microbial aerosol generator at night can be set, and the atomization effect is good; Embedded high-speed industrial microcomputer control;
410.4-inch industrial grade high brightness color touch display screen; USB interface, supporting USB data transfer and storage;
5The cabinet is equipped with high brightness lighting fixtures; Built in leakage protection switch to protect the safety of operators;
6The inner layer of the cabinet is made of stainless steel and processed as a whole, while the outer layer is made of spray coated cold-rolled sheet. The insulation and flame retardant properties are maintained between the inner and outer layers;
Front switch glass door, convenient for experimental personnel to observe and operate;
7Detachable bracket with adjustable height; Dual purpose casters for support and mobility.
【TECHNICAL INDEX】
|
Parameters |
Parameter range |
resolution |
maximum permissible error |
|
A-channel sampling flow |
28.3L/min |
0.1L/min |
Better than ± 2.5% |
|
B sampling flow rate |
28.3L/min |
0.1L/min |
Better than ± 2.5% |
|
Spray flow |
(8～10)L/min |
0.1L/min |
Better than ± 5.0% |
|
Peristaltic pump flow rate |
(0.006～3.0)mL/min |
0.001ml/min |
Better than ± 2.5% |
|
Pressure in front of A flow meter |
(-20～0)kPa |
0.01kPa |
Better than ± 2.5% |
|
Pressure in front of B-channel flowmeter |
(-20～0)kPa |
0.01kPa |
Better than ± 2.5% |
|
Front pressure of spray flowmeter |
(0～300)kPa |
0.1kPa |
Better than ± 2.5% |
|
Negative pressure in the aerosol chamber |
(-90～-120)Pa |
0.1Pa |
Better than ± 2.0% |
|
operation temperature |
（0~50）℃ |
||
|
Cabinet negative pressure |
(-50～-200)Pa |
||
|
Data storage capability |
>100000 sets |
||
|
Characteristics of high-efficiency air filter |
The filtration efficiency for particles above 0.3um is ≥ 99.99% |
||
|
Mass median diameter of aerosol generator |
Average particle diameter (3.0 ± 0.3) μ m, geometric standard deviation ≤ 1.5 |
||
|
Dual channel 6-stage Anderson sampler captures particle size |
Grade I>7 μ m, Grade II (4.7-7) μ m, Grade III (3.3-4.7) μ m, Grade IV (2.1-3.3) μ m, Grade V (1.1-2.1) μ m, Grade VI (0.6-1.1) μ m |
||
|
Total number of particles in the positive quality control sampler |
(2200±500)cfu |
||
|
Ventilation flow rate of negative pressure cabinet |
≥5m3/min |
||
|
Bracket size |
Height adjustable within 100mm |
||
|
Working power supply |
AC220V±10%，50Hz |
||
|
Instrument noise |
＜65dB(A) |
||
|
Overall Power Consumption |
＜1500W |
||
Online inquiry
-
Contacts
-
Company
-
Telephone
-
Email
-
WeChat
-
Verification Code
-
Message Content
-