- Jinan Bojan Testing Machine Co.,Ltd
-
Ji'nan, Shandong, China
- Main products: Electronic universal testing machine, Hydraulic universal testing machine, compression testing machine, tensile testing machine, spring testing machine, fatigue testing machine, torsion testing machine, bend testing machine, Impact testing machine, Horizontal tensile testing machine, Drop impact testing machine
Home > Products > Mask Testing Machine > Mask PFE Test Instrument+photometer method
Mask PFE Test Instrument+photometer method
- Qingdao
- T/T
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Product Details
| Brand Name | BOJAN | Place of Origin | China | |
| Model Number | BJK-Y | Power | Electronic | |
| Usage | Other |
Product Description
EN149 Particulate Filtration Efficiency Tester
1.Product Description
This machine specifies a method to test filtration performance of particulate matter of textile.This machine is applicable to air filtration fabrics, face masks and other products.
2 Principle
The aerosol with a certain particle size is produced by the aerosol generating system, and the aerosol is used as the test medium to simulate pollutants in the environment. Under specified test conditions, the aerosol passes through specimen, and the aerosol accumulates on the surface of the specimen, filtration efficiency, initial press drop, final press drop, filter time or dust-hold capacity are calculated when the dust-hold capacity or filtration resistance of the specimen reaches a certain value, so as to represent the filtration performance of the sample.
3.Technical Parameters
Filtering method | Photometer | |
Test medium | 1% NaCL | DOP |
Aerosol flow | 95L/min | 95L/min |
Aerosol concentration | 8±4 mg / m3 | 20±5 mg / m3 |
Particle size distribution | 0.04um-1.00um | 0.05um-1.7um |
Test temperature | ambient | From 100 to 110℃ |
Filtration efficiency | 0.001 ~ 99.999% | |
pressure | 500Pa | |
Test area | 100cm2 | |
Test temperature | ambient | |
Relative humidity | Less than 60% | |
Test time | 30±3sec | |
4. Test Standards:
EN 143-2000 EN 149-2001
EN14683-2019+AC-2019 IEST-RP-CC021.1 NIOSH 42 CFR Part 84
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Contact Us
- Jinan Bojan Testing Machine Co.,Ltd
- Contact nameLin Chat Now
- AddressZhangqiu, Ji'nan, Shandong
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