Filter Material Test Bench
Filter material test bench is designed and manufactured based on the exploration and experiments on the technological process with reference of YY0469-2004 and GB2626-2006. At the same time it takes the reference of advanced designing concepts of international similar equipment, (such as the United States TSI company), and it is based on the "European standard EN1822-3: 1998, but appropriate for the test status in domestic related industry.
DEHS aerosol generator or NaCl aerosol generator or the atmospheric air to determine the resistance, flow, efficiency and other performances for a variety of filters, medical masks and labor protection products. The user-friendly design features simple operation and a wide range of application. It provides a complete data parameter to the sample instantly.
Standards
1. YY0469-2004 Technical requirements for surgical mask
2. GB2626-2006 Respiratory protective equipment -- non-powered air-purifying particle respirator
3. EN1822-3: 1998 High efficiency particulate air filters (HEPA and ULPA) - Part 3: Testing flat sheet filter media
Technical Parameters
Items | Parameters |
Applicable
to the measured object | Fiberglass
filter material, PP filter material, membrane covered filter
material |
Test
class of particle size | 0.3,
0.5, 1.0, 2.0, 5.0, 10.0 μm (six classes) |
Flow
range | 20～100
l/min |
Resistance
range | 0～1000
Pａ (standard) |
Dust
Source | Aerosol
(DEHS), sodium salt (2%NaCl solution),
atmosphere |
Effective
test area | 100
cm2 |
Electrostatic
neutralization device, heating power | 300W/220V |
Power | 220V/
50 Hｚ |
System
power consumption | ＜1500W |
Dimension | 910
mm (wide)×780 mm (depth)×1400 mm
(height) |
Technical Parameters
Items | Parameters |
Applicable to the measured object | Fiberglass filter material, PP filter material, membrane covered filter material |
Test class of particle size | 0.3, 0.5, 1.0, 2.0, 5.0, 10.0 μm (six classes) |
Flow range | 20～100 l/min |
Resistance range | 0～1000 Pａ (standard) |
Dust Source | Aerosol (DEHS), sodium salt (2%NaCl solution), atmosphere |
Effective test area | 100 cm2 |
Electrostatic neutralization device, heating power | 300W/220V |
Power | 220V/ 50 Hｚ |
System power consumption | ＜1500W |
Dimension | 910 mm (wide)×780 mm (depth)×1400 mm (height) |
Configurations
● DEHS aerosol generator * 1 set.
● NaCl salt generator *1 set.
● Laser dust particle counter * 2 set (2.83 L/min ).
● Micro differential pressure meter ( import) *1 ( 0-1000Pa, digital display).
● Flowmeter *2 ( 10-100L/min ).
● High pressure air blower * 1 set.
● Electrostatic neutralization device *1 group.
● Special spray air pump *1 set.
● Oil-free air compressor * 1 set(200L/min)(accessory).
● Standard fixture *1 pair (effective test area 100 cm2).
● Control valve * 6.
● 50 cm2 (circular type )area board *1pair(accessory).
● Test software CD * 1 piece (accessory).
● Computer *1 set (accessory).
FAQ
(1)What parameters can this system measure?
It measures filtration efficiency, airflow resistance, and particle penetration across different particle sizes. These parameters are essential for evaluating how well a material can filter airborne particles while maintaining acceptable airflow resistance.
(2)What types of materials are suitable for testing?
The system is suitable for fiberglass filters, polypropylene filter media, membrane-coated materials, and filtration layers used in masks and respirators.
(3)Why are different aerosols used in testing?
Different aerosols simulate different environments. Oil-based aerosols like DEHS represent liquid particles, while NaCl represents solid particles, allowing comprehensive evaluation of filter performance.
(4)What is the role of the electrostatic neutralization device?
It removes electrostatic charges from particles to ensure that filtration efficiency results are not affected by electrostatic attraction, improving test accuracy.
(5)Who typically uses this equipment?
This system is commonly used by mask manufacturers, filter material producers, research institutes, and third-party laboratories for product development, certification, and quality control.
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