DH-PFE Professional Submicron Particulate Filtration Efficiency PFE Tester
Specification
| Applicable filter media |
1. glass fiber filter media
2. PP filter media
3. membrane-coated filter media; etc. |
| Detection particle size grade |
0.3, 0.5, 1.0, 2.0, 5.0, 10.0 µm (six grades) |
| Flow range |
0~150 l / min |
| Detection resistance range |
0~1000 Pa |
| 5. Dust source: |
(1) Aerosol (DEHS)
Quantity in diameter: 0.18um;
Mass diameter: 0.3um;
Geometric deviation: less than 1.8;
(2) Sodium salt (2% NaCl solution)
Quantity in diameter: 0.075um;
Mass diameter: 0.26um;
Geometric deviation: less than 1.6; |
| Standard test area |
100 cm2 |
| Power supply |
220V / 50 Hz |
| System power consumption |
<1500W |
| Dimensions |
850mmx770mmx1624mm |
Introduction
The automatic filter material tester can simulate the actual use environment of the mask or filter material, and test the filtration efficiency and filtration resistance based on the oil mist and salt mist methods required by the standard.
The test parameters meet the requirements of the test methods in NIOSH 42 CFR Part 84 and GB / T 2626 standards.
In addition, the automatic filter tester can also test the permeability of the filter material, the test pore size: 1/1, 1/2, 1/4, 1/8;
Test material: layered mask or filter material;
Test methods: oil mist test and salt mist test;
Test parameters: filtration efficiency, filtration resistance, etc .;
The automatic filter tester can accurately evaluate the filtering performance of masks or filter materials, and provide data basis for the research and development of new filter materials, product quality control, and material performance verification.
Standards
NIOSH 42 CFR Part 84 Respiratory protective device technical requirements;
GB/T 2626 Respiratory protective equipment-self-priming filter type anti-particulate respirator.
Related terms
Filtration efficiency: the percentage of particulate matter removed by the filter element under the specified detection conditions;
Oil mist method detection: use DEHS / PAO / DSP and other oily or equivalent materials as aerosols to detect the filtering performance of masks or filter materials;
Salt spray test: a method for detecting the filtering performance of masks or filter materials with NaCl or equivalent halide as an aerosol;
Testing Principle
Oil mist method:
The dry oil-free compressed air enters the aerosol generator at a certain flow rate to produce aerosols with a certain particle size distribution. After being sieved by a cascade impactor, the particles with a particle size distribution that meets the standard requirements are discharged from the aerosol outlet and enter the test pipeline.It reaches the filter material. Different pressure sensors are installed on both sides of the filter material. During the test, the number of particles upstream and downstream of the filter material is monitored; the entire test process is carried out with a certain flow rate or air volume.
Salt spray method:
The dry oil-free compressed air enters the aerosol generator at a certain flow rate to produce aerosols with a certain particle size distribution. After being sieved by a cascade impactor, the particles with a particle size distribution that meets the standard requirements are discharged from the aerosol outlet and enter the test pipeline.Because the salt mist aerosol is charged with static electricity, the salt mist aerosol needs to be neutralized. And for the salt mist aerosol, it needs to be heated to produce salt particles. The method is: mixing the aerosol that meets the particle size requirements with the heating gas, and then the water in the aerosol is evaporated to produce salt particles.It reaches the filter material. Different pressure sensors are installed on both sides of the filter material. During the test, the number of particles upstream and downstream of the filter material is monitored; the entire test process is carried out with a certain flow rate or air volume.
Packaging & Shipping
Company Information
We,
Dongguan Hongtuo Instrument Co., Ltd, a China based company, are pleased to introduce ourselves as a notable testing equipments and machines manufacturer.Our company was established in the year 2000 with two primarily motto, which includes complete client satisfaction and to reach top-most position in the international market. The exceptional quality of our products like
Gold Tester,Gold Testing Machine,Density Meter,Universal Tensile Testing Machine,Climatic Chamber,Melt Flow Index Tester,Charpy Impact Testing Machine,Tap Density Tester,Abrasion Tester,Ultrasonic Flaw Detector,Surface Roughness Tester and other Laboratory Testing Equipment, etc. is our company's USP.
Certification
Audited Supplier 
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