Good Quality Electrical Test – HY-CO2 Medical 3d Face Mask PFE Particulate Filtration Efficiency Tester – Hongjin
Good Quality Electrical Test – HY-CO2 Medical 3d Face Mask PFE Particulate Filtration Efficiency Tester – Hongjin Detail:
Product Description
The mask filter performance tester cleans the compressed air and sprays the pre-prepared NaCl solution or DEHS / PAO and other similar solutions from the aerosol generator. After passing through a classifier (inertial principle), the large particles that are not needed are collected into the collection bottle inside, aerosol particles that meet the requirements are ejected from the nozzle of the aerosol generator into the test system.
1. The aerosol emitted by the aerosol generator needs to undergo two treatments before reaching the test filter material;
a. Produce aerosol salt particles by mixing with heated gas (for salt spray). b. Neutralize the static electricity carried by the aerosol through an electrostatic neutralizer. This action is to reduce the loss of particles and the influence of static electricity on the test results.
2. After being processed by the above two procedures, the aerosol reaches the surface of the test filter material at a certain flow rate (flow rate) and begins the test procedure. For the filtration efficiency test, the test time is very short, and it takes only a few seconds to complete the test of one filter material. For the loading experiment test, the loading experiment is relatively long. The aerosol quantity concentration or mass concentration in the upstream and downstream of the filter material is measured by a particle counter or a laser scattering photometer, and the filtration efficiency is calculated. Meanwhile, the pressure drop on both sides of the filter material is monitored by a pressure difference sensor. The mask filter performance tester cleans the compressed air and sprays the pre-prepared NaCl solution or DEHS / PAO and other similar solutions from the aerosol generator. After passing through a classifier (inertial principle), the large particles that are not needed are collected into the collection bottle inside, aerosol particles that meet the requirements are ejected from the nozzle of the aerosol generator into the test system.
1. The aerosol emitted by the aerosol generator needs to undergo two treatments before reaching the test filter material;
a. Produce aerosol salt particles by mixing with heated gas (for salt spray). b. Neutralize the static electricity carried by the aerosol through an electrostatic neutralizer. This action is to reduce the loss of particles and the influence of static electricity on the test results.
2. After being processed by the above two procedures, the aerosol reaches the surface of the test filter material at a certain flow rate (flow rate) and begins the test procedure. For the filtration efficiency test, the test time is very short, and it takes only a few seconds to complete the test of one filter material. For the loading experiment test, the loading experiment is relatively long. The aerosol quantity concentration or mass concentration in the upstream and downstream of the filter material is measured by a particle counter or a laser scattering photometer, and the filtration efficiency is calculated. Meanwhile, the pressure drop on both sides of the filter material is monitored by a pressure difference sensor.
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Cooperation
Our primary goal is to offer our clients a serious and responsible business relationship, providing personalized attention to all of them for Good Quality Electrical Test – HY-CO2 Medical 3d Face Mask PFE Particulate Filtration Efficiency Tester – Hongjin , The product will supply to all over the world, such as: Seychelles , Philadelphia , Romania , Our company has already had a lot of top factories and professional technology teams in China, offering the best products, techniques and services to worldwide customers. Honesty is our principle, professional operation is our work, service is our goal, and customers' satisfaction is our future!
By Leona from Iran - 2017.09.30 16:36
Reasonable price, good attitude of consultation, finally we achieve a win-win situation,a happy cooperation!
By Rosalind from Ghana - 2018.11.28 16:25