Sample Filtration | Environmental XPRT
Articles & Whitepapers
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Inside the Particulate Monitor – Optical Methods
At least two different optical techniques can be applied to measure the concentration of particulates – light absorption and light scattering. Light absorption is frequently used in high-concentration industrial processes, but it has some applications also in ambient air, for example to determine visibility at airports. Light scattering is utilized both in industrial and ambient ...
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Inside the Particulate Monitor – Filter Samplers
Some time ago, OPSIS published descriptions on how some well-established types of gas analysers work, namely those based on spectrometers, interferometers, and tuneable diode lasers. They all utilize ...
News
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Alfa Chemistry Introduces Basic Filtration Products to Support Researchers in Dealing with Filtration Challenges
Fully aware of the vital role of sample preparation in researchers’ daily work, Alfa Chemistry aims to solve the toughest filtration, purification and separation challenges by introducing a comprehensive range of basic filtration products, ...
Equipment & Solutions
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Showcase
Air Filter Holder System
The NILU air sampling filter holder system is designed for sampling of particles and gaseous compounds on impregnated filters in air pollution measurements. We have both in-line filter holder and open-face filter holder. For both in-line and open-face air filter holder system it is possible to build several successive stages of filters for air sampling for the purpose of air pollution ...
