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air filter test Applications

  • Aerosol and particle technology for filter testing industry

    Nearly 100 test rigs for the quality assurance and the development of filters are being used worldwide with great success.

    By Palas GmbH based in Karlsruhe, GERMANY.

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    Air quality monitoring

    To estimate the effects of aerosols on health and climate, it is essential to know their chemical composition. Sampling is done using two different types of aerosol collector. The first type are filter collectors that are based on the deposition of suspended particles on surfaces; the second type are powerful aerosol collectors.

    By Metrohm AG based in Herisau, SWITZERLAND.

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    Laboratory Weighing - Filter Weighing

    Traffic means mobility and air emissions. Thanks to economical advantages, diesel engine becomes more and more popular, but particle emission is strictly restricted by regulations. Determining the weight of particulate matter (PM) is a key task in the automotive industry and one which is likely to become even more important as emissions standards become stricter. To allow fast and easy measurement of particulate matter at any time, METTLER TOLEDO has developed new filter weighing solutions.

    By Mettler - Toledo Int. Inc based in Greifensee, SWITZERLAND.

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    Monitoring solutions for the dust collectors

    Most industrial processes have dust collectors of some form or other, the most popular being filter bag houses. Very few of these are covered by regulation other than to have a broken bag detector to prevent nuisance dusts escaping and creating a local nuisance. The CODEL StakGard is a low cost Tribo-electric monitor that directly measures mass particulate concentration by sensing the
    frictional charge created when particles collide with a conductor. The advanced electronics of the StakGard detect this signal and present it to the operator via a unique modulating LED display.

    By Codel International Ltd based in Bakewell, UNITED KINGDOM.

  • Air monitoring for laboratories

    Many of the air quality analyses can be performed with standard laboratory consumables, such as traditional filter papers. However, some analyses require materials with specific features, for example filters with low metal levels.

    Common air monitoring applications include:

    • Air quality testing of ambient environment and emissions. Includes particulate monitoring methods such as PM2.5 and PM10, and chemical analysis such as heavy metals determination.
    • Asbestos sampling and analysis

    By GE Healthcare UK Limited based in Little Chalfont, UNITED KINGDOM.

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    Ambient air quality monitoring solutions for PM2.5/PM10 particulate monitoring

    OPSIS provides real-time, flexible monitoring of particulate matter in the ambient air. Particulate matter monitoring with OPSIS, is a cost-effective solution, is ideally suited for use in modern monitoring stations. It can be remote controlled and includes automatic calibration, features that frees time. The SM200 meets the new regulation for automatic monitoring of PM10 and PM2.5. It also meets the new regulation for particulate matter sampling on filter membranes for further analysis of cadmium, nickel, PAH and other substances.

    By Opsis AB based in Furulund, SWEDEN.

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    Waste water treatment plants Personnel Safety & H2S filter management

    Context & Challenges Globally, the wastewater treatment is the first public health issue. Urban development leads to urbanization near waste water treatment plant and extension of sewerage network. These aspects induce to an augmentation of sulfur compounds (H2S, mercaptans and sulfides) which are very corrosive, odorant and toxic. To monitor this compounds online CHROMATOTEC® offers high meteorological solutions. As a result of the confinement of the waste water stations, toxic components such as H2S and Methylmercaptan increased. Safety of employees on such working sites has therefore become of major problem. To fight this hazardous pollution, air filtering systems have been installed. For the station managers, personal safety coupled with the need for constant air quality control and filter change has been a heavy task.

    By Chromatotec Group based in Val de Virvée, FRANCE.

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    Air monitoring for environmental control agencies

    Urban air pollution is a major environmental problem in the developing countries of the world. That`s why to monitor the air quality becomes fundamental to define the air pollution level and take important measures to improve the air quality.

    Ahlstrom offers a high performance filter media for Air Quality Monitoring. A filter media made of extremely pure micro-quartz fibers, appropriate for emission control at high temperatures and wherever absolute purity of the filter medium is required.

    By Ahlstrom-Munksjö based in Helsinki, FINLAND.

  • Dust monitoring and Sand Storm Monitoring

    The frequency and intensity of dust and sand storms in many parts of the world are steadily increasing due to droughts and climate change. The severity of such storms is anticipated to increase over the coming years. These dust storms may last hours or days and cause huge damage and imposed a heavy toll on society with its physical effects, such as visibility reduction, heavy winds, red sky, hailstone and severe lightning. Such Dust storms, have a negative impact on human health, and industrial products and activities. They reduce visibility, layer on skin and cloths, infiltrate buildings and find their way into food and drinking water leaving a permanent sandy feeling in your mouth. Traditional dust monitoring instruments whether they be purely filter based gravimetric samplers or continuous monitors utilising Tapered Element Oscillating Microbalance (TEOM) or Beta Attenuation (BAM) simply are unable to cope with the high dust loads created by these storms. The filters on these instruments are quickly clogged and no further measurements are possible until a service technician visits to replace filters and filter tapes. In dust storm events this is impossible. Therefore, over the past few years a need for alternate technology which are non filter based, can cope with extremely high dust loads, require minimal maintenance and can operate off solar power has been employed in regions such as the Gobi Desert of China for the continuous monitoring of dust storm events. These instruments have demonstrated that an instrument can measure dust storm events with maintenance performed only once every 12 months. That it is possible to communicate remotely and that these systems can not only provide an early warning for dust events but have the accuracy and sensitivity to be an extremely useful tool in gauging hourly changes of visibility. Infact such instruments have been utilised by a number of EPAs around the world, including all Australian EPAs for the purpose of measuring ambient visibility as well as providing an accurate indication of rising dust events.

    By Ecotech Pty Ltd based in Knoxfield, AUSTRALIA.

  • XRF analysis for lead paint

    Niton analysers facilitate direct surface testing for lead paint, testing for lead in dust wipes from surfaces, testing the lead content of soil in the surrounding area (containment) and the testing of lead content in filters from respirators or volume air samplers for worker/public protection.

    By Niton UK Limited based in Woodmancott, Winchester, UNITED KINGDOM.

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