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permeation tube Applications

  • Permeation Tubes for Laboratory

    Permeation tubes emits the compound with a constant rate and constant temperature, permeation rate have a exponential dependence from the temperature: it increases around 7% for a increase of 1°C. To generate gas standard with accuracy is necessary a thermostation with accuracy ±0,1°C. The tube (or more tubes) are placed into “U” glass older and immersed in thermostatic bath, the diluent air or nitrogen is pre-heated on bed of glass spheres.

    By Fine Metrology S.r.l. based in Spadafora (ME), ITALY.

  • Gas analysis & monitoring systems for gas generation

    The gas generators for calibration based on the use of “Method of Permeation Tubes.”. The permeation tubes are sealed capsules containing a small amount of the component that is in contact with a permeable membrane stable. The permeation through the membrane produces a vapor of the compound of the component of small quantity, very stable as a stream in time. This permeate stream by mixing with a dilution gas controlled and precise (for example nitrogen) creates a mixture in track at the desired...

    By ETG Risorse e Tecnologia S.r.l. based in Montiglio, ITALY.

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    vigi e-nose analyzers for for tracking VOCs.

    The vigi e-nose is an analyzer able to track VOCs, Sulfur compounds and other molecules such as ammonia for example. It allows to provide a rich global fingerprint to correlate with human sensory evaluation as dynamic olfactometry as example. It is possible to train the vigi e-nose with human sensory samples to study correlation with ASTM 679-E04 or EN 13725. As electronic nose, it provides chemical and olfactive fingerprint. The main differences are that vigi e-nose offers with single instrument : Speciation...

    By Chromatotec Group based in Val de Virvée, FRANCE.

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    Refineries and hazardous areas gas analyzers for industrial air monitoring

    Chromatotec can propose for hazardous areas (for instance refineries) specific boxes for our analysers : category 1 IIc T4 for example.

    By Chromatotec Group based in Val de Virvée, FRANCE.

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    Gas analyzers for odor: bad smell

    The aim: analysis of H2S ppb and mercaptans with the TRSMEDOR because of the bad smell of exhausts.

    By Chromatotec Group based in Val de Virvée, FRANCE.

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    Waste water treatment plants and landfill gas analyzers for industrial air monitoring

    The aim : analyze ppb or ppb of H2S and mercaptans with the TRSMEDOR because of bad smell of exhausts from waste water treatment plants and also the toxicity of H2S and Me-SH.

    By Chromatotec Group based in Val de Virvée, FRANCE.

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    Gas analyzers for pipeline integrity

    H2S/Total Sulfur analyzers for Natural Gas pipeline integrity monitoring. During the extraction and processing of raw Natural Gas, midstream companies are required to track the level of Hydrogen sulfide (H2S) and Total Sulfur (TS). Accurate analysis of H2S in Natural Gas is of high importance to reach natural gas standard and to avoid equipment corrosion, as well as the decrease of heating values.

    By Chromatotec Group based in Val de Virvée, FRANCE.

  • Measurement solution for accurate continuous formaldehyde measurement formaldehyde in emissions and ambient air applications

    Formaldehyde (HCHO) is the simplest aldehyde species and is present, or generated by, many sources (both natural and industrial). It is classed as a substance that is toxic and harmful to human health.

    By Protea Limited based in Middlewich, UNITED KINGDOM.

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