Small surface indentations entrain larger and more representative sampling than conventional petri-dish smeared with smooth layer adhesive. Filter is assembled from perforated disk and flat backing plate with sticky surface. Due to design-created currents, particulates come in contact with surface for longer time and have greater probability of being trapped. Filter is useful in air-quality monitoring at industrial sites, in mines, and in and around nuclear power plants.


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    Title :

    Improved particulate-sampling filter


    Contributors:

    Published in:

    Publication date :

    1980-09-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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