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    Vapor Diffusion Samplers are an inexpensive way to collect VOC concentrations from soil or boreholes. A 40 ml glass vial is enclosed in a polyethylene membrane. VOC respond to the concentration gradient when placed in a VOC environment causing the VOC molecules to enter the vial through the membrane until th concntration inside the vial equals the concentration outside.

    When recovered the lid is screwed on the vial while it is inside the membrane and then the membrane can be removed.

    Item # Description/Size Availability Qty Break Price Quantity
    GSD605
    Passive Vapor Diffusion Sampler 40ml
    In Stock 1 $6.00