Air sampling apparatus

Details Air sampling apparatus Air sampling apparatus

G - Physics

01

N

73/104

G01N 1/22 (2006.01)

Patent

CA 1164683

IMPROVED SAMPLING APPARATUS Abstract of the Disclosure An improved apparatus for collecting atmospheric samples, particularly air samples, comprises a sealed col- lapsible receptacle which includes a hollow body having a base, top and side walls. At least the side walls are constructed of a flexible material. A venting mechanism introduces the atmosphere surrounding the apparatus into the receptacle at a controlled rate. The receptacle in- cludes means for progressively expanding after being com- pressed. This progressive expansion creates a vacuum with- in the receptacle, thereby aspirating a measured volume of atmosphere per unit of time through the venting mecha- nism. Further provided are means for removing a desired quantity or sample of the retained atmosphere from the receptacle, as required.

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