Sampling apparatus for the microbiological analysis of air
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United States of America Patent
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Aug 1, 2000
Grant Date -
N/A
app pub date -
May 12, 1999
filing date -
Jun 10, 1998
priority date (Note) -
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Abstract
This apparatus has a sieve (4) with a wall (22) perforated with a multitude of holes, means (4, 5) for holding a removable receptacle (20) containing a layer of growth media (21) and means (7, 8) for sucking in air at the periphery of the receptacle (20) in order to cause to enter the apparatus (1), through holes in the wall (22), air which strikes the layer of growth media (21), the latter and the wall (22) being shaped so that their separation increases from their periphery towards their center.
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