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PRESSURE ACTIVATED SAMPLING SYSTEM

  • US 20070062256A1
  • Filed: 03/24/2005
  • Published: 03/22/2007
  • Est. Priority Date: 12/11/2001
  • Status: Active Grant
First Claim
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1. A method for screening an item for the presence of contaminants, the method comprising:

  • subjecting an item to a pressure substantially in excess of atmospheric pressure conditions;

    rapidly decompressing the item to the atmospheric pressure;

    collecting a sample of a substance comprising at least one of vapors and particles removed from the item by the rapid decompression;

    testing the sample to determine whether a predetermined contaminant is present in the sample.

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