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Environmental sampling articles and methods

  • US 10,018,534 B2
  • Filed: 09/03/2014
  • Issued: 07/10/2018
  • Est. Priority Date: 11/20/2007
  • Status: Active Grant
First Claim
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1. A kit for sampling and enumerating microorganisms, the kit comprising:

  • a sample housing comprisinga bottom member comprising a self-supporting water impervious substrate with upper and lower major surfaces;

    a cover sheet comprising a substrate with upper and lower major surfaces wherein at least part of one major surface of the cover sheet comprises a coating of a cold water soluble powder including at least one gelling agent; and

    a water-impermeable barrier layer attached to the bottom member or the cover sheet, wherein the barrier layer is positioned between the cover sheet and the bottom member;

    wherein the cover sheet is attached to the bottom member and wherein the powder faces the upper major surface of the bottom member.

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