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Method of steam sterilization using a steam sterilization indicator

  • US 6,149,863 A
  • Filed: 09/10/1999
  • Issued: 11/21/2000
  • Est. Priority Date: 02/19/1997
  • Status: Expired due to Term
First Claim
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1. A method of steam sterilization of an article comprising:

  • exposing to steam both said article and a steam sterilization indicator, said indicator comprising a tetrazolium salt that is reduced to a formazan compound or salt thereof and thereby undergoes a color change as a direct result of exposure to steam sterilization conditions.

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