Sterilisation indicators

Details Sterilisation indicators Sterilisation indicators

G - Physics

01

N

150/16.2

G01N 31/22 (2006.01)

Patent

CA 1144849

Title: Sterilisation Indicators ABSTRACT The present invention relates to an indicator which is used for indicating the completion of a sterilisation process in which an article to be sterilised is exposed to formaldehyde vapour either dry or mixed with steam. The indicator comprises a mixture of preferably two amino acids and a pH indicator impregnated in a paper carrier. The amino acids and pH indicator are such that the change point G_ the pH indicator lies within the range of the change of pH value of the amino acid mix which occurs on exposure of the amino acids to formaldehyde vapour.

370442

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