| 摘要 |
<p>Title: Sterilisation Indicators 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.</p> |
