Indicator sheet for an autoclave test pack
AssigneeThe Victoria University of Manchester
InventorRoger Hambleton
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Abstract
An indicator sheet for an autoclave test pack wherein a pair of porous masses (10) are held in close superimposed relationship by means of a clamp (13) with the indicator sheet (12) sandwiched between them. The indicator sheet (12) has printed thereon a pattern of markings (14) formed from one or more substances which are adapted under steam sterilizing conditions to provide an indication of the presence of air and/or excessive moisture such that each is evident and individually identifiable.
Claims9
An indicator sheet for an autoclave test pack, the sheet bearing on at least one of its faces, a pattern of indicator markings which, under steam sterilizing conditions, undergo a visual change to indicate the presence of air or of excessive moisture, or both, the markings being formed from at least two substances which provide different indications, one being sensitive to air and the other to excessive moisture.
Dependencies are inferred from the claim text.