Seterila Procesin Tecnitian

Chemical Indicators
These create a chemical reaction in response to specified conditions The reaction is usually a colour change They are designed to react to:
Steam Plasma Gas (e.g. ETO) Peraceticacid

Chemical Indicators
They can be placed on the outside or the inside of a package Chemical indicators show that an item as been exposed to a sterilization cycle Also demonstrate that certainconditions were met Does not necessarily mean that the item is sterile

Chemical Indicators
Just because it has changed colour does not mean that the item that was sterilized was cleanSterilization depends on proper preparation plus proper conditions Chemical indicators can give some assurance that sterilization conditions have been reached Can not give conclusive proof that items aresterile

Chemical Indicators
External Chemical Indicators: Autoclave tape is the most common For muslin or non-woven fabric wraps, autoclave tape is placed on the outside of a package and it changescolour during sterilization The change in colour confirms that the item was exposed to a sterilization cycle

Chemical Indicators
The tape changes colour on exposure to heat and moisture It does notindicate what happened inside the package

Chemical Indicators
This is autoclave tape When it is exposed to heat and moisture, black diagonal lines will appear on tape This tape is used for steamsterilization

Chemical Indicators
This tape is used for ETO sterilization The yellow lines will change to red when the tape is exposed to ETO gases

Chemical Indicators
Internal ChemicalIndicators: These are placed inside a package prior to wrapping Being enclosed within a package gives better indication of what actually happened to the item being sterilized It tells whether or notconditions for sterilization were achieved inside the package

Chemical Indicators
These can be paper strips, cards or tape An internal indicator is enclosed in each package during assembly It is...