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FAQ - Instrument Processing - 2015
 FAQ  - Instrument Processing - 2015



I have a question regarding our autoclave settings. We have a pouches and a packs setting on our autoclaves....the pouches setting takes the temp to 270 degrees for 5 minutes, while the packs goes to 250 degrees for 30 minutes. There is also the capability to program settings in.

We have been running our autoclaves on pouches for a long time, and have never failed a spore test in our autoclave history.

Do you have guidelines on what temp and time settings our autoclaves should operate on? 

Time and temperature parameters for gravity –displacement steam sterilization cycles can vary. As ANSI/AAMI ST79 states:

The sterilizer manufacturer’s written IFU [Instructions for Use] for cycle parameters should be followed. Programmed cycle selections should be used. Any differences between the programmed cycle parameters and the cycle parameters recommended by the medical device manufacturer should be investigated and resolved before the items are sterilized…1


Sterilizers vary in design and performance characteristics, so cycle parameters should always be verified against the sterilizer manufacturer’s IFU [Instructions for Use] for the specific sterilizer and load configuration being used. 1

Ask OSAP recommends that you consult with the manufacturer’s Instructions for Use (IFU) for your autoclave unit. The IFU should be available in the product manual. Any further questions should be placed directly to the autoclave manufacturer. The manufacturer should have a customer service/technical support line to assist in answering questions about the operation of your autoclave.


(1)    Association for the Advancement of Medical Instrumentation. American National Standard - ANSI/AAMI ST79:2010. AAMI; 2013. Pages 81-82.




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