Autoclaves operate by creating steam under very high pressure; the steam
then penetrates the objects inside the autoclave and the moist heat
kills microorganisms by protein denaturation. The potential for injury
while working with an autoclave includes burns and scalding, bodily
injury if the autoclave explodes and exposure to dangerous organisms due
to insufficient decontamination of biologically hazardous material. The
single most helpful behavior you can practice when working with an
autoclave is paying attention to details.
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Wear a buttoned lab coat, eye protection and closed toe
shoes when working with an autoclave. Check the log for the autoclave
and note that it is functioning properly before you use it. All
maintenance checks and repairs should have been recorded and logs kept
for five years.
Confirm that all items going into the autoclave meet the
safety requirements for autoclaves and that they don't include sharps,
radioactive or red bag wastes or volatile chemicals. Use the correct
packaging for items to be autoclaved such as clear or orange autoclave
bags. Place the filled bags in appropriate secondary containers.
Avoid overfilling the autoclave or containers in the
autoclave. Material should not touch the walls or ceiling of the
autoclave. Don't mix clean and waste materials in the same load. Add
water carefully to the autoclave bags, making sure the bags will vent
properly. All packaging should allow steam penetration and escape.
Loosen lids on jars.
Secure the autoclave door correctly. Select the settings
appropriate for the materials you've loaded, and record in the user log.
Run the autoclave.
Wait until the cycle is finished and the pressure reading is
zero before opening the door to vent the steam. Let items cool before
removing them from the autoclave. Wear heat-resistant protective gloves
along with your other PPE when removing autoclaved items from a hot
machine.
Tips & Warnings
- Place autoclave tape loosely over the loose caps of jars. The tape will change colors to indicate a complete decontamination. The loose caps allow steam to escape and prevent the jars from exploding.
- Read the owner's manual for your particular autoclave and familiarize yourself with its specific protocols.
- Follow instructions exactly to prevent dangerous explosions and injury.
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