AUTOCLAVE

Every item used during an Antimicrobial Textile Testing must be sterilized before its use. Some items are purchased already sterilized, and others require performing a sterilization process in advance.

AUTOCLAVING

Autoclaving is a procedure that uses high temperature and pressure to sterilize laboratory items such as solids, liquids, and equipment. Follow these instructions to perform the autoclave process using an autoclave machine:

INSTRUCTIONS
Preparing the items to sterilize

  • Media and liquids
    • Place the media or liquid in a media bottle making sure that it does not exceed half of the container’s volume to avoid possible spills during the autoclave process.
    • Loosely close the lid and put autoclave tape on the lid.
  • Hazardous waste
    • Place the waste in an autoclavable bag and close it at the top with autoclave tape
  • Instruments
    • Place the item in a sterilization pouch
  • Pipette tips
    • Place the tips in a rack, and close the lid with autoclave tape

Loading and setting up the autoclave

  • Check the water level on the autoclave machine, adding deionized water if necessary.
  • Place the items to sterilize in a metallic container to avoid spills.
  • Load the metallic container onto the autoclave machine and, if necessary, load a biological indicator
  • Close the autoclave door and secure rotating the handle until the door closed light turns on
  • Select the desired program, temperature, and time.
  • Press Start

After the autoclave process is complete

  • Wait until the screen indicates that the cycle is complete in order to open the door.
  • Remove the items from the autoclave, carefully handling them with gloves since they will be at elevated temperature.
  • Use the media and instruments as needed, and properly discard the autoclaved trash.

SPECIAL CONSIDERATIONS

  • Before loading any item on the autoclave machine, make sure that the item can be autoclaved.
  • Once the cycle is complete, check that the autoclave process was completed successfully by looking at the autoclave tape and biological indicator marks. Also, look at the possible Fail light indicator on the autoclave machine.