1. Review the following resources and this sheet before using an autoclave and at least annually thereafter.
- Info Sheet: Autoclave Safety
- Hazard Alert: Autoclaving Liquids & Scald Risk
- Medical Waste Management - “On or Off‐Site Research (BSL1 ‐ BSL2) / Teaching Laboratories (BSL1 ‐ BSL2)”
2. Adhere to the following personal protective equipment (PPE) requirements
- Always wear long pants or other clothing covering the legs, and closed-toed shoes.
- Always wear eye/face protection (safety glasses/goggles and/or face shield). Location of PPE: Cupboard marked PPE/Safety behind the sink in the main lab on the right side
- Wear a lab coat or apron with long-sleeved shirt underneath. Location of PPE: Cupboard marked PPE/Safety behind the sink in the main lab on the right side
- Wear heat resistant gloves on top of nitrile gloves when loading and unloading the autoclave. Location of PPE: Cupboard marked PPE/Safety behind the sink in the main lab on the right side
3. Take the following steps in preparing materials for the autoclave.
- Ensure that only permitted material is to be autoclaved.
- Do NOT autoclave non-autoclavable plastic containers/bags, aerosol cans, or unknown contents.
- Do NOT autoclave volatile, toxic, reactive, flammable, combustible, or oxidizing chemicals.
- Prepare and load material to ensure proper steam penetration and venting.
- Bottles/beakers/other containers need to be capped loosely or covered with aluminum foil.
- Autoclavable waste bags need to be loosely closed with about an inch opening and secured with a ring of tape or rubber band.
- Fill containers no more than half full with liquids and bags no more than ¾ with solids to prevent spill and boil over. Label at least one item per run with your lab, name, and phone number.
- Use plastic or metal secondary containers on a cart for transport to the autoclave door.
- Within the autoclave, do NOT use cardboard as secondary containment to hold biohazard bags or as absorbent material inside secondary containers.
4. Carefully load the autoclave. The door and inside surface may be hot!
- Ensure the autoclave is operating properly before commencing.
- Use metal secondary containers no more than 6 inches deep for sterilizing liquids/solids/waste.
- Autoclavable plastic secondary containers are only appropriate for waste and solids that do not fit in metal secondary containers. Do not use non-autoclavable plastic – it may melt and cause damage!
- Check the stability of all items in the secondary container and make sure individual items are not touching.
- Load secondary container into autoclave with items, but do not allow bags to touch the sides/top of the autoclave.
- Close autoclave door securely.
4. Operate the autoclave.
Specific autoclave instructions:
Determine and start the appropriate cycle to use.
Sterilizing Solids
ID:
Temp:
Duration:
Sterilizing Liquids
ID:
Temp:
Duration:
Note: We do not routinely autoclave our hazardous waste!
*Please see Medical Waste Management - “On or Off‐Site Research (BSL1 ‐ BSL2) / Teaching Laboratories (BSL1 ‐ BSL2)” for specific requirements regarding autoclaving waste for 45 min.
- Do not leave until the autoclave has gone past the purge phase to ensure that no steam is escaping.
- If steam escapes through the door, attempt to safely and properly tighten the already closed autoclave door.
- If steam continues to leak or if there are any alarms or run errors displayed, abort the cycle.
- Never attempt to open an autoclave during operation!
- Complete the “Autoclave Log” fully with all required information for every run.
5. Unload the autoclave.
- Verify desired temperature and duration of exposure has been met, and no errors have occurred.
- This can be done in the following manner: Identifying errors on the LCD display
- If an error has occurred, determine if maintenance assistance from E&O is needed. Your items will need to be re-autoclaved so a full cycle can be completed.
- Wait until the chamber pressure gauge reads zero and the autoclave indicates “cycle complete” before opening.
- Open the autoclave door 1 inch to allow steam to escape.
- Wait 10 min for the steam to be released from the autoclave chamber. CAUTION: Contents remain hot!
- Place a cart near the autoclave door.
- Place the secondary tray from the autoclave onto your cart and allow items to cool before transporting them.
TRAINING LOG
Training is to be conducted by: Ryan Boileau, ryan.boileau@duke.edu, 5036790739
In case of any issues with the autoclave, please contact: Ryan Boileau, ryan.boileau@duke.edu, 5036790739
For maintenance issues, contact E&O: (919) 684-3232
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