Requirements for Laboratory Equipment Decontamination
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Any laboratory equipment contaminated or potentially contaminated with biological material, chemicals, or radioisotopes must be decontaminated prior to delivery through Moving and Surplus (University Stores/Warehouse Operations). All equipment must be in a clean, sanitary condition before pickup, even if it was not used with radioactive, chemical, or biological agents. In addition, a "Laboratory Equipment Decontamination Form" must be completed and affixed to the item.
Items requiring decontamination include (but are not limited to):
- Animal cages and equipment
- Biological safety cabinets
- Fume hoods
- Glove boxes
- Storage cabinets
- Water baths
The following items CANNOT be accepted for Surplus (contact Environmental Health & Safety, 774-7398, for guidance on proper disposal of items):
- Capacitors, Transformers
- Gas cylinders, pressurized containers/vessels
- Instruments containing mercury
- Materials containing asbestos, including, but not limited to: autoclaves, laboratory ovens, fire proof file cabinets
- Any equipment containing a radioactive source
- Gas chromatographs
- Germicidal UV lamps
- Scintillation counters
- X-ray equipment
- Any item with a radioactive sticker
- Any refrigerator or freezer that was used to store anything except food and beverage.
Equipment used to process or store radioisotopes
A thorough radiation survey of all accessible surfaces must be performed with an appropriate instrument. If radioactive contamination is detected, the equipment must be cleaned with small amounts of warm detergent water to avoid splash. Blot dry with paper towels. Commercial radiation decontamination solutions containing chelating agents may be helpful. Contact the Radiation Safety Officer at 774-4189 for assistance with decontamination and to ensure contamination has been removed to an acceptable level.
Equipment used to process or store chemicals
Safely remove, drain, or discharge chemicals from the equipment. Collect the material for reuse or for hazardous waste disposal. If applicable, use an inert gas or liquid to purge or rinse out chemical residues. In some cases, rinsate will need to be disposed of as hazardous waste as well. Call Environmental Health & Safety (EHS) at 774-7398 for more specific information about decontamination, or with questions regarding hazardous waste disposal of chemical and/or rinsate.
Contaminated refrigerators, ovens and other equipment with non-permeable surfaces must be decontaminated by scrubbing with warm soapy water.
Equipment used to process or store biological material or animals
Remove biological material from the equipment. Clean the equipment with warm, soapy water and scrub as necessary. Sanitize with a 1:10 bleach solution. After 10 minutes contact time, rinse metal surfaces as bleach is corrosive. For biological safety cabinets, call the Biosafety Officer at 774-3279 to schedule decontamination procedures.
Central Michigan University
Laboratory Equipment Decontamination Form
After cleaning, attach this form to the equipment.
Contact Name: ___________________________
Phone Number: __________________________
Equipment Description: _________________________________________________________________
Manufacturer, Model #, Serial #: __________________________________________________________
CMU Tag#: ______________________________
This equipment is going:
To Surplus: ____ For Repair: ____ To Salvage: _____ To a New Location: ___________________________
____ Has never been used with radioactive materials, chemicals, or biological agents/animals. (NOTE: must still be cleaned with detergent solution.)
____ has been used with the following materials:
____ Chemicals (list chemicals used)__________________________________________________
____ Biological Agents/Animals (list biological agents/animals used)_________________________
____ Radioactive Materials (list radioisotopes used)______________________________________
The above named equipment has been cleaned with: ___________________________________________
(Describe process and agent used which is suitable for deactivating/removing/disinfecting the hazardous materials.)
Printed Name and Title of Person Doing the Cleaning: ________________________________
Printed Name of Department Chair/Director: _______________________________________
Phone Number: _____________________________________________________________
Call Environmental Health & Safety, 774-7398, if you have questions about completing the form.