Decontaminate all laboratory/analytical equipment used in conjunction with biological, chemical or radiological materials. This applies whether the equipment will be moved or surplused. See this Equipment Clearance.

Laboratory equipment or laboratory surfaces must be cleaned and decontaminated before vacating the space.

Proper decontamination requires the wipe down of all contaminated surfaces with a cleaning agent capable of removing the contaminant.

  • Biological Agents: A solution of 5.25% sodium hypochlorite (household bleach) diluted between 1:10 and 1:100 with water is effective at decontaminating most surfaces which have come in contact with infectious material. Allow contact for at least 20-30 minutes and follow-up with water to remove any bleach residue. If other disinfectants are used, be sure to read the label to ensure the chemical is effective against the biological agent and the appropriate contact time is used. Contact the Biosafety Officer (BSO) to determine if gas decontamination is needed.
  • Chemicals: For assistance in what type of cleaner or cleaning material to use and how to dispose of materials used to clean contaminated surfaces, contact the Hazardous Waste Safety Officer.
  • Radioactive Material: A special decontaminating solution (e.g. Radiacwash, Count-off, Liftaway) is recommended. Wipe the surface with a paper towel to remove the contamination, changing paper towels often. If special solutions are not available, the use of sprays such as Fantastik or Windex may be used. After the equipment has been cleaned, it must be dried before a subsequent survey can be performed. Contact the Radiation Safety Officer to schedule.

Notify Hazardous Waste Safety Officer of any equipment or procedures that may have contributed to hazardous chemical residues remaining on surfaces (e.g., perchloric acid) or any areas that cannot be fully decontaminated (e.g. material potentially containing asbestos).