Steam sterilization with an autoclave effectively inactivates most infectious agents. Seattle-King County regulations apply to autoclaves that treat biohazardous waste. All autoclave operators must be trained on safety information and site-specific procedures. Use the autoclave tools developed by EH&S to keep you safe and compliant:
Laboratories and facilities without access to an autoclave may need to ship waste elsewhere for treatment. In this case, biohazardous waste is collected and shipped by a UW waste contractor for treatment and disposal. EH&S training is required for any personnel who will package and ship waste. Contact Laboratory Services in Health Sciences Academic Services and Facilities to set up an account with a UW waste contractor.
Liquid biohazardous waste cannot be disposed of as solid waste. Treat any free-flowing liquid biohazardous waste prior to disposal in the sewer system by using this protocol:
Add chlorine bleach to equal a final concentration of 10 percent bleach.
Let the solution sit for at least 30 minutes before disposing via the sewer.
If liquid waste volumes equal or exceed 10 liters, contact EH&S at 206.221.7770.
Incineration is required for human pathological waste and nonhuman primate carcasses and body parts. Make disposal arrangements before obtaining human or nonhuman primate pathological samples. Do not dispose of pathological waste with other biohazardous wastes.
For human pathological waste, contact Biological Structure at 206.685.2274.
For nonhuman primate pathological waste, contact the Washington National Primate Research Center (WaNPRC) at 206.543.8686.
Other biological wastes that are shipped off-site for incineration include biosafety level 3 (BSL-3) animal carcasses, tissues and bedding, and trace chemo sharps waste.