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Lab Safety Manual

Environmental Health and Safety
108 Edwards Hall
1810 Kerr Dr.
Kansas State University
Manhattan, KS 66506

785-532-5856
785-532-1981 fax
safety@k-state.edu

Biohazardous/Medical Waste

Biohazardous/Medical wastes and contaminated materials are disposed of by category. There are three categories of waste: Category 1 waste is known, assumed, or suspected of being infectious to humans, plants, or animals and could cause harm if released to the environment, Category 2 waste has the appearance of biohazardous/medical waste, but is not contaminated with regulated materials, Category 3 wastes are contaminated with hazardous chemicals or radioactive material. For more information, see Biohazardous and Sharps Waste Management Manual.

Waste Treatment

  1. All biohazard waste/materials must be collected in red or orange biohazard bags or tubs. These containers must be kept closed.
  2. Pathogenic organisms or contaminated materials must be decontaminated prior to disposing in the trash.
  3. Once a biohazard waste is autoclaved/sterilized, place the red bag into a dark, sealed trash bag prior to placing it into a dumpster. This will prevent others from mistaking it as biohazardous/medical waste.
  4. Materials designated as Category 1 waste must be disposed of as medical waste. This includes sharps contaminated with Category 1 waste (needles, syringes, scalpels, razors, Pasteur pipettes, etc.).
  5. Sharps contaminated with Category 1 waste must be placed in puncture-resistant plastic containers that have the biohazard symbol.
  6. Pathogen-containing waste must also be labeled “Infectious waste-name of the pathogen”,
  7. Do not put Hazardous Waste labels on biohazard/medical waste.

Requesting Medical/Biohazardous Waste Disposal