1. What physical control methods are used to sterilize? What materials require sterilization?
2. What physical control methods disinfect? What types of materials require disinfection but not sterilization?
3. Describe the differences between dry heat and moist heatsterilization.

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Considerations for physical control of microbes Must the object be completely free of microbes? Yes No ls the object affected by heat? Is the object affected by heat? Yes No Yes No Incineration Dry oven UV radiation Pasteurization