Dry Heat Sterilization: 1- Red Heat Sterilization (Sterilize inoculation loops and needles and forceps and scissors in redness hot over Bunsen flam) , 2- Flaming Heat sterilization (Sterilize mouth of culture tubes and flasks and glass slides over Bunsen flam as well without redness hot), 3- Incineration Heat Sterilization (Destroy pathological materials until become ash using fire with forced air blower), 4- Hot Air Over Sterilization (sterilize glassware and instruments and powder without water at 160 at 180 degree Celsius in about two hours to destroy oxidative processes of microorganism)
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