Holding time for Hot air oven with a temperature of 1600C

<img class="fr-dib" style="width: 300px;" src=" /> Hot air oven This is most widely used method of sterilization by dry heat. A holding period of 160degC for two hours is used to sterilise glassware, forceps, scissors, scalpels, all-glass syringes, swabs and some pharmaceutical products such as liquid paraffin, dusting powder, fats and grease. Hot air is a bad conductor of heat and its penetrating power is low The Owen is usually heated by electricity, with heating elements in the wall of the chamber. It must be fitted with a fan to ensure even distribution of air and elimination of air pockets. It should not be overloaded Ref : Ananthanarayana textbook of Microbiology 9th edition Pgno : 30