Autoclaves are pressure vessels which inject steam into a sealed chamber and eject cold air by gravity fill or by vacuum assistance. The autoclave pushes steam into the vessel at pressure X to ensure that steam reaches temperature Y. For each autoclave, the relationship between X and Y are different depending on many factors.
All autoclaves, should be evaluated for their applicability under the Technical Standards & Safety Act, specifically the Boilers and Pressure Vessels Regulations. If applicable under this regulation, the autoclave is required to be inspected every year by McMaster's insurance provider for this purpose.