The sterilization time required for autoclaving should be calculated from heating.

It is wrong to say that the sterilization time required for autoclaving should be counted from heating. The time of high pressure steam sterilization should be calculated from the time when the sterilization pot reaches the required temperature until the sterilization is completed.

Infiltration time refers to the time from the sterilization temperature in the pot to the temperature of the Z-hard-to-reach part in the pot.

The maintenance time, that is, the time required to kill microorganisms, is generally expressed by the time required to kill thermophilic lipase spores.

Safe time to ensure the extra time required for sterilization. Generally, it is half of the thermal death time, and the length depends on the disinfection items. It does not take safe time to sterilize metal equipment that is easy to conduct heat. During the sterilization time, pay attention to the pressure gauge and adjust the air intake in time to keep the pressure at a constant level until the sterilization time. In the process of sterilization, if the pressure and temperature drop, the temperature should be raised again and the time should be re-timed.