Pressure steam sterilizer is a common sterilization and sterilization equipment in the laboratory. It has important applications in many industries. It has the advantages of large heating area, high thermal efficiency, uniform heating, short boiling time of liquid material, and easy control of heating temperature. , However, with the prolongation of the use time and the aging of the autoclave equipment, the effect of killing grapes of the instrument will decrease, which will affect the results of other tests. The effect of the results, it is necessary to test its sterilization effect.

The detection method is as follows:

1. Chemical indicator: The melting point of benzoic acid is 121-123 ° C. After sterilization, it is seen that the benzoic acid powder does not turn into a liquid state, but becomes solid after cooling, indicating that E achieves the purpose of sterilization.

2. Keep a thermometer: This method is mainly to determine whether the sterilization effect is achieved by observing the temperature, specifically whether the temperature reaches the required temperature for sterilization after sterilization.

3. Biological assay method: It is a reliable method in the detection effect of high pressure steam sterilization. Usually, the spores are drip-dyed on paper, aluminum sheets and other carriers, and it is judged whether the sterilization requirements are met according to whether the microorganisms in the indicator die or not.