The principle of steam sterilization indicator tape involves the following key points:

• Steam sterilization indicator tape is a tool used to verify the effective operation of steam sterilizers.
• The indicator tape uses a special chemical that changes color under high temperature and pressure.
• During the process, factors such as high temperature, high pressure, and humidity result in a visible color change.
• Expected color changes indicate that the steam sterilizer is working properly to ensure items are thoroughly sterilized.
• Tapes are usually placed inside the sterilizer with the items to ensure the overall sterilization effect.
• After processing, the color change can be observed to determine if sterilization meets the required standards.