How to determine the effectiveness of sterilization packaging bags?
How to determine the effectiveness of sterilization packaging bags?
December 18, 2025
To determine the effectiveness of sterilization packaging bags, the following four steps of systematic inspection are required:
1. Check the integrity of the packaging
Visual inspection: Confirm that the packaging is undamaged and free of stains, and that the sealing width of the paper plastic bag is ≥ 6mm and there is no air leakage.
Touch inspection: The touch packaging should be dry, without any dampness or water droplets.
Sealing test: Paper plastic bags need to be pressed to check for air leakage, and hard containers need to have intact locking devices.
2. Verify the compatibility of sterilization methods
Material matching: Paper plastic bags need to be compatible with sterilization methods such as ethylene oxide and steam, and pass biocompatibility testing.
Chemical indicators: The color change of the tape outside the package should be uniform (such as turning black after high-temperature sterilization), and the indicator card inside the package should comply with the sterilization method (such as turning yellow after low-temperature sterilization).
3. Verify the usage period
Validity period: Paper plastic bag packaging items usually have a validity period of 180 days and must be used before the marked date.
Environmental requirements: If the storage environment temperature and humidity exceed the standard (such as>22 ℃ or relative humidity>70%), the validity period needs to be shortened.
4. Follow the operating procedures
Packaging requirements: The special tape should be wrapped in parallel or in a cross shape, with appropriate elasticity.
Equipment placement: The distance between the equipment and the sealing area should be ≥ 2.5cm to avoid affecting the sealing.
Prohibited use: Packaging damage, failure to meet chemical indicators, wet packaging, or dropping are all considered invalid.
The above steps can ensure the effectiveness of sterilization packaging bags and ensure medical safety.