The blister packaging used for some high-end Class III medical devices is used as hard blister sealing materials, such as PETG, PVC, PS, PP, PET blister box and other materials. It is mostly used in medical sterilization. One side is high-density polyvinyl alcohol, and the other side is dialysis paper, which is used for packaging medical devices for sterilization. The advantage of dialysis paper is that it can enter and leave steam, but it is impermeable. Use a sealing machine to seal it.
Specification

Relevant standards
[1] GB/T 19633-2005 Packaging of terminally sterilized medical devices
[2] GB/T 5402-2003 Paper and Board-Determination of Air Permeability (Medium Range) Geller Method
[3] ISO/DIS 22611 Test method for aerosol penetration of anti-microbial contamination by clothing
[4] EN868 Sterilization packaging of medical devices
