Plastic film and sheet gas permeability test method using differential pressure method is described in this standard. It includes the requirements of the test device, operation steps and data calculation method. This method can accurately evaluate the transmittance of film and sheet in different gas environments, which is important for the airtightness evaluation of Encasement materials and protective films to ensure the effectiveness and safety of the product in practical applications.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Abolish | ||
|---|---|---|---|
| CCS | ICS | ||
| Release Date | Implementation Date | ||