GB/T 19789-2021 "Encasement materials Plastic film and sheet oxygen permeability test coulometer detection method", standardizes the use of coulometer to detect Plastic film and sheet oxygen permeability test method, clarifies the test principle, equipment, sample prepative, operation steps and result calculation. This standard provides a unified specification for accurately determining the oxygen barrier performance of Encasement materials, helps to evaluate the freshness and quality of products, and provides a technical basis for the research and development, production and quality control of Encasement materials.
| Status | Active |
|---|---|
| CCS | A83 | ICS | 55.040 |
| Release Date | 2021-10-11 00:00:00 | Implementation Date | 2022-05-01 00:00:00 |