... ,plastic pouches in air or in 100% oxygen 2 testing barrier material, Oxygen Permability rate Tester – Coulometry theory Method ... and nylon*Packagespaper, plastics, rubber, paper, paper-plastic composite, glass, and metal packages, eg: bottles, containers, Techinical Parameter itemY201DY204DTest range0 ... M2/day (with large the test chamber, the max testing range can reach 260000cm3/m2/day, 0.01~82 ...