... Test all the packaging's permeability with high precision, reliable, stable, Oxygen Permability rate Tester – Coulometry theory Method Standards ... ; GB/T 19789-2005, Function:To test package oxygen transmission rate. Application :* Filmsrigid films, shrik films, stretch ... Features:1, Automatic test, use friendly,2, High-precision sensors with over-range protection, continuous data collection, accurate ...