... 3-1998, JIS K-7126 ; GB/T 19789-2005, Function:To test package oxygen transmission rate. Application :* Filmsrigid films, shrik films ... ≤2mmPressure0.2-0.3Mpa Software interface: Features:1, Automatic test, use friendly,2, High-precision sensors with over-range ... , 4, Versatile functions such as the auto leakage protection function, automatically judges and stops; 5. Double chamber pressure control ...