... 1.Oxygen transmission instrume test O2 of plastic bottles ,plastic pouches in air or in 100% oxygen 2 testing barrier material, Oxygen ... -7126 ; GB/T 19789-2005, Function:To test package oxygen transmission rate. Application :* Filmsrigid films, shrik films, stretch ... and reliable data;3, Two calibration methods of standard gas calibration and standard film calibration, 4, Versatile functions such ...