... 7700 Oxygen Permeability Tester for Cans and Boxes Made of Plastics, Rubber, Glass, Paper is designed to determine the oxygen transmission ... , glass, paper and other metal materials. i-OXTRA 7700 Oxygen Permeability Tester for Cans and Boxes Made of Plastics, Rubber, Glass ... :±0.1 °C (Standard) Test Principle: i-OXTRA 7700 Oxygen Permeability Tester for Cans and Boxes Made of Plastics, Rubber, Glass ...