25μm polyester film oxygen permeability reference material
National Certified Reference Material
This reference material is polyester (PET) film, whose thickness is 25μm. It can be applied to food, drug and electro-mechanical industries and so on. It is used to calibrate the oxygen permeability analyzers, which adopt Coulometric Sensor Method, of packaging materials’ oxygen barrier property; and to evaluate the testing process of oxygen permeability analysis.