Model 8200 Oxygen Permeation Analyzer is designed for those companies that test only packages, such as PET bottles.  It has the same accuracy and ease of operation as the 8001,  but it is an economical choice for PET bottle analysis.  PET bottles are attached to the instrument, and an oxygen-free carrier gas flows through the inside of the bottle picking up the oxygen that permeates through the PET material, enabling simple and precise measurement.