METHOD FOR DETERMINING THE PERMEATION OF GASES INTO OR OUT OF PLASTIC PACKAGES AND FOR DETERMINATION OF SHELF-LIFE WITH RESPECT TO GAS PERMEATION

摘要

Testing of gas permeability and shelf-life characteristics of plastic packages (16) by determining a quantity of gas permeated through the packages and thereafter determining the permeation rate and calculating the shelf-life based on permeation rate and other characteristics of the package. Preferred embodiments provide determination of shelf-life based on permeation rate of gas out of or into a package. The figure shows a modified version of a permeation measurement system including means (152, 160-170) of avoiding ingress of atmospheric gases.