Shelf life indication can be effectively measured by how many cubic centimeters of oxygen can permeate through 1 square meter of material over a 24-hour period. A standard PA/PE bag allows on average 100 cubic centimeters, PVDC allows on average over 10, and EVOH on average 1 cubic centimeter.
The ability to measure the shelf life of a product is determined by how much oxygen permeates through a material over a specific period of time. A standard PA/PE bag allows an average of 100 cubic centimeters, PVDC allows more than 10 cubic centimeters on average, and EVOH allows only 1 cubic centimeter on average.