ASTM F1927
ASTM F1927 – Standard Test Method for Determination of Oxygen Gas Transmission Rate, Permeability and Permeance at Controlled Relative Humidity Through Barrier Materials Using a Coulometric Detector Description: Significance and Use 5.1 O2GTR at a given temperature and %RH is an important determinant of the packaging protection afforded by barrier materials. It is not, however the …