Gas Transmission Rate (GTR) : the quantity of a given gas passing through a unit of the parallel surfaces of a plastic film in unit time under the conditions of test.
Gas Transmission Rate (GTR) : the quantity of a given gas passing through a unit of the parallel surfaces of a plastic film in unit time under the conditions of test.
译文：气体透过率：在一定的温度下，在单位时间内单位压力差下，稳定透过单位面积试样的气体体积。
3
Oxygen Transmission Rate (O2GTR): The quantity of oxygen gas passing through a unit area of the parallel surfaces of a plastic film per unit time under the conditions of test.