ISO 2556塑料 在大气压力下薄膜和薄板的透气率的测定
other of known initial volume has the air pumped out until the pressure is practically zero. The quantity of gas which passes through the specimen from one chamber to the other is determined as a function of time by measuring the increase in pressure occuring in the second chamber by means of a manometer.
ISO 2556塑料 在大气压力下薄膜和薄板的透气率的测定 测压法相关标准
ASTM D1434测定塑料薄膜和薄片的透气性的标准测试方法/Standard Test Method for Determining Gas Permeability Characteristics of Pla
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11/05 23:20