Under the condition of constant temperature and constant humidity, the water vapor penetration rate of the separate coatings film is tested by the wet cup method that is simple and practical.

在恒温恒湿条件下，湿杯法检测涂料游离涂膜的透汽性，从而建立了一种简捷实用的水蒸气透过率检测方法。

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The research shows that the carbon absorption rate can be up to 90% approximately by using the pretreated carbon powder and precast block penetration method.

研究表明，经过预处理的碳粉，采用预制块压入法可使碳的吸收率稳定在90%左右。

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In this paper, it is described the principle of penetration rate measured by dynamic method, experiment set-up and the measured result, the gas mass spectrometer was taken as indicator.

文中叙述了以气体分析质谱计作指示器，动态法测量渗透率的原理，实验装置与测量结果。

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