分析比较几种检测标准取值的依据，提出检测结果取值的方案，为国家测试标准GB/T 15789-1995《土工布透水性测定方法》的修订提供依据。
The scheme of drawing figures from test results was pointed out by analyzing on basis of drawing figures, for providing the basis on revising for national test standard GB/T 15789-1995 .
高压透气度测试仪经检验合格产品，用于测量低透水性材料的孔隙度、透气度和气阻。
High Pressure Densometers are the accepted standard for measuring the porosity, air-permeability or air-resistance of materials having low permeability.
接着，测试了厚度及透水性都满足要求的试样的轧光前、后的拉伸断裂性能。
The property testing of the samples before and after finishing shows that calendaring finishing can lower the thickness and water permeability rate of the samples significantly.
接着，测试了厚度及透水性都满足要求的试样的轧光前、后的拉伸断裂性能。
The property testing of the samples before and after finishing shows that calendaring finishing can lower the thickness and water permeability rate of the samples significantly.
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