ISO 9863的本部分规定了在规定压力和规定载荷板区域或规定点载荷下测定土工合成材料厚度的方法。它定义了确定厚度时的压力或载荷。 试验结果用于识别目的，并用于技术数据表和/或作为其他试验方法的一部分，例如水力性能试验。 该方法适用于所有土工合成材料。交叉引用:ISO 9862ISO 554ISO 25619-1包含以下内容:修订，2020年1月

This part of ISO 9863 specifies a method for the determination of the thickness of geosynthetics at specified pressures and specified load plate areas or under specified point loads. It defines the pressures or the load at which the thickness is determined. The test results are intended for identification purposes and for use in technical data sheets and/or as part of other test methods, e.g. tests of hydraulic properties. The method is applicable to all geosynthetics.Cross References:ISO 9862ISO 554ISO 25619-1Incorporates the following:Amendment, January 2020