标准摘要
[中文适用范围]： 本文件规定了测定单层土工布或土工布相关产品垂直于平面的透水特性的两种试验方法： a) 恒水头法； b) 落头法。 [外文原描述]： This document specifies two test methods for determining the water permeability characteristics of a single layer of geotextile or geotextile-related product normal to the plane: a) the constant head method; and b) the falling head method.
英文名称Geotextiles and geotextile-related products — Determination of water permeability characteristics normal to the plane, without load