1.1 该试验方法用于确定水和悬浮固体通过用于容纳高含水量泥浆（如疏浚材料）的土工合成透水封闭袋的流速。 1.2 通过土工布袋的水和沉积物的结果显示为每一时间段的水升数，以及悬浮固体总量的百分比，单位为毫克/升或百万分之一。 1.3 流速是一定量的固体和水在特定时间段内通过袋子的平均速率。 1.4 该试验方法需要几件指定的设备，如集成式水采样器、分析天平、土工布袋、透明PVC管、测试框架和清洁容器，以从拟建疏浚区域或泥浆源收集倾析水和高含水量材料的代表性样品。 1.5 以国际单位制或英寸磅单位表示的数值应单独视为标准值。每个系统中所述的值不一定完全相等；因此，为了确保符合标准，每个系统应独立使用，两个系统的值不得合并。 1.6 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 5.1 该试验方法可用于辅助设计含有细粒度高含水量泥浆（如疏浚材料）的土工布容器系统，以满足特殊环境或操作要求。该试验通常用于向监管机构证明土工布脱水的有效性，以确定通过土工布的疏浚物沉积物的数量以及特定高含水量材料的流速。 5.2 设计者可以使用该测试方法来评估可能通过土工布容器进入环境的细粒疏浚物沉积物的数量。 5.3 该试验方法旨在评估特定材料，因为结果将取决于评估的特定高含水量泥浆和土工布，以及土工布容器在水下或水上的位置。 建议用户或设计代表进行测试，因为土工布制造商通常不具备处理或测试细粒泥浆的能力。 5.4 该试验方法提供了一种在各种条件下评估具有不同疏浚材料或高含水量材料的土工织物容器的方法。重复此测试的次数取决于用户和测试条件。 5.5 该测试方法可能无法模拟现场条件，用户应谨慎评估如何应用结果。

1.1 This test method is used to determine the flow rate of water and suspended solids through a geosynthetic permeable closed bag used to contain high water content slurry such as dredged material. 1.2 The results for the water and sediment that pass through the geotextile bag are shown as liters of water per time period, and the percent total suspended solids in milligrams per liter or parts per million. 1.3 The flow rate is the average rate of passage of a quantity of solids and water through the bag over a specific time period. 1.4 This test method requires several pieces of specified equipment such as an integrated water sampler, analytical balance, geotextile bag, stand clear PVC pipes, testing frame, and clean containers to collect the decant water and a representative sample of high water content material from the proposed dredge area or slurry source. 1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This test method may be used as an aid to design geotextile container systems that contain fine-grained, high water content slurries such as dredged materials to meet special environmental or operational requirements. This test is often used to demonstrate the efficacy of geotextile dewatering to regulatory agencies in determining the amount of dredged material sediment passing through a geotextile and the flow rate for specific high water content materials. 5.2 The designer can use this test method to assess the quantity of fine-grained dredged material sediment that may pass through the geotextile container into the environment. 5.3 This test method is intended for evaluation of a specific material, as the results will depend on the specific high water content slurry and geotextile evaluated and the location of the geotextile container below or above water. It is recommended that the user or a design representative perform the test because geotextile manufacturers are not typically equipped to handle or test fine-grained slurries. 5.4 This test method provides a means of evaluating geotextile containers with different dredged materials or high water content materials under various conditions. The number of times this test is repeated depends on the users and the test conditions. 5.5 This test method may not simulate site conditions and the user is cautioned to carefully evaluate how the results are applied.