1.1 本实践描述了土工合成材料（例如，用于垃圾填埋场衬垫的土工膜）浸没试验的途径和方法。 1.2 本规范没有规定对土工合成材料样品进行现场浸泡试验的定义。本实践不涉及土工合成材料对其浸入的液体的阻力的测定。本规范的使用者应参考适当的标准指南，以评估耐化学性，并确定对中列出的每种土工合成材料组件进行的测试 2.1 . 附注1: EPA方法9090过去曾用于研究土工膜与渗滤液的相容性。 1.3 以英寸-磅单位表示的值应被视为标准值。括号中给出的值是对SI单位的数学转换，仅供参考，不被视为标准。 1.4 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。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法规限制的适用性。 1.5 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《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ======意义和用途====== 4.1 本实践提供了一种方法和方法，用于对用于建造用于容纳液体和固体的水库、池塘、蓄水池或垃圾填埋场的衬垫的土工合成材料进行现场浸泡试验。本惯例应按照惯例并结合惯例进行 D5322 用于评估实验室和现场条件下的耐化学性。 4.2 本实践中的程序规范旨在作为那些希望在实际现场条件下比较或研究土工合成材料耐化学性的人的指南。

1.1 This practice describes an approach and methodology for immersion testing of geosynthetics (for example, geomembranes used for landfill liner). 1.2 This practice does not provide for definition of the testing to be performed on the geosynthetic samples for field immersion. This practice does not address the determination of resistance of the geosynthetic to the liquid in which it is immersed. The user of this practice is referred to the appropriate Standard Guide for Tests to evaluate the chemical resistance and for defining the testing to be performed for each of the geosynthetic components listed in 2.1 . Note 1: EPA Method 9090 has been used in the past to investigate the compatibility of geomembrane to leachates. 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.4 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. 1.5 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 ====== 4.1 This practice provides an approach and methodology for conducting field immersion testing of geosynthetics used in the construction of liners in reservoirs, ponds, impoundments, or landfills for containing liquids and solids. This practice should be performed in accordance to and in conjunction with Practice D5322 for assessing chemical resistance under both laboratory and field conditions. 4.2 The specification of procedures in this practice is intended to serve as a guide for those wishing to compare or investigate the chemical resistance of geosynthetics under actual field conditions.