1.1本标准实施规程描述了使用导电土工布和电气方法定位外露土工膜和覆盖有水或含水分土料的土工膜泄漏的标准程序。 1.2本标准实施规程为在土工膜泄漏位置测量中使用适当导电土工布提供了指导。本指南包括所有类型的导电土工布，对于特定的漏电定位方法具有足够的导电性。 当土工膜下没有导电层时，导电土工布适用于所有类型的地电测量。 1.3泄漏流本身具有足够的导电性。当土工膜下没有导电层时，导电土工布适用于所有类型的地电测量。 1.4本标准惯例旨在确保泄漏位置测量始终能够以合理的确定性水平进行。 本标准实施规程为在土工膜泄漏位置测量中使用适当导电土工布提供了指导。 1.5泄漏位置测量可用于安装在水池、池塘、储罐、矿石和废物垫、填埋单元、填埋盖、其他遏制设施和建筑应用（如停车场、甲板和绿色屋顶）中的非导电土工膜。本程序适用于由非导电材料制成的土工膜，如聚乙烯、聚丙烯、聚氯乙烯、氯磺化聚乙烯、沥青材料和其他导电材料- 绝缘材料。涉及导电或部分导电土工膜的泄漏位置调查不在本文件范围内。 1.6 警告- 用于土工膜泄漏定位的电气方法可能使用高电压，导致触电或触电的可能性。由于可能在水中或附近进行作业，这种危险可能会增加。特别是，水或接地材料与接地或任何接地导体之间可能存在高压。 这些程序可能非常危险，并可能导致人身伤害或死亡。由于可能涉及高压以及电击或触电危险，除非励磁电源关闭，否则不要与任何泄漏发生电气接触。用于土工膜泄漏位置的电气方法只能由合格且经验丰富的人员尝试。必须采取适当的安全措施，保护泄漏位置的操作员以及现场的其他人员。 1.7 本标准指南并非旨在解决与其使用相关的所有安全和责任问题（如有）。本标准指南的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 5.1随着越来越多地使用土工膜作为屏障材料来限制液体从一个位置迁移到另一个位置，需要进行标准化测试，通过标准化测试可以评估安装的土工膜（包括接缝）的完整性。 当路基土壤不导电时，或在不导电材料上安装土工膜时，本实践旨在满足此类需求。 5.2使用安装在非导电土壤或材料与土工膜之间的适当导电土工布将允许进行漏电位置测量。 5.3应针对考虑的每种泄漏定位技术（适用时，覆盖或暴露）评估导电土工布和泄漏定位设备的兼容性。 土工布和/或检漏设备的供应商应进行实际的小规模测试，以证明其与给定检漏技术的相互兼容性。

1.1 This standard practice describes standard procedures for using a conductive geotextile with electrical methods to locate leaks in exposed geomembranes and geomembranes covered with water or earth materials containing moisture. 1.2 This standard practice provides guidance for the use of appropriate conductive geotextile used in leak location survey on geomembrane. This guide includes all types of conductive geotextile with sufficient conductivity for the particular electrical leak location method. A conductive geotextile is applicable to all types of geoelectric surveys when there is otherwise not a conductive layer under the geomembrane. 1.3 The leak stream itself being adequately conductive. A conductive geotextile is applicable to all types of geoelectric surveys when there is otherwise not a conductive layer under the geomembrane. 1.4 This standard practice is intended to ensure that leak location surveys can always be performed with a reasonable level of certainty. This standard practice provides guidance for the use of appropriate conductive geotextile used in leak location survey on geomembranes. 1.5 Leak location surveys can be used on non-conductive geomembranes installed in basins, ponds, tanks, ore and waste pads, landfill cells, landfill caps, other containment facilities and building applications such as in parking garages, decks and green roofs. The procedures are applicable for geomembranes made of non conductive materials such as polyethylene, polypropylene, polyvinyl chloride, chlorosulfonated polyethylene, bituminous material, and other electrically-insulating materials. Leak location survey involving conductive or partially conductive geomembranes are not within the scope of this document. 1.6 Warning— The electrical methods used for geomembrane leak location could use high voltages, resulting in the potential for electrical shock or electrocution. This hazard might be increased because operations might be conducted in or near water. In particular, a high voltage could exist between the water or earth material and earth ground, or any grounded conductor. These procedures are potentially VERY DANGEROUS, and can result in personal injury or death. Because of the high voltage that could be involved, and the shock or electrocution hazard, do not come in electrical contact with any leak unless the excitation power supply is turned off. The electrical methods used for geomembrane leak location should be attempted only by qualified and experienced personnel. Appropriate safety measures must be taken to protect the leak location operators as well as other people at the site. 1.7 This standard guide does not purport to address all of the safety and liability concerns, if any, associated with its use. It is the responsibility of the user of this standard guide to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== 5.1 With the increased use of geomembranes as a barrier material to restrict liquid migration from one location to another, a need has been created for standardized tests by which the integrity of the installed geomembrane, including the seams, can be evaluated. This practice is intended to meet such a need whenever the sub-graded soil is non-conductive, or a geomembrane is installed on a non-conductive material. 5.2 The use of a suitably-conductive geotextile installed between a non-conductive soil or material and the geomembrane will permit electrical leak location survey to be conducted. 5.3 The compatibility of a conductive geotextile and leak location equipment shall be assessed for each leak location technique considered (covered or exposed, when applicable). A realistic small scale test shall have been conducted by the supplier of geotextile and / or leak detection equipment to demonstrate their mutual compatibility for a given leak detection technique.