1.1 本规程是用于定位外露土工膜中泄漏的电气方法的基于性能的标准。为清楚起见，本规程使用术语“泄漏”表示已安装土工膜（定义见 3.2.6 ). 1.2 这种做法可用于安装在水池、池塘、储罐、矿石和废物垫、填埋单元、填埋盖、运河和其他围堵设施中的土工膜。适用于由聚乙烯、聚丙烯、聚氯乙烯、氯磺化聚乙烯、沥青土工膜和任何其他电绝缘材料制成的土工膜。 本规程最适用于在设施施工期间进行适当准备的情况下定位土工膜泄漏。 1.3 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 土工膜用作屏障，防止液体从垃圾填埋场、池塘和其他容器中泄漏。为此，希望土工膜具有尽可能少的泄漏。 4.2 这些液体可能含有污染物，如果释放，可能会对环境造成损害。泄漏的液体会侵蚀路基，造成进一步损坏。泄漏可能导致产品损失或以其他方式阻止装置实现其预期的密封目的。 4.3 土工膜通常在现场组装，或者在现场将土工膜材料的面板展开并焊接在一起，或者在现场展开柔性土工膜，或者两者的组合。 4.4 路基质量差、铺设在土工膜上的材料质量差、事故、工艺差、制造缺陷和粗心都可能导致土工膜泄漏。 4.5 电气泄漏定位方法是检测和定位泄漏的有效且经验证的质量保证措施。它们不会验证材料或接缝的完整性。

1.1 This practice is a performance-based standard for an electrical method for locating leaks in exposed geomembranes. For clarity, this practice uses the term “leak” to mean holes, punctures, tears, knife cuts, seam defects, cracks, and similar breaches in an installed geomembrane (as defined in 3.2.6 ). 1.2 This practice can be used for geomembranes installed in basins, ponds, tanks, ore and waste pads, landfill cells, landfill caps, canals, and other containment facilities. It is applicable for geomembranes made of materials such as polyethylene, polypropylene, polyvinyl chloride, chlorosulfonated polyethylene, bituminous geomembrane, and any other electrically insulating materials. This practice is best applicable for locating geomembrane leaks where the proper preparations have been made during the construction of the facility. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 Geomembranes are used as barriers to prevent liquids from leaking from landfills, ponds, and other containments. For this purpose, it is desirable that the geomembrane have as little leakage as practical. 4.2 The liquids may contain contaminants that, if released, can cause damage to the environment. Leaking liquids can erode the subgrade, causing further damage. Leakage can result in product loss or otherwise prevent the installation from performing its intended containment purpose. 4.3 Geomembranes are often assembled in the field, either by unrolling and welding panels of the geomembrane material together in the field, unfolding flexible geomembranes in the field, or a combination of both. 4.4 Geomembrane leaks can be caused by poor quality of the subgrade, poor quality of the material placed on the geomembrane, accidents, poor workmanship, manufacturing defects, and carelessness. 4.5 Electrical leak location methods are an effective and proven quality assurance measure to detect and locate leaks. They do not verify material or seam integrity.