1.1 本规程为预制土工膜面板的工厂接缝提供了制造质量控制指南。由于本文件中存在大量无法预期和涵盖的土工膜类型、焊接类型和制造工艺，因此本实践并不全面。 1.2 本规程仅适用于工厂制造的土工膜面板，不适用于现场制造。 1.3 本规程不包括主要土工膜制造过程中材料的连接，如三元乙丙橡胶板中的硫化重叠。 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 本规程旨在帮助预制面板的制造商、供应商、购买者和用户在土工膜面板制造过程中对工厂产生的接缝的测试要求。 4.2 土工膜的工厂接缝优于现场接缝，包括温度变化小、无风、更少的污染（土壤和水）问题、一致的焊接工作面，以及可能对现场环境不够坚固的工厂设备的选择。这使得工厂焊缝比现场焊缝更加一致，并且允许比现场焊缝更少的测试频率。 4.3 本指南无意取代项目特定的接缝和测试要求或质量保证计划。

1.1 This practice provides manufacturing quality control guidance for the factory seaming of fabricated geomembrane panels. This practice is not to be considered as all-encompassing since there are a large number of geomembrane types, weld types, and fabrication processes that cannot be anticipated and covered in this document. 1.2 This practice is written for factory-fabricated geomembrane panels only and does not apply to field fabrication onsite. 1.3 This practice does not cover joining of materials during the primary geomembrane manufacturing process such as the vulcanized overlaps found in EPDM sheet. 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 is intended to aid fabricators, suppliers, purchasers, and users of fabricated panels in the testing requirements for factory-created seams during fabrication of geomembrane panels. 4.2 Factory seaming of geomembranes has advantages over field seaming including less temperature variation, no wind, fewer contamination (soil and water) concerns, a consistent work surface for welding, and options for factory equipment that may not be robust enough for the field environment. This results in factory welds more consistent than field seams and allows for a lesser frequency of testing than for field seams. 4.3 This guide is not intended to replace project-specific seaming and testing requirements or quality assurance programs.