1.1本规程描述了使用封隔器方法用适当的化学灌浆测试和密封单个污水管接头的程序。下水道系统应包括卫生、雨水和合流系统及其附件。化学灌浆是一种土壤密封过程，用于密封泄漏点管道外部周围土壤中的空隙。化学灌浆不被视为结构修复。 1.2本规程适用于6至42英寸的下水道。直径（18至107厘米）。直径较大的管道可使用专用封隔器或人工进入方法进行灌浆。 主管道内表面必须足以为封隔器元件形成有效密封。 1.3以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.4工人安全培训应包括审查与软管、泵、储罐、耦合器、压缩机、瓶子、电机和所有其他相关应用装置相关的危险。化学灌浆制造商或供应商或两者应提供额外的安全注意事项，包括化学灌浆的安全处理、混合和运输。 其安全操作规程和程序应详细描述各种灌浆作业的适当个人防护设备（PPE）。涵盖的操作应包括正确储存、运输、混合和处置化学灌浆、添加剂及其相关容器。 1.5 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和健康实践，并确定监管限制的适用性。 ====意义和用途====== 污水管接头的检查、测试和维修是一种有助于维持和优化污水性能的做法。重要的是确定使用最新化合物和技术的方法，以确保减少渗透和渗出。选择的方法应使用环境安全的水泥浆，并尽量减少交通中断。 本规程是使用封隔器方法，在选择了适当的化学灌浆后，检查、测试和密封污水管接头的一种方法。 电视检查和联合测试用于识别污水管道状况、有缺陷的接头，并记录所进行的维修。然后详细说明接缝密封说明（如有必要），使用化学灌浆（化学密封材料）将压力注入管道接缝周围的土壤中。 这种做法不适用于纵向开裂的管道、严重腐蚀的管道、结构不健全的管道、扁平或不圆的管道。在测试点地下水压力高于10 psi（68.9 ksi）的区域，请咨询设备制造商。

1.1 This practice describes the procedures for testing and sealing individual sewer pipe joints with appropriate chemical grouts using the packer method. Sewer systems shall include sanitary, storm, and combined and their appurtenances. Chemical grouting is a soil sealing process, which seals the voids within the soil surrounding the exterior of the pipe at the point of leakage. Chemical grouting is not considered a structural repair. 1.2 This practice applies to sewers 6 to 42 in. (18 to 107 cm) in diameter. Larger diameter pipe may be grouted with specialized packers or man entry methods. Host pipe interior surfaces must be adequate to create an effective seal for the packer elements. 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 Worker safety training should include reviewing the hazards associated with hoses, pumps, tanks, couplers, compressors, bottles, motors, and all other related application apparatus. Additional safety considerations including safely handling, mixing, and transporting of chemical grouts should be provided by the chemical grout manufacturer or supplier or both. Their safe operating practices and procedures should describe in detail appropriate personal protective equipment (PPE) for the various grouting operations. Operations covered should include the proper storage, transportation, mixing, and disposal of chemical grouts, additives, and their associated containers. 1.5 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 and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== The inspection, testing, and repair of sewer pipe joints is a practice that can assist in maintaining and optimizing sewer performance. It is important to identify methods that use the most current compounds and technology to ensure the reduction of infiltration and exfiltration. The method selected should utilize environmentally safe grout and minimize the disruption of traffic. This practice serves as a means to inspect, test, and seal sewer pipe joints, having selected the appropriate chemical grouts, using the packer method. Television inspection and joint testing are used to identify sewer line conditions, defective joints, and document the repairs undertaken. Instruction on joint sealing, if necessary, is then detailed, using pressure injection into the soils encompassing the pipe joint with a chemical grout (chemical sealing material). This practice should not be used for longitudinally cracked pipe, severely corroded pipe, structurally unsound pipe, flattened, or out-of-roundpipe. In areas with high groundwater pressure, greater than 10 psi (68.9 ksi) at the test point, consult equipment manufacturers.