1.1 本规程规定了用于土工膜系统热熔焊的数据采集设备的最低数据记录、保存和报告要求。热熔焊设备可包括热楔或热楔焊机。根据使用本规程收集的数据，可以将任何生产焊缝上使用的焊接参数与试焊期间获得的焊接参数以及设定的焊接参数进行比较。本规程并不旨在确定任何给定焊缝的质量。本标准适用于所有可通过热熔焊接方法进行接缝的均质或稀松布增强土工膜。 1.2 本标准并不旨在解决与其使用相关的所有安全问题（如有）。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，并确定监管限制的适用性。 1.3 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《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 4.1 标准楔形焊接设备依赖于操作员正确调整焊接参数（温度、速度和压力），这是创建良好焊接所需的。在生产缝接过程中，一个或多个这些参数的变化，无论是有意还是无意，都可能导致焊接质量不佳。在数据采集系统之前，在整个焊接过程中验证焊接参数仅依赖于定期目视观察和记录，从而留下了很大的误差空间。该ASTM标准规程要求在热熔焊设备上安装数据采集系统，允许在焊接前沿焊缝的整个长度记录这些焊接参数- 在整个热熔合接缝过程中。 4.2 获取的数据可用于施工质量控制/施工质量保证计划，以将沿焊接长度记录位置的焊接参数与预设值（例如试缝期间获得的值）进行比较，以便于检测焊接长度上的任何异常。 4.3 本规程不包括测量精度，即现场温度、速度、压力或位置记录值的精度。它仅限于数据采集过程。 4.4 用户可以根据项目规范调整数据采集参数，例如记录数据的频率。

1.1 This practice establishes the minimum required data recording, saving, and reporting requirements for data acquisition devices used in thermal fusion welding of geomembrane systems. Thermal fusion welding devices may include hot-wedge or hot-air wedge welders. From the data collected using this practice, it is possible to compare the welding parameters used on any production weld to those obtained during the trial welding and to the set welding parameters. This practice does not purport to identify the quality of any given weld. This standard can be used for all geomembranes, homogeneous or scrim reinforced, that can be seamed by thermal fusion welding methods. 1.2 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. 1.3 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 Standard wedge welding devices rely on the operator to properly adjust the welding parameters (temperature, speed, and pressure) which are needed to create a sound weld. Changes in one or more of these parameters during production seaming, whether deliberate or accidental, can lead to poor weld quality. Prior to data acquisition systems, verifying welding parameters throughout the welding process relied solely on periodic visual observations and documentation, leaving substantial room for error. This ASTM standard practice, which requires a data acquisition system to be installed on thermal fusion welding devices, allows for the recording of these welding parameters along the entire length of the welded seam at pre-determined intervals, throughout the entire thermal fusion seaming process. 4.2 The acquired data can be used in the construction quality control / construction quality assurance program to compare the welding parameters at recorded locations along the welded length to preset values, such as the values obtained during the trial seam, to facilitate detection of anomalies anywhere on the welded length. 4.3 This practice does not cover the precision of the measurement, that is, the accuracy of the recorded values of temperature, speed, pressure, or position on the site. It is limited to the data acquisition process. 4.4 Data acquisition parameters, such as the frequency at which the data are recorded, may be adjusted by the user depending on project specifications.