1.1 本规程规定了在使用数据记录设备时，在塑料管道系统中的热对接熔合接头上记录的数据记录信息，以便将制造接头所用的程序与规定的热对接熔接程序进行比较。本规程适用于所有热对接熔焊程序，如规程 F2620 规格 F3372 规格 F2945 国际标准或其他合格程序。本规程主要适用于液压操作的热对接熔接机，可用于记录手动完成的热对接熔合接头- 操作的熔接机。 1.2 此实践提供了一套用于执行一个或多个特定操作的说明。本文件不能取代教育或经验，应与专业判断结合使用。并非此做法的所有方面都适用于所有情况。本ASTM标准并不代表或取代必须判断特定专业服务是否充分的护理标准，也不应在不考虑项目许多独特方面的情况下应用本文件。标题中的“标准”一词仅表示该文件已通过ASTM共识程序批准。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ===意义和用途====== 5.1 设备记录包括关于热对接熔合接头的制作方式（加热器温度、压力以及加热、熔合和冷却步骤的时间）的信息，以及关于工艺、作业、使用的设备等的其他重要信息。将设备记录与指定的热对接熔合程序参数进行比较，以确定是否正确遵循了该程序。为了进行比较，从数据记录中生成时间与压力的关系图，以显示对接熔合过程中发生的压力变化。将时间-压力曲线图与过程中的步骤进行比较有助于确定观察到了过程参数( 注1 )。（请参见 附录X1 .）这些记录可以从设备下载并存储。 5.2 当与手动机器一起使用时，该装置会记录有关所用程序、操作员、设备和管道材料的信息。该装置可以拍摄设置（对准和清洁度）以及完成的熔珠的照片。这些记录可以从设备下载并存储。 注1: 该装置不能显示热对接融合条件的所有方面（如风、寒冷天气、吹尘和沙子等），也不排除适用融合标准或程序中所述的定期联合测试。

1.1 This practice specifies the data recording information that is recorded, when data recording equipment is used, on heat butt fusion joints in a plastic piping system in order to compare the procedure used in making the joint to the heat butt fusion joining procedure specified. This practice is suitable for use with all heat butt fusion joining procedures such as Practice F2620 , Specification F3372 , Specification F2945 international standards or other qualified procedures. This practice primarily applies to hydraulically operated heat butt fusion machines and can be utilized for documenting heat butt fusion joints completed with manually-operated fusion machines. 1.2 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project’s many unique aspects. The word “Standard” in the title means only that the document has been approved through the ASTM consensus process. 1.3 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. 1.4 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 ====== 5.1 The Device record includes information about how the heat butt fusion joint was made (heater temperature, pressures and times for the heating, fusion and cooling steps) and other important information about the process, job, equipment used, etc. The Device record is compared to the specified heat butt fusion procedure parameters to determine if the procedure was followed correctly. For comparison purposes, a graph of time versus pressure is generated from the data record to show pressure changes that occur during the butt fusion process. Comparing the time versus pressure graph to the steps in the procedure helps determine that the procedure parameters were observed, ( Note 1 ). (See Appendix X1 .) These records may be downloaded from the device and stored. 5.2 When used in conjunction with manually-operated machines, the Device records information about the procedure used, the operator, the equipment, and the piping material. The Device may capture photographs of the set up (alignment and cleanliness) as well as the completed fusion bead. These records may be downloaded from the device and stored. Note 1: The Device cannot show all aspects of the heat butt fusion conditions (such as wind, cold weather, blowing dust and sand, etc.) and does not preclude periodic joint testing as described in the applicable fusion standard or procedure.