ASTM D 8468:2023

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.

25.160.30, 59.080.70