ASTM D7408-12(2020)

1.1 This specification covers the minimum values for seams fabricated into unreinforced PVC geomembranes in factory and field applications.

1.2 This specification covers PVC geomembranes in thickness of 0.25 through 1.52 mm (0.010 through 0.060 in.).

1.3 In addition to structural characteristics, the specifier shall evaluate other characteristics beyond the scope of this specification that affect the final choice of construction. These include, but are not limited to, functional, legal, insurance, and economic considerations.

1.4 This specification is not intended to exclude products or systems not covered by the referenced documents.

1.5 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.

1.6 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.

1.7 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.