4.1 This practice is to provide guidance for designers and specifiers, regulatory agencies, owners, and inspection organizations who are involved in the rehabilitation of conduits. Modifications may be required depending on specific job conditions to establish a project specification. The manufacturer of the product should be consulted for design and installation information.

1.1 This practice covers the requirements for the installation of deformed polyethylene (PE) liner for pipeline rehabilitation.

1.2 This practice describes a method by which the PE liner may be installed with little or no excavation.

1.3 This practice applies to the rehabilitation of 3 to 18 in. (76 to 457 mm) diameter pipe in terms of installation. The specifier determines what DR is used based on conditions of the specific application.

1.4 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.

1.5 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.