ASTM F3708-25

1.1 This specification covers materials, and test requirements for flexible fabric reinforced pipe (FFRP) made with fabric reinforcement consisting of para-aramid fibers or a combination of para-aramid and polyester fibers.

1.2 FFRP produced to this specification is for use in pressure pipeline rehabilitation by installing a continuous factory modified “U” or “C” shaped flexible aramid fiber-reinforced pipe into an existing pipeline, then reverting it to its original round shape using air or water pressure to achieve a loose-fit condition within the bore of the existing pipeline as a non-interactive pipe within a pipe.

1.3 FFRP produced to this specification are intended for the rehabilitation of a variety of pressure pipelines that transport potable and non-potable water, raw water, fire water, municipal sewage, sea water, brine, and industrial process liquids.

1.4 The same pipe may be used as an above ground or stand-alone piping system for water or other fluid transport, such as emergency water pipelines, temporary bypass pipelines, and similar point-to-point pressurized applications.

1.5 Units—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.