1.1?This specification establishes requirements for polyethylene of raised temperature (PE-RT) systems for non-potable water applications. System components include PE-RT SDR 9 tubing, manifolds, fittings, valves and other appurtenances, and mechanical and fusion joining. PE-RT tubing is pressure rated for water at 73 ?F (23 ?C) and 180 ?F (82 ?C), and optionally 140 ?F (60 ?C). Included are requirements for materials, workmanship, dimensions and tolerances, product tests, and markings. Fittings include mechanical insert fittings and fusion fittings.

1.2?The text of this specification references notes, footnotes, and appendixes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.

1.3?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.

1.4?The tubing systems produced under this specification are intended for use in the transport of non-potable water such as hydronic and irrigation systems.

1.5?The following safety hazards caveat pertains only to the test methods portion, Section 7, of this specification. 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.

1.6?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.