1.1''This specification covers polyethylene (PE) pipe made in thermoplastic pipe dimension ratios based on outside diameter IPS ¹/₂''to 3, for both non-pressure and pressure rated water (see Appendix X1). Included are requirements for polyethylene compounds and PE plastic pipe, a system of nomenclature for PE plastic pipe, and requirements and test methods for materials, workmanship, dimensions, sustained pressure, and burst pressure. Methods of marking are also given.

1.2''For pipes produced under this specification that are intended for use in the distribution and transmission of potable water without oxidizing disinfectants, potable and non-potable water, grey water, reclaimed water, wastewater, force main and gravity municipal sewage, etc, the user should consult the manufacturer to determine whether the fluid being transported is compatible with polyethylene pipe and will not affect the service life beyond limits acceptable to the user.

1.3''For pipes produced under this specification that are intended for use in the distribution and transmission of potable water or other fluids containing oxidizing disinfectants (for example, Hypochlorous acid or chloramines), special requirements for PE compounds are specified in 5.2 and 5.3, and DR limitations are specified in 6.2.1.1 and 6.2.2.1.

1.4''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.

1.5''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.