ASTM D 3350:2025

1.1 This specification covers the initial identification of polyethylene (PE) compound pipe and fittings materials in accordance with a cell classification system. It is not the function of this specification to provide specific engineering data for design purposes, to specify manufacturing tolerances, or to determine suitability for use for a specific application. Annex A1 covers the periodic testing of compounds classified by the Specification for the purposes of incoming material identification, quality control testing of finished goods or certification of properties. Note 1: Materials are to be selected by personnel with expertise in the plastics field. The environment to be encountered, the inherent properties of the materials, the part design, the part performance required and the manufacturing process to be employed should be considered in the selection. Note 2: Some PE compounds for pipe and fitting classified by this standard are sold as a base material and then combined with other material(s) (for example, color or additive concentrate) by the pipe or fitting manufacturer into a final classified compound either prior to or during production of the final article. In the case of PE compounds sold as the compound classified by the standard, see Annex A1 regarding property verification of the incoming classified compound. Note 3: Compounds with a cell classification value other than ‘0' for the Hydrostatic Strength Classification ( Table 1 , property 6) rely on a defined formulation. The composition of the defined formulation can be obtained from the owner of the formulation. Deviations from the defined formulation may affect the Hydrostatic Strength Classification. Note 4: The notes in this specification are for information only and shall not be considered part of this specification. 1.2 The values stated in SI units are to be regarded as standard. Values in parenthesis are provided for information and are not exact conversions from the standard SI units. 1.3 For information regarding PE molding and extrusion materials for applications other than pipe or fitting, see Specification D4976 . For information regarding wire and cable materials see Specification D1248 . 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. Note 5: There is no known ISO equivalent to this standard. 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.

23.040.20, 23.040.45