ASTM D2737-12a(R2020) pdf free download

ASTM D2737-12a(R2020) pdf free download.Standard Specification for Polyethylene (PE) Plastic Tubing
1. Scope
1.1 This specification covers polyethylene (PE) plastic tub- ing in outside diameters and SDR’s that are pressure rated for water. Included are requirements for PE compounds, and requirements and test methods for PE plastic tubing workmanship, dimensions, elevated temperature sustained pressure, burst pressure and marking. 1.2 The text ofthis specification references notes, footnotes, and appendixes which provide explanatory material. These notes and footnotes shall not be considered as requirements of the specification. Notes and footnotes in tables and figures, and Supplementary Requirements are requirements of the specifi- cation. 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. N OTE 1—Joining PE plastic tubing with fittings that require flaring the tubing is not recommended because Practice D3140, the technique used to make the flare has been withdrawn (discontinued). N OTE 2—References and PE compound descriptions for PE2305, PE2406, PE3306, PE3406, and PE3408 have been removed due to changes in Specification D3350 and PPI TR-3. For removed designations, refer to previous editions of Specification D2737, Specification D3350, PPI TR-3 and PPI TR-4. The removal of these PE compounds does not affect pipelines that are in service. PE compounds and material designa- tions resulting from changes in Specification D3350 and PPI TR-3 are addressed in Section 5. 1.4 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 ofthe safety concerns, ifany, associated with its use. It is the responsibility ofthe 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 accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
5. Materials
5.1 Polyethylene Compound—Polyethylene compounds suitable for use in the manufacture of tubing under this specification shall meet thermoplastic materials designation codes PE2708 or PE3608 or PE4608 or PE4710, and shall meet Table 1 requirements for PE2708 or PE3608 or PE4608 or PE4710, and shall meet thermal stability, brittleness tempera- ture and elongation at break requirements in accordance with Specification D3350. 5.1.1 Color and Ultraviolet (UV) Stabilization— Polyethylene compounds shall meet Specification D3350 code C, D or E. In addition, Code C polyethylene compounds shall have 2 to 3 percent carbon black, and Code D or E polyethyl- ene compounds shall have sufficient UV stabilizer to protect tubing from deleterious UV exposure effects during unpro- tected outdoor shipping and storage for at least eighteen (18) months. N OTE 4—Pipe users should consult with the pipe manufacturer about the outdoor exposure life of the product under consideration. Evaluation of UV stabilizer in Code D or E PE compound using Practice D2565 or Practice G154 or Practice G155 may be useful for this purpose. 5.1.2 Colors for solid color, an external color layer or color stripes—In accordance with the APWA Uniform Color Code, blue shall identify potable water service; green shall identify sewer service; and purple (lavender) shall identify reclaimed water service. Yellow identifies gas service and shall not be used. 5.2 Products intended for contact with potable water shall be evaluated, tested and certified for conformance with NSF/ ANSI Standard No. 61 or the health effects portion of NSF/ ANSI Standard No. 14 by a certifying organization acceptable to the authority having jurisdiction. 5.3 Rework Material—Clean polyethylene compound from the manufacturer’s own tubing production that met 5.1 through 5.2 as new PE compound is suitable for re-extrusion into tubing when blended with new PE compound having the same material designation. Tubing containing rework material shall meet all the requirements of this specification.