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ASTM F2785-18a

Historical Revision

Standard Specification for Polyamide 12 Gas Pressure Pipe, Tubing, and Fittings

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1.1 This specification covers requirements and test methods for the characterization of polyamide 12 pipe, tubing, and fittings for use in fuel gas mains and services for direct burial and reliner applications. The pipe and fittings covered by this specification are intended for use in the distribution of natural gas.

1.1.1 Pipe and fittings covered by this specification shall not be joined using taper pipe threads. Joining methods qualified in accordance with the requirements of Title 49 CFR Part 192.283 are acceptable. Generic fusion guidelines are given in Appendix X1. Design considerations are discussed in Appendix X2. In-plant quality control programs are specified in Annex A1.

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 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 1: Pipe and fittings utilizing heat fusion joining techniques produced from compounds meeting the requirements of Group 3, Class 2, and Grade 3 (PA323 or PA11) are intended for use with pipe manufactured from compounds meeting the requirements of Group 3, class 2 and Grade 3. Pipe and fittings utilizing heat fusion joining techniques produced from compounds meeting the requirements of Group 4, Class 2 and Grade 3 (PA 423 or PA12) are intended for use with pipe manufactured from compounds meeting the requirements of Group 4, Class 2 and Grade 3. As per the recommendations of the respective resin manufacturers, no cross fusion between PA 323 (PA11) and PA 423 (PA12) compounds is permitted.

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.


SDO ASTM: ASTM International
Document Number F2785
Publication Date Sept. 1, 2018
Language en - English
Page Count 14
Revision Level 18a
Supercedes
Committee F17.60
Publish Date Document Id Type View
July 1, 2021 F2785-21 Revision
Dec. 1, 2020 F2785-20E01 Revision
Dec. 1, 2020 F2785-20 Revision
Sept. 1, 2018 F2785-18A Revision
April 15, 2018 F2785-18 Revision
Aug. 1, 2012 F2785-12 Revision
Dec. 1, 2010 F2785-10A Revision
Oct. 1, 2010 F2785-10 Revision
Aug. 1, 2009 F2785-09E01 Revision
Aug. 1, 2009 F2785-09 Revision