ASTM F 2785 : 2021
Current
The latest, up-to-date edition.
Standard Specification for Polyamide 12 Gas Pressure Pipe, Tubing, and Fittings
Hardcopy , PDF
English
07-26-2021
Important note : All end users must be registered with an Account prior to user licenses being assigned.| Committee |
F 17
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| DocumentType |
Standard
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| Pages |
12
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| PublisherName |
American Society for Testing and Materials
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| Status |
Current
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| Supersedes |
1.1This 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.
1.1.1Pipe and fittings covered by this specification shall not be joined using taper pipe threads. Butt fusion joining shall be done in accordance with Practice F3372. Design considerations are discussed in Appendix X1. In-plant quality control programs are specified in Annex A1.
1.2The 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.
1.3The 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.
1.4This 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.
1.5This 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.
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| ASTM D 6779 : 2023 | Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA) |
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| ASTM D 618 : 2013 | Standard Practice for Conditioning Plastics for Testing |
| ASTM F 2897 : 2023 | Standard Specification for Tracking and Traceability Encoding System of Natural Gas Distribution Components (Pipe, Tubing, Fittings, Valves, and Appurtenances) |
| ASTM F 412 : 2023 | Standard Terminology Relating to Plastic Piping Systems |
| ASTM D 1598 : 2021 | Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure |
| ASTM D 2122 : 2016 | Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings |
| ASTM F 1473 : 2023 | Standard Test Method for Notch Tensile Test to Measure the Resistance to Slow Crack Growth of Polyethylene Pipes and Resins |
| ASTM D 6779 : 2021 | Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA) |
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