1.1 This specification covers requirements and test methods for the characterization of polyamide 11 pipe, tubing, and fittings for use in fuel gas pipelines. The pipe and fittings covered by this specification are intended for use in the distribution and transmission of fuel gases.
1.1.1 This specification does not cover threaded pipe. 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. NOTE 1—Heat fusion joining of PA11 pipe and fittings meeting the requirements of this standard is limited to PA11 pipe and fittings meeting the requirements of this standard. Heat Fusion joining of PA11 pipe and fittings meeting the requirements of this standard is not allowed to pipes and fittings made from any other thermoplastic materials (for example, PA12, PEs, PVCs, etc.).
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 The following is an index of the annexes and appendixes in this specification: Annexes Subject Annex A1 In-Plant Quality Control for sizes up to 12 in. Annex A2 PA-11 Butt Fusion Fittings Appendixes Subject Appendix X1 Butt Fusion Guidelines for PA-11 Piping Appendix X2 Design Consideration
1.5 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.
ASTM F2945-18 Referenced Document
ASTM D1598 Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure
ASTM D1599 Standard Test Method for Resistance to Short-Time Hydraulic Failure Pressure of Plastic Pipe, Tubing, and Fittings
ASTM D1600 Standard Terminology for Abbreviated Terms Relating to Plastics
ASTM D2122 Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
ASTM D2290 Standard Test Method for Apparent Hoop Tensile Strength of Plastic or Reinforced Plastic Pipe*, 2019-08-01 Update
ASTM D2774 Standard Practice for Underground Installation of Thermoplastic Pressure Piping
ASTM D2837 Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials
ASTM D3418 Standard Test Method for Transition Temperatures of Polymers By Differential Scanning Calorimetry
ASTM D4066 Standard Classification System for Nylon Injection and Extrusion Materials (PA)
ASTM D543 Standard Practices for Evaluating the Resistance of Plastics to Chemical Reagents
ASTM D618 Standard Practice for Conditioning Plastics for Testing*, 2021-07-15 Update
ASTM D638 Standard Test Method for Tensile Properties of Plastics
ASTM D648 Standard Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position*, 2024-04-21 Update
ASTM D789 Standard Test Methods for Determination of Relative Viscosity and Moisture Content of Polyamide (PA)
ASTM D790 Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials*, 2024-04-21 Update
ASTM D792 Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
ASTM F1025 Standard Guide for Selection and Use of Full-Encirclement-Type Band Clamps for Reinforcement or Repair of Punctures or Holes in Polyethylene Gas Pressure Pipe
ASTM F1563 Standard Specification for Tools to Squeeze-off Polyethylene (PE) Gas Pipe or Tubing
ASTM F1733 Standard Specification for Butt Heat Fusion Polyamide(PA) Plastic Fitting for Polyamide(PA) Plastic Pipe and Tubing
ASTM F1973 Standard Specification for Factory Assebled Anodeless Risers and Transition Fittings in Polyethylene (PE) Fuel Gas Distribution Systems
ASTM F2138 Standard Specification for Excess Flow Valves for Natural Gas Service
ASTM F2145 Standard Specification for Polyamide 11 (PA 11) and Polyamide 12 (PA12) Mechanical Fittings for Use on Outside Diameter Controlled Polyamide 11 and Polyamide 12 Pipe and Tubing*, 2023-02-01 Update
ASTM F2600 Standard Specification for Electrofusion Type Polyamide-11 Fittings for Outside Diameter Controlled Polyamide-11 Pipe and Tubing*, 2023-11-01 Update
ASTM F2897 Standard Specification for Tracking and Traceability Encoding System of Natural Gas Distribution Components (Pipe, Tubing, Fittings, Valves, and Appurtenances)*, 2023-11-01 Update
ASTM F412 Standard Terminology Relating to Plastic Piping Systems*, 2023-07-20 Update
ISO 1183 Plastics; Methods for determining the density and relative density of non-cellular plastics
ISO 13478 Thermoplastics pipes for the conveyance of fluids - Determination of resistance to rapid crack propagation (RCP) - Full-scale test (FST)
ISO 22621 Plastics piping systems for the supply of gaseous fuels for maximum operating pressures up to and including 2 MPa (20 bar) - Polyamide (PA) - Part 6: Code of practice for design, handling and installation
ASTM F2945-18 history
2023ASTM F2945-18(2023) Standard Specification for Polyamide 11 Gas Pressure Pipe, Tubing, and Fittings
2018ASTM F2945-18 Standard Specification for Polyamide 11 Gas Pressure Pipe, Tubing, and Fittings
2015ASTM F2945-15 Standard Specification for Polyamide 11 Gas Pressure Pipe, Tubing, and Fittings
2012ASTM F2945-12a Standard Specification for Polyamide 11 Gas Pressure Pipe, Tubing, and Fittings
2012ASTM F2945-12 Standard Specification for Polyamide 11 Gas Pressure Pipe, Tubing, and Fittings