ASTM F2945-12 - 15.8.2012
 
1. Scope

1.1 This specification covers requirements and test methods for the characterization of polyamide 11 pipe, tubing, and fittings for use in fuel gas piping. The pipe and fittings covered by this specification are intended for use in the transport 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.

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 and health practices and determine the applicability of regulatory limitations prior to use.

 
2. Referenced Documents

OPS Part 192 Title 49,

Title 49 Code of Federal Regulations

D4066-13(2019)

Standard Classification System for Nylon Injection and Extrusion Materials (PA)

D638-22

Standard Test Method for Tensile Properties of Plastics

D648-18

Standard Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position

D789-19

Standard Test Method for Determination of Relative Viscosity of Concentrated Polyamide (PA) Solutions

D790-17

Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials

D792-20

Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement

D1598-23

Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure

D1599-18

Standard Test Method for Resistance to Short-Time Hydraulic Pressure of Plastic Pipe, Tubing, and Fittings

D1600-18

Standard Terminology for Abbreviated Terms Relating to Plastics (Withdrawn 2024)

D543-21

Standard Practices for Evaluating the Resistance of Plastics to Chemical Reagents

D1898-68(1989)

Standard Practice for Sampling of Plastics (Withdrawn 1998)

D2122-22

Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings

D2290-19a

Standard Test Method for Apparent Hoop Tensile Strength of Plastic or Reinforced Plastic Pipe (Includes all amendments and changes 9/12/2019).

D2774-21a

Standard Practice for Underground Installation of Thermoplastic Pressure Piping (Includes all amendments and changes 10/6/2021).

D2837-22

Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for Thermoplastic Pipe Products

D3418-21

Standard Test Method for Transition Temperatures and Enthalpies of Fusion and Crystallization of Polymers by Differential Scanning Calorimetry

D618-21

Standard Practice for Conditioning Plastics for Testing

F412-23

Standard Terminology Relating to Plastic Piping Systems

F1025-19

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

F1563-23

Standard Specification for Tools to Squeeze-off Polyethylene (PE) Gas Pipe or Tubing

F1733-24

Standard Specification for Butt Heat Fusion Polyamide(PA) Plastic Fitting for Polyamide(PA) Plastic Pipe and Tubing

F1973-21

Standard Specification for Factory Assembled Anodeless Risers and Transition Fittings in Polyethylene (PE) and Polyamide 11 (PA11) and Polyamide 12 (PA12) Fuel Gas Distribution Systems

F2138-12(2017)

Standard Specification for Excess Flow Valves for Natural Gas Service

F2145-23

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

F2897-23a

Standard Specification for Tracking and Traceability Encoding System of Natural Gas Distribution Components (Pipe, Tubing, Fittings, Valves, and Appurtenances) (Includes all amendments and changes 11/3/2023).

B 16.40

Manually Operated Thermoplastic Gas Shutoffs and Valves in Gas Distribution Systems

B 31.8

Gas Transmission and Distribution Piping Systems

F2600-09(2023)

Standard Specification for Electrofusion Type Polyamide-11 Fittings for Outside Diameter Controlled Polyamide-11 Pipe and Tubing

Fed. Std. No. 123

Marking for Shipment (Civil Agencies)