ASTM F3378/F3378M-22
Standard Specification for Crosslinkable Polyethylene (CX-PE) Pipe

Standard No.

ASTM F3378/F3378M-22

Release Date

2022

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM F3378/F3378M-22

Scope

1.1 This specification covers outside diameter controlled crosslinkable polyethylene (CX-PE) pipe produced in sizes DN 25 to 630 and NPS 1 to 24 in various dimension ratios. Included in this specification are requirements and test methods for the determination of the long-term hydrostatic strength, hydrostatic burst pressure, hydrostatic sustained pressure, UV weathering resistance, initial and ultimate degree of crosslinking, workmanship, and marking. 1.2 This specification shall not be applied to crosslinked products, specifically PEX pipe or tubing. NOTE 1—CX-PE is a different designation separate from conventional PEX materials, specifically with regard to the crosslinking rate, installation, and commissioning processes. 1.3 The pipe covered by this specification is intended for pressure and non-pressure applications. Fluids such as nonpotable water, multi-phase mixed fluids, crude oils, gases, and chemical solutions containing some water are allowed to be transported in pipe made in accordance with this standard. Permissible operating temperatures for commissioned piping systems constructed from CX-PE pipe manufactured in accordance with this specification are ≤ 200 °F [93 °C]. 1.4 Pipe produced in accordance with this specification is intended to be crosslinked during or after installation. The procedures and practices to be used for the installation and crosslinking of the CX-PE pipe are outside the scope of this specification. Manufacturer’s recommendations for the commissioning of CX-PE pipe are used to ensure that the performance of the completed piping system meets design expectations. NOTE 2—The difference between pipes made in accordance with this specification and PEX pipes made in accordance with Specification F2905 is that the final crosslinking process is completed as part of installation and commissioning as opposed to crosslinking taking place in the manufacturing facility. 1.5 This specification includes requirements to demonstrate a minimum level of performance in service. 1.6 Joining of CX-PE pipes made in accordance with this specification is outside the scope of this specification. For guidance on the joining of CX-PE pipe consult Practice F3507 and manufacturer’s recommendations. 1.7 This specification references notes, footnotes, and appendixes, which provide non-mandatory explanatory material. Excluding table footnotes which are mandatory, notes, footnotes and information in parentheses shall not be considered as requirements of this specification. 1.8 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.9 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. 1.10 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 F3378/F3378M-22 Referenced Document

• ASTM D1505 Standard Test Method for Density of Plastics by the Density-Gradient Technique
• 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 D1603 Standard Test Method for Carbon Black In Olefin 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
• ASTM D2565 Standard Practice for Xenon-Arc Exposure of Plastics Intended for Outdoor Applications
• ASTM D2765 Standard Test Methods for Determination of Gel Content and Swell Ratio of Crosslinked Ethylene Plastics
• ASTM D2837 Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials
• ASTM D3895 Standard Test Method for Oxidative-Induction Time of Polyolefins by Differential Scanning Calorimetry
• ASTM D4218 Standard Test Method for Determination of Carbon Black Content in Polyethylene Compounds By the Muffle-Furnace Technique
• ASTM D4329 Standard Practice for Fluorescent UV Exposure of Plastics
• ASTM D4364 Standard Practice for Performing Outdoor Accelerated Weathering Tests of Plastics Using Concentrated Sunlight
• ASTM D638 Standard Test Method for Tensile Properties of Plastics
• ASTM D792 Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
• ASTM F2023 Standard Test Method for Evaluating the Oxidative Resistance of Crosslinked Polyethylene (PEX) Pipe, Tubing and Systems to Hot Chlorinated Water
• ASTM F2657 Standard Test Method for Outdoor Weathering Exposure of Crosslinked Polyethylene (PEX) Tubing
• ASTM F2905/F2905M Standard Specification for Crosslinked Polyethylene (PEX) Line Pipe For Oil and Gas Producing Applications
• ASTM F3203 Standard Test Method for Determination of Gel Content of Crosslinked Polyethylene (PEX) Pipes and Tubing*， 2023-07-01 Update
• ASTM F3507 Standard Practice for Butt-Fusion Joining of Crosslinkable Polyethylene (CX-PE) Pipe and Tubing
• ASTM F412 Standard Terminology Relating to Plastic Piping Systems*， 2023-07-20 Update
• ASTM F876 Standard Specification for Crosslinked Polyethylene (PEX) Tubing*， 2024-02-13 Update
• ISO 14531-1 Plastics pipes and fittings - Crosslinked polyethylene (PE-X) pipe systems for the conveyance of gaseous fuels - Metric series - Specifications - Part 1: Pipes
• ISO 161-1 Thermoplastics pipes for the conveyance of fluids — Nominal outside diameters and nominal pressures — Part 1: Metric series — Amendment 1*， 2023-04-01 Update
• ISO 9080 Plastics piping and ducting systems - Determination of the long-term hydrostatic strength of thermoplastics materials in pipe form by extrapolation

ASTM F3378/F3378M-22 history

• 2022 ASTM F3378/F3378M-22 Standard Specification for Crosslinkable Polyethylene (CX-PE) Pipe