ASTM F3378/F3378M-22

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.
Designation: F3378/F3378M −22
Standard Specification for
1
Crosslinkable Polyethylene (CX-PE) Pipe
ThisstandardisissuedunderthefixeddesignationF3378/F3378M;thenumberimmediatelyfollowingthedesignationindicatestheyear
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 1.6 Joining of CX-PE pipes made in accordance with this
specification is outside the scope of this specification. For
1.1 This specification covers outside diameter controlled
guidance on the joining of CX-PE pipe consult Practice F3507
crosslinkablepolyethylene(CX-PE)pipeproducedinsizesDN
and manufacturer’s recommendations.
25 to 630 and NPS 1 to 24 in various dimension ratios.
Includedinthisspecificationarerequirementsandtestmethods 1.7 This specification references notes, footnotes, and
for the determination of the long-term hydrostatic strength, appendixes, which provide non-mandatory explanatory mate-
hydrostatic burst pressure, hydrostatic sustained pressure, UV rial. Excluding table footnotes which are mandatory, notes,
weathering resistance, initial and ultimate degree of footnotes and information in parentheses shall not be consid-
crosslinking, workmanship, and marking. ered as requirements of this specification.
1.2 This specification shall not be applied to crosslinked 1.8 The values stated in either SI units or inch-pound units
products, specifically PEX pipe or tubing. are to be regarded separately as standard. The values stated in
each system are not necessarily exact equivalents; therefore, to
NOTE 1—CX-PE is a different designation separate from conventional
ensure conformance with the standard, each system shall be
PEX materials, specifically with regard to the crosslinking rate,
used independently of the other, and values from the two
installation, and commissioning processes.
systems shall not be combined.
1.3 The pipe covered by this specification is intended for
1.9 This standard does not purport to address all of the
pressure and non-pressure applications. Fluids such as non-
safety concerns, if any, associated with its use. It is the
potable water, multi-phase mixed fluids, crude oils, gases, and
responsibility of the user of this standard to establish appro-
chemical solutions containing some water are allowed to be
priate safety, health, and environmental practices and deter-
transported in pipe made in accordance with this standard.
mine the applicability of regulatory limitations prior to use.
Permissible operating temperatures for commissioned piping
1.10 This international standard was developed in accor-
systems constructed from CX-PE pipe manufactured in accor-
dance with internationally recognized principles on standard-
dance with this specification are ≤ 200 °F [93 °C].
ization established in the Decision on Principles for the
1.4 Pipe produced in accordance with this specification is
Development of International Standards, Guides and Recom-
intended to be crosslinked during or after installation. The
mendations issued by the World Trade Organization Technical
procedures and practices to be used for the installation and
Barriers to Trade (TBT) Committee.
crosslinking of the CX-PE pipe are outside the scope of this
specification. Manufacturer’s recommendations for the com-
2. Referenced Documents
missioning of CX-PE pipe are used to ensure that the perfor-
2
2.1 ASTM Standards:
mance of the completed piping system meets design expecta-
D638 Test Method for Tensile Properties of Plastics
tions.
D792 Test Methods for Density and Specific Gravity (Rela-
NOTE 2—The difference between pipes made in accordance with this
tive Density) of Plastics by Displacement
specification and PEX pipes made in accordance with Specification F2905
D1505 Test Method for Density of Plastics by the Density-
isthatthefinalcrosslinkingprocessiscompletedaspartofinstallationand
Gradient Technique
commissioning as opposed to crosslinking taking place in the manufac-
turing facility. D1598 Test Method for Time-to-Failure of Plastic Pipe
Under Constant Internal Pressure
1.5 This specification includes requirements to demonstrate
D1599 Test Method for Resistance to Short-Time Hydraulic
a minimum level of performance in service.
Pressure of Plastic Pipe, Tubing, and Fittings
1
This specification is under the jurisdiction ofASTM Committee F17 on Plastic
2
Piping Systems and is the direct responsibility of Subcommittee F17.68 on Energy For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Piping Systems. contact ASTM Customer Service at service@ast
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