ASTM F2788/F2788M-19
(Specification)Standard Specification for Metric and Inch-sized Crosslinked Polyethylene (PEX) Pipe
Standard Specification for Metric and Inch-sized Crosslinked Polyethylene (PEX) Pipe
SCOPE
1.1 This specification covers crosslinked polyethylene (PEX) pipe that is outside diameter controlled in metric pipe sizes 16 mm to 1000 mm and inch pipe sizes 3 in. to 54 in., made in nominal pipe dimension ratios, and pressure rated for water at three temperatures (see Appendix X1). Included are requirements and test methods for material, workmanship, dimensions, burst pressure, hydrostatic sustained pressure, excessive temperature-pressure, environmental stress cracking, stabilizer functionality, bent-pipe hydrostatic pressure, oxidative stability in potable chlorinated water, degree of crosslinking, and minimum operating temperature. Requirements for pipe markings are also given. The pipe covered by this specification is intended for pressure piping applications, such as, industrial and general-purpose pipelines, potable water pipelines, and fire–extinguishing pipelines.
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 either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.4 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.
1.5 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.
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Designation:F2788/F2788M −19 An American National Standard
Standard Specification for
1
Metric and Inch-sized Crosslinked Polyethylene (PEX) Pipe
ThisstandardisissuedunderthefixeddesignationF2788/F2788M;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* 2. Referenced Documents
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1.1 This specification covers crosslinked polyethylene 2.1 ASTM Standards:
(PEX) pipe that is outside diameter controlled in metric pipe D618 Practice for Conditioning Plastics for Testing
sizes 16 mm to 1000 mm and inch pipe sizes 3 in. to 54 in., D792 Test Methods for Density and Specific Gravity (Rela-
made in nominal pipe dimension ratios, and pressure rated for tive Density) of Plastics by Displacement
water at three temperatures (see Appendix X1). Included are D1505 Test Method for Density of Plastics by the Density-
requirements and test methods for material, workmanship, Gradient Technique
dimensions, burst pressure, hydrostatic sustained pressure, D1598 Test Method for Time-to-Failure of Plastic Pipe
excessive temperature-pressure, environmental stress cracking, Under Constant Internal Pressure
stabilizer functionality, bent-pipe hydrostatic pressure, oxida- D1599 Test Method for Resistance to Short-Time Hydraulic
tive stability in potable chlorinated water, degree of Pressure of Plastic Pipe, Tubing, and Fittings
crosslinking, and minimum operating temperature. Require- D1600 TerminologyforAbbreviatedTermsRelatingtoPlas-
ments for pipe markings are also given. The pipe covered by tics
3
this specification is intended for pressure piping applications, D1898 Practice for Sampling of Plastics (Withdrawn 1998)
suchas,industrialandgeneral-purposepipelines,potablewater D2122 Test Method for Determining Dimensions of Ther-
pipelines, and fire–extinguishing pipelines. moplastic Pipe and Fittings
D2290 Test Method for Apparent Hoop Tensile Strength of
1.2 Thetextofthisspecificationreferencesnotes,footnotes,
Plastic or Reinforced Plastic Pipe
and appendixes, which provide explanatory material. These
D2565 Practice for Xenon-Arc Exposure of Plastics In-
notesandfootnotes(excludingthoseintablesandfigures)shall
tended for Outdoor Applications
not be considered as requirements of the specification.
D2765 Test Methods for Determination of Gel Content and
1.3 The values stated in either SI units or inch-pound units
Swell Ratio of Crosslinked Ethylene Plastics
are to be regarded separately as standard. The values stated in
D2837 Test Method for Obtaining Hydrostatic Design Basis
each system may not be exact equivalents; therefore, each
forThermoplasticPipeMaterialsorPressureDesignBasis
system shall be used independently of the other. Combining
for Thermoplastic Pipe Products
values from the two systems may result in non-conformance
D3895 Test Method for Oxidative-Induction Time of Poly-
with the standard.
olefins by Differential Scanning Calorimetry
1.4 This standard does not purport to address all of the
F412 Terminology Relating to Plastic Piping Systems
safety concerns, if any, associated with its use. It is the F1055 Specification for Electrofusion Type Polyethylene
responsibility of the user of this standard to establish appro-
Fittings for Outside Diameter Controlled Polyethylene
priate safety, health, and environmental practices and deter- and Crosslinked Polyethylene (PEX) Pipe and Tubing
mine the applicability of regulatory limitations prior to use.
F2023 Test Method for Evaluating the Oxidative Resistance
1.5 This international standard was developed in accor- of Crosslinked Polyethylene (PEX) Pipe, Tubing and
dance with internationally recognized principles on standard-
Systems to Hot Chlorinated Water
ization established in the Decision on Principles for the F2657 Test Method for Outdoor Weathering Exposure of
Development of International Standards, Guides and Recom-
Crosslinked Polyethylene (PEX) Tubing
mendations issued by the World Trade Organization Technical F2829 Specification for Metric- and Inch-Sized Crosslinked
Barriers to Trade (TBT) Committee.
1 2
This specification is under the jurisdiction ofASTM Committee F17 on Plastic For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Piping Systems and is the direct responsibility of Subcommittee F17.26 on Olefin contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Based Pipe. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved April 15, 2019. Published May 2019. Originally the ASTM website.
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approved in 2009. Last previous edition approved in 2018 as F2788/F2788M–18. The last approved v
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F2788/F2788M − 18 F2788/F2788M − 19 An American National Standard
Standard Specification for
1
Metric and Inch-sized Crosslinked Polyethylene (PEX) Pipe
This standard is issued under the fixed designation F2788/F2788M; the number immediately following the designation indicates the year
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*
1.1 This specification covers crosslinked polyethylene (PEX) pipe that is outside diameter controlled in metric pipe sizes 16 mm
to 1000 mm and inch pipe sizes 3 in. to 54 in., made in nominal pipe dimension ratios, and pressure rated for water at three
temperatures (see Appendix X1). Included are requirements and test methods for material, workmanship, dimensions, burst
pressure, hydrostatic sustained pressure, excessive temperature-pressure, environmental stress cracking, stabilizer functionality,
bent-pipe hydrostatic pressure, oxidative stability in potable chlorinated water, degree of crosslinking, and minimum operating
temperature. Requirements for pipe markings are also given. The pipe covered by this specification is intended for pressure piping
applications, such as, industrial and general-purpose pipelines, potable water pipelines, and fire–extinguishing pipelines.
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 either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.4 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.
1.5 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D618 Practice for Conditioning Plastics for Testing
D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D1505 Test Method for Density of Plastics by the Density-Gradient Technique
D1598 Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure
D1599 Test Method for Resistance to Short-Time Hydraulic Pressure of Plastic Pipe, Tubing, and Fittings
D1600 Terminology for Abbreviated Terms Relating to Plastics
3
D1898 Practice for Sampling of Plastics (Withdrawn 1998)
D2122 Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
D2290 Test Method for Apparent Hoop Tensile Strength of Plastic or Reinforced Plastic Pipe
D2565 Practice for Xenon-Arc Exposure of Plastics Intended for Outdoor Applications
D2765 Test Methods for Determination of Gel Content and Swell Ratio of Crosslinked Ethylene Plastics
D2837 Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for
Thermoplastic Pipe Products
D3895 Test Method for Oxidative-Induction Time of Polyolefins by Differential Scanning Calorimetry
F412 Terminology Relating to Plastic Piping Systems
1
This specification is under the jurisdiction of ASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.26 on Olefin Based
Pipe.
Current edition approved Feb. 1, 2018April 15, 2019. Published March 2018May 2019. Originally approved in 2009. Last previous edition approved in 20152018 as
F2788/F2788M–15.–18. DOI: 10.1520/F2788_F2788M-17.10.1520/F2788_F2788M-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is r
...
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