ASTM F1281-17

Standard Specification for Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene (PEX-AL-PEX) Pressure Pipe

ABSTRACT
This specification covers coextruded cross linked polyethylene composite pressure pipe with welded aluminum tube reinforcement between the inner and outer layers. The inner and outer cross linked polyethylene layers are bonded to the aluminum tube by a melt adhesive. Included is a system of nomenclature for the cross linked polyethylene-aluminum cross linked polyethylene (PEX-AL-PEX) pipes, the requirements and test methods for materials, the dimensions of the component layers and finished pipe, adhesion tests, and the burst and sustained pressure performance. Also given are the requirements and methods of marking. The pipe covered by this specification is intended for use in potable water distribution systems for residential and commercial applications, water service, underground irrigation systems, and radiant panel heating systems, baseboard, snow- and ice-melt systems, and gases that are compatible with the composite pipe and fittings. It covers only composite pipes incorporating a welded aluminum tube. The PEX-AL-PEX pipes are classified by the outside diameter. The pipe shall be free of visible cracks, holes, foreign inclusions, blisters, and other known injurious defects. The pipe shall be as uniform as practicable in color, opacity, density, and other physical properties.
SCOPE
1.1 This specification covers a coextruded crosslinked polyethylene composite pressure pipe with a welded aluminum tube reinforcement between the inner and outer layers. The inner and outer crosslinked polyethylene layers are bonded to the aluminum tube by a melt adhesive. Included is a system of nomenclature for the crosslinked polyethylene-aluminum-crosslinked polyethylene (PEX-AL-PEX) pipes, the requirements and test methods for materials, the dimensions of the component layers and finished pipe, adhesion tests, and the burst and sustained pressure performance. Also given are the requirements and methods of marking. The pipe covered by this specification is intended for use in potable water distribution systems for residential and commercial applications, water service, underground irrigation systems, and radient panel heating systems, baseboard, snow- and ice-melt systems, and gases that are compatible with the composite pipe and fittings.  
1.2 This specification covers only composite pipes incorporating a welded aluminum tube. Pipes consisting of metallic layers not welded together are outside the scope of this specification.  
1.3 Specifications for connectors for use with pipe meeting the requirements of this specification are given in Annex A1.  
1.4 This specification excludes polyethylene-aluminum-polyethylene pipes (see Specification F1282).  
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.6 The following precautionary caveat pertains only to the test methods portion, Section 9, of this specification: 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.  
1.7 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.

General Information

• Status: Historical
• Publication Date: 31-Jul-2017
• ICS: 23.040.20 - Plastics pipes
• Technical Committee: F17 - Plastic Piping Systems
• Drafting Committee: F17.11 - Composite

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F1281 −17 An American National Standard
Standard Specification for
Crosslinked Polyethylene/Aluminum/Crosslinked
1
Polyethylene (PEX-AL-PEX) Pressure Pipe
This standard is issued under the fixed designation F1281; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 1.7 This international standard was developed in accor-
dance with internationally recognized principles on standard-
1.1 Thisspecificationcoversacoextrudedcrosslinkedpoly-
ization established in the Decision on Principles for the
ethylenecompositepressurepipewithaweldedaluminumtube
Development of International Standards, Guides and Recom-
reinforcement between the inner and outer layers. The inner
mendations issued by the World Trade Organization Technical
and outer crosslinked polyethylene layers are bonded to the
Barriers to Trade (TBT) Committee.
aluminum tube by a melt adhesive. Included is a system of
nomenclature for the crosslinked polyethylene-aluminum-
2. Referenced Documents
crosslinked polyethylene (PEX-AL-PEX) pipes, the require-
2
2.1 ASTM Standards:
ments and test methods for materials, the dimensions of the
D618Practice for Conditioning Plastics for Testing
component layers and finished pipe, adhesion tests, and the
D883Terminology Relating to Plastics
burst and sustained pressure performance. Also given are the
D1598Test Method for Time-to-Failure of Plastic Pipe
requirements and methods of marking. The pipe covered by
Under Constant Internal Pressure
this specification is intended for use in potable water distribu-
D1599Test Method for Resistance to Short-Time Hydraulic
tionsystemsforresidentialandcommercialapplications,water
Pressure of Plastic Pipe, Tubing, and Fittings
service, underground irrigation systems, and radient panel
D1600TerminologyforAbbreviatedTermsRelatingtoPlas-
heating systems, baseboard, snow- and ice-melt systems, and
tics
gases that are compatible with the composite pipe and fittings.
3
D1898Practice for Sampling of Plastics (Withdrawn 1998)
1.2 This specification covers only composite pipes incorpo-
D2122Test Method for Determining Dimensions of Ther-
rating a welded aluminum tube. Pipes consisting of metallic
moplastic Pipe and Fittings
layers not welded together are outside the scope of this
D2765Test Methods for Determination of Gel Content and
specification.
Swell Ratio of Crosslinked Ethylene Plastics
1.3 Specifications for connectors for use with pipe meeting D3350Specification for Polyethylene Plastics Pipe and Fit-
the requirements of this specification are given in Annex A1.
tings Materials
E8Test Methods for Tension Testing of Metallic Materials
1.4 This specification excludes polyethylene-aluminum-
F412Terminology Relating to Plastic Piping Systems
polyethylene pipes (see Specification F1282).
F1282 Specification for Polyethylene/Aluminum/
1.5 The values stated in SI units are to be regarded as the
Polyethylene (PE-AL-PE) Composite Pressure Pipe
standard. The values given in parentheses are for information
F1974 Specification for Metal Insert Fittings for
only.
Polyethylene/Aluminum/Polyethylene and Crosslinked
1.6 The following precautionary caveat pertains only to the
Polyethylene/Aluminum/Crosslinked Polyethylene Com-
test methods portion, Section 9, of this specification: This
posite Pressure Pipe
standard does not purport to address all of the safety concerns,
2.2 National Sanitation Foundation Standard:
if any, associated with its use. It is the responsibility of the user
Standard No. 61Drinking Water System Components—
4
of this standard to establish appropriate safety, health and
Health Effects
environmental practices and determine the applicability of
regulatory limitations prior to use.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
1
This specification is under the jurisdiction ofASTM Committee F17 on Plastic Standards volume information, refer to the standard’s Document Summary page on
Piping Systems and is the direct responsibility of Subcommittee F17.11 on the ASTM website.
3
Composite. The last approved version of this historical standard is referenced on
Current edition approved Aug. 1, 2017. Published August 2017. Originally www.astm.org.
4
approved in 1990. Last previous edition approved in 2011 as F1281–11. DOI: Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd.,Ann
10.1520/F1281-17. Arbor, MI 48113-0140, http://www.nsf.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box
...

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: F1281 − 11 F1281 − 17 An American National Standard
Standard Specification for
Crosslinked Polyethylene/Aluminum/Crosslinked
1
Polyethylene (PEX-AL-PEX) Pressure Pipe
This standard is issued under the fixed designation F1281; 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 a coextruded crosslinked polyethylene composite pressure pipe with a welded aluminum tube
reinforcement between the inner and outer layers. The inner and outer crosslinked polyethylene layers are bonded to the aluminum
tube by a melt adhesive. Included is a system of nomenclature for the crosslinked polyethylene-aluminum-crosslinked polyethylene
(PEX-AL-PEX) pipes, the requirements and test methods for materials, the dimensions of the component layers and finished pipe,
adhesion tests, and the burst and sustained pressure performance. Also given are the requirements and methods of marking. The
pipe covered by this specification is intended for use in potable water distribution systems for residential and commercial
applications, water service, underground irrigation systems, and radient panel heating systems, baseboard, snow- and ice-melt
systems, and gases that are compatible with the composite pipe and fittings.
1.2 This specification covers only composite pipes incorporating a welded aluminum tube. Pipes consisting of metallic layers
not welded together are outside the scope of this specification.
1.3 Specifications for connectors for use with pipe meeting the requirements of this specification are given in Annex A1.
1.4 This specification excludes polyethylene-aluminum-polyethylene pipes (see Specification F1282).
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.6 The following precautionary caveat pertains only to the test methods portion, Section 9, of this specification: 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 safety, health and healthenvironmental practices and determine the applicability of
regulatory limitations prior to use.
1.7 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
D883 Terminology Relating to Plastics
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
D2765 Test Methods for Determination of Gel Content and Swell Ratio of Crosslinked Ethylene Plastics
D3350 Specification for Polyethylene Plastics Pipe and Fittings Materials
E8 Test Methods for Tension Testing of Metallic Materials
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 F17.11 on Composite.
Current edition approved Sept. 15, 2011Aug. 1, 2017. Published September 2011August 2017. Originally approved in 1990. Last previous edition approved in 20072011
as F1281 – 07.F1281 – 11. DOI: 10.1520/F1281-11.10.1520/F1281-17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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 referenced on www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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