ASTM F1281-11
(Specification)Standard Specification for Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene (PEX-AL-PEX) Pressure Pipe
Standard Specification for Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene (PEX-AL-PEX) Pressure Pipe
ABSTRACT
This specification covers a 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation:F1281 −11 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* 2. Referenced Documents
2
1.1 Thisspecificationcoversacoextrudedcrosslinkedpoly- 2.1 ASTM Standards:
ethylenecompositepressurepipewithaweldedaluminumtube D618Practice for Conditioning Plastics for Testing
reinforcement between the inner and outer layers. The inner D883Terminology Relating to Plastics
and outer crosslinked polyethylene layers are bonded to the D1598Test Method for Time-to-Failure of Plastic Pipe
aluminum tube by a melt adhesive. Included is a system of Under Constant Internal Pressure
nomenclature for the crosslinked polyethylene-aluminum- D1599Test Method for Resistance to Short-Time Hydraulic
crosslinked polyethylene (PEX-AL-PEX) pipes, the require- Pressure of Plastic Pipe, Tubing, and Fittings
ments and test methods for materials, the dimensions of the D1600TerminologyforAbbreviatedTermsRelatingtoPlas-
component layers and finished pipe, adhesion tests, and the tics
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burst and sustained pressure performance. Also given are the D1898Practice for Sampling of Plastics (Withdrawn 1998)
requirements and methods of marking. The pipe covered by D2122Test Method for Determining Dimensions of Ther-
this specification is intended for use in potable water distribu- moplastic Pipe and Fittings
tionsystemsforresidentialandcommercialapplications,water D2765Test Methods for Determination of Gel Content and
service, underground irrigation systems, and radient panel Swell Ratio of Crosslinked Ethylene Plastics
heating systems, baseboard, snow- and ice-melt systems, and D3350Specification for Polyethylene Plastics Pipe and Fit-
gases that are compatible with the composite pipe and fittings. tings Materials
E8Test Methods for Tension Testing of Metallic Materials
1.2 This specification covers only composite pipes incorpo-
F412Terminology Relating to Plastic Piping Systems
rating a welded aluminum tube. Pipes consisting of metallic
F1282 Specification for Polyethylene/Aluminum/
layers not welded together are outside the scope of this
Polyethylene (PE-AL-PE) Composite Pressure Pipe
specification.
F1974 Specification for Metal Insert Fittings for
1.3 Specifications for connectors for use with pipe meeting
Polyethylene/Aluminum/Polyethylene and Crosslinked
the requirements of this specification are given in Annex A1.
Polyethylene/Aluminum/Crosslinked Polyethylene Com-
posite Pressure Pipe
1.4 This specification excludes polyethylene-aluminum-
polyethylene pipes (see Specification F1282).
2.2 National Sanitation Foundation Standard:
Standard No. 61Drinking Water System Components—
1.5 The values stated in SI units are to be regarded as the
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Health Effects
standard. The values given in parentheses are for information
Standard No. 14Plastics Piping System Components and
only.
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Related Materials
1.6 The following precautionary caveat pertains only to the
2.3 Federal Standard:
test methods portion, Section 9, of this specification: This
5
Fed. Std. No. 123Marking for Shipments (CivilAgencies)
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
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
practices and determine the applicability of regulatory limita-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
tions prior to use.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
1 3
This specification is under the jurisdiction ofASTM Committee F17 on Plastic The last approved version of this historical standard is referenced on
Piping Systems and is the direct responsibility of Subcommittee F17.11 on www.astm.org.
4
Composite. Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd.,Ann
Current edition approved Sept. 15, 2011. Published September 2011. Originally Arbor, MI 48113-0140, http://www.nsf.org.
5
approved in 1990. Last previous edition approved in 2007 as F1281–07. DOI: AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
10.1520/F1281-11. Robbins Ave., Philadelphia, PA 19111-5098, Attn: NPODS.
*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
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This document is not anASTM standard and is intended only to provide the user of anASTM 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.
An American National Standard
Designation:F1281–07 Designation: F1281 – 11
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*
1.1 This specification covers a coextruded crosslinked polyethylene composite pressure pipe with a welded aluminum tube
reinforcementbetweentheinnerandouterlayers.Theinnerandoutercrosslinkedpolyethylenelayersarebondedtothealuminum
tubebyameltadhesive.Includedisasystemofnomenclatureforthecrosslinkedpolyethylene-aluminum-crosslinkedpolyethylene
(PEX-AL-PEX)pipes,therequirementsandtestmethodsformaterials,thedimensionsofthecomponentlayersandfinishedpipe,
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 and health practices and determine the applicability of regulatory limitations prior to use.
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
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
F1282 Specification for Polyethylene/Aluminum/Polyethylene (PE-AL-PE) Composite Pressure Pipe
F1974 Specification for Metal Insert Fittings for Polyethylene/Aluminum/Polyethylene and Crosslinked Polyethylene/
Aluminum/Crosslinked Polyethylene Composite Pressure Pipe
2.2 National Sanitation Foundation Standard:
1
This specification is under the jurisdiction ofASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.11 on Composite.
Current edition approved May 1, 2007. Published May 2007. Originally approved in 1990. Last previous edition approved in 2005 as F1281–05. DOI: 10.1520/F1281-07.
Current edition approved Sept. 15, 2011. Published September 2011. Originally approved in 1990. Last previous edition approved in 2007 as F1281–07. DOI:
10.1520/F1281-11.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Withdrawn.
3
Withdrawn. 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.
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