ASTM F1281-03e1
(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
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 F 1282).
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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An American National Standard
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Designation: F 1281 – 03
Standard Specification for
Crosslinked Polyethylene/Aluminum/Crosslinked
1
Polyethylene (PEX-AL-PEX) Pressure Pipe
This standard is issued under the fixed designation F 1281; 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 (e) indicates an editorial change since the last revision or reapproval.
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e NOTE—Tables 2–5 and Table A2.1 were editorially corrected in July 2005.
1. Scope of this standard to establish appropriate safety and health
practices and determine the applicability of regulatory limita-
1.1 Thisspecificationcoversacoextrudedcrosslinkedpoly-
tions prior to use.
ethylenecompositepressurepipewithaweldedaluminumtube
reinforcement between the inner and outer layers. The inner
2. Referenced Documents
and outer crosslinked polyethylene layers are bonded to the
2.1 ASTM Standards:
aluminum tube by a melt adhesive. Included is a system of
D618 Practice for Conditioning Plastics for Testing
nomenclature for the crosslinked polyethylene-aluminum-
D883 Terminology Relating to Plastics
crosslinked polyethylene (PEX-AL-PEX) pipes, the require-
D1598 Test Method for Time-to-Failure of Plastic Pipe
ments and test methods for materials, the dimensions of the
Under Constant Internal Pressure
component layers and finished pipe, adhesion tests, and the
D1599 Test Method for Resistance to Short-Time Hydrau-
burst and sustained pressure performance. Also given are the
lic Pressure of Plastic Pipe, Tubing, and Fittings
requirements and methods of marking. The pipe covered by
D1600 Terminology for Abbreviated Terms Relating to
this specification is intended for use in potable water distribu-
Plastics
tionsystemsforresidentialandcommercialapplications,water
D1898 Practice for Sampling of Plastics
service, underground irrigation systems, and radient panel
D2122 Test Method for Determining Dimensions of Ther-
heating systems, baseboard, snow- and ice-melt systems, and
moplastic Pipe and Fittings
gases that are compatible with the composite pipe and fittings.
D2765 TestMethodsforDeterminationofGelContentand
1.2 This specification covers only composite pipes incorpo-
Swell Ratio of Crosslinked Ethylene Plastics
rating a welded aluminum tube. Pipes consisting of metallic
D3350 Specification for Polyethylene Plastics Pipe and
layers not welded together are outside the scope of this
Fittings Materials
specification.
E8 Test Methods for Tension Testing of Metallic Materials
1.3 Specifications for connectors for use with pipe meeting
F412 Terminology Relating to Plastic Piping Systems
the requirements of this specification are given in Annex A1.
F 1282 Specification for Polyethylene/Aluminum/
1.4 This specification excludes polyethylene-aluminum-
Polyethylene (PE-AL-PE) Composite Pressure Pipe
polyethylene pipes (see Specification F1282).
F 1974 Specification for Metal Insert Fittings for
1.5 The values stated in SI units are to be regarded as the
Polyethylene/Aluminum/Polyethylene and Crosslinked
standard. The values given in parentheses are for information
Polyethylene/Aluminum/Crosslinked Polyethylene Com-
only.
posite Pressure Pipe
1.6 The following precautionary caveat pertains only to the
2.2 National Sanitation Foundation Standard:
test methods portion, Section 9, of this specification: This
Standard No. 61 Drinking Water System Components—
standard does not purport to address all of the safety concerns,
2
Health Effects
if any, associated with its use. It is the responsibility of the user
Standard No. 14 Plastics Piping System Components and
2
Related Materials
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This specification is under the jurisdiction ofASTM Committee F17 on Plastic 2.3 Federal Standard:
Piping Systems and is the direct responsibility of Subcommittee F17.11 on
Composite.
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Current edition approved Oct. 1, 2003. Published November 2003. Originally Available from the NSF International, 789 N. Dixboro Rd., Ann Arbor, MI
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approved in 1990. Last previous edition approved in 2002 as F1281–02 . 48113-0140.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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F 1281 – 03
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Fed. Std. No. 123 Marking for Shipments (CivilAgencies) 5. Materials
2.4 Military Standard:
5.1 General—The PEX-AL-PEX pipe is composed of one
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MIL-STD-129 Marking for Shipment and Storage
metallic layer, two layers of the same polymeric adhesive, and
2.5 Uniform Classification Committee Standard:
two layers of the same crosslinked polyethylene. For pipe
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Uniform Freight Classification
made to this specification the constituent materials must meet
2.6 National Motor Freight Traffıc Ass
...
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