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    ASTM F1281 - 17

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

    Active Standard ASTM F1281 | Developed by Subcommittee: F17.11

    Book of Standards Volume: 08.04

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    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.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    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, 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.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    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

    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

    National Motor Freight Traffic Association Standard

    National Motor Freight Classification Available fr

    Federal Standard

    Fed. Std. No. 123 Marking for Shipments (Civil Agencies) Available from DLA Document Services, Building 4/D, 700 Robbins Ave., Philadelphia, PA 19111-5094, http://quicksearch.dla.mil.

    Military Standard

    MIL-STD-129 Marking for Shipment and Storage

    National Sanitation Foundation Standard

    Standard No. 61

    ICS Code

    ICS Number Code 23.040.20 (Plastic pipes)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/F1281-17

    Citation Format

    ASTM F1281-17, Standard Specification for Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene (PEX-AL-PEX) Pressure Pipe, ASTM International, West Conshohocken, PA, 2017, www.astm.org

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