ASTM_F_1281_-_17.pdf

Designation:F128117An American National StandardStandard Specification forCrosslinked Polyethylene/Aluminum/CrosslinkedPolyethylene(PEX-AL-PEX)Pressure Pipe1This standard is issued under the fixed designation F1281;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers a coextruded crosslinked poly-ethylene composite pressure pipe with a welded aluminum tubereinforcement between the inner and outer layers.The innerand outer crosslinked polyethylene layers are bonded to thealuminum tube by a melt adhesive.Included is a system ofnomenclature for the crosslinked polyethylene-aluminum-crosslinked polyethylene(PEX-AL-PEX)pipes,the require-ments and test methods for materials,the dimensions of thecomponent layers and finished pipe,adhesion tests,and theburst and sustained pressure performance.Also given are therequirements and methods of marking.The pipe covered bythis specification is intended for use in potable water distribu-tion systems for residential and commercial applications,waterservice,underground irrigation systems,and radient panelheating systems,baseboard,snow-and ice-melt systems,andgases that are compatible with the composite pipe and fittings.1.2 This specification covers only composite pipes incorpo-rating a welded aluminum tube.Pipes consisting of metalliclayers not welded together are outside the scope of thisspecification.1.3 Specifications for connectors for use with pipe meetingthe 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 thestandard.The values given in parentheses are for informationonly.1.6 The following precautionary caveat pertains only to thetest methods portion,Section 9,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety,health andenvironmental practices and determine the applicability ofregulatory limitations prior to use.1.7 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD883 Terminology Relating to PlasticsD1598 Test Method for Time-to-Failure of Plastic PipeUnder Constant Internal PressureD1599 Test Method for Resistance to Short-Time HydraulicPressure of Plastic Pipe,Tubing,and FittingsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD1898 Practice for Sampling of Plastics(Withdrawn 1998)3D2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD2765 Test Methods for Determination of Gel Content andSwell Ratio of Crosslinked Ethylene PlasticsD3350 Specification for Polyethylene Plastics Pipe and Fit-tings MaterialsE8 Test Methods for Tension Testing of Metallic MaterialsF412 Terminology Relating to Plastic Piping SystemsF1282 SpecificationforPolyethylene/Aluminum/Polyethylene(PE-AL-PE)Composite Pressure PipeF1974 SpecificationforMetalInsertFittingsforPolyethylene/Aluminum/Polyethylene and CrosslinkedPolyethylene/Aluminum/Crosslinked Polyethylene Com-posite Pressure Pipe2.2 National Sanitation Foundation Standard:Standard No.61 Drinking Water System ComponentsHealth Effects41This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.11 onComposite.Current edition approved Aug.1,2017.Published August 2017.Originallyapproved in 1990.Last previous edition approved in 2011 as F1281 11.DOI:10.1520/F1281-17.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from NSF International,P.O.Box 130140,789 N.Dixboro Rd.,AnnArbor,MI 48113-0140,http:/www.nsf.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations i