1、Designation:F128111Standard 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
2、,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 alumin
3、um 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 t
4、est 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
5、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 alumin
6、um 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(s
7、ee 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
8、 all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:2D618 Practice for Cond
9、itioning 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 t
10、o 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
11、 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
12、CrosslinkedPolyethylene/Aluminum/Crosslinked Polyethylene Com-posite Pressure Pipe2.2 National Sanitation Foundation Standard:Standard No.61 Drinking Water System ComponentsHealth Effects4Standard No.14 Plastics Piping System Components andRelated Materials42.3 Federal Standard:Fed.Std.No.123 Markin
13、g for Shipments(Civil Agencies)51This 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 Sept.15,2011.Published September 2011.Originallyapproved in 1990.Last previous edi
14、tion approved in 2007 as F1281 07.DOI:10.1520/F1281-11.2For 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 a
15、pproved 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.5Available from Standardization Documents Order Desk,Bldg.4 Section D,700Robbins Ave.,Philadelphia,PA 19111-5098,Attn:N
16、PODS.*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 States1 2.4 Military Standard:MIL-STD-129 Marking for Shipment and Storage52.5 Uniform Classification Committee Standard:Uniform Freight Classification62.6 National Motor Freight Traffc Association Standard:National Motor Freight Classification73.Terminology3.1 DefinitionsDefinitions are in accordance with Termi-nology F412,an
