1、Designation:F226209Standard Specification forCrosslinked Polyethylene/Aluminum/CrosslinkedPolyethylene Tubing OD Controlled SDR91This standard is issued under the fixed designation F2262;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revisio
2、n,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.Scope1.1 This specification covers establishes requirements forcoextruded crosslinked polyethylene multi-layer pressur
3、e tub-ing with a continuously welded aluminum tube constructionbetween inner and outer layers of plastic.The inner and outercrosslinked polyethylene layers are bonded to the aluminum bya melt adhesive.The tubing is outside diameter controlled andmade in one standard dimension ratio,SDR9 and is inten
4、ded tobe used for hot and cold water conveyance in applications upto 180F(82.2C).Included in this specification is a system ofnomenclatureforcrosslinkedpolyethylene-aluminum-crosslinked polyethylene(PEX-AL-PEX)tubes,and the re-quirements and test methods for materials,dimensions ofcomponent layers a
5、nd the finished tubing,layer adhesion test,weld strength,short-term burst pressure,long-term sustainedpressure and marking requirements.The tubing covered by thisspecification is intended for use in potable water distributionsystems for residential and commercial applications,waterservice,hydronic r
6、adiant heating(HRH),radiant panel heating,baseboard,and snow melt systems.1.2 This specification covers only plastic-metal-plasticmulti-layer tubes incorporating a continuous welded aluminumtube.Tubing consisting of metallic layers not welded togetheris outside the scope of this specification.1.3 Un
7、itsThe values stated in inch-pound units are to beregarded as standard.The values given in parentheses aremathematical conversions to SI units that are provided forinformation only and are not considered standard.1.4 Specifications for connectors for use with pipe meetingthe requirements of this spe
8、cification are given in Annex A1.1.5 The following precautionary caveat pertains only to thetest method 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 e
9、stablish appropriate safety and healthpractices and determine the applicability of regulatory require-ments prior to use.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
10、PipeUnder Constant Internal PressureD1599 Test Method for Resistance to Short-Time HydraulicPressure of Plastic Pipe,Tubing,and FittingsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD2765 Test Methods for D
11、etermination of Gel Content andSwell Ratio of Crosslinked Ethylene PlasticsD3350 Specification for Polyethylene Plastics Pipe and Fit-tings MaterialsF412 Terminology Relating to Plastic Piping Systems2.2 NSF International Standards:NSF/ANSI 14 for Plastic Piping Components and RelatedMaterials3NSF/A
12、NSI 61 for Drinking Water System Components-Health Effects32.3 Federal Standard:Fed.Std.No.123 Marking for Shipments(Civil Agencies)42.4 Military Standard:MIL-STD-129 Marking for Shipment and Storage42.5 Uniform Classification and Committee Standard:Uniform Freight Classification51This specification
13、 is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.11 onComposite.Current edition approved May 1,2009.Published May 2009.Originallyapproved in 2003.Last previous edition approved in 2005 as F2262 05.DOI:10.1520/F2262-09.2For
14、 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.3Available from NSF International,P.O.Box 130140,789 N.Dixboro Rd.,Ann
15、Arbor,MI 48113-0140,http:/www.nsf.org.4Available from Standardization Documents Order Desk,DODSSP,Bldg.4,SectionD,700RobbinsAve.,Philadelphia,PA19111-5098,http:/www.dodssp.daps.mil.5Available from the Uniform Classification Committee,Suite 1106,222 SouthRiverside Plaza,Chicago,IL 60606.Copyright AST
16、M International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 2.6 National Motor Freight Traffc Association Standard:National Motor Freight Classification63.Terminology3.1 Definitions are in accordance with Terminology F412and abbreviations are in accordance with Terminology D1600,unless otherwise indicated.3.2 Definitions of Terms Specific to This Standard:3.2.1 tubing,PEX-AL-PEX,nmulti-layer tubing pro-duced by coextrusion or extrusion of layers of polyethyle
