1、Designation:D472618An American National StandardStandard Specification forRigid Poly(Vinyl Chloride)(PVC)Exterior-Profile ExtrusionsUsed for Assembled Windows and Doors1This standard is issued under the fixed designation D4726;the number immediately following the designation indicates the year ofori
2、ginal 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 establishes requirements for the ma-terialpropert
3、ies,includingdimensionalstability,weatherability,and extrusion quality,of rigid poly(vinyl chlo-ride)(PVC)exterior profile extrusions used for assembledwindows and doors.Methods for testing and for identifyingexterior profile extrusions that comply with this specificationare also provided.1.2 The us
4、e of rigid PVC recycled plastic in this productshall be in accordance with the requirements in Section 6.NOTE1Information with regard to application,assembly,and instal-lation should be obtained from the manufacturers of the profiles and of thewindows and doors.NOTE2Refer to Specification D3678 for
5、interior profile extrusions.1.3 Color-hold guidelines are provided in an appendix forthe manufacturers product development and quality perfor-mance use.1.4 Color-hold guidelines are presently limited to white,grey,beige,light brown,and dark brown(see Figs.X1.1through X1.5).Additional colors will be
6、added as colorguidelines are developed.1.5 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are for informa-tion only.NOTE3There is no known ISO equivalent to this standard.1.6 The text of this standard references notes and footnotes,which provide e
7、xplanatory material.These notes and footnotes(excluding those in tables and figures)shall not be consideredas requirements of this standard.1.7 The following safety hazards caveat pertains only to thetest methods portion,Section 11,of this specification:Thisstandard does not purport to address all o
8、f 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.1.8 This international standard was developed in accor-dan
9、ce 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 Standar
10、ds:2D618 Practice for Conditioning Plastics for TestingD883 Terminology Relating to PlasticsD1042 Test Method for Linear Dimensional Changes ofPlastics Caused by Exposure to Heat and MoistureD1435 Practice for Outdoor Weathering of PlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-tics
11、D2244 Practice for Calculation of Color Tolerances andColor Differences from Instrumentally Measured ColorCoordinatesD3678 Specification for Rigid Poly(Vinyl Chloride)(PVC)Interior-Profile ExtrusionsD3892 Practice for Packaging/Packing of PlasticsD4216 Specification for Rigid Poly(Vinyl Chloride)(PV
12、C)and Related PVC and Chlorinated Poly(Vinyl Chloride)(CPVC)Building Products CompoundsD4226 Test Methods for Impact Resistance of Rigid Poly-(Vinyl Chloride)(PVC)Building ProductsE631 Terminology of Building ConstructionsE805 Practice for Identification of Instrumental Methods ofColor or Color-Diff
13、erence Measurement of MaterialsG147 Practice for Conditioning and Handling of Nonmetal-lic Materials for Natural and Artificial Weathering Tests3.Terminology3.1 GeneralDefinitions are in accordance with Terminolo-gies D883 or E631 and D1600,unless otherwise indicated.1This specification is under the
14、 jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.24 on Plastic BuildingProducts.Current edition approved Aug.1,2018.Published September 2018.Originallyapproved in 1987.Last previous edition approved in 2015 as D4726 15.DOI:10.1520/D4726-18.2For refe
15、renced 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.*A Summary of Changes section appears at the end of this standardCopyright
16、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 issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 3.2 Definitions of Terms Specific to This Standard:3.2.1 color-hold guidelinestarget c
