1、Designation:D472615An 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 and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioni
9、ng 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-ticsD2244 Practice for Calculation o
10、f 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)(PVC)and Related PVC and Chlorinate
11、d Poly(Vinyl Chloride)(CPVC)Building Products CompoundsD4226 Test Methods for Impact Resistance of Rigid Poly-(Vinyl Chloride)(PVC)Building ProductsD7209 Guide for Waste Reduction,Resource Recovery,andUse of Recycled Polymeric Materials and Products(With-drawn 2015)3E631 Terminology of Building Cons
12、tructionsE805 Practice for Identification of Instrumental Methods ofColor or Color-Difference 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-
13、gies D883 or E631 and D1600,unless otherwise indicated.1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.24 on Plastic BuildingProducts.Current edition approved May 1,2015.Published June 2015.Originallyapproved in 1987
14、.Last previous edition approved in 2009 as D4726 09.DOI:10.1520/D4726-15.2For 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 w
15、ebsite.3The last approved version of this historical standard is referenced onwww.astm.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 States1 3.2 Definitions of Terms Specific
16、to This Standard:3.2.1 color-hold guidelinestarget color regions within athree-dimensional model which constitute acceptable appear-ance retention levels of color change resulting from weatheringof a specific product type and color.3.2.2 temperate northern climatein weather testing,aNorth American metropolitan area testing site located within73 to 100 W longitude and 37 to 45 N latitude.4.Classification4.1 Color RegionsThe color region for a color is deter-mined by measuring the Hunter L,a,b col
