1、Designation:D725415An American National StandardStandard Specification forPolypropylene(PP)Siding1This standard is issued under the fixed designation D7254;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A n
2、umber 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 and testmethods for materials,impact strength,appearance,surfaceflame spread,and windload resis
3、tance of siding productsmanufactured from polypropylene material.Methods of indi-cating compliance with this specification are also provided.1.2 The use of polypropylene recycled plastic in this prod-uct shall be in accordance with the requirements in Section 4.1.3 Siding produced to this specificat
4、ion shall be installed inaccordance with manufacturers installation instructions for thespecific product to be installed.NOTE1Information with regard to siding maintenance shall beobtained from the manufacturer.1.4 The values stated in inch-pound units are to be regardedas the standard.The SI units
5、given in parentheses are forinformation purposes only.1.5 The following precautionary caveat pertains to the testmethod portion only,Section 6 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 user
6、of this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.NOTE2There is no known ISO equivalent to this standard.2.Referenced Documents2.1 ASTM Standards:2D883 Terminology Relating to PlasticsD1435 Practice for Outdoo
7、r Weathering of PlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD3679 Specification for Rigid Poly(Vinyl Chloride)(PVC)SidingD3892 Practice for Packaging/Packing of PlasticsD4101 Specification for Polypropylene Injection and Extru-sion MaterialsD4226 Test Methods for Impact Resis
8、tance of Rigid Poly-(Vinyl Chloride)(PVC)Building ProductsD5033 Guide for Development ofASTM Standards Relatingto Recycling and Use of Recycled Plastics(Withdrawn2007)3D5206 Test Method for Windload Resistance of Rigid Plas-tic SidingE84 Test Method for Surface Burning Characteristics ofBuilding Mat
9、erialsE631 Terminology of Building ConstructionsG147 Practice for Conditioning and Handling of Nonmetal-lic Materials for Natural and Artificial Weathering Tests2.2 ASCE Standard:ASCE 7-02 Minimum Design Loads for Buildings and OtherStructures43.Terminology3.1 Definitions are in accordance with Term
10、inologies D883,D1600,and E631,unless otherwise specified.3.2 Definitions of Terms Specific to This Standard:3.2.1 polypropylene sidinga shaped material,made prin-cipally from polypropylene homopolymer,or copolymer,which in some cases may contain fillers and/or reinforcements,that is used to clad ext
11、erior walls of buildings.3.2.2 self-supporting specimena specimen that remains inplace by its own structural characteristics both before andduring the fire test.3.2.3 temperate northern climatein weather testing,aNorth American metropolitan area testing site located within73 to 100 W longitude and 3
12、7 to 45 N latitude.4.Materials and Manufacture4.1 The siding shall be made principally of polypropylenecompound,prepared from polypropylene homopolymer orcopolymer.1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.24 o
13、n Plastic BuildingProducts.Current edition approved April 1,2015.Published April 2015.Originallyapproved in 2007.Last previous edition approved in 2007 as D7254 07.DOI:10.1520/D7254-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.o
14、rg.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 American Society of Civil Engineers(ASCE),1801 AlexanderBell Dr.,Reston,VA 20191.
15、*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 4.2 Where polypropylene recycled plastic as defined inGuide D5033 is used,the siding containing the polypropylenerecycled pla
16、stic shall meet all the requirements in the sectionson Terminology(Section 3),on Materials and Manufacture(Section 4),and on Physical Requirements(Section 5).4.3 The polypropylene compound shall be compounded soas to provide the heat stability and weather exposure stabilityrequired for the siding market application.5.Physical Requirements5.1 ColorThe color of the siding shall be within thedefined color parameters for the specific color agreed uponbetween the purchaser and the seller.5.2 Impact R