1、Designation:D729218Standard Specification forExtruded,Compression-Molded,and Injection-Molded BasicShapes of Polyamide-Imide(PAI)1This standard is issued under the fixed designation D7292;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revisi
2、on,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 requirements and methods oftest for the material,dimensions,and workmanship ofext
3、ruded,compression molded,and injection molded partsmanufactured from PAI.1.2 The properties included in this specification are thoserequired for the compositions covered.Requirements neces-sary to identify particular characteristics important to special-ized applications are described by the classif
4、ication systemgiven in Section 5.1.3 This specification allows for the use of recycled mate-rials provided that specification requirements based upon thisspecification are met.1.4 The values stated in English units are to be regarded asstandard in all property and dimensional tables.For referencepur
5、poses,SI units and conversion factors are also included.1.5 The following precautionary caveat pertains only to thetest method portion Section 12,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 u
6、serof this standard to establish appropriate safety,health,andenvironmental practices and determine the applicability ofregulatory limitations prior to use.NOTE1There is no known ISO equivalent to this standard.1.6 This international standard was developed in accor-dance with internationally recogni
7、zed 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 Standards:2D256 Test Methods for Deter
8、mining the Izod PendulumImpact Resistance of PlasticsD618 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of PlasticsD790 Test Methods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating Materi-alsD792 Test Methods for Densit
9、y and Specific Gravity(Rela-tive Density)of Plastics by DisplacementD883 Terminology Relating to PlasticsD1708 Test Method for Tensile Properties of Plastics by Useof Microtensile SpecimensD3418 Test Method for Transition Temperatures and En-thalpies of Fusion and Crystallization of Polymers byDiffe
10、rential Scanning CalorimetryD3892 Practice for Packaging/Packing of PlasticsD4000 Classification System for Specifying Plastic Materi-alsD5204 Classification System and Basis for Specification forPolyamide-Imide(PAI)Molding and Extrusion MaterialsD7209 Guide for Waste Reduction,Resource Recovery,and
11、Use of Recycled Polymeric Materials and Products(With-drawn 2015)33.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 finished product(F),na product that meets thedimensional criteria of Tables A and B in this specification.3.1.2 plate,nflat stock with thickness greater than316in.(
12、4.76 mm).1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved Aug.1,2018.Published August 2018.Originallyapproved in 2006.Last previous edition approved in 2012 as D72
13、92-12.DOI:10.1520/D7292-18.2For 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 approved version of this hist
14、orical 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 StatesThis international standard was developed in accordance with internationally recog
15、nized 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 3.1.3 recycled plastic shape,na product made from up to100%recycle
16、d plastic.3.1.4 rod,nsolid extruded cylindrical shape with a mini-mum diameter of332in.(2.38 mm).3.1.5 virgin plastic shape,na shape produced entirely ofplastic resin that has not been melt processed more than once.3.2 Additional Definitions:3.2.1 For definitions of other technical terms pertaining toplastics used in this specification,see Terminology D883 orGuide D7209.4.Applications4.1 Typical applications for these parts are for products thatrequire low coefficient of friction,good thermal re
