1、Designation:D434922Classification System and Basis for Specification forPolyphenylene Ether(PPE)Materials1This standard is issued under the fixed designation D4349;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revi
2、sion.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 classification system covers the basic polymers andcopolymers known as polyphenylene ethers and polyphenyleneoxides,as well as
3、 filled,modified,and reinforced versions.Recycled materials are included in this standard as Class 5 ofTable PPE.NOTE1The addition to the natural polymer or copolymer ofpigments,colorants,or other additives can cause the final composition tono longer meet the requirements specified for the natural p
4、olymer orcopolymer.NOTE2The preferred abbreviation for polyphenylene ether is PPE,asnoted in Terminology D1600.1.2 This classification system and subsequent line callout(specification)are intended to provide a means of calling outplastic materials used in the fabrication of end items or parts.It is
5、not intended for the selection of materials.Materialselection should be made by those having expertise in theplastic field after careful consideration of the design and theperformance required of the part,the environment to which itwill be exposed,the fabrication process to be employed,thecosts invo
6、lved,and the inherent properties of the material otherthan those covered by this standard.1.3 There may be other requirements necessary to identifyparticular characteristics important to specific applications.These are to be specified by using the suffixes described inSection 5.1.4 The values stated
7、 in SI units are to be regarded asstandard.NOTE3There is no known ISO equivalent to this standard.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International
8、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 Determining the Izod PendulumImpact Resistance of PlasticsD618 Practice for Conditioning Plastics for TestingD638 Test
9、 Method for Tensile Properties of PlasticsD648 Test Method for Deflection Temperature of PlasticsUnder Flexural Load in the Edgewise PositionD790 Test Methods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating Materi-alsD792 Test Methods for Density and Specific
10、 Gravity(Rela-tive Density)of Plastics by DisplacementD883 Terminology Relating to PlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD3892 Practice for Packaging/Packing of PlasticsD4000 Classification System for Specifying Plastic Materi-alsD5630 Test Method for Ash Content in Pla
11、stics(Withdrawn2022)3D7209 Guide for Waste Reduction,Resource Recovery,andUse of Recycled Polymeric Materials and Products(With-drawn 2015)3E29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 Underwriters Laboratories:UL 94 Standards for Tests for Fl
12、ammability for Parts inDevices and Appliances42.3 ISO Standards:5ISO 3451-1 PlasticsDetermination of ashPart 1:Gen-eral methods1This classification system is under the jurisdiction ofASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Curre
13、nt edition approved July 1,2022.Published July 2022.Originally approvedin 1989.Last previous edition approved in 2016 as D4349-16.DOI:10.1520/D4349-22.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandard
14、s 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 Underwriters Laboratories(UL),2600 N.W.Lake Rd.,Camas,WA 98607-8542,http:/.5Available from American National Standa
15、rds Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.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 a
16、ccordance 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.13.Terminology3.1 The terminology used in this classification is in accor-dance with Terminologies D883 and D1600.3.2 The polyphenylene ether materials will be designatedPPE as specified in Terminology D1600.4.Classification4.1 Poly
