1、Designation:D747219Standard Specification forEFEP-Fluoropolymer Molding and Extrusion Materials1This standard is issued under the fixed designation D7472;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A num
2、ber 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 melt processible molding andextrusion materials of EFEP-fluoropolymer.The EFEP resin isa copolymer of ethylene,tetr
3、afluoroethylene,and hexafluoro-propylene.1.2 This specification does not cover blended materials anddoes not cover recycled materials.1.3 The values stated in SI units as detailed in IEEE/ASTMSI-10 are to be regarded as the standard.The values given inparentheses are for information only.1.4 The fol
4、lowing safety hazards caveat pertains only to thetest method portion,Section 11,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 userof this standard to establish appropriate safety,health,andenvi
5、ronmental practices and determine the applicability ofregulatory limitations prior to use.NOTE1AlthoughthisspecificationandISO 20568-1andISO 20568-2 differ in approach or detail,data obtained using either aretechnically equivalent.1.5 This international standard was developed in accor-dance with int
6、ernationally 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 Standards:2D150 Te
7、st Methods for AC Loss Characteristics and Permit-tivity(Dielectric Constant)of Solid Electrical InsulationD618 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of PlasticsD792 Test Methods for Density and Specific Gravity(Rela-tive Density)of Plastics by Displac
8、ementD883 Terminology Relating to PlasticsD1238 Test Method for Melt Flow Rates of Thermoplasticsby Extrusion PlastometerD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD3418 Test Method for Transition Temperatures and En-thalpies of Fusion and Crystallization of Polymers byDifferential
9、Scanning CalorimetryD3892 Practice for Packaging/Packing of PlasticsE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsIEEE/ASTM SI-10 Use of the International System of Units(SI):The Modem Metric System2.2 ISO Standards:3ISO 20568-1 PlasticsFluoropolymer Dispersions andMouldin
10、g and Extrusion MaterialsPart 1ISO 20568-2 PlasticsFluoropolymer Dispersions andMoulding and Extrusion MaterialsPart 23.Terminology3.1 GeneralThe terminology given in Terminology D883is applicable to this specification.3.2 Definitions:3.2.1 lot,none production run or a uniform blend of twoor more pr
11、oduction runs.3.3 GeneralThe abbreviated terms given in TerminologyD1600 are applicable to this specification.4.Classification4.1 This specification covers two types of fluoropolymersupplied in pellet form classified according to their meltingpoints.The resins of each type are divided into one to tw
12、ogrades in accordance with their melt flow rate.4.2 An one-line system shall be used to specify materialscovered by this specification.The system uses predefined cellsto refer to specific aspects of this specification,as illustrated asfollows:1This specification is under the jurisdiction of ASTM Com
13、mittee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved May 1,2019.Published June 2019.Originallyapproved in 2009.Last previous edition approved in 2014 as D7472 09(2014).DOI:10.1520/D7472-19.2For referenced ASTM standards,visi
14、t 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.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036
15、,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 accordance with internationally recognized principles on stand
16、ardization 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 Specification _Standard Number:Type:Grade:SpecialBlock:Notes:,:Example:Specification D7472-09,I2For this example,the line callout shall be,SpecificationD7472 09,I2 and shall specify a fluoropolymer that has all ofthe properties listed for that type and grade in the appropriatespecified prop
