1、Designation:D747209(Reapproved 2014)Standard 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 la
2、st revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers melt processible molding andextrusion materials of EFEP-fluoropolymer.The EFEP resin isa copolymer
3、of ethylene,tetrafluoroethylene,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
4、only.1.4 The following 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 safet
5、y and healthpractices and determine the applicability of regulatory limita-tions prior to use.NOTE1AlthoughthisspecificationandISO 12086-1andISO 12086-2 differ in approach or detail,data obtained using either aretechnically equivalent.2.Referenced Documents2.1 ASTM Standards:2D150 Test Methods for A
6、C 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 DisplacementD883 Termin
7、ology 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 Scanning Calorim
8、etryD3892 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 12086-1 PlasticsFluoropolymer Dispersions andMoulding and Extrusion
9、MaterialsPart 1ISO 12086-2 PlasticsFluoropolymer Dispersions andMoulding and Extrusion MaterialsPart 23.Terminology3.1 GeneralThe terminology given in Terminology D883is applicable to this specification.3.2 Definitions:3.3 lot,none production run or a uniform blend of two ormore production runs.3.4
10、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 twogrades in accorda
11、nce 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:Specification _Standard Number:Type:Grade:SpecialBlock:Notes:,:Example:Spec
12、ification 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 appropriate1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct r
13、esponsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved March 1,2014.Published March 2014.Originallyapproved in 2009.Last previous edition approved in 2009 as D7472 09.DOI:10.1520/D7472-09R14.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact
14、 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,http:/www.ansi.org.Copyright ASTM Intern
15、ational,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 specified properties,or tables,or both,in the specificationidentified.A comma is used as the separator between thestandard number and the type.Separators are not neededbetween the type and grade.45.General Requi
16、rements5.1 The material shall be of uniform composition and soprepared as to conform to the requirements of this specifica-tion.5.2 The material described in this specification shall be freeof foreign matter to such a contamination level as shall beagreed upon between the purchaser and the seller.6.Performance Requirements6.1The average test result of the lot shall conform to therequirements prescribed in Tables 1 and 2 when tested by theprocedures specified herein.Table 2 lists those tests requ
