1、Designation:D 6314 98Standard Specification forFluorocarbon Perfluoromethoxy(MFA)Resin Molding andExtrusion Materials1This standard is issued under the fixed designation D 6314;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year
2、 of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers melt processible molding andextrusion materials that are copolymers of tetrafluoroethylene(T
3、FE)containing perfluoroalkoxy side chains.These sidechains are predominately perfluoromethoxy(MFA)chainsderived from perfluoro(methyl vinyl ether)and may containperfluoroalkoxy groups from other perfluoro(vinyl ethers).1.2 This specification does not cover recycled plastics.1.3 The tests involved ar
4、e intended to provide informationfor identifying the materials covered.It is not the function ofthis specification to provide engineering data for design pur-poses.Specimens prepared by injection molding or extrusioncould yield test results that may vary from the values in thisspecification.1.4 The
5、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.1.5 The following safety hazards caveat pertains only to thetest methods portion,Section 9,of this specification:Thisstandard does not purport to address
6、 all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.NOTE1The materials of this specification can be designated andsp
7、ecified according to the system of ISO 12086-1 and the test methods ofISO 12086-2.Details are provided in Appendix X1.2.Referenced Documents2.1 ASTM Standards:D 150 Test Methods for A-C Loss Characteristics andPermittivity(Dielectric Constant)of Solid Electrical Insu-lating Materials2D 618 Practice
8、for Conditioning Plastics and ElectricalInsulating Materials for Testing3D 638M Test Method for Tensile Properties of PlasticsMetric3D 792 Test Methods for Specific Gravity(Relative Density)of Plastics by Displacement3D 883 Terminology Relating to Plastics3D 1238 Test Method for Flow Rates of Thermo
9、plastics byExtrusion Plastometer3D 1505 Test Method for Density of Plastics by the Density-Gradient Technique3D 1600 Terminology for Abbreviated Terms Relating toPlastics3D 2116 Specification for FEP-Fluorocarbon Molding andExtrusion Materials3D 3307 Specification for PFA-Fluorocarbon Molding andExt
10、rusion Materials4D 3892 Practice for Packaging/Packing of Plastics4D 4591 Test Methods for Determining Temperatures andHeats of Transitions of Fluoropolymers by DifferentialScanning Calorimetry5D 4895 Specification for Polytetrafluoroethylene(PTFE)Resins Produced from Dispersion5E 177 Practice for U
11、se of the Terms Precision and Bias inASTM Test Methods62.2IEEE/ASTM Standard:IEEE/ASTM SI 10 Standard for the Use of the InternationalSystem of Units(SI):The Modern Metric System62.3ISO Standards:ISO 12086-1:1995 PlasticsFluoropolymer DispersionsandMouldingandExtrusionMaterials,Part1-Designation Sys
12、tem and Basis for Specifications7ISO 12086-2:1995 PlasticsFluoropolymer Dispersionsand Moulding and Extrusion Materials,Part 2-Preparationof Test Specimens and Determination of Properties73.Terminology3.1 DefinitionsDefinitions of terms used in this specifica-tion shall be in accordance with Termino
13、logy D 883.3.2 Definitions of Terms Specific to This Standard:3.2.1 lot,none production run or a uniform blend of twoor more production runs.3.2.2 MFAa copolymer of tetrafluoroethylene and one ormore perfluoro(alkyl vinyl ethers)in which perfluoro(methyl1This specification is under the jurisdiction
14、of ASTM Committee D-20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved Aug.10,1998.Published February 1999.2Annual Book of ASTM Standards,Vol 10.01.3Annual Book of ASTM Standards,Vol 08.01.4Annual Book of ASTM Standards,Vol 08.02.
15、5Annual Book of ASTM Standards,Vol 08.03.6Annual Book of ASTM Standards,Vol 14.02.7Available from American National Standards Institute,11 W.42nd St.,13thFloor,New York,NY 10036.1AMERICAN SOCIETY FOR TESTING AND MATERIALS100 Barr Harbor Dr.,West Conshohocken,PA 19428Reprinted from the Annual Book of
16、 ASTM Standards.Copyright ASTMNOTICE:This standard has either been superseded and replaced by a new version or discontinued.Contact ASTM International(www.astm.org)for the latest information.vinyl ether)is the predominant perfluoro(alkyl vinyl ether).3.2.2.1 DiscussionThe term perfluoro(alkyl vinyl ether)defined as PFA in Terminology D 1600 includes perfluoro(m-ethyl vinyl).To prevent confusion with the higher melting PFAmaterials covered in Specification D 3307,the abbreviatedterm,MFA,and the d
