1、Designation:D327518Standard Classification System forE-CTFE-Fluoroplastic Molding,Extrusion,and CoatingMaterials1This standard is issued under the fixed designation D3275;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This classification system covers melt
3、processiblemolding,extrusion,and coating materials of ethylene-chlorotrifluoroethylene(E-CTFE)fluoroplastics.The resin is acopolymer of ethylene and chlorotrifluoroethylene containingapproximately 80 weight%of chlorotrifluoroethylene.1.2 The values stated in SI units,as detailed in IEEE/ASTM SI-10,a
4、re to be regarded as standard.1.3 The following precautionary statement pertains only tothe test methods portion,Section 11 of this classificationsystem.This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this stan
5、dard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.NOTE1Although this classification system and ISO 20568-1 andISO 20568-2 differ in approach or detail,data obtained using either aretechnically equivalent.1
6、.4 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 Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to T
7、rade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D150 Test 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 D
8、ensity and Specific Gravity(Rela-tive Density)of Plastics by DisplacementD883 Terminology Relating to PlasticsD1238 Test Method for Melt Flow Rates of Thermoplasticsby Extrusion PlastometerD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD1708 Test Method for Tensile Properties of Plastic
9、s by Useof Microtensile SpecimensD2863 Test Method for Measuring the Minimum OxygenConcentration to Support Candle-Like Combustion ofPlastics(Oxygen Index)D3892 Practice for Packaging/Packing of PlasticsD4591 Test Method for Determining Temperatures andHeats of Transitions of Fluoropolymers by Diffe
10、rentialScanning CalorimetryIEEE/ASTM SI-10 Use of the International System of Units(SI):The Modern Metric System2.2 ISO Standards:3ISO 20568-1 PlasticsFluoropolymer Dispersion andMoulding and Extrusion MaterialsPart 1:Designationand Basis for SpecificationISO 20568-2 PlasticsFluoropolymer Dispersion
11、 andMoulding and Extrusion MaterialsPart 2:Preparation ofTest Specimens and Determination of Properties3.Terminology3.1 Definitions:3.1.1 Definitions of terms used in this classification systemshall be in accordance with Terminology D883.3.1.2 lot,none production run or a uniform blend of twoor more
12、 production runs.3.2 Abbreviations:3.2.1 Abbreviations are in accordance with TerminologyD1600.1This classification system is under the jurisdiction ofASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterialsCurrent edition approved Nov.1,2018.Pu
13、blished November 2018.Originallyapproved in 1973.Last previous edition approved in 2013 as D3275-08(2013).DOI:10.1520/D3275-18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,ref
14、er 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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO
15、 Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by th
16、e World Trade Organization Technical Barriers to Trade(TBT)Committee.1 4.Classification4.1 ECTFE materials are classified into groups in accor-dance with their physical appearance.The groups are furtherdivided into classes based on melt flow rate.These classes aresubdivided into grades as shown in the Table E-CTFE.Anexample of a material of this classification system is given asfollows:ECTFE 01 1 1TABLE ECTFEGroupClassDescriptionGradeMelt FlowRate,A,Bg/10 minSpecificGravity,C23/23CTensileStrengt
