1、Designation:D143022Standard Classification System forPolychlorotrifluoroethylene(PCTFE)Plastics1This standard is issued under the fixed designation D1430;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This classification system covers polychlorotrifluoroeth
3、-ylene(PCTFE)plastics that consist of at least 90%chlorotri-fluoroethylene and are suitable for extrusion and for compres-sion and injection molding.Additional components allow forchemical modifications,such as co-monomers,but notcolorants,fillers,plasticizers,or mechanical blends with otherresins.T
4、his classification system does not cover recycledPCTFE materials.1.2 The physical and electrical properties of parts molded orextruded from PCTFE molding compounds vary with thecrystalline content obtained during processing and subsequentannealing.Accordingly,the numerical values listed in Table 1ap
5、ply only to the test specimens molded in accordance withSection 8.These values are not applicable as design criteria tosemi-finished and finished parts prepared and annealed underother conditions.1.3 The values stated in SI units as detailed in IEEE/SI-10are to be regarded as the standard.The values
6、 given inparentheses are for information only.1.4 The following precautionary statement pertains only tothe test methods portion,Section 10,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 u
7、ser of this standard 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 aretechnica
8、lly equivalent.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 Standards,Guides and Recom-mendations issued by the World Trade Organization Techni
9、calBarriers to Trade(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 TestingD621 Test Methods for Deformation of Plastics Under Load(W
10、ithdrawn 1994)3D792 Test Methods for Density and Specific Gravity(Rela-tive Density)of Plastics by DisplacementD883 Terminology Relating to PlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD3418 Test Method for Transition Temperatures and En-thalpies of Fusion and Crystallization
11、of Polymers byDifferential Scanning CalorimetryD3892 Practice for Packaging/Packing of PlasticsD4591 Test Method for Determining Temperatures andHeats of Transitions of Fluoropolymers by DifferentialScanning CalorimetryD4895 Specification for Polytetrafluoroethylene(PTFE)Resin Produced From Dispersi
12、onD7194 Specification for Aerospace Parts Machined fromPolychlorotrifluoroethylene(PCTFE)D7211 Specification for Parts Machined from Polychlorotri-fluoroethylene(PCTFE)and Intended for General UseIEEE/SI-10 Standard for Use of the International System ofUnits(SI):The Modern Metric System2.2 ISO Stan
13、dard:4ISO 20568-1 PlasticsFluoropolymer Dispersions andMoulding and Extrusion Materials,Part 1ISO 20568-2 PlasticsFluoropolymer Dispersions andMoulding and Extrusion Materials,Part 21This classification system is under the jurisdiction ofASTM Committee D20 onPlastics and is the direct responsibility
14、 of Subcommittee D20.15 on ThermoplasticMaterials(Section D20.15.12).Current edition approved March 15,2022.Published March 2022.Originallyapproved in 1956.Last previous edition approved in 2017 as D1430 17.DOI:10.1520/D1430-22.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcon
15、tact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards 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 American National Standards Institute(
16、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 accordance 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 O