ASTM_D_1430_-_11.pdf

Designation:D143011Standard 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 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 polychlorotrifluoroeth-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.This 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 1apply 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 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 user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.NOTE1Although this classification system and ISO 12086-1(1995)and ISO 12086-2(1995)differ in approach or detail,data obtained usingeither are technically equivalent.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InsulationD618 Practice for Conditioning Plastics for TestingD621 Test Methods for Deformation of Plastics Under Load(Withdrawn 1994)3D792 Test Methods for Density and Specific Gravity(Rela-tive Density)of Plastics by DisplacementD883 Terminology Relating to PlasticsD1600 Terminology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 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 DispersionD7194 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 Standard:4ISO 12086-1(1995)PlasticsFluoropolymer Dispersionsand Moulding and Extrusion Materials,Part 11This classification system is under the jurisdiction ofASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials(Section D20.15.12).Current edition approved April 1,2011.Published April 2011.Originallyapproved in 1956.Last previous edition approved in 2010 as D1430 10.DOI:10.1520/D1430-11.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,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(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 States1 ISO 12086-2(1995)PlasticsFluoropolymer Dispersionsand Moulding and Extrusion Materials,Part 23.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 uniform blend of two ormore production runs.D48953.2 Definitions of Terms Specific to This Standard:3.2.1 preforming,na process to compress the materialunder pressure in a mold to form a preform.3.2.2 zero strength time(ZST),ntime measured in accor-dance with Section 10 of this classification system to check therelative molecular weight of PCTFE material.3.3 Abbreviations:3.3.1 Abbreviated terms are i