ASTM_D_6585_-_11.pdf

Designation:D658511Standard Specification forUnsintered Polytetrafluoroethylene(PTFE)Extruded Film orTape1This standard is issued under the fixed designation D6585;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.1.Scope*1.1 This specification covers unsintered extruded films ortapesmanufacturedfromvirgin,unpigmentedpolytetrafluoroethylene,in nominal thickness from 0.025 to0.51 mm(0.001 to 0.020 in.),which are 99%PTFE incomposition.NOTE1For unsintered pigmented products,refer to SpecificationD7193.1.1.1 The use of recycled PTFE for production of unsinteredextruded films or tapes has not been identified at this time.When commercial usable processes and materials areavailable,this specification will be revised to include recycledmaterials.1.2 The values stated in SI units are detailed in IEEE/ASTMSI-10 are to be regarded as the standard.The values given inparentheses are for information only.1.3 The following precautionary statement pertains only tothe test method portion,Section 8 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 safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.NOTE2Although this specification and ISO/DIS 13000-1 and ISO/DIS 13000-2 differ in approach or detail,data obtained relating to specificproperties,using either are technically equivalent.2.Referenced Documents2.1 ASTM Standards:2D149 Test Method for Dielectric Breakdown Voltage andDielectric Strength of Solid Electrical Insulating Materialsat Commercial Power FrequenciesD150 Test Methods for AC Loss Characteristics and Permit-tivity(Dielectric Constant)of Solid Electrical InsulationD257 Test Methods for DC Resistance or Conductance ofInsulating MaterialsD618 Practice for Conditioning Plastics for TestingD882 Test Method for Tensile Properties of Thin PlasticSheetingD883 Terminology Relating to PlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD1711 Terminology Relating to Electrical InsulationD3892 Practice for Packaging/Packing of PlasticsD6040 Guide to Test Methods for Unsintered Polytetrafluo-roethylene(PTFE)Extruded Film or TapeD7193 Specification for Unsintered Pigmented Polytetra-fluoroethylene(PTFE)Extruded Film or TapeE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsIEEE/ASTM SI-10 Standard for Use of the InternationalSystem of Units(SI):The Modern Metric System2.2 ISO Standard:3ISO 13000-1 PlasticsPolytetrafluoroethylene(PTFE)Semi-Finished ProductsPart 1:Requirements and Des-ignationISO 13000-2 PlasticsPolytetrafluoroethylene(PTFE)Semi-Finished ProductsPart 2:Preparation of TestSpecimens and Determination of Properties Designation2.3 GSA Standard:A-A-58092 Tape,Anti-seize,Polytetrafluorethylene4NOTE3Supersedes MIL-T-27730A(ASG)7 January 1997.3.Terminology3.1 Definitions:Definitions are in accordance with Termi-nology D1711,Terminology D883,and Test Method D257 andabbreviated terms are in accordance with Terminology D1600,unless otherwise specified.1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved Feb.1,2011.Published February 2011.Originallyapproved in 2000.Last previous edition approved in 2005 as D6585-05.DOI:10.1520/D6585-11.2For 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.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036.4A-A-58092 can be obtained from General Services Administration,Engineer-ing and Commodity Management Division(9FTE-10),400 15thSt.SW,Auburn,WA 98001.*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 3.1.1 lot,none production run or a uniform blend of twoor more production runs.3.2 Definitions of Terms Specific to This Standard:3.2.1 film,nfull width material received as finished film.3.2.2 tape,nmaterial that has been slit from the finishedfilm.3.2.3 tensile strength at yield,nfrom Test Methods D882.4.Classification4.1 This specification covers three types of unsinteredextruded PTFE tapes:4.1.1 Type IThread seal tape(T.S.T.)with an apparentdensity of 0.50 to 1.60 g/cm3.4.1.2 Type IILow density tape with an apparent density of0.60 to 0.80 g/cm3.4.1.3 Type IIIWire and cable tape with an apparent densityof 1.50 to 1.70