ASTM_D_7193_-_11.pdf

Designation:D719311Standard Specification forUnsintered Pigmented Polytetrafluoroethylene(PTFE)Extruded Film or Tape1This standard is issued under the fixed designation D7193;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,pigmented,ex-trudedfilmsortapesmanufacturedfrompolytetrafluoroethylene,in nominal thicknesses from 0.025mm(0.001 in.)to 0.51 mm(0.020 in.),which are 97%virginPTFE in composition prior to introducing pigments.NOTE1For unsintered non-pigmented products refer to SpecificationD6585.1.1.1 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 This standard does not purport to address all of thesafety problems associated with its use.It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.NOTE2Although this specification and ISO/DIS 13000-1(1997)andISO/DIS 13000-2(1997)differ in approach or detail,data obtainedrelating to specific properties,using either are technically equivalent.NOTE3This specification is intended to be a complement to Speci-fication D6585,as the materials covered herein vary significantly enoughdue to their additives to warrant a stand-alone set of requirements.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 TapeD6585 Specification for Unsintered Polytetrafluoroethylene(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 Standards:3ISO/DIS 13000-1 PlasticsPolytetrafluoroethylene(PTFE)Semi-Finished ProductsPart 1:Requirements and Des-ignationISO/DIS 13000-2 PlasticsPolytetrafluoroethylene(PTFE)Semi-Finished ProductsPart 2:Preparation of TestSpecimens and Determination of Properties2.3 GSA Standard:4A-A-58092 Tape,Anti-Seize Polytetrafluoroethylene3.Terminology3.1 DefinitionDefinitions are in accordance with Termi-nologies D883,D1711,and Test Methods D257;and abbrevi-ated terms are in accordance with Terminology D1600,unlessotherwise specified.3.2 lot,none production run or a uniform blend of two ormore production runs1This 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 2005.Last previous edition approved in 2005 as D7193-05.DOI:10.1520/D7193-11.2For 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,http:/www.ansi.org.4Available from General Services Administration,Engineering and CommodityManagement Division(9FTE-10),400 15th St.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 3.3 Definitions of Terms Specific to This Standard:3.3.1 film,nfull width material received as finished film.3.3.2 tape,nmaterial that has been slit from the finishedfilm.3.3.3 tensile strength at yield,nfrom Test Methods D882.3.3.4 pigmentliquid or dry matter used as an additive,toalter the color of finished film or tape.4.Classification4.1 This specification covers three types of unsintered,pigmented,extruded PTFE tapes:4.1.1 Type IThread Seal Tape(TST)with an apparentdens