1、Designation:D604018Standard Guide toStandard Test Methods for UnsinteredPolytetrafluoroethylene(PTFE)Extruded Film or Tape1This standard is issued under the fixed designation D6040;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the
2、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 guide identifies test methods to use in evaluatingunsintered extruded films or tapes manufactured from polyte
3、t-rafluoroethylene.1.2 The values stated in SI units as detailed in IEEE/ASTMSI 10,are to be regarded as standard.1.3 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 safe
4、ty,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.NOTE1This test method is equivalent to ISO 12086-2:2006 in themeasurement of tensile properties,specific gravity,and dielectric constant.These are in ISO 12086-2:2006,sections 8.2.2,10.6 and
5、 8.1.1.It is notequivalent to ISO 12086-2:2006 in any other measurement or section.1.4 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,Guide
6、s and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D149 Test Method for Dielectric Breakdown Voltage andDielectric Strength of Solid Electrical Insulating Materialsat Commercial Power FrequenciesD150 Test M
7、ethods for AC Loss Characteristics and Permit-tivity(Dielectric Constant)of Solid Electrical InsulationD257 Test Methods for DC Resistance or Conductance ofInsulating MaterialsD374/D374M Test Methods for Thickness of Solid Electri-cal InsulationD792 Test Methods for Density and Specific Gravity(Rela
8、-tive Density)of Plastics by DisplacementD882 Test Method for Tensile Properties of Thin PlasticSheetingD883 Terminology Relating to PlasticsD1711 Terminology Relating to Electrical InsulationD3776/D3776M Test Methods for Mass Per Unit Area(Weight)of FabricF335 Terminology Relating to Electrostatic
9、Imaging(With-drawn 2017)3F412 Terminology Relating to Plastic Piping SystemsIEEE/ASTM SI 10 Standard for Use of the InternationalSystem of Units(SI):The Modern Metric System2.2 ISO Standard:ISO 12086-2:2006 PlasticsFluoropolymer Dispersionsand Moulding and Extrusion MaterialsPart 2:Prepara-tion of T
10、est Specimens and Determination of Properties43.Terminology3.1 Definitions:3.1.1 Definitions are in accordance with Test Methods D257and Terminologies D883 and D1711,unless otherwise speci-fied.3.1.2 apparent density,nthe weight per unit volume of amaterial including voids inherent in the material a
11、s tested,seeTerminology F412.3.1.3 lot,none production run,or uniform blend of two ormore 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.4.Test Specimens4.1 The
12、 number of test specimens shall be in accordancewith the requirements of the individual test methods.1This guide is under the jurisdiction of ASTM Committee D20 on Plastics andis the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials.Current edition approved Dec.1,2018.Published
13、 December 2018.Originallyapproved in 1996.Last previous edition approved in 2012 as D6040-12.DOI:10.1520/D6040-18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the sta
14、ndards 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 en
15、d 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 theDevelop
16、ment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 5.Conditioning5.1 Condition the tape for 4 h and conduct tests at thestandard laboratory temperature of 23 6 2C(73.4 6 3.6F),unless otherwise specified in the test methods or required in aspecification.Since the tape or film does not absorb water,themaintenance of constant humidity during testing is not impor-tant.6.Width6.1 Determine width measurements us
