1、Designation: D7193 17Standard 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
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 specification covers unsintered, pigmented, ex-truded films or tapes manufactured frompolytetrafluoroeth
3、ylene, in nominal thicknesses from 0.025mm (0.001 in.) to 0.51 mm (0.020 in.), which are 99 % virginPTFE in composition prior to introducing pigments.NOTE 1For unsintered non-pigmented products refer to SpecificationD6585.1.1.1 The use of recycled PTFE for production of unsinteredextruded films or t
4、apes 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 a
5、re for information only.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 safety, health and environmental practices and deter-mine the applicability of regulatory l
6、imitations prior to use.NOTE 2Although this specification and ISO 13000-1 (1997) andISO 13000-2 (1997) differ in approach or detail, data obtained relating tospecific properties, using either are technically equivalent.NOTE 3This specification is intended to be a complement to Speci-fication D6585,
7、as the materials covered herein vary significantly enoughdue to their additives to warrant a stand-alone set of requirements.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDe
8、velopment of International Standards, Guides 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 Mater
9、ialsat 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 Tens
10、ile 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 Standard Test Methods for UnsinteredPolytetrafluoro
11、ethylene (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
12、Modern Metric System2.2 ISO Standards: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 Properties2.3 GSA Stan
13、dard:4A-A-58092 Tape, Anti-Seize Polytetrafluoroethylene1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved Sept. 1, 2017. Published September 2017. Originallyapprove
14、d in 2005. Last previous edition approved in 2011 as D7193 - 11. DOI:10.1520/D7193-17.2For 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
15、 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
16、 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
17、 the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.13. Terminology3.1 DefinitionDefinitions are in accordance with Termi-nologies D883, D1711, and Test Methods D257;
18、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 runs3.3 Definitions of Terms Specific to This Standard:3.3.1 film, nfull width material received as finished film.3.3.2 tape, nmaterial
19、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:
20、4.1.1 Type IThread Seal Tape (TST) with an apparentdensity of 0.50-1.60 g/cm3.4.1.2 Type IILow Density Tape with an apparent densityof 0.60-0.80 g/cm3.4.1.3 Type IIIWire and Cable Tape with an apparentdensity of 1.40-1.65 g/cm3.NOTE 4Other products that do not fall into these density ranges areavail
21、able. The values vary on these products and must be agreed tobetween supplier and purchaser.4.2 Grades of tape are identified in Tables 1-3.NOTE 5Other products that do not fall into these ranges are available.4.3 A line callout system is used to specify materials in thisspecification. The system us
22、es pre-defined cells to refer tospecific aspects of this specification, as illustrated below:StandardNumberBlockType SpecificationGradeClass SpecialNotesASTMD7193III 2 mil - Color to beRoyal BlueFor this example, the line call-out would be: ASTM D7193,III, 2 MIL, Color to be Royal Blue, that specifi
23、es an unsinteredwire and cable tape, 2 mil thick, having all of the propertieslisted for that type and grade in the appropriate specifiedproperties, tables, or both, in the specification identified. Acomma is used as the separator between the standard numberand the type. Separators are not needed be
24、tween the type andgrade because they are, in turn, Roman numerals and Arabicdigits as provided in Section B8. of the Form & Style for ASTMStandards,April 2004 Edition. Provision for “Special Notes” isincluded so that other information can be provided whenrequired. This example relates to wire and ca
25、ble tape with theadded requirement that it be royal blue in color. When specialnotes are used, they shall be preceded by a comma.5. Performance Requirements5.1 Basic requirements from the property tables are alwaysin effect unless superseded by specific suffix requirements,which always take preceden
26、ce.5.2 The materials shall conform to the requirements inTables 1-4 and suffix requirements as they apply.5.3 The dielectric breakdown strength of unsintered samplesshall be tested in accordance with Test Method D149. Therequired values are to be agreed upon between producer andconsumer.5.4 If invok
27、ed by contract, or to gain understanding of theelectrical performance consistency of a particular materialdielectric constant and volume resistivity shall be tested inaccordance with Test Methods D150 and D257, as seen in theguidelines found in Guide D6040.5.5 The width tolerance of slit tape shall
28、be in accordancewith Table 4 unless otherwise specified by contract.6. Sampling6.1 Sampling shall be in accordance with an adequatestatistical sampling procedure.7. Conditioning7.1 For those tests where conditioning is required, conditionthe test specimens in accordance with Procedure A of PracticeD
29、618, except the time shall be for a period of at least 4 h priorto test instead of the 40 h required by this method. If the testmaterial has been exposed to temperatures below 20C (68F)within a 24 h period prior to test, the conditioning shall be atleast 24 h.7.2 Conduct tests at the standard labora
30、tory temperature of23 6 2C (73.4 6 3F). The maintenance of constant humidityis not necessary. In reference cases, the standard atmosphereand 50 6 5 % relative humidity shall apply.8. Test Methods8.1 The properties enumerated in this specification shall bedetermined in accordance with test methods re
31、ferenced inSection 2. (For example, see Test Methods D6040.)TABLE 1 TYPE I Thread Seal Tape with an Apparent Density of 0.50 to 1.60 g/cm3NOTE 1Where no property is listed, there is no requirement.Grade Apparent Density, g/cm3Thickness Tensile Strength at Yield Elongation atMaximumStrengthMin Max mm
32、 Tol (in.) Tol MPa psi Min percentEconomy 0.50 0.90 0.076 0.0030Standard 0.80 1.10 0.076 0.0127 0.0030 0.0005 50Mil Spec.A-A-58092 1.20 0.088 +0.0254-0.03810.0035 +0.0010-0.001540Premium 1.20 1.60 0.076 0.0127 0.0030 0.0005 11.72 1700 75D7193 1728.1.1 The number of samples shall be consistent with t
33、herequirements of Section 6.8.1.2 One set of test specimens shall be considered sufficientfor testing each lot. The average result of the specimens shallconform to the requirements of this specification.9. Inspection and Certification9.1 Inspection and certification of the material supplied withrefe
34、rence to a specification based on this classification systemshall be for conformance to the requirements specified herein.9.2 Lot-acceptance inspection shall be the basis on whichacceptance or rejection of the lot is made.9.3 Periodic check inspection with reference to a specifica-tion based upon th
35、is classification system shall consist of thetests for all requirements of the material under the specifica-tion. Inspection frequency shall be adequate to ensure thematerial is certifiable in accordance with 9.4.9.4 Certification shall be that the material was manufacturedby a process in statistica
36、l control, sampled, tested, and in-spected in accordance with this classification system, and thatthe average values for the lot meet the requirements of thespecification.9.5 A report of test results shall be furnished when re-quested. The report shall consist of results of the lot-acceptanceinspect
37、ion for the shipment and the results of the most recentperiodic-check inspection.10. Packaging and Package Marking10.1 PackagingThe materials shall be packaged in stan-dard commercial containers constructed so as to ensure accep-tance by common carrier unless otherwise specified in thecontract or or
38、der.10.2 Package MarkingShipping containers shall bemarked with the name of the material, type, thickness, andTABLE 2 Type II Low Density Tape with an Apparent Density of 0.60 to 0.80 g/cm3Grade Apparent Density, g/cm3Thickness Tensile Strength at Yield Elongation atMaximumStrengthMin Max mm Tol (in
39、.) Tol MPa psi Min percent4 Mil 0.60 0.80 0.102 0.0076 0.004 0.0003 13.10 1900 405 Mil 0.60 0.80 0.127 0.0102 0.005 0.0004 13.10 1900 4010 Mil 0.60 0.80 0.254 0.0127 0.010 0.0005 8.27 1200 40TABLE 3 Type III Wire and Cable Tape with an Apparent Density of 1.40 to 1.65 g/cm3NOTE 1In cases where actua
40、l product thickness is between thickness values called out in this table, the actual thickness shall be rounded to the nearestdefined increment using guidelines found in Practice E29, and the corresponding requirements applied.Grade Apparent Density, g/cm3Thickness Tensile Strength at Yield Elongati
41、on atMaximumStrengthMin Max mm Tol (in.) Tol MPa psi Min percent2 Mil 1.4 1.65 0.050 0.0076 0.002 0.0003 12.41 1800 253 Mil 1.4 1.65 0.076 0.0076 0.003 0.0003 11.03 1600 254 Mil 1.4 1.65 0.102 0.0076 0.004 0.0003 10.34 1500 255 Mil 1.4 1.65 0.127 0.0076 0.005 0.0003 9.65 1400 256 Mil 1.4 1.65 0.152
42、0.0102 0.006 0.0004 7.58 1100 257 Mil 1.4 1.65 0.178 0.0102 0.007 0.0004 6.89 1000 258 Mil 1.4 1.65 0.203 0.0102 0.008 0.0004 6.21 900 259 Mil 1.4 1.65 0.229 0.0102 0.009 0.0004 5.52 800 2510 Mil 1.4 1.65 0.254 0.0127 0.010 0.0005 4.83 700 5011 Mil 1.4 1.65 0.279 0.0152 0.011 0.0006 4.48 650 5012 Mi
43、l 1.4 1.65 0.305 0.0229 0.012 0.0009 4.14 600 5013 Mil 1.4 1.65 0.330 0.0279 0.013 0.0011 3.79 550 5014 Mil 1.4 1.65 0.356 0.0330 0.014 0.0013 3.10 450 5015 Mil 1.4 1.65 0.381 0.0381 0.015 0.0015 2.76 400 5016 Mil 1.4 1.65 0.406 0.0406 0.016 0.0016 2.76 400 5017 Mil 1.4 1.65 0.432 0.0432 0.017 0.001
44、7 2.76 400 5018 Mil 1.4 1.65 0.457 0.0457 0.018 0.0018 2.76 400 5019 Mil 1.4 1.65 0.483 0.0483 0.019 0.0019 2.76 400 5020 Mil 1.4 1.65 0.508 0.0508 0.020 0.0020 2.76 400 50TABLE 4 Width TolerancesWidth (mm) Tolerance (mm) Width (in.) Tolerance (in.)Below 6.35 0.38 Below14 0.015Between 6.35 and 25.4
45、0.51 Between14 and 1 0.020Between 25.4 and 50.8 0.64 Between 1 and 2 0.025Between 50.8 and 76.2 0.89 Between 2 and 3 0.035Between 76.2 and 152.4 1.91 Between 3 and 6 0.075Between 152.4 and 304.8 3.18 Between 6 and 12 0.125Greater than 304.8 6.35 Greater than 12 0.250D7193 173quantity contained there
46、in. Each roll or package shall bemarked to designate type, lot number, and manufacturersname.10.3 All packaging and marking provisions of PracticeD3892 shall apply to this specification.11. Keywords11.1 apparent density; elongation; extruded; film; fluorocar-bon film; pigmented; PTFE; PTFE tape; tap
47、e; tensile; threadseal tape; unsinteredSUMMARY OF CHANGESCommittee D20 has identified the location of selected changes to this standard since the last issue (D7193 - 11)that may impact the use of this standard. (September 1, 2017)(1) Updated Note 2.(2) Section 1.1: Corrected resin pre-pigment compos
48、ition ofPTFE from 97% to 99%(3) Harmonized format and verbiage to match D6585 byadding note numbering for notes and locating in similarsections of the standard, removing previous identifier.ASTM International takes no position respecting the validity of any patent rights asserted in connection with
49、any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for addit
