1、Designation: D7193 11D7193 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 revisi
2、on, 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, extruded films or tapes manufactured from polytetraf
3、luoroethylene, innominal thicknesses from 0.025 mm (0.001 in.) to 0.51 mm (0.020 in.), which are 97 %99 % virgin PTFE in composition priorto introducing pigments.NOTE 1For unsintered non-pigmented products refer to Specification D6585.1.1.1 The use of recycled PTFE for production of unsintered extru
4、ded films or tapes has not been identified at this time. Whencommercial usable processes and materials are available, this specification will be revised to include recycled materials.1.2 The values stated in SI units are detailed in IEEE/ASTM SI-10 are to be regarded as the standard. The values give
5、n inparentheses are for information only.1.3 This standard does not purport to address all of the safety problems concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appropriate safety safety, health and healthenvironmental practices anddeterm
6、ine the applicability of regulatory limitations prior to use.NOTE 2Although this specification and ISO/DIS 13000-1ISO 13000-1 (1997) and ISO/DIS 13000-2ISO 13000-2 (1997) differ in approach or detail,data obtained relating to specific properties, using either are technically equivalent.NOTE 3This sp
7、ecification is intended to be a complement to Specification D6585, as the materials covered herein vary significantly enough due totheir additives to warrant a stand-alone set of requirements.1.4 This international standard was developed in accordance with internationally recognized principles on st
8、andardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D149 Test Method for Dielectric Breakdown Vol
9、tage and Dielectric Strength of Solid Electrical Insulating Materials atCommercial Power FrequenciesD150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical InsulationD257 Test Methods for DC Resistance or Conductance of Insulating MaterialsD618 Practi
10、ce for Conditioning Plastics for TestingD882 Test Method for Tensile Properties of Thin Plastic SheetingD883 Terminology Relating to PlasticsD1600 Terminology for Abbreviated Terms Relating to PlasticsD1711 Terminology Relating to Electrical InsulationD3892 Practice for Packaging/Packing of Plastics
11、D6040 Guide to Standard Test Methods for Unsintered Polytetrafluoroethylene (PTFE) Extruded Film or TapeD6585 Specification for Unsintered Polytetrafluoroethylene (PTFE) Extruded Film or TapeE29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsIEEE/ASTM
12、SI-10 Standard for Use of the International System of Units (SI): The Modern Metric System1 This specification is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials.Current edition approved Feb. 1, 2011Sept. 1,
13、2017. Published February 2011September 2017. Originally approved in 2005. Last previous edition approved in 20052011as D7193 - 05.D7193 - 11. DOI: 10.1520/D7193-11.10.1520/D7193-17.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org
14、. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit m
15、ay not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at t
16、he end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States12.2 ISO Standards:3ISO/DIS 13000-1ISO 13000-1 PlasticsPolytetrafluoroethylene (PTFE) Semi-Finished ProductsPart 1: Requirements andDesignationISO/DIS 13000-2ISO 13
17、000-2 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 Terminologies D883, D1711, and Tes
18、t Methods D257; and abbreviated termsare in accordance with Terminology D1600, unless otherwise specified.3.2 lot, none production run or a uniform blend of two or more production runs3.3 Definitions of Terms Specific to This Standard:3.3.1 film, nfull width material received as finished film.3.3.2
19、tape, nmaterial that has been slit from the finished film.3.3.3 tensile strength at yield, nfrom Test Methods D882.3.3.4 pigmentliquid or dry matter used as an additive, to alter the color of finished film or tape.4. Classification4.1 This specification covers three types of unsintered, pigmented, e
20、xtruded PTFE tapes:4.1.1 Type IThread Seal Tape (TST) with an apparent density of 0.50-1.60 g/cm3.4.1.2 Type IILow Density Tape with an apparent density of 0.60-0.80 g/cm3.4.1.3 Type IIIWire and Cable Tape with an apparent density of 1.40-1.65 g/cm3.NOTE 4Other products that do not fall into these d
21、ensity ranges are available. The values vary on these products and must be agreed to betweensupplier 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 this spec
22、ification. The system uses pre-defined cells to refer to specificaspects 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
23、Royal Blue, that specifies an unsintered wireand cable tape, 2 mil thick, having all of the properties listed for that type and grade in the appropriate specified properties, tables,or both, in the specification identified. A comma is used as the separator between the standard number and the type. S
24、eparatorsare not needed between the type and grade because they are, in turn, Roman numerals and Arabic digits as provided in SectionB8. of the Form elongation; extruded; film; fluorocarbon film; pigmented; PTFE; PTFE tape; tape; tensile; thread sealtape; unsinteredSUMMARY OF CHANGESCommittee D20 ha
25、s identified the location of selected changes to this standard since the last issue(D7193 - 05D7193 - 11) that may impact the use of this standard. (February(September 1, 2011)2017)(1) Added Summary Of Changes section as the last issue was the original issue.(2) Revised permissive text throughout.(3
26、) Added Note 1 after 1.1 directing the user to the appropriate standard for non-pigmented versions of this material.(1) Updated referenceNote 2 standards 2.1.(2) Changed test method fromSection 1.1: Corrected resin D638 topre-pigment composition D882 inof PTFE 3.3.3 to harmonizewith Guide from 97% t
27、o 99% D6040.(6) Revised Note 4 in Section 4 regarding alternate, user-specific, required densities.(7) Added 5.3 to address dielectric breakdown requirements.(8) Added 5.4 to address dielectric constant and volume resistivity requirements should they exist.(3) AddedHarmonized 5.5format and Table 4 c
28、overing width tolerance of slit tapesASTM.verbiage to match D6585 by adding notenumbering for notes and locating in similar sections of the standard, removing previous identifier.D7193 174ASTM International takes no position respecting the validity of any patent rights asserted in connection with an
29、y 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
30、 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 additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at
31、 a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor D
32、rive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 175
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