1、Designation:D719305 Designation: D7193 11Standard 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 ca
2、se 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. Scope1.1This specification covers unsintered, pigmented, extruded films or tapes manufactured from
3、polytetrafluoroethylene, innominal thicknesses from 0.025 mm (0.001 in.) to 0.51 mm (0.020 in.), that are 97% virgin PTFE in composition prior tointroducing pigments. *1.1 This specification covers unsintered, pigmented, extruded films or tapes manufactured from polytetrafluoroethylene, innominal th
4、icknesses from 0.025 mm (0.001 in.) to 0.51 mm (0.020 in.), which are 97 % virgin PTFE in composition prior tointroducing pigments.NOTE 1For unsintered non-pigmented products refer to Specification D6585.1.1.1 The use of recycled PTFE for production of unsintered extruded films or tapes has not been
5、 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 given inparentheses are for informa
6、tion only.1.3 This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of theuser of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitationsprior to use.NOTE 12Although
7、this specification and ISO/DIS 13000-1 (1997) and ISO/DIS 13000-2 (1997) differ in approach or detail, data obtained relatingto specific properties, using either are technically equivalent.NOTE2This 3This specification is intended to be a complement to Specification D6585, as the materials covered h
8、erein 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 and Dielectric Strength of Solid Electrical Insulating Materials atCommercial Power FrequenciesD150 Test Met
9、hods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical InsulationD257 Test Methods for DC Resistance or Conductance of Insulating MaterialsD618 Practice for Conditioning Plastics for TestingD638Test Method for Tensile Properties of Plastics 882 Test Method for Te
10、nsile 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 PlasticsD6040 Guide to Test Methods for Unsintered Polytetrafluoroethyl
11、ene (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 SI-10 Standard for Use of the International System of Units (SI): The Mo
12、dern Metric System1This 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 July 1, 2005. Published July 2005. DOI: 10.1520/D7193-05.Current edition approved Feb. 1, 2011
13、 Published February 2011. Originally approved 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, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume inform
14、ation, refer to the standards Document Summary page on the ASTM website.1This 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 may not be technically possible to adequately de
15、pict 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 the end of this standard.Copyright ASTM Internat
16、ional, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.2.2 ISO Standards:3ISO/DIS 13000-1 PlasticsPolytetrafluoroethylene (PTFE) Semi-Finished ProductsPart 1: Requirements and DesignationISO/DIS 13000-2 PlasticsPolytetrafluoroethylene (PTFE) Semi-Finished Products
17、Part 2: Preparation of Test Specimensand Determination of Properties2.3 GSA Standard:4A-A-58092 Tape, Anti-Seize Polytetrafluoroethylene3. Terminology3.1 DefinitionDefinitions are in accordance with Terminologies D883, D1711, and Test Methods D257; and abbreviated termsare in accordance with Termino
18、logy 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 tape, nmaterial that has been slit from the finished film.3.3.3 ten
19、sile strength at yield, nfrom Test Methods D638, Figure A2.3. from 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, extruded PTFE tapes:4.1.1 Type
20、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. Note3Other low apparent density products thatdo not fall into this density range are available. The values vary on these products and must be agreed to betwe
21、en supplier andpurchaser.4.1.3 Type IIIWire and Cable Tape with an apparent density of 1.40-1.65 g/cm3NOTE 4Other products that do not fall into these density ranges are available. The values vary on these products and must be agreed to betweensupplier and purchaser.4.2 Grades of tape are identified
22、 in Tables 1-3.4.3 A line callout system is used to specify materials in this specification. The system uses pre-defined cells to refer to specificaspects of this specification, as illustrated below:StandardNumberBlockType SpecificationGradeClass SpecialNotesASTMD7193III 2 mil - Color to beRoyal Blu
23、eFor this example, the line call-out would be: ASTM D7193, III, 2 MIL, Color to be Royal Blue, that would specify specifiesan unsintered wire and cable tape, 2 mil thick, and would havehaving all of the properties listed for that type and grade in theappropriate specified properties, tables, or both
24、 in the specification identified. A comma is used as the separator between thestandard number and the type. Separators are not needed between the type and grade because they are, in turn, Roman numeralsand Arabic digits as provided in Section B8. of the Form elongation; extruded; film; fluorocarbon
25、 film; pigmented; PTFE; PTFE tape; tape; tensile; thread sealtape; unsinteredSUMMARY OF CHANGESCommittee D20 has identified the location of selected changes to this standard since the last issue (D7193 - 05)that may impact the use of this standard. (February 1, 2011)(1) Added Summary Of Changes sect
26、ion as the last issue was the original issue.(2) Revised permissive text throughout.(3) Added Note 1 after 1.1 directing the user to the appropriate standard for non-pigmented versions of this material.(4) Updated reference standards 2.1.(5) Changed test method from D638 to D882 in 3.3.3 to harmoniz
27、e with Guide 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.(9) Added 5.5 and Table 4 covering w
28、idth tolerance of slit tapes ASTM.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risko
29、f 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
30、standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake yo
31、ur views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, 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 ASTM website (www.astm.org/COPYRIGHT/).D7193 114
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