1、Designation: D2686 06 (Reapproved 2012)An American National StandardStandard Specification forPolytetrafluoroethylene-Backed Pressure-SensitiveElectrical Insulating Tape1This standard is issued under the fixed designation D2686; the number immediately following the designation indicates the year ofo
2、riginal 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.This standard has been approved for use by agencies of the Department of
3、 Defense.1. Scope*1.1 This specification covers electrical insulating tape con-sisting of a polytetrafluoroethylene (PTFE) film coated on oneside with a pressure-sensitive adhesive.1.2 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informatio
4、nonly.NOTE 1This standard is similar to IEC 60454-3-14.2. Referenced Documents2.1 ASTM Standards:2D1000 Test Methods for Pressure-Sensitive Adhesive-Coated Tapes Used for Electrical and Electronic Applica-tionsD1711 Terminology Relating to Electrical Insulation2.2 IEC Standard:IEC 60454-3 Specificat
5、ions for Pressure-SensitiveAdhesiveTapes for Electrical Insulation33. Terminology3.1 DefinitionsFor definitions of terms used in this speci-fication, refer to Terminology D1711.4. Classification4.1 This specification covers two types of PTFE tape invarious thicknesses, as follows:4.1.1 Type IStandar
6、d backing coated with a siliconeadhesive:4.1.1.1 Grade A0.050 mm (0.002 in.) backing thickness,and4.1.1.2 Grade B0.125 mm (0.005 in.) backing thickness.4.1.2 Type IIBondable backing tape coated with a siliconeadhesive:4.1.2.1 Grade A0.050 mm (0.002 in.) backing thickness,and4.1.2.2 Grade B0.125 mm (
7、0.005 in.) backing thickness.5. Materials and Manufacture5.1 The tape shall comprise a backing consisting of a film oftetrafluorethylene polymer on one side of which has beenapplied a pressure-sensitive adhesive. The backing shall be freeof defects such as roughness and holes, and the adhesive layer
8、shall not show defects such as lumps or gels and bare areas.The slit edge of the tape shall be free of defects such as nicks.The adhesive shall not transfer when the tape is unwound fromthe roll. The product may contain a release liner to assist theunwind and avoid transfer without affecting the adh
9、esion of thetape.6. Requirements6.1 All tapes shall meet the requirements given in Table 1for the grades specified.7. Standard Rolls7.1 The standard widths and lengths shall be selected fromthe following:7.1.1 Widths:mm in. mm in.614 2278938 25 11212 30 1141558 38 1121934 50 2Widths greater than 50
10、mm (2 in.) shall be agreed uponbetween the purchaser and the seller.1This specification is under the jurisdiction of ASTM Committee D09 onElectrical and Electronic Insulating Materials and is the direct responsibility ofSubcommittee D09.07 on Flexible and Rigid Insulating Materials.Current edition a
11、pproved April 1, 2012. Published April 2012. Originallyapproved in 1968. Last previous edition approved in 2006 as D2686 06. DOI:10.1520/D2686-06R12.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStanda
12、rds 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.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM Int
13、ernational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.7.1.2 Lengths:mftmft33 108 55 18050 164 66 2167.1.3 Nonstandard widths and lengths are permissible ifagreed to between the purchaser and seller.8. Test Methods8.1 Select the rolls, condition, and test in
14、accordance withTest Methods D1000.9. Rejection9.1 If the test results of any roll do not conform to therequirements prescribed in the specification, two additionalrolls shall be selected and tested. If one of the two additionalsample rolls also does not conform to the requirements, the lotmay be rej
15、ected at the option of the purchaser.10. Packaging and Package Marking10.1 PackagingThe packaging shall withstand shipmentand shall give the product ample protection against damage.The individual rolls shall not adhere to each other or to thecontainer.10.2 MarkingEach package shall be marked with th
16、ename of the manufacturer; the ASTM specification number,type, and width; and the length of the roll.11. Keywords11.1 electrical insulating tape; polytetrafluoroethylene;pressure-sensitive adhesive tape; PTFESUMMARY OF CHANGESCommittee D09 has identified the location of selected changes to this spec
17、ification since the last issue,D2686 00, that may impact the use of this specification. (Approved October 15, 2006)(1) Corrected outdated reference to Test Method D1000 Adhe-sion Methods A and B and made a minor editorial correction inTable 1.ASTM International takes no position respecting the valid
18、ity 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 riskof infringement of such rights, are entirely their own responsibility.This standard is subje
19、ct 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 additional standardsand should be addressed to ASTM International Headquart
20、ers. 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 your views known to the ASTM Committee on Standards, at the address shown below.This standard
21、 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 servic
22、eastm.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/).TABLE 1 Requirements for PTFE Pressure-Sensitive AdhesiveTapesRequirements Grade A Grade BNominal thickness of backing, mm (i
23、n.) 0.050 (0.002) 0.125 (0.005)Total thickness, mm avg (in. avg) 0.100 6 0.025(0.004 6 0.001)0.180 6 0.025(0.0076 0.001)Breaking strength, min, kN/m (lbf/in.) avg 1.7 (10) 3.5 (20)Elongation, min, percent avg 75 150Adhesion, min, N/m (ozf/in.) avg:Steel 164 (15) 219 (20)Backing (Type II only) 164 (15) 164 (15)Dielectric breakdown, min, V avg:Standard condition 6000 10 000After water immersion 6000 10 000High-humidity insulation resistance,min, median megohms resistance2 3 1052 3 105D2686 06 (2012)2
