ASTM_D_3368_-_17_2022.pdf

Designation:D336817(Reapproved 2022)Standard Specification forFEP Sheet and Film1This standard is issued under the fixed designation D3368;the number immediately following the designation indicates the year oforiginal 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 U.S.Department of Defense.1.Scope1.1 This specification covers unfilled,unpigmented FEPresin sheet and film less than 3.175 mm(0.125 in.)thick.Recycled materials are allowed in accordance with 6.2.1.2 The values stated in SI units as detailed in IEEE/ASTMSI 10 are to be regarded as standard and the practices ofIEEE/ASTM SI 10 incorporated herein.1.3 The following safety hazards caveat pertains only to thetest methods portion,Section 14,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety,health,andenvironmental practices and determine the applicability ofregulatory limitations prior to use.NOTE1There is no known ISO equivalent to this standard.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,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 Materialsat Commercial Power FrequenciesD374/D374M Test Methods for Thickness of Solid Electri-cal InsulationD618 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of PlasticsD792 Test Methods for Density and Specific Gravity(Rela-tive Density)of Plastics by DisplacementD882 Test Method for Tensile Properties of Thin PlasticSheetingD883 Terminology Relating to PlasticsD2116 Specification for FEP Resin Molding and ExtrusionMaterialsD3892 Practice for Packaging/Packing of PlasticsD5740 Guide for Writing Material Standards in the Classi-fication FormatE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodIEEE/ASTM SI 10 Standard for Use of the InternationalSystem of Units(SI)2.2 Other Standard:TAPPI 411 Standard Thickness(Caliper)of Paper and PaperProducts33.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this specification,seeTerminology D883.3.1.2 lot,none production run or a uniform blend of twoor more production runs.4.Classification4.1 This specification covers four types of FEP sheet andfilm:4.1.1 Type IGeneral purpose.4.1.2 Type IICementable film.Type II materials can besubdivided into two grades:4.1.2.1 Grade 1One side cementable,and4.1.2.2 Grade 2Two sides cementable.4.1.3 Type IIISpecial film for applications requiring un-usual flexural endurance or extreme thermal and chemicalservice.4.1.4 Type IVFilm for mold release applications.4.2 A line callout system is used to specify materials in thisstandard.The system uses predefined cells to refer to specificaspects of this specification,which are illustrated as follows:1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials(D20.15.12 on Fluoropolymers).Current edition approved March 15,2022.Published March 2022.Originallyapproved in 1975.Last previous edition approved in 2017 as D3368-17.DOI:10.1520/D3368-17R22.2For 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 page onthe ASTM website.3Available from Technical Association of the Pulp and Paper Industry(TAPPI),15 Technology Parkway South,Norcross,GA 30092,http:/www.tappi.org.Copyright 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 theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1SpecificationStandard NumberBlockTypeGradeClassSpecialNotes|Example:SpecificationD3368 XX,II1,0.051 mm thickFor this example,the line callout would be SpecificationD3368 XX,II 1,0.051 mm thick.This callout specifies a filmof FEP that is cementable on one side and that has all of theproperties listed for that type and grade in the appropriatespecified properties or tables,or both,in this specification.Inclusion of a class is provided for in