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TM_D_4967_
_21
Designation:D496721Standard Guide forSelecting Materials to Be Used for Insulation,Jacketing,andStrength Components in Fiber-Optic Cables1This standard is issued under the fixed designation D4967;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.1.Scope*1.1 This guide is intended to provide a list of materialscommonly used in components that provide insulation,jacket-ing and strength in fiber-optic cables.Where these materials arecovered byASTM standards,an appropriate reference is made.Due to changing technology,not all materials being used arenecessarily listed here.1.2 This guide does not include materials used in compo-nents for optical purposes(optical fiber and its coating)orexternal metallic armoring(such as for a barrier to rodents).1.3 This guide offers two general lists of materials:1.3.1 A subdivision of fiber-optic cable construction intocomponents that are used for insulation,jacketing,or strength,with a generic material classification for specific applicationsin each component(see Section 5),and1.3.2 Analphabeticallistofthegenericmaterialclassifications,showing ASTM standards where they exist(seeTable 1).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:2D1248 Specification for Polyethylene Plastics ExtrusionMaterials for Wire and CableD1457 Specification for Polytetrafluoroethylene(PTFE)Molding and Extrusion Materials(Withdrawn 1996)3D1711 Terminology Relating to Electrical InsulationD2116 Specification for FEP Resin Molding and ExtrusionMaterialsD2287 Classification System and Basis for Specification forNonrigid Vinyl Chloride Polymer and Copolymer Mold-ing and Extrusion CompoundsD2526 Specification for Ozone-Resisting Silicone RubberInsulation for Wire and Cable(Withdrawn 2006)3D3159 Specification for Modified ETFE FluoropolymerMolding and Extrusion MaterialsD3222 Specification for Unmodified Poly(Vinylidene Fluo-ride)(PVDF)Molding Extrusion and Coating MaterialsD3275 Classification System for E-CTFE-FluoroplasticMolding,Extrusion,and Coating MaterialsD3307 Specification for Perfluoroalkoxy(PFA)Resin Mold-ing and Extrusion MaterialsD3317 Specification for High Modulus,Organix Yarn andRoving(Withdrawn 1985)3D3664 Specification for Biaxially Oriented Polymeric ResinFilm for Capacitors in Electrical EquipmentD3935 Classification System and Basis for Specification forPolycarbonate(PC)Unfilled and Reinforced MaterialD4066 Classification System for Nylon Injection and Extru-sion Materials(PA)D4101 Classification System and Basis for Specification forPolypropylene Injection and Extrusion MaterialsD4246 Specification for Ozone-Resistant ThermoplasticElastomer Insulation for Wire and Cable,90 C OperationD4507 Specification for Thermoplastic Polyester(TPES)Materials(Withdrawn 1999)3D4730 Specification for Flooding Compounds for Telecom-munications Wire and CableD4731 Specification for Hot-Application Filling Com-pounds for Telecommunications Wire and CableD4732 Specification for Cool-Application Filling Com-pounds for Telecommunications Wire and CableD5575 Classification System for Copolymers of VinylideneFluoride(VDF)with Other Fluorinated Monomers1This guide is under the jurisdiction ofASTM Committee D09 on Electrical andElectronic Insulating Materials and is the direct responsibility of SubcommitteeD09.07 on Electrical Insulating Materials.Current edition approved March 1,2021.Published May 2021.Originallyapproved in 1989.Last previous edition approved in 2013 as D4967 99(2013).DOI:10.1520/D4967-21.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.*A Summary 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 the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1D8318 Specification for Low-Density Poly(VinylideneFluoride)Based Material Intended for Use in Wire andCable Jacketing3.Terminology3.1 Definitions:3.1.1 For definitions