1、Designation: D 4967 99 (Reapproved 2004)e1An American National StandardStandard Guide forSelecting Materials to Be Used for Insulation, Jacketing andStrength Components in Fiber-Optic Cables1This standard is issued under the fixed designation D 4967; the number immediately following the designation
2、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 (e) indicates an editorial change since the last revision or reapproval.e1NOTENon-mandatory language was replaced through
3、out editorially in November 2004.1. Scope1.1 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 by ASTM standards, an appropriate reference is made.Due to changing t
4、echnology, 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
5、.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 An alphabetical list of the generic material classifica-tions, showing
6、ASTM standards where they exist (see Table 1).2. Referenced Documents2.1 ASTM Standards:2D 1248 Specification for Polyethylene Plastics ExtrusionMaterials for Wire and CableD 1457 Specification for Polytetrafluoroethylene (PTFE)Molding and Extrusion Materials3D 1711 Terminology Relating to Electrica
7、l InsulationD 2116 Specification for FEP-Fluorocarbon Molding andExtrusion MaterialsD 2287 Specification for Nonrigid Vinyl Chloride Polymerand Copolymer Molding and Extrusion CompoundsD 2526 Specification for Ozone-Resisting Silicone RubberInsulation for Wire and CableD 3159 Specification for Modif
8、ied ETFE-FluoropolymerMolding and Extrusion MaterialsD 3222 Specification for Unmodified Poly (VinylideneFluoride) (PVDF) Molding, Extrusion, and Coating Mate-rialsD 3275 Specification for E-CTFE-Fluoroplastic Molding,Extrusion, and Coating MaterialsD 3307 Specification for Perfluoroalkoxy (PFA)-Flu
9、orocarbon Resin Molding and Extrusion MaterialsD 3317 Specification for High Modulus, Organic Yarn andRoving3D 3664 Specification for Biaxially Oriented PolymericResin Film for Capacitors in Electrical EquipmentD 3935 Specification for Polycarbonate (PC) Unfilled andReinforced MaterialD 4066 Classif
10、ication System for Nylon Injection and Ex-trusion Materials (PA)1This guide is under the jurisdiction of ASTM Committee D09 on Electrical andElectronic Insulating Materials and is the direct responsibility of SubcommitteeD09.18 on Solid Insulations, Non-Metallic Shieldings, and Coverings for Electri
11、caland Telecommunications Wires and Cables.Current edition approved April 10, 1999. Published June 1999. Originallyapproved in 1989. Last previous edition approved in 1995 as D 4967 95.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceast
12、m.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn.TABLE 1 Materials in Current UseMaterial ASTM SpecificationAcrylates .Aramids:fibers D 3317tape .Fluoroplastics:ECTFE D 3275ETFE D 3159FEP D 2116PFA D 3307PTFE D 145
13、7PVDF D 3222Glass fibers .Glass-fiber reinforced plastics .Grease and similar materials D 4730, D 4731, D 4732Nylon D 4066Polybutylene D 4730, D 4731, D 4732Polycarbonate D 3935Polyester tape D 3664Polyethylene D 1248Polyimide tape .Polypropylene D 4101Polyurethane .Poly(vinyl chloride) D 2287Rubber
14、 D 4730, D 4731, D 4732Silicone rubber D 2526Steel .Thermoplastic elastomer D 4246Thermoplastic polyester D 45071Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.D 4101 Specification for Propylene Plastic Injection andExtrusion Materia
15、lsD 4246 Specification for Ozone-Resistant ThermoplasticElastomer Insulation for Wire and Cable, 90 C Dry/75 CWet OperationD 4507 Specification for Thermoplastic Polyester (TPES)Materials3D 4730 Specification for Flooding Compounds for Tele-communications Wire and CableD 4731 Specification for Hot-A
16、pplication Filling Com-pounds for Telecommunications Wire and CableD 4732 Specification for Cool-Application Filling Com-pounds for Telecommunications Wire and Cable3. Terminology3.1 DefinitionsFor definitions of terms used in this guide,refer to Terminology D 1711.3.2 Definitions of Terms Specific
17、to This Standard:3.2.1 buffer, na material that is applied over an opticalfibers protective coating to further protect the fiber fromphysical damage and provide mechanical protection.3.2.2 composite buffer, npolymeric material(s) surround-ing the optical fiber so that the inner layer is in intimate
18、contactwith the fiber cladding or coating with a tightly extruded buffermaterial overall.3.2.3 loose tube(s), na buffer material that surrounds theoptical fiber(s) so that it forms a tube or channel whose insidedimension is greater than the fibers outside diameter (orcombined diameters).3.2.3.1 Disc
19、ussionWhen required, the space between thefiber(s) and the inside of the tube may be filled with a suitablefilling compound or with strength or cushioning elements, orboth.3.2.4 slotted core, nan element(s) with helical groovesassembled around a central strength member, in which opticalfibers, optic
20、al fiber ribbons or copper conductors can be placed.3.2.5 strength member(s), nmaterial(s) used in fiber opticcable construction which provide mechanical integrity andstability.3.2.6 tight buffer, na material surrounding the optical fiberso that it is in intimate contact with the coating on the fibe
21、r.4. Significance and Use4.1 The lists of components and materials are useful inenhancing the users understanding of the technology andconstruction of fiber-optics cables and the development ofperformance standards for cables.4.2 This guide is intended for use by all parties involvedwith fiber optic
22、s: materials suppliers, cable manufacturers, andend-users.5. Construction Terminology and Material SelectionOptions5.1 Fiber-optic cable components and materials that havebeen used for each:5.1.1 Buffers/Tubes:5.1.1.1 Tight Buffers:(a) (a) Fluoroplastic.(b) (b) Nylon.(c) (c) Thermoplastic Polyester.
23、(d) (d) Poly(vinyl chloride).5.1.1.2 Loose Tubes:(a) (a) Fluoroplastic.(b) (b) Nylon.(c) (c) Thermoplastic Polyester.(d) (d) Polycarbonate.(e) (e) Polyethylene.5.1.1.3 Composite BuffersSilicone rubber.5.1.1.4 Slotted Cores:(a) (a) Polyethylene.(b) (b) Polypropylene.5.1.1.5 PipesPolyethylene.5.1.1.6
24、Sheaths:(a) (a) Fluoroplastic.(b) (b) Nylon.(c) (c) Silicone rubber.(d) (d) Thermoplastic elastomer.(e) (e) Polyethylene.5.1.1.7 Ribbons:(a) (a) Acrylates.(b) (b) Silicone Rubber.5.1.2 Jackets:5.1.2.1 Outside Jackets:(a) (a) Fluoroplastics: Ethylene Tetrafluoroethylene(ETFE), Ethylene-chlorotrifluor
25、oethylene (ECTFE), Perfluoro-alkoxy (PFA), Polytetrafluoroethylene (PTFE), PolyvinylideneFluoride (PVDF).(b) (b) Polyethylene.(c) (c) Poly(vinyl chloride).(d) (d) Thermoplastic elastomer.5.1.2.2 Inner Jackets:(a) (a) Fluoroplastics (ECTFE, PVDF).(b) (b) Polyethylene.(c) (c) Polyurethane.(d) (d) Poly
26、(vinyl chloride).(e) (e) Thermoplastic elastomer.5.1.3 Strength Members:5.1.3.1 Aramid fibers.5.1.3.2 Glass-fiber reinforced plastic.5.1.3.3 Glass fibers.5.1.3.4 Steel.5.1.4 Wrapping Tapes:5.1.4.1 Aramid.5.1.4.2 Polyester.5.1.4.3 Polyimide.5.1.5 Filling and Flooding Compounds:5.1.5.1 Grease and simi
27、lar materials.5.1.5.2 Polybutylene.5.1.5.3 Rubber.6. Materials in Current Use6.1 Table 1 lists materials in current use as defined in theapplicable ASTM specification. It is intended only as a guideand does not include all possible classifications. It is not afunction of this guide to provide specif
28、ic engineering data fordesign purposes.D 4967 99 (2004)e127. Keywords7.1 acrylates; aramids; fluoroplastics; glass fibers; glass-fibers reinforced plastics; grease and similar materials; nylon;polybutylene; polycarbonate; polyester tape; polyethylene;polyimide tape; polypropylene; polyurethane; poly
29、(vinyl chlo-ride); rubber; silicone rubber; steel; thermoplastic elastomer;thermoplastic polyesterASTM 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 determ
30、ination 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 committee and must be reviewed every five years andif not revised, either reapproved or w
31、ithdrawn. 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 a meeting of theresponsible technical committee, which you may attend. If you feel that
32、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 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).D 4967 99 (2004)e13
