1、Designation: D4967 99 (Reapproved 2009)An 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 D4967; the number immediately following the designation indi
2、cates 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. Scope1.1 This guide is intended to provide a list o
3、f 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 technology, not all materials being used arenecessarily listed here.1.2 This guide does
4、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 i
5、nsulation, 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, showingASTM standards where they exist (see Table 1).2. Referenced Documents2.1 ASTM Standards:
6、2D1248 Specification for Polyethylene Plastics ExtrusionMaterials for Wire and CableD1457 Specification for Polytetrafluoroethylene (PTFE)Molding and Extrusion Materials3D1711 Terminology Relating to Electrical InsulationD2116 Specification for FEP-Fluorocarbon Molding andExtrusion MaterialsD2287 Sp
7、ecification for Nonrigid Vinyl Chloride Polymerand Copolymer Molding and Extrusion CompoundsD2526 Specification for Ozone-Resisting Silicone RubberInsulation for Wire and Cable3D3159 Specification for Modified ETFE-FluoropolymerMolding and Extrusion MaterialsD3222 Specification for Unmodified Poly(V
8、inylidene Fluo-ride) (PVDF) Molding Extrusion and Coating MaterialsD3275 Classification System for E-CTFE-FluoroplasticMolding, Extrusion, and Coating MaterialsD3307 Specification for Perfluoroalkoxy (PFA)-Fluorocarbon Resin Molding and Extrusion MaterialsD3317 Specification for High Modulus, Organi
9、c Yarn andRoving3D3664 Specification for Biaxially Oriented PolymericResin Film for Capacitors in Electrical EquipmentD3935 Specification for Polycarbonate (PC) Unfilled andReinforced MaterialD4066 Classification System for Nylon Injection and Ex-trusion Materials (PA)D4101 Specification for Polypro
10、pylene Injection and Extru-sion MaterialsD4246 Specification for Ozone-Resistant Thermoplastic1This 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 Shieldi
11、ngs and Coverings for Electricaland Telecommunication Wires and Cables.Current edition approved Oct. 1, 2009. Published February 2010. Originallyapproved in 1989. Last previous edition approved in 2004 as D4967 99(2004)1.DOI: 10.1520/D4967-99R09.2For referenced ASTM standards, visit the ASTM website
12、, 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.3Withdrawn.TABLE 1 Materials in Current UseMaterial ASTM SpecificationAcrylates .Aramids:fibers D3317tape .Fluoropl
13、astics:ECTFE D3275ETFE D3159FEP D2116PFA D3307PTFE D1457PVDF D3222Glass fibers .Glass-fiber reinforced plastics .Grease and similar materials D4730, D4731, D4732Nylon D4066Polybutylene D4730, D4731, D4732Polycarbonate D3935Polyester tape D3664Polyethylene D1248Polyimide tape .Polypropylene D4101Poly
14、urethane .Poly(vinyl chloride) D2287Rubber D4730, D4731, D4732Silicone rubber D2526Steel .Thermoplastic elastomer D4246Thermoplastic polyester D45071Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Elastomer Insulation For Wire and Cab
15、le, 90C OperationD4507 Specification for Thermoplastic Polyester (TPES)Materials3D4730 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 F
16、illing Com-pounds for Telecommunications Wire and Cable3. Terminology3.1 DefinitionsFor definitions of terms used in this guide,refer to Terminology D1711.3.2 Definitions of Terms Specific to This Standard:3.2.1 buffer, na material that is applied over an opticalfibers protective coating to further
17、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 contactwith the fiber cladding or coating with a tightly extruded buffermaterial overall.3.2.3 loose tube(s), n
18、a 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 DiscussionWhen required, the space between thefiber(s) and the inside of the tube may be filled with a suitablefill
19、ing 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, optical fiber ribbons or copper conductors can be placed.3.2.5 strength member(s), nmaterial(s) used in fiber opticc
20、able 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 fiber.4. Significance and Use4.1 The lists of components and materials are useful inenhancing the users understandi
21、ng 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 optics: materials suppliers, cable manufacturers, andend-users.5. Construction Terminology and Material SelectionOpt
22、ions5.1 Fiber-optic cable components and materials that havebeen used for each:5.1.1 Buffers/Tubes:5.1.1.1 Tight Buffers:(a) Fluoroplastic.(b) Nylon.(c) Thermoplastic Polyester.(d) Poly(vinyl chloride).5.1.1.2 Loose Tubes:(a) Fluoroplastic.(b) Nylon.(c) Thermoplastic Polyester.(d) Polycarbonate.(e)
23、Polyethylene.5.1.1.3 Composite BuffersSilicone rubber.5.1.1.4 Slotted Cores:(a) Polyethylene.(b) Polypropylene.5.1.1.5 PipesPolyethylene.5.1.1.6 Sheaths:(a) Fluoroplastic.(b) Nylon.(c) Silicone rubber.(d) Thermoplastic elastomer.(e) Polyethylene.5.1.1.7 Ribbons:(a) Acrylates.(b) Silicone Rubber.5.1.
24、2 Jackets:5.1.2.1 Outside Jackets:(a) Fluoroplastics: Ethylene Tetrafluoroethylene (ETFE),Ethylene-chlorotrifluoroethylene (ECTFE), Perfluoroalkoxy(PFA), Polytetrafluoroethylene (PTFE), Polyvinylidene Fluo-ride (PVDF).(b) Polyethylene.(c) Poly(vinyl chloride).(d) Thermoplastic elastomer.5.1.2.2 Inne
25、r Jackets:(a) Fluoroplastics (ECTFE, PVDF).(b) Polyethylene.(c) Polyurethane.(d) Poly(vinyl chloride).(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 Polyest
26、er.5.1.4.3 Polyimide.5.1.5 Filling and Flooding Compounds:5.1.5.1 Grease and similar 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
27、all possible classifications. It is not afunction of this guide to provide specific engineering data fordesign purposes.D4967 99 (2009)27. Keywords7.1 acrylates; aramids; fluoroplastics; glass fibers; glass-fibers reinforced plastics; grease and similar materials; nylon;polybutylene; polycarbonate;
28、polyester tape; polyethylene;polyimide tape; polypropylene; polyurethane; poly(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 menti
29、onedin 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 subject to revision at any time by the responsible technical committee a
30、nd 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 Headquarters. Your comments will receive careful consideration at a meeting
31、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 is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Bo
32、x 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/).D4967 99 (2009)3
