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Designation: D4732 − 13 (Reapproved 2020)Standard Specif i cation forCool-Application Filling Compounds forTelecommunications Wire and Cable 1This standard is issued under the f i xed designation D4732; 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. Scope1.1 This specif i cation covers a variety of compounds usedfor f i lling the air spaces in telecommunications wires andcables (both electrical and f i ber optic) for the purpose ofpreventing water and other undesirable f l uids from entering ormigrating through the cable structure. (For related standardssee Specif i cations D4730 and D4731.)1.2 A cool-application compound is a material that hassufficiently low viscosity that it does not require heating.1.3 The values stated in SI units are to be regarded asstandard. The values given in parentheses after SI units areprovided for information only and are not considered 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: 2D6 Test Method for Loss on Heating of Oil and AsphalticCompoundsD88 Test Method for Saybolt ViscosityD92 Test Method for Flash and Fire Points by ClevelandOpen Cup TesterD97 Test Method for Pour Point of Petroleum ProductsD127 Test Method for Drop Melting Point of PetroleumWax, Including PetrolatumD150 Test Methods for AC Loss Characteristics and Permit-tivity (Dielectric Constant) of Solid Electrical InsulationD217 Test Methods for Cone Penetration of LubricatingGreaseD257 Test Methods for DC Resistance or Conductance ofInsulating MaterialsD445 Test Method for Kinematic Viscosity of Transparentand Opaque Liquids (and Calculation of Dynamic Viscos-ity)D566 Test Method for Dropping Point of Lubricating GreaseD938 Test Method for Congealing Point of PetroleumWaxes, Including PetrolatumD942 Test Method for Oxidation Stability of LubricatingGreases by the Oxygen Pressure Vessel MethodD972 Test Method for Evaporation Loss of LubricatingGreases and OilsD1264 Test Method for Determining the Water WashoutCharacteristics of Lubricating GreasesD1500 Test Method for ASTM Color of Petroleum Products(ASTM Color Scale)D1742 Test Method for Oil Separation from LubricatingGrease During StorageD1743 Test Method for Determining Corrosion PreventiveProperties of Lubricating GreasesD2161 Practice for Conversion of Kinematic Viscosity toSaybolt Universal Viscosity or to Saybolt Furol ViscosityD3895 Test Method for Oxidative-Induction Time of Poly-olef i ns by Differential Scanning CalorimetryD3954 Test Method for Dropping Point of WaxesD4565 Test Methods for Physical and Environmental Per-formance Properties of Insulations and Jackets for Tele-communications Wire and CableD4568 Test Methods for Evaluating Compatibility BetweenCable Filling and Flooding Compounds and Polyolef i nWire and Cable MaterialsD4730 Specif i cation for Flooding Compounds for Telecom-munications Wire and CableD4731 Specif i cation for Hot-Application Filling Com-pounds for Telecommunications Wire and CableD4872 Test Method for Dielectric Testing of Wire and CableFilling Compounds1 This specif i cation is under the jurisdiction of ASTM Committee D09 onElectrical and Electronic Insulating Materials and is the direct responsibility ofSubcommittee D09.07 on Electrical Insulating Materials.Current edition approved Aug. 1, 2020. Published September 2020. Originallyapproved in 1987. Last previous edition approved in 2013 as D4732 – 13. DOI:10.1520/D4732-13R20.2 For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at service@astm.org. For Annual Book of ASTMStandards volume information, refer to the standard’s Document Summary page onthe ASTM website.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.1