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This specification covers two types of cool-application compounds used for filling the air spaces in telecommunications wires and cables (both electrical and fiber optic) for the purpose of preventing water and other undesirable fluids from entering or migrating through the cable structure. Type I are general-purpose filling compounds including all materials to be used for filling cables that are not required to function under electrical stress (for example, all-dielectric fiber-optic cable), including filling compounds for fiber-optic loose buffer tubes. While, Type II are electrical-type filling compounds including materials having prescribed electrical properties and used for filling wires and cables that are required to function fully or partially under electrical stress (including hybrid fiber-optic cable). Though chemical composition is not specified, the filling compounds shall, however, be tested and conform accordingly to the following electrical, physical, and temperature characteristics, as agreed upon between producer and purchaser: dissipation factor; volume resistivity; corrosion inhibition; adhesion; flash point; high-temperature drip/oil separation (syneresis) in the raw material state; evaporation loss; water resistance; homogeneity; color and opacity; color stability; foreign materials; volatility; thermal oxidative stability; cone penetration; pour point; drop-melting point; viscosity; congealing point; drop point; cable drip-out temperature; and cold-bend low-temperature flexibility.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers a variety of compounds used for filling the air spaces in telecommunications wires and cables (both electrical and fiber optic) for the purpose of preventing water and other undesirable fluids from entering or migrating through the cable structure. (For related standards see Specifications and .)
1.2 A cool-application compound is a material that has sufficiently low viscosity that it does not require heating.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D6 Test Method for Loss on Heating of Oil and Asphaltic Compounds
D88 Test Method for Saybolt Viscosity
D92 Test Method for Flash and Fire Points by Cleveland Open Cup Tester
D97 Test Method for Pour Point of Petroleum Products
D127 Test Method for Drop Melting Point of Petroleum Wax, Including Petrolatum
D150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation
D217 Test Methods for Cone Penetration of Lubricating Grease
D257 Test Methods for DC Resistance or Conductance of Insulating Materials
D445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
D566 Test Method for Dropping Point of Lubricating Grease
D938 Test Method for Congealing Point of Petroleum Waxes, Including Petrolatum
D942 Test Method for Oxidation Stability of Lubricating Greases by the Oxygen Pressure Vessel Method
D972 Test Method for Evaporation Loss of Lubricating Greases and Oils
D1264 Test Method for Determining the Water Washout Characteristics of Lubricating Greases
D1500 Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)
D1742 Test Method for Oil Separation from Lubricating Grease During Storage
D1743 Test Method for Determining Corrosion Preventive Properties of Lubricating Greases
D2161 Practice for Conversion of Kinematic Viscosity to Saybolt Universal Viscosity or to Saybolt Furol Viscosity
D3895 Test Method for Oxidative-Induction Time of Polyolefins by Differential Scanning Calorimetry
D3954 Test Method for Dropping Point of Waxes
D4565 Test Methods for Physical and Environmental Performance Properties of Insulations and Jackets for Telecommunications Wire and Cable
D4568 Test Methods for Evaluating Compatibility Between Cable Filling and Flooding Compounds and Polyolefin Wire and Cable Materials
D4730 Specification for Flooding Compounds for Telecommunications Wire and Cable
D4731 Specification for Hot-Application Filling Compounds for Telecommunications Wire and Cable
D4872 Test Method for Dielectric Testing of Wire and Cable Filling Compounds
ICS Number Code 33.120.10 (Coaxial cables. Waveguides)
UNSPSC Code 15101508(Crude oil); 15101700(Fuel Oils)
UNSPSC Code 26121616(Telecommunications cable)
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ASTM D4732-13(2020), Standard Specification for Cool-Application Filling Compounds for Telecommunications Wire and Cable, ASTM International, West Conshohocken, PA, 2020, www.astm.orgBack to Top