ASTM D4732-13(2020)

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.
Designation: D4732 −13 (Reapproved 2020)
Standard Specification for
Cool-Application Filling Compounds for
Telecommunications Wire and Cable
This standard is issued under the fixed designation D4732; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D150 Test Methods forAC Loss Characteristics and Permit-
tivity (Dielectric Constant) of Solid Electrical Insulation
1.1 This specification covers a variety of compounds used
D217 Test Methods for Cone Penetration of Lubricating
for filling the air spaces in telecommunications wires and
Grease
cables (both electrical and fiber optic) for the purpose of
D257 Test Methods for DC Resistance or Conductance of
preventing water and other undesirable fluids from entering or
Insulating Materials
migrating through the cable structure. (For related standards
D445 Test Method for Kinematic Viscosity of Transparent
see Specifications D4730 and D4731.)
and Opaque Liquids (and Calculation of Dynamic Viscos-
1.2 A cool-application compound is a material that has
ity)
sufficiently low viscosity that it does not require heating.
D566 TestMethodforDroppingPointofLubricatingGrease
1.3 The values stated in SI units are to be regarded as D938 Test Method for Congealing Point of Petroleum
Waxes, Including Petrolatum
standard. The values given in parentheses after SI units are
provided for information only and are not considered standard. D942 Test Method for Oxidation Stability of Lubricating
Greases by the Oxygen Pressure Vessel Method
1.4 This international standard was developed in accor-
D972 Test Method for Evaporation Loss of Lubricating
dance with internationally recognized principles on standard-
Greases and Oils
ization established in the Decision on Principles for the
D1264 Test Method for Determining the Water Washout
Development of International Standards, Guides and Recom-
Characteristics of Lubricating Greases
mendations issued by the World Trade Organization Technical
D1500 Test Method forASTM Color of Petroleum Products
Barriers to Trade (TBT) Committee.
(ASTM Color Scale)
D1742 Test Method for Oil Separation from Lubricating
2. Referenced Documents
Grease During Storage
2.1 ASTM Standards:
D1743 Test Method for Determining Corrosion Preventive
D6 Test Method for Loss on Heating of Oil and Asphaltic
Properties of Lubricating Greases
Compounds
D2161 Practice for Conversion of Kinematic Viscosity to
D88 Test Method for Saybolt Viscosity
Saybolt Universal Viscosity or to Saybolt Furol Viscosity
D92 Test Method for Flash and Fire Points by Cleveland
D3895 Test Method for Oxidative-Induction Time of Poly-
Open Cup Tester
olefins by Differential Scanning Calorimetry
D97 Test Method for Pour Point of Petroleum Products
D3954 Test Method for Dropping Point of Waxes
D127 Test Method for Drop Melting Point of Petroleum
D4565 Test Methods for Physical and Environmental Per-
Wax, Including Petrolatum
formance Properties of Insulations and Jackets for Tele-
communications Wire and Cable
D4568 Test Methods for Evaluating Compatibility Between
This specification is under the jurisdiction of ASTM Committee D09 on
Cable Filling and Flooding Compounds and Polyolefin
Electrical and Electronic Insulating Materials and is the direct responsibility of
Wire and Cable Materials
Subcommittee D09.07 on Electrical Insulating Materials.
D4730 Specification for Flooding Compounds for Telecom-
Current edition approved Aug. 1, 2020. Published September 2020. Originally
munications Wire and Cable
approved in 1987. Last previous edition approved in 2013 as D4732 – 13. DOI:
10.1520/D4732-13R20.
D4731 Specification for Hot-Application Filling Com-
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
pounds for Telecommunications Wire and Cable
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
D4872 Test Method for DielectricTesting ofWire and Cable
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. Filling Compounds
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D4732 − 13 (2020)
3. Terminology thecompoundformulationtoassurespecifiedresultsinthermal
oxidative stability testing.
3.1 Definitions of Terms Specific to This Standard:
3.1.1 filling material, n—any of several materials used to fill 7.3 Once established, the producer shall not change the
the air spaces in the cores of multi-conductor insulated wires composition of the compound in successive lots of material
and cables, or between buffer tubes covering optical fibers, or without prior approval of the purchaser.
within such buffer tubes, or any combination of these configu-
8. Electrical Properties
rations and any other cable components, for the purpose of
excluding water and other undesirable fluids; especially with 8.1 When a Type II (electrical) filling compound is
regard to telecommunications wire and cable, including optical
specified, the compound shall exhibit the electrical properties
cable, intended for outside aerial, buried, or underground in 8.1.1 and 8.1.2. The electrodes used shall be parallel plates
installations.
of solid or foil metal of a size and shape appropriate for the
specimen holder. Other electrodes are used as agreed upon
3.1.2 producer, n—the primary manufacturer of the mate-
between the producer and the purchaser. The voltage applied
rial.
and the time of the electrification shall be appropriate for the
3.1.3 suppliers, n—jobbers and distributors as distinct from
instrumentationusedandasagreeduponbetweenproducerand
producers.
purchaser.
8.1.1 When tested, in accordance withTest Method D150 or
4. Classification
D4872, at a temperature of 23 6 3 °C, the dissipation factor
4.1 Two basic types of filling compounds are covered, as
shall not exceed 0.0010 at a frequency of 1 MHz and the
follows:
permittivity shall not exceed 2.30.
4.1.1 Type I—General-purpose filling compounds include
8.1.2 Whentested,inaccordancewithTestMethodD257,at
all materials to be used for filling cables that are not required
a temperature of 23 6 3 °C, the volume resistivity shall be not
to function under electrical stress (for example, all-dielectric 13
less than 10 Ω·cm.
fiber-optic cable), including filling compounds for fiber-optic
loose buffer tubes.
9. Physical Properties
4.1.2 Type II—Electrical-type filling compounds include
9.1 Filling compound furnished under this specification
materials having prescribed electrical properties and used for
shall inhibit the corrosion of any metallic wire and cable
filling wires and cables that are required to function fully or
elements with which it comes in contact, while serving as a
partially under electrical stress (including hybrid fiber-optic
radial and longitudinal barrier to moisture transmission. Con-
cable).
tact of the filling compound with any cable component shall
not cause degradation of performance of the cable component.
5. Ordering Information
The filling compound shall display adhesive properties to
5.1 Orders for material under this specification shall include
provide adhesion between metallic sheath elements and the
the following information:
outer jacket materials of wire and cable.
5.1.1 Quantity (mass or volume) for each item,
9.2 Other Physical Properties:
5.1.2 Generic name of the material, such as cool-application
9.2.1 Other physical properties requirements such as Flash
cable filling material,
Point (for example, Test Method D92
...