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ASTM D4732-13

Current Revision

Standard Specification for Cool-Application Filling Compounds for Telecommunications Wire and Cable

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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 D4730 and D4731.)

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 are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.


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.


SDO ASTM: ASTM International
Document Number D4732
Publication Date May 1, 2013
Language en - English
Page Count 4
Revision Level 13
Supercedes
Committee D09.07
Publish Date Document Id Type View
May 1, 2013 D4732-13 Revision
Sept. 10, 2002 D4732-02 Revision
Aug. 1, 2020 D4732-13R20 Reaffirmation
May 1, 2008 D4732-02R08E01 Reaffirmation
Feb. 10, 1998 D4732-93R98 Reaffirmation