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ASTM-D4731:2008 Edition(Redline)

ASTM-D4731:2008 Edition(Redline)

$23.40

D4731-02(2008)e1 Standard Specification for Hot-Application Filling Compounds for Telecommunications Wire and Cable (Redline)

Published By Publication Date Number of Pages
ASTM 2008 5
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Abstract

This specification covers a variety of petroleum-based and other 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. The two basic types of filling compounds are specified: Type I which are general-purpose filling compounds that include all materials to be used for filling cables that are not required to function under electrical stress and Type II which are electrical-type filling compounds that include materials having prescribed electrical properties and used for filling wires and cables that are required to function fully or partially under electrical stress. Filling compound furnished shall inhibit the corrosion of any metallic wire and cable elements with which it comes in contact, while serving as a radial and longitudinal barrier to moisture transmission. Contact of the filling compound with any cable component shall not cause degradation of performance of the cable component. The filling compound shall display adhesive properties to provide adhesion between metallic sheath elements and the outer jacket materials of wire and cable. The following properties of filling compounds manufactured shall be determined: homogeneity, color and opacity, color stability, foreign materials, and other properties that includes volatility, thermal oxidative stability, and corrosion prevention.

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. Scope

1.1 This specification covers a variety of petroleum-based and other 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 D 4730 and D 4732).

1.2 A hot-application compound is a material that requires melting in order to be applied as a liquid and its melting point may affect its performance in the finished cable product.

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.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D6 Test Method for Loss on Heating of Oil and Asphaltic Compounds 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 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) D938 Test Method for Congealing Point of Petroleum Waxes, Including Petrolatum D1500 Test Method for ASTM Color of Petroleum Products (ASTM Color Scale) 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

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