ASTM D4389/D4389M - 16 - Standard Specification for Finished Glass Fabrics Woven From Rovings

ASTM D4389/D4389M - 16

Standard Specification for Finished Glass Fabrics Woven From Rovings

Status : Current   Published : January 2016



1.1 This specification primarily covers glass fabrics woven from “E” electrical continuous glass fiber rovings that are intended primarily as a reinforcing material in laminated plastics for structural use.

1.2 This specification specifies the terminology, definitions, general requirements, and physical requirements for woven roving glass fiber fabrics. This specification permits the application of sizing materials to the glass fiber roving during manufacture that helps facilitate weaving. When used as permitted in this specification, such materials are compatible with the resin matrix as specified in the contracting instrument.

Note 1:  Sizing materials on glass fiber yarns, in most cases, are removed by various cleaning procedures as a first stage in preparing a finished fabric. When these yarn sizing materials are removed during a cleaning procedure, they need not be compatible with the subsequent resin matrix.

1.3  Units—The values stated in either SI units or inch-pound units are to be regarded as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.

Note 2:  This specification is one of a series to provide a substitute for the following Military Specifications:
 MIL-Y-1140H Yarn, Cord, Sleeving, Cloth, and Tape-Glass
 MIL-C-9084C Cloth, Glass Finished for Resin Laminates
 MIL-C-19663C Cloth, Glass, Woven Roving for Plastic Laminates

Standard NumberASTM D4389/D4389M - 16
TitleStandard Specification for Finished Glass Fabrics Woven From Rovings
Publication Date01 January 2016
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Appearance, Construction, Fabric count, Glass woven roving, Ignition loss, Length, Mass per unit area, Width
File Size92 KB

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