Standard Specification for Greige Woven Glass Fabrics

ABSTRACT
This specification covers the general and physical requirements for greige fabrics woven from “E” electrical glass fiber yarns. The yarn shall be a continuous filament, free of any free alkali metal salts, such as soda or potash, and foreign particles, dirt, and other impurities. The fabric shall be furnished in rolls and shall be wound in spiral tubes. The materials shall be tested and shall conform to the following requirements: fabric count; yarn numbers for both the warp and filling yarns; filament diameter; strand construction; twist direction wherein the primary twist in the singles strands shall be “Z” twist and the final twist in the plied yarns shall be “S” twist; twist level; fabric weave type which shall include crowfoot, leno, mock leno, plain, eight-harness satin, and twelve-harness satin; mass per unit area; thickness; breaking strength; width including both selvages but excluding any feathered edges; fabric roll length, length between splices, and number of splices per roll; and ignition loss. The fabrics shall also be examined for defects such as bias or bowed filling; baggy, ridged, or wavy cloth; cut or tear; hole; spots, streaks, or stains; foreign inclusions; tender or weak spot; smash; broken, missing ends or picks; floats and skips; light and heavy marks; crease; waste; weave separation; brittle or fused area; selvage defects; selvage leno ends out; and feather edges.
SCOPE
1.1 This specification covers greige fabrics woven from “E” electrical glass fiber yarns. This specification can also be applied to fabrics made of other glass fiber types as agreed upon between the purchaser and the supplier.
1.2 This specification specifies the terminology, definitions, general requirements and physical requirements for greige glass fiber fabrics. This specification permits the application of organic materials to the glass fiber yarn during manufacture that helps facilitate weaving.
1.3 This specification shows the values in both SI units and in inch-pound units. “SI units” is the technically correct name for the system of metric units known as the International System of Units. “Inch-pound units” is the technically correct name for the customary units used in the United States. The values in SI units are provided as information only; the values stated in inch-pound units are to be regarded as standard.
1.4 This specification is one of a series to provide a substitute for Military Specifications: MIL-Y-1140 Yarn, Cord, Sleeving, Cloth, and Tape-Glass; and MIL-C-9084 Cloth, Glass Finished for Resin Laminates.
1.5 Additional ASTM specifications in this series have been drafted and appear in current editions of the Annual Book of ASTM Standards. These include finished glass fabrics, unfinished glass fabrics, glass tapes, glass sleevings, glass cords, glass sewing threads, and finished laminates made from finished glass fabrics.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D579 – 09
Standard Specification for
1
Greige Woven Glass Fabrics
This standard is issued under the fixed designation D579; 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.
This standard has been approved for use by agencies of the Department of Defense.
2
1. Scope 2. Referenced Documents
1.1 This specification covers greige fabrics woven from “E” 2.1 ASTM Standards:
electrical glass fiber yarns. This specification can also be D123 Terminology Relating to Textiles
applied to fabrics made of other glass fiber types as agreed D578 Specification for Glass Fiber Strands
upon between the purchaser and the supplier. D1059 Test Method for Yarn Number Based on Short-
1.2 This specification specifies the terminology, definitions, Length Specimens
general requirements and physical requirements for greige D1423 Test Method for Twist in Yarns by Direct-Counting
glass fiber fabrics. This specification permits the application of D1776 Practice for Conditioning and Testing Textiles
organic materials to the glass fiber yarn during manufacture D1777 Test Method for Thickness of Textile Materials
that helps facilitate weaving. D3773 Test Methods for Length of Woven Fabric
1.3 This specification shows the values in both SI units and D3774 Test Method for Width of Textile Fabric
in inch-pound units. “SI units” is the technically correct name D3775 Test Method for Warp (End) and Filling (Pick)
for the system of metric units known as the International Count of Woven Fabrics
System of Units. “Inch-pound units” is the technically correct D3776 Test Methods for Mass Per Unit Area (Weight) of
name for the customary units used in the United States. The Fabric
values in SI units are provided as information only; the values D4963 Test Method for Ignition Loss of Glass Strands and
stated in inch-pound units are to be regarded as standard. Fabrics
1.4 This specification is one of a series to provide a D5035 Test Method for Breaking Force and Elongation of
substitute for Military Specifications: MIL-Y-1140Yarn, Cord, Textile Fabrics (Strip Method)
Sleeving, Cloth, and Tape-Glass; and MIL-C-9084 Cloth, D7018 Terminology Relating to Glass Fiber and Its Prod-
Glass Finished for Resin Laminates. ucts
1.5 AdditionalASTM specifications in this series have been 2.2 ANSI Standards:
drafted and appear in current editions of the Annual Book of ANSI/ASQC Z1.4 Sampling Procedures for Inspection by
3
ASTM Standards. These include finished glass fabrics, unfin- Attributes
ished glass fabrics, glass tapes, glass sleevings, glass cords, 2.3 Military Standard and Specifications:
4
glass sewing threads, and finished laminates made from fin- MIL-Y-1140H Yarn, Cord, Sleeving, Cloth and Tape-Glass
4
ished glass fabrics. MIL-C-9084C Cloth, Glass Finished for Resin Laminates
1.6 This standard does not purport to address all of the 2.4 Textile Institute Documents:
5
safety concerns, if any, associated with its use. It is the Textile Terms and Definitions
5
responsibility of the user of this standard to establish appro- Woven Cloth Construction
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. 2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
1 3
This specification is under the jurisdiction of ASTM Committee D13 on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
Textiles and is the direct responsibility of Subcommittee D13.18 on Glass Fiber and 4th Floor, New York, NY 10036, http://www.ansi.org.
4
its Products. AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
Current edition approved Jan. 15, 2009. Published February 2009. Originally Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
5
approved in 1940. Last previous edition approved in 2004 as D579 – 04. DOI: Available from the Textile Institute, 10 Blackfriars St., Manchester, M3 5DR
10.1520/D0579-09. England.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D579 – 09
TABLE 2 Tolerances—Mass/Unit Area
3. Terminology
Nominal Mass/Unit Area, Permissible Variation,
3.1 For all terminology relating to D13.18, Glass Fibers and
2 2
g/m (oz/yd ) %
Its Products, refer to Terminology D7018.
136 (4.0) and under 610
Over 136 (4.0) 66
3.1.1 The following terms are relevant to this specification:
atmo
...

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D579–04 Designation: D 579 – 09
Standard Specification for
1
Greige Woven Glass Fabrics
This standard is issued under the fixed designation D 579; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1 This specification covers greige fabrics woven from “E” electrical glass fiber yarns. This specification can also be applied
to fabrics made of other glass fiber types as agreed upon between the purchaser and the supplier.
1.2 This specification specifies the terminology, definitions, general requirements and physical requirements for greige glass
fiber fabrics. This specification permits the application of organic materials to the glass fiber yarn during manufacture that helps
facilitate weaving.
1.3 This specification shows the values in both SI units and in inch-pound units. “SI units” is the technically correct name for
the system of metric units known as the International System of Units. “Inch-pound units” is the technically correct name for the
customary units used in the United States.The values in SI units are provided as information only; the values stated in inch-pound
units are to be regarded as standard.
1.4 This specification is one of a series to provide a substitute for Military Specifications: MIL-Y-1140 Yarn, Cord, Sleeving,
Cloth, and Tape-Glass; and MIL-C-9084 Cloth, Glass Finished for Resin Laminates.
1.5 AdditionalASTMspecificationsinthisserieshavebeendraftedandappearincurrenteditionsoftheAnnualBookofASTM
Standards. These include finished glass fabrics, unfinished glass fabrics, glass tapes, glass sleevings, glass cords, glass sewing
threads, and finished laminates made from finished glass fabrics.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2
2. Referenced Documents
2.1 ASTM Standards:
D 123 Terminology Relating to Textiles
D 578 Specification for Glass Fiber Strands
D 1059 Test Method for Yarn Number Based on Short-Length Specimens
D 1423 Test Method for Twist in Yarns by the Direct-Counting Method
D 1776 Practice for Conditioning Textiles for Testing Practice for Conditioning and Testing Textiles
D 1777 Test Method for Measuring Thickness of Textile Materials
D 3773 Test Methods for Length of Woven Fabric
D 3774 Test MethodsMethod for Width of Textile Fabric
D 3775 Test Method for Warp End Count (End) and Filling (Pick) Count of Woven Fabrics
D 3776 Test Methods for Mass Per Unit Area (Weight) of Fabric
D4029Specification for Finished Woven Glass Fabrics
D 4963 Test Method for Ignition Loss of Glass Strands and Fabrics
D5035Test Method for Breaking Force and Elongation of Textile Fabrics (Strip Method)
D 5035 Test Method for Breaking Force and Elongation of Textile Fabrics (Strip Method)
D 7018 Terminology Relating to Glass Fiber and Its Products
2.2 ANSI Standards:
3
ANSI/ASQC Z1.4 Sampling Procedures for Inspection by Attributes
1
This specification is under the jurisdiction ofASTM Committee D13 onTextiles and is the direct responsibility of Subcommittee D13.18 on Glass Fiber and its Products.
Current edition approved March 1, 2004. Published April 2004. Originally approved in 1940. Last previous edition approved in 1997 as D579–97.
Current edition approved Jan. 15, 2009. Published February 2009. Originally approved in 1940. Last previous edition approved in 2004 as D 579 – 04.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D579–09
2.3 Military Standard and Specifications:
4
MIL-Y-1140H Yarn, Cord, Sleeving, Cloth and Tape-Glass
4
MIL-C-9084C Cloth, Glass Finished for Resin Laminates
2.4 Textile
...

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