ASTM D4389/D4389M-04(2010)e1

Standard Specification for Finished Glass Fabrics Woven From Rovings

ABSTRACT
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. The basic designation for glass woven roving fabric is by mass per unit area and is given in grams per square metre. The roving shall be continuous filament fiber, free of any free alkali, such as sodium or potassium metal salts and foreign particles, dirt, and other impurities. For the given woven roving fabrics, the average fabric count, average size-free yarn numbers, filament diameter, average mass per unit area, and fabric length shall conform to the requirements specified. For woven roving fabrics, the roving designations, strand construction, and fabric width shall be agreed upon between the purchaser and the supplier. For the given woven roving fabrics, the weave type shall be plain weave. The woven roving fabric shall be generally uniform in quality and condition, clean, smooth, and free of foreign particles and defects detrimental to fabrication, appearance, or performance. Woven roving fabric shall be furnished in rolls and shall be wound on spiral tubes.
SCOPE
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

General Information

• Status: Historical
• Publication Date: 31-May-2010
• ICS: 59.100.10 - Textile glass materials
• Technical Committee: D13 - Textiles
• Drafting Committee: D13.18 - Glass Fiber and its Products

Relations

• Replaces: ASTM D4389-04 - Standard Specification for Finished Glass Fabrics Woven From Rovings
• Effective Date: 01-Jun-2010
• Referred By: ASTM F2881/F2881M-21e1 - Standard Specification for 12 to 60 in. [300 to 1500 mm] Polypropylene (PP) Dual Wall Pipe and Fittings for Non-Pressure Storm Sewer Applications
• Effective Date: 01-Jun-2010

Standards Content (Sample)

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
´1
Designation:D4389/D4389M −04(Reapproved 2010)
Standard Specification for
Finished Glass Fabrics Woven From Rovings
This standard is issued under the fixed designation D4389/D4389M; 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.
ε NOTE—The units statement was updated and 3.1.1 and the last line of Table 2 were added editorially in August 2010.
1. Scope D578 Specification for Glass Fiber Strands
D1776 Practice for Conditioning and Testing Textiles
1.1 This specification primarily covers glass fabrics woven
D2408 Test Method for Finish Content of Woven Glass
from “E” electrical continuous glass fiber rovings that are
Fabric, Cleaned and After-Finished With Amino-Silane-
intended primarily as a reinforcing material in laminated
Type Finishes, for Plastic Laminates (Withdrawn 1988)
plastics for structural use.
D2409 Test Method for Finish Content of Woven Glass
1.2 This specification specifies the terminology, definitions,
Fabric, Cleaned and After-Finished With Vinyl-Silane
general requirements, and physical requirements for woven
Type Finishes, for Plastic Laminates (Withdrawn 1988)
roving glass fiber fabrics. This specification permits the appli-
D2410 Test Method for Finish Content of Woven Glass
cation of sizing materials to the glass fiber roving during
Fabric, Cleaned and After-Finished With Chrome
manufacture that helps facilitate weaving. When used as 3
Complexes, for Plastic Laminates (Withdrawn 1988)
permitted in this specification, such materials are compatible
D2660 Test Method for Finish Content of Woven Glass
with the resin matrix as specified in the contracting instrument.
Fabric, Cleaned and After-Finished with Acrylic-Silane-
Type Finishes, for Plastic Laminates (Withdrawn 1988)
NOTE 1—Sizing materials on glass fiber yarns, in most cases, are
removed by various cleaning procedures as a first stage in preparing a
D3098 Test Method for Finish Content of Woven Glass
finished fabric. When these yarn sizing materials are removed during a
Fabrics, Cleaned and After-Finished with Epoxy-
cleaningprocedure,theyneednotbecompatiblewiththesubsequentresin
Functionsl Silane Type Finishes for Plastic Laminates
matrix.
(Withdrawn 1988)
1.3 Units—The values stated in either SI units or inch-
D3773 Test Methods for Length of Woven Fabric
pound units are to be regarded as standard.The values stated in
D3774 Test Method for Width of Textile Fabric
each system may not be exact equivalents; therefore, each
D3775 Test Method forWarp (End) and Filling (Pick) Count
system shall be used independently of the other. Combining
of Woven Fabrics
values from the two systems may result in nonconformance
D3776 Test Methods for Mass Per Unit Area (Weight) of
with the standard.
Fabric
D4029 Specification for Finished Woven Glass Fabrics
NOTE 2—This specification is one of a series to provide a substitute for
the following Military Specifications:
D4963 Test Method for Ignition Loss of Glass Strands and
MIL-Y-1140H Yarn, Cord, Sleeving, Cloth, and Tape-Glass
Fabrics
MIL-C-9084C Cloth, Glass Finished for Resin Laminates
D7018 Terminology Relating to Glass Fiber and Its Products
MIL-C-19663C Cloth, Glass, Woven Roving for Plastic Laminates
2.2 ANSI Standard:
ANSI/ASQC Z1.4 Sampling Procedures for Inspection by
2. Referenced Documents
Attributes
2.1 ASTM Standards:
D123 Terminology Relating to Textiles
3. Terminology
3.1 For definitions of glass fiber and product terms used in
1 this specification refer to Terminology D7018.
This specification is under the jurisdiction of ASTM Committee D13 on
Textiles and is the direct responsibility of Subcommittee D13.18 on Glass Fiber and
3.1.1 The following terms are relevant to this standard:
its Products.
continuous filament yarn, roving.
Current edition approved June 1, 2010. Published August 2010. Originally
approved in 1984. Last previous edition approved in 2004 as D4389 – 04. DOI:
ε1
10.1520/D4389_D4389M-04R10 .
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or The last approved version of this historical standard is referenced on
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM www.astm.org.
Standards volume information, refer to the standard’s Document Summary page on Available from American National Standards Institute 11 W. 42nd St., 13th
the ASTM website. Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
´1
D4389/D4389M−04 (2010)
3.2 For definitions of other textile terms used in this listed in Table 1, the average size-free yarn numbers shall be
specification, refer to Terminology D123. agreed upon between the purchaser and the supplier.
CLASSIFICATION 9. Filament Diameter
9.1 The range of values for the filament diameters are listed
4. Classification
in Table 2.The average filament diameter for the rovings in the
4.1 Designation of Woven Roving Fabric— The basic des-
woven roving fabric shall be within the interval listed in Table
ignationsforglasswovenrovingfabricisbymassperunitarea
2.
and is given in grams per square metre (ounces per square
10. Strand Construction
yard).Historically,anASTMtypenumberhasbeenusedbythe
industry. These numbers have been sequentially assigned as
10.1 The construction of the component strands shall be
new woven roving constructions as they were added to this
agreed upon between the purchaser and the supplier.
specification. Numbers, 1 through 10, are shown in Table 1
11. Weave Type
with the relationship to mass per unit area and fabric count.
11.1 For woven roving fabrics listed in Table 1, the weave
REQUIREMENTS
type shall be plain weave. For woven roving fabrics not listed
in Table 1, the weave type shall be agreed upon between the
5. Material
purchaser and the supplier.
5.1 The roving shall be continuous filament fiber, free of
any free alkali, such as sodium or potassium metal salts and
12. Mass per Unit Area
foreignparticles,dirt,andotherimpurities.ItshallbeanEtype
12.1 For woven roving fabrics listed in Table 1, the average
glass as defined in Specification D578.
mass per unit area shall conform to the requirements of Table
5.1.1 The fabric shall be uniformly woven, have uniform
1. For woven roving fabrics not listed in Table 1, the average
color, overall cleanness, and no objectionable odor.
mass per unit area shall be agreed upon between the purchaser
andthesupplier.Theaveragemassperunitareaforthelotshall
6. Fabric Count
be within the interval: specified mass per unit area 6 10 % of
6.1 For woven roving fabrics listed in Table 1, the average
the specified mass per unit area.
fabric count shall conform to the requirements of Table 1. For
woven roving fabrics not listed in Table 1, the average fabric 13. Width
count shall be agreed upon between the purchaser and the
13.1 Fabric width shall be agreed upon between the pur-
supplier.
chaser and the supplier. The fabric width, including both
selvages but excluding any feathered edges, shall not be less
7. Yarn Designations
than the specified width and no more than 13 mm (0.5 in.)
7.1 For woven roving fabrics, the roving designations shall
wider than the specified width.
be as agreed upon between the purchaser and the supplier. The
NOTE 3—During the processing of glass fabrics, the selvages may be
requirements of the individual elements of the designation are
slit to minimize tension influences. This slit distance is excluded when
specified in Sections 8-10.
measuring the fabric width unless otherwise agreed upon between the
purchaser and the supplier.
8. Yarn Number
14. Length
8.1 For woven roving fabrics listed in Table 1, the average
size-freeyarnnumbersoftheyarnsdesignatedshallconformto 14.1 For woven roving fabrics listed in Table 1, the fabric
the requirements of Table 1. For woven roving fabrics not length on each roll shall not be less than2m(2yd) below the
TABLE 1 Physical Properties of Generally Available “E” Glass Finished Woven Roving Fabrics
A
Roving
Construction
Nominal
Count Standard Roll
Nominal Roving Length Per Unit Mass
Mass Per
ASTM
25.4 mm Length
Weave
Unit Area
Type
Tex yd/lb
(1 in.) min
2 2
g/m oz/yd Warp Fill Warp Fill Warp Fill m yd
1 Plain 441 13.0 10 4 840 to 755 1065 to 925 590 to 655 465 to 535 91.5 100
2 Plain 542 16.0 10 4 840 to 755 1680 to 1505 590 to 655 295 to 330 91.5 100
3 Plain 831 24.5 5 4 2360 to 2065 2680 to 2255 210 to 240 185 to 220 68.5 75
4 Plain 831 24.5 5 3 2360 to 2065 3545 to 3105 210 to 240 140 to 160 68.5 75
5 Plain 915 27.0 5 2.5 2360 to 2065 4960 to 4725 210 to 240 100 to 105 59.5 65
6 Plain 610 18.0 7 6 1210 to 1835 1340 to 1155 410 to 270 370 to 430 68.5 75
7 Plain 745 22.0 5 4 2360 to 2065 2155 to 1910 210 to 240 230 to 260 68.5 75
8 Plain 610 18.0 4 4 2360 to 2065 1655 to 1505 210 to 240 300 to 330 68.5 75
9 Plain 559 16.5 5 4 1710 to 1525 1710 to 1525 290 to 325 290 to 325 91.5 100
10 Plain 711 21.0 4 4 2420 to 2155 2420 to 2155 205 to 230 205 to 230 82.5 90
A
In some cases, the fill yarn may be woven as 2 picks per shed and as 1 fill yarn. The basic roving length per unit area used to produce the above fill yarns should be
doubled.
´1
D4389/D4389M−04 (2010)
TABLE 2 Letter Designation for Average Fiber Diameter Range of TABLE 3 Woven Roving Fabric Defects
Glass Roving Used in Woven Roving Fabrics
Crease or wrinkle, embedded; cannot be removed by hand rubbing
Any knots
SI Units US Customary Units
Letter
Any brittle or fused area
Diameter in Micrometres Diameter in Inches
Designation
Any smash
At Least Below At Least Below
Any broken or missing end or pick
G 8.9 10.2 0.00035 0.00040
Any hole, cut, or tear
H 10.2 11.4 0.00040 0.00045
Any spot, stain, or streak clearly visible
J 11.4 12.7 0.00045 0.00050
Any pulled together or torn filament
K 12.7 14.0 0.00050 0.00055
Any torn, broken, or otherwise damaged selvage
L 14.0 15.2 0.00055 0.00060
Any thick or thin place, clearly visible
M 15.2 16.5 0.00060 0.00065
Foreign matter adhering to surface, clearly visible
N 16.5 17.8 0.00065 0.00070
Any jerked-in filling or slough-off
P 17.8 19.0 0.00070 0.00075
T 22.8 24.2 0.00090 0.00095
minimum inside diameter and 25 mm (1 in.) longer than the
requirements listed in Table 1 unless otherwise agreed upon
overall width of the fabric, unless otherwise specified. The
between the purchaser and the supplier. For woven roving
maximum number of pieces contained in any roll shall be as
fabrics not listed in Table 1, the fabric length on each roll shall
specified in 18.1.
be agreed upon between the purchaser and the supplier.
17.2 Unless otherwise agreed upon, as when specified in an
14.2 No piece of woven roving fabric shall be less than 14
applicable material specification, each roll shall be packed in a
m (15 yd) long and there shall be no more than two pieces in
sealed, vapor-tight bag of polyethylene not less than 0.05 mm
a roll, unless otherwise agreed upon between the purchaser and
(0.002 in.) thick in such a manner as to ensure that the fabric,
the supplier.
during shipment and storage, will be protected against damage
14.3 None of the sample rolls shall contain more than the
from exposure to moisture, weather, or any other normal
allowable pieces, and the combined length of all of the sample
hazard.
rolls shall not be less than the combined lengths given on the
NOTE 4—Once opened by the user, if the roll is not totally consumed,
identification labels of the sample rolls.
it is good practice to rebag the roll, add desiccant, and seal the bag.
15. Ignition Loss
18. Packaging
15.1 The organic content of woven roving fabric shall be no
18.1 Each roll of woven roving fabric, put up as specified,
less than 0.075 % and no more than 0.25 % unless otherwise
shall be packaged to afford adequate protection against physi-
agreed upon between the purchaser and the supplier.
cal damage during shipment from the supply source to the
15.2 The type of, level of, and tolerances for roving finish
receiving activity. The supplier may use his standard practice
shall be agreed upon between the purchaser and the supplier.
when it meets this requirement.
The roving finish should be compatible with, and produce the
required performance characteristics for the resin system
19. Marking
specified in the applicable laminate specification or other
19.1 Each package shall be marked to show the following
procurement document. If the purchaser and the supplier agree
information unless specified otherwise between the purchaser
that laminate testing (wet and dry) is to be used to determine
and the supplier. Characters shall be of such size as to be
acceptability of the finish content, this fact and the test method
clearly legible and shall not be obliterated by normal handling:
shall be specified in the contracting document.
100 % Fiber Glass Woven Roving Cloth
16. Fabric Appearance
Glass Type E
Fabric Type
16.1 The woven roving fabric shall be generally uniform in
Length
quality and condition, clean, smooth, and free of foreign
Width
particles and defects detrimental to fabrication, appearance, or
Purchase Order Number
performance.
Manufacturers Identification
16.2 The fabric in the laboratory sample for the fabric
Finish Designation
appearance shall be examined for the defects listed in Table 3
and the acceptable quality levels (AQLs) shall be 6.5 total
SAMPLING AND CONDITIONING
defects per hundred units of fabric unless otherwise agreed
upon between the purchaser and the supplier. 20. Sampling
20.1 Lot Size—A lot shall consist of each 9070 kg (20 000
16.3 When specified, the warp direction of the fabric shall
be marked by blue direction-indicator yarns running warpwise lb) of a single woven roving fabric type unless otherwise
agreed upon between the purchaser and the supplier.
in the cloth and spaced approximately 150 mm (6 in.) apart.
20.1.1 When small multiple shipments are made from an
17. Put-Up
inspected lot, the shipments may be made without additional
17.1 Woven roving fabric shall be furnished in rolls and inspection as agreed upon between the purchaser and the
shall be wound on spiral tubes measuring 76.2-mm (3-in.) supplier.
´1
D4389/D4389M−04 (2010)
20.2 Lot Sample—Unless otherwise agreed upon, as when 25. Filament Diameter
specified in an applicable order or contract, take at random as
25.1 Determine the filament diameter for both the warp and
a lot sample the number of rolls of woven roving fabric
filling yarns as directed in Specification D578 by using 50
specified in ANSI/ASQC Z1.4 and a single
...

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.
´1
Designation:D4389–04 Designation: D4389/D4389M – 04 (Reapproved 2010)
Standard Specification for
Finished Glass Fabrics Woven From Rovings
This standard is issued under the fixed designation D4389; 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 is issued under the fixed designation D4389/D4389M; 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.
´ NOTE—The units statement was updated and 3.1.1 and the last line of Table 2 were added editorially in August 2010.
1. Scope
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
2. Referenced Documents
2.1 ASTM Standards:
D123 Terminology Relating to Textiles
D578 Specification for Glass Fiber Strands
D1776 Practice for Conditioning and Testing Textiles
D2408 Test Method for Finish Content of Woven Glass Fabric, Cleaned andAfter-Finished withAmino-Silane-Type Finishes,
for Plastic Laminates
D2409 Test Method for Finish Content of Woven Glass Fabric, Cleaned and After-Finished with Vinyl-Silane-Type Finishes,
for Plastic Laminates
D2410 TestMethodforFinishContentofWovenGlassFabric,CleanedandAfter-FinishedwithChromeComplexes,forPlastic
Laminates
D2660 Test Method for Finish Content of Woven Glass Fabric, Cleaned andAfter-Finished withAcrylic-Silane-Type Finishes,
for Plastic Laminates
D3098 TestMethodforFinishContentofWovenGlassFabric,CleanedandAfterFinishedwithEpoxy–FunctionalSilane-Type
Finishes for Plastic Laminates Method of Test for Finish Content of Woven Glass Fabrics, Cleaned and After-Finished with
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 Dec. 1, 2004. Published January 2005. Originally approved in 1984. Last previous edition approved in 1999 as D4389–99. DOI:
10.1520/D4389-04.on Glass Fiber and its Products.
Current edition approved June 1, 2010. Published August 2010. Originally approved in 1984. Last previous edition approved in 2004 as D4389 – 04. DOI:
´1
10.1520/D4389-04R10 .
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Available from American National Standards Institute 11 W. 42nd St., 13th Floor, New York, NY 10036.
Withdrawn. The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
´1
D4389/D4389M – 04 (2010)
Epoxy-Functions Silane Type Finishes for Plastic Laminates
D3773 Test Methods for Length of Woven Fabric
D3774 Test Method for Width of Textile Fabric
D3775 Test Method for Warp (End) and Filling (Pick) Count of Woven Fabrics
D3776 Test Methods for Mass Per Unit Area (Weight) of Fabric
D4029 Specification for Finished Woven Glass Fabrics
D4963 Test Method for Ignition Loss of Glass Strands and Fabrics
D7018 Terminology Relating to Glass Fiber and Its Products
2.2 ANSI Standard:
ANSI/ASQC Z1.4 Sampling Procedures for Inspection by Attributes
3. Terminology —
3.1For all terminology under the jurisdiction of Subcommittee D13.18 (continuous filament yarn, roving), refer to Terminology
3.1 For definitions of glass fiber and product terms used in this specification refer to Terminology D7018.
3.1.1 The following terms are relevant to this standard: continuous filament yarn, roving.
3.2 For definitions of other textile terms used in this specification, refer to Terminology D123.
CLASSIFICATION
4. Classification
4.1 Designation of Woven Roving Fabric— The basic designations for glass woven roving fabric is by mass per unit area and
is given in grams per square metre (ounces per square yard). Historically, an ASTM type number has been used by the industry.
These numbers have been sequentially assigned as new woven roving constructions as they were added to this specification.
Numbers, 1 through 10, are shown in Table 1 with the relationship to mass per unit area and fabric count.
REQUIREMENTS
5. Material
5.1 The roving shall be continuous filament fiber, free of any free alkali, such as sodium or potassium metal salts and foreign
particles, dirt, and other impurities. It shall be an E type glass as defined in Specification D578.
5.1.1 The fabric shall be uniformly woven, have uniform color, overall cleanness, and no objectionable odor.
6. Fabric Count
6.1 For woven roving fabrics listed inTable 1, the average fabric count shall conform to the requirements ofTable 1. For woven
roving fabrics not listed in Table 1, the average fabric count shall be agreed upon between the purchaser and the supplier.
7. Yarn Designations
7.1 For woven roving fabrics, the roving designations shall be as agreed upon between the purchaser and the supplier. The
requirements of the individual elements of the designation are specified in Sections 8-10.
Available from American National Standards Institute 11 W. 42nd St., 13th Floor, New York, NY 10036.
TABLE 1 Physical Properties of Generally Available “E” Glass Finished Woven Roving Fabrics
A
Roving
Construction
Nominal
Count Standard Roll
Nominal Roving Length Per Unit Mass
Mass Per
ASTM
25.4 mm Length
Weave
Unit Area
Type
Tex yd/lb
(1 in.) min
2 2
g/m oz/yd Warp Fill Warp Fill Warp Fill m yd
1 Plain 441 13.0 10 4 840 to 755 1065 to 925 590 to 655 465 to 535 91.5 100
2 Plain 542 16.0 10 4 840 to 755 1680 to 1505 590 to 655 295 to 330 91.5 100
3 Plain 831 24.5 5 4 2360 to 2065 2680 to 2255 210 to 240 185 to 220 68.5 75
4 Plain 831 24.5 5 3 2360 to 2065 3545 to 3105 210 to 240 140 to 160 68.5 75
5 Plain 915 27.0 5 2.5 2360 to 2065 4960 to 4725 210 to 240 100 to 105 59.5 65
6 Plain 610 18.0 7 6 1210 to 1835 1340 to 1155 410 to 270 370 to 430 68.5 75
7 Plain 745 22.0 5 4 2360 to 2065 2155 to 1910 210 to 240 230 to 260 68.5 75
8 Plain 610 18.0 4 4 2360 to 2065 1655 to 1505 210 to 240 300 to 330 68.5 75
9 Plain 559 16.5 5 4 1710 to 1525 1710 to 1525 290 to 325 290 to 325 91.5 100
10 Plain 711 21.0 4 4 2420 to 2155 2420 to 2155 205 to 230 205 to 230 82.5 90
A
In some cases, the fill yarn may be woven as 2 picks per shed and as 1 fill yarn. The basic roving length per unit area used to produce the above fill yarns should
be doubled.
´1
D4389/D4389M – 04 (2010)
8. Yarn Number
8.1 For woven roving fabrics listed in Table 1, the average size-free yarn numbers of the yarns designated shall conform to the
requirements of Table 1. For woven roving fabrics not listed in Table 1, the average size-free yarn numbers shall be agreed upon
between the purchaser and the supplier.
9. Filament Diameter
9.1 The range of values for the filament diameters are listed in Table 2. The average filament diameter for the rovings in the
woven roving fabric shall be within the interval listed in Table 2.
10. Strand Construction
10.1 The construction of the component strands shall be agreed upon between the purchaser and the supplier.
11. Weave Type
11.1 ForwovenrovingfabricslistedinTable1,theweavetypeshallbeplainweave.ForwovenrovingfabricsnotlistedinTable
1, the weave type shall be agreed upon between the purchaser and the supplier.
12. Mass per Unit Area
12.1 For woven roving fabrics listed in Table 1, the average mass per unit area shall conform to the requirements of Table 1.
For woven roving fabrics not listed in Table 1, the average mass per unit area shall be agreed upon between the purchaser and the
supplier.Theaveragemassperunitareaforthelotshallbewithintheinterval:specifiedmassperunitarea 610 %ofthespecified
mass per unit area.
13. Width
13.1 Fabric width shall be agreed upon between the purchaser and the supplier. The fabric width, including both selvages but
excluding any feathered edges, shall not be less than the specified width and no more than 13 mm (0.5 in.) wider than the specified
width.
NOTE 3—During the processing of glass fabrics, the selvages may be slit to minimize tension influences.This slit distance is excluded when measuring
the fabric width unless otherwise agreed upon between the purchaser and the supplier.
14. Length
14.1 For woven roving fabrics listed in Table 1, the fabric length on each roll shall not be less than2m(2yd) below the
requirements listed in Table 1 unless otherwise agreed upon between the purchaser and the supplier. For woven roving fabrics not
listed in Table 1, the fabric length on each roll shall be agreed upon between the purchaser and the supplier.
14.2 No piece of woven roving fabric shall be less than 14 m (15 yd) long and there shall be no more than two pieces in a roll,
unless otherwise agreed upon between the purchaser and the supplier.
14.3 None of the sample rolls shall contain more than the allowable pieces, and the combined length of all of the sample rolls
shall not be less than the combined lengths given on the identification labels of the sample rolls.
15. Ignition Loss
15.1 Theorganiccontentofwovenrovingfabricshallbenolessthan0.075 %andnomorethan0.25 %unlessotherwiseagreed
upon between the purchaser and the supplier.
15.2 The type of, level of, and tolerances for roving finish shall be agreed upon between the purchaser and the supplier. The
roving finish should be compatible with, and produce the required performance characteristics for the resin system specified in the
applicable laminate specification or other procurement document. If the purchaser and the supplier agree that laminate testing (wet
and dry) is to be used to determine acceptability of the finish content, this fact and the test method shall be specified in the
contracting document.
TABLE 2 Letter Designation for Average Fiber Diameter Range of
Glass Roving Used in Woven Roving Fabrics
SI Units US Customary Units
Letter
Diameter in Micrometres Diameter in Inches
Designation
At Least Below At Least Below
G 8.9 10.2 0.00035 0.00040
H 10.2 11.4 0.00040 0.00045
J 11.4 12.7 0.00045 0.00050
K 12.7 14.0 0.00050 0.00055
L 14.0 15.2 0.00055 0.00060
M 15.2 16.5 0.00060 0.00065
N 16.5 17.8 0.00065 0.00070
P 17.8 19.0 0.00070 0.00075
T 22.8 24.2 0.00090 0.00095
´1
D4389/D4389M – 04 (2010)
16. Fabric Appearance
16.1 The woven roving fabric shall be generally uniform in quality and condition, clean, smooth, and free of foreign particles
and defects detrimental to fabrication, appearance, or performance.
16.2 The fabric in the laboratory sample for the fabric appearance shall be examined for the defects listed in Table 3 and the
acceptable quality levels (AQLs) shall be 6.5 total defects per hundred units of fabric unless otherwise agreed upon between the
purchaser and the supplier.
16.3 When specified, the warp direction of the fabric shall be marked by blue direction-indicator yarns running warpwise in the
cloth and spaced approximately 150 mm (6 in.) apart.
17. Put-Up
17.1 Woven roving fabric shall be furnished in rolls and shall be wound on spiral tubes measuring 76.2-mm (3-in.) minimum
inside diameter and 25 mm (1 in.) longer than the overall width of the fabric, unless otherwise specified. The maximum number
of pieces contained in any roll shall be as specified in 18.1.
17.2 Unless otherwise agreed upon, as when specified in an applicable material specification, each roll shall be packed in a
sealed, vapor-tight bag of polyethylene not less than 0.05 mm (0.002 in.) thick in such a manner as to ensure that the fabric, during
shipment and storage, will be protected against damage from exposure to moisture, weather, or any other normal hazard.
NOTE 4—Once opened by the user, if the roll is not totally consumed, it is good practice to rebag the roll, add desiccant, and seal the bag.
18. Packaging
18.1 Each roll of woven roving fabric, put up as specified, shall be packaged to afford adequate protection against physical
damage during shipment from the supply source to the receiving activity.The supplier may use his standard practice when it meets
this requirement.
19. Marking
19.1 Each package shall be marked to show the following information unless specified otherwise between the purchaser and the
supplier. Characters shall be of such size as to be clearly legible and shall not be obliterated by normal handling:
100 % Fiber Glass Woven Roving Cloth
Glass Type E
Fabric Type
Length
Width
Purchase Order Number
Manufacturers Identification
Finish Designation
SAMPLING AND CONDITIONING
20. Sampling
20.1 Lot Size—A lot shall consist of each 90
...