ASTM D4030/D4030M-23

Standard Specification for Glass Fiber Cord and Sewing Thread

ABSTRACT
This specification covers the requirements for continuous glass filament sewing thread and untreated and neoprene treated, continuous filament cord; intended to assist ultimate users by designing the types of these products that are typical in the industry. The fiber shall be electrical grade, free of any free alkali metal oxides, such as soda or potash, and foreign particle, dirt, and other impurities. The glass fiber cord or sewing thread shall be wound on tubes, spools, or cones and shall conform to the following requirements: filament diameter; yarn number; strand construction; twist direction; twist level; breaking strength; yarn diameter; twist balance; and ignition loss. The cord and the sewing thread shall also undergo visual examination to check for defects such as cut, spot or stain, and embedded foreign matter.
SCOPE
1.1 This specification covers the requirements for continuous glass filament sewing thread; and continuous filament cord, untreated and neoprene treated.  
1.2 This specification is intended to assist ultimate users by designating the types of these products that are typical in the industry.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems will result in nonconformance with the standard.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-May-2023
• ICS: 59.100.10 - Textile glass materials
• Technical Committee: D13 - Textiles
• Drafting Committee: D13.18 - Glass Fiber and its Products

Relations

• Refers: ASTM D1776/D1776M-20 - Standard Practice for Conditioning and Testing Textiles
• Effective Date: 01-Feb-2020

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D4030/D4030M − 23
Standard Specification for
1
Glass Fiber Cord and Sewing Thread
This standard is issued under the fixed designation D4030/D4030M; 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.
1. Scope D4963/D4963M Test Method for Ignition Loss of Glass
Fiber Strands and Fabrics
1.1 This specification covers the requirements for continu-
D7018/D7018M Terminology Relating to Glass Fiber and
ous glass filament sewing thread; and continuous filament cord,
3
Its Products (Withdrawn 2021)
untreated and neoprene treated.
2.2 ANSI Standard:
1.2 This specification is intended to assist ultimate users by
ANSI/ASQC Z1.4 Sampling Procedures for Inspection by
designating the types of these products that are typical in the
4
Attributes
industry.
1.3 The values stated in either SI units or inch-pound units
3. Terminology
are to be regarded separately as standard. The values stated in
each system are not exact equivalents; therefore, each system 3.1 For all terminology under the jurisdiction of Subcom-
mittee D13.18 (cord, neoprene treated, sewing thread, twist
shall be used independently of the other. Combining values
from the two systems will result in nonconformance with the balance, untreated), refer to Terminology D7018/D7018M.
standard.
3.2 For definitions of other textile terms used in this
1.4 This standard does not purport to address all of the
specification, refer to Terminology D123.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Designation of Construction
priate safety, health, and environmental practices and deter-
4.1 The yarn designations of fiber glass cords and sewing
mine the applicability of regulatory limitations prior to use.
threads are specified as directed in Specification D578/D578M
1.5 This international standard was developed in accor-
except that for the cords either the letter “U” or the letter “N”
dance with internationally recognized principles on standard-
is added to the last segment of the designation.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- 4.1.1 Cord designations include a type number that de-
mendations issued by the World Trade Organization Technical
scribes the relative diameter of the cords and treatment. The
Barriers to Trade (TBT) Committee. first character of this designation is a numeral from 1 to 10 that
indicates the relative diameter of the cord to other cords, that is,
2. Referenced Documents
2 is larger than 1, 3 is larger than 2, etc. The second character
2
2.1 ASTM Standards:
of this designation is the letter “U” or the letter “N”. The “U”
D123 Terminology Relating to Textiles
indicates that the cord is untreated, and the “N” indicates that
D204 Test Methods for Sewing Threads
the cord is neoprene treated. The type number for cord is
D578/D578M Specification for Glass Fiber Strands
included in Tables 1 and 2 to show its relationship to
D1423/D1423M Test Method for Twist in Yarns by Direct-
designation.
Counting
4.1.2 Sewing thread construction includes a type number
D1776/D1776M Practice for Conditioning and Testing Tex-
that describes a manufacturer’s code and the size. The second
tiles
character is a numeral and indicates the relative diameter of the
sewing threads, that is, 4 is larger than 2, 6 is larger than 4, etc.
1
This specification is under the jurisdiction of ASTM Committee D13 on
This type number for sewing thread is included in Table 3 to
Textiles and is the direct responsibility of Subcommittee D13.18 on Glass Fiber and
show its relationship to designation.
its Products.
Current edition approved June 1, 2023. Published August 2023. Originally
approved in 1981. Last previous edition approved in 2015 as D4030/D4030M – 15.
DOI: 10.1520/D4030_D4030M-23.
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.
4
Standards volume information, refer to the standard’s Document Summary page on Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 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

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...

This document is not an ASTM standard and is intended only to provide the user of an ASTM 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: D4030/D4030M − 15 D4030/D4030M − 23
Standard Specification for
1
Glass Fiber Cord and Sewing Thread
This standard is issued under the fixed designation D4030/D4030M; 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.
1. Scope
1.1 This specification covers the requirements for continuous glass filament sewing thread; and continuous filament cord,
untreated and neoprene treated.
1.2 This specification is intended to assist ultimate users by designating the types of these products that are typical in the industry.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system mayare not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from
the two systems maywill result in nonconformance with the standard.
1.4 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 healthsafety, health, and environmental practices and determine
the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D123 Terminology Relating to Textiles
D204 Test Methods for Sewing Threads
D578D578/D578M Specification for Glass Fiber Strands
D1423D1423/D1423M Test Method for Twist in Yarns by Direct-Counting
D1776D1776/D1776M Practice for Conditioning and Testing Textiles
D4963D4963/D4963M Test Method for Ignition Loss of Glass Fiber Strands and Fabrics
3
D7018D7018/D7018M Terminology Relating to Glass Fiber and Its Products (Withdrawn 2021)
2.2 ANSI Standard:
4
ANSI/ASQC Z1.4 Sampling Procedures for Inspection by Attributes
1
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 its Products.
Current edition approved Feb. 1, 2015June 1, 2023. Published April 2015August 2023. Originally approved in 1981. Last previous edition approved in 20092015 as
ε1
D4030 – 09D4030/D4030M – 15. . DOI: 10.1520/D4030_D4030M-15.10.1520/D4030_D4030M-23.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM 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.
3
The last approved version of this historical standard is referenced on www.astm.org.
4
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

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D4030/D4030M − 23
3. Terminology
3.1 For all terminology under the jurisdiction of Subcommittee D13.18 (cord, neoprene treated, sewing thread, twist balance,
untreated), refer to Terminology D7018D7018/D7018M.
3.2 For definitions of other textile terms used in this specification, refer to Terminology D123.
4. Designation of Construction
4.1 The yarn designations of fiber glass cords and sewing threads are specified as directed in Specification D578D578/D578M
except that for the cords either the letter “U” or the letter “N” is added to the last segment of the designation.
4.1.1 Cord designations may include a type number that describes the relative diameter of the cords and treatment. The first
character of this designation is a numeral from 1 to 10 that indicates the relative diameter of the cord to other cords, that is, 2 is
larger than 1, 3 is larger than 2, etc. The second character of this designation is the letter “U” or the letter “N”. The “U” indicates
that the cord is untreated, and the “N” indicates that the cord is neoprene treated. The type number for cord is included in Tables
1 and 2 to show its relationship to designation.
4.1.2 Sewing thread construction includes a ty
...