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.
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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 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.
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 health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ANSI/ASQC Z1.4 Sampling Procedures for Inspection by Attributes Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
D123 Terminology Relating to Textiles
D204 Test Methods for Sewing Threads
D578 Specification for Glass Fiber Strands
D1423 Test Method for Twist in Yarns by Direct-Counting
D1776 Practice for Conditioning and Testing Textiles
D4963 Test Method for Ignition Loss of Glass Strands and Fabrics
D7018 Terminology Relating to Glass Fiber and Its Products
appearance; construction; designation; diameter; glass cords; glass sewing threads; ignition loss; length per unit mass; organic content; yarn number; Appearance of textile materials/applications; Construction--textile fabrics/fibers; Cord/cordage; Glass--specifications; Glass fabrics/fibers/textile products--specifications; Glass sewing threads; Organic matter content--textiles; Sewing thread; Textile fabrics/fibers--specifications; Twist--textiles; Twist balance; Yarn number;
ICS Number Code 59.100.10 (Textile glass materials)
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