ASTM_D_4030_-_D_4030M_-_15.pdf

Designation:D4030/D4030M15Standard Specification forGlass Fiber Cord and Sewing Thread1This standard is issued under the fixed designation D4030/D4030M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers the requirements for continu-ous glass filament sewing thread;and continuous filament cord,untreated and neoprene treated.1.2 This specification is intended to assist ultimate users bydesignating the types of these products that are typical in theindustry.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in nonconformancewith the standard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD204 Test Methods for Sewing ThreadsD578 Specification for Glass Fiber StrandsD1423 Test Method for Twist in Yarns by Direct-CountingD1776 Practice for Conditioning and Testing TextilesD4963 Test Method for Ignition Loss of Glass Strands andFabricsD7018 Terminology Relating to Glass Fiber and Its Products2.2 ANSI Standard:ANSI/ASQC Z1.4 Sampling Procedures for Inspection byAttributes33.Terminology3.1 For all terminology under the jurisdiction of Subcom-mittee D13.18(cord,neoprene treated,sewing thread,twistbalance,untreated),refer to Terminology D7018.3.2 For definitions of other textile terms used in thisspecification,refer to Terminology D123.4.Designation of Construction4.1 The yarn designations of fiber glass cords and sewingthreads are specified as directed in Specification D578 exceptthat for the cords either the letter“U”or the letter“N”is addedto the last segment of the designation.4.1.1 Cord designations may include a type number thatdescribes the relative diameter of the cords and treatment.Thefirst character of this designation is a numeral from 1 to 10 thatindicates the relative diameter of the cord to other cords,that is,2 is larger than 1,3 is larger than 2,etc.The second characterof this designation is the letter“U”or the letter“N”.The“U”indicates that the cord is untreated,and the“N”indicates thatthe cord is neoprene treated.The type number for cord isincluded in Tables 1 and 2 to show its relationship todesignation.4.1.2 Sewing thread construction includes a type numberthat describes a manufacturers code and the size.The secondcharacter is a numeral and indicates the relative diameter of thesewing threads,that is,4 is larger than 2,6 is larger than 4,etc.This type number for sewing thread is included in Table 3 toshow its relationship to designation.REQUIREMENTS5.Material5.1 The fiber shall be electrical grade,free of any free alkalimetal oxides,such as soda or potash,and foreign particles,dirt,and other impurities.6.Designation6.1 The nominal designation of glass fibercords listed inTable 1 or Table 2 shall conform to the requirements of Table1 or Table 2.The nominal designation of glass fiber sewingthreads listed in Table 3 shall conform to the requirements ofTable 3.The nominal designations of other lass fibercords orsewing threads shall be agreed upon between the purchaser and1This specification is under the jurisdiction of ASTM Committee D13 onTextiles and is the direct responsibility of Subcommittee D13.18 on Glass Fiber andits Products.Current edition approved Feb.1,2015.Published April 2015.Originallyapproved in 1981.Last previous edition approved in 2009 as D4030 091.DOI:10.1520/D4030_D4030M-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available 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 States1 the supplier.The requirements of the individual elements of thedesignation are specified in Sections 7 9.7.Filament Diameter7.1 The nominal filament diameter of glass fiber cords shallbe designated by the letter designation“G”.The nominalfilament diameter of r glass fiber sewing threads shall bedesignated by the letter designation“B”to“DE”,as applicable.The numerical values associated with letter designations arespecified in Specification D578.The average