ASTM_D_3374_-_D_3374M_-_14.pdf

Designation:D3374/D3374M14Standard Specification forVinyl-Coated Glass Yarns1This standard is issued under the fixed designation D3374/D3374M;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This specification covers vinyl-coated glass yarns.These yarns are manufactured in two basic classes.Theseclasses have been established that when properly woven intoscreening,satisfactory strength,durability,and insect protec-tion are obtained.The two classes are as follows:1.1.1 Class 1Nominal thickness 0.292 mm 0.0115 in.1.1.2 Class 2Nominal thickness 0.330 mm 0.0130 in.1.2 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 non-conformancewith the standard.1.3 The following precautionary statement pertains only tothe test method portions,Sections 1221,of this specification.This standard does not purport to address all of the safetyconcerns,if any,associated with its use.It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD578 Specification for Glass Fiber StrandsD1907 Test Method for Linear Density of Yarn(Yarn Num-ber)by the Skein MethodD2256 Test Method for Tensile Properties of Yarns by theSingle-Strand MethodD4329 Practice for Fluorescent Ultraviolet(UV)Lamp Ap-paratus Exposure of PlasticsD4963 Test Method for Ignition Loss of Glass Strands andFabricsD7018 Terminology Relating to Glass Fiber and Its Products2.2 ANSI/ASQC Standards:ANSI/ASQC Z1.4 Sampling Procedures for Inspection byAttributes3ANSI/ASQC Z1.9 Sampling Procedures and Tables for In-spection by Variables for Percent Nonconforming32.3 Federal Standard:CCC-D-950 Specification,Dyeing and After Treating Pro-cesses for Cotton Cloths42.4 AATCC Standard:Evaluation Procedure 1,Gray Scale for Color Change53.Terminology3.1 Definitions:3.1.1 For all terminology under the jurisdiction of Subcom-mittee D13.18,refer to Terminology D7018.3.1.1.1 The following terms are relevant to this standard:moisture equilibrium,vinyl-coated glass yarn.3.1.2 For terminology of other textile terms used in thisspecification,refer to Terminology D123.4.Sampling and Number of Specimens4.1 Lot SampleAs a lot sample for acceptance testing,takeat random the number of yarn packages directed in anapplicable material specification or other agreement betweenthe purchaser and the supplier.Consider yarn packages to bethe primary sampling unit.In the absence of such agreement,proceed as follows:4.1.1 Yarn Number,Ignition Loss,and Breaking ForceTake the number of yarn packages specified in ANSI/ASQZZ1.9 using the count of yarn packages in the lot as a measureof the lot size.1This 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.1,2014.Published March 2014.Originallyapproved in 1975.Last previous edition approved in 2007 as D3374 07.DOI:10.1520/D3374-14.2For 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,11 W.42nd St.,13thFloor,New York,NY 10036.4Available from General Services Administration,Specification and ConsumerInformation Distribution Section(WFSIS),Washington Navy Yard,Bldg.197,Washington,DC 20407.5Available from American Association of Textile Chemists and Colorists,P.O.Box 12215,Research Triangle Park,NC 27709.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.1.2 Color and WorkmanshipTake the number of yarnpackages specified in ANSI/ASQZ Z1.4 using the count ofyarn packages in the lot as a measure of the lot size.4.1.3 Color Stability to Accelerated WeatheringUse theyarn packages taken as a lot sample for strength,and yarnnumber as the lot sample for color stability to acceleratedweathering.NOTE1An adequate specification or other agreement between thepurchaser and the supplier requires taking into account the variabilitybetween shipping cartons,yarn packages,yarn within a shipping carton,and test specimens from a yarn package to produce a sampling plan withmeaningful producers risk,consumers risk,acceptable