ASTM_D_581_-_D_581M_-_12.pdf

Designation:D581/D581M12Standard Specification forGlass Fiber Greige Braided Tubular Sleeving1This standard is issued under the fixed designation D581/D581M;the number immediately following the designation indicates the yearof 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.Scope1.1 This specification covers the requirements for continu-ous glass filament greige braided tubular sleeving and issuitable for use as electrical insulation and for structural andmechanical applications.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 non-conformancewith 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 TextilesD350 Test Methods for Flexible Treated Sleeving Used forElectrical InsulationD578 Specification for Glass Fiber StrandsD579 Specification for Greige Woven Glass FabricsD1059 Test Method for Yarn Number Based on Short-Length Specimens(Withdrawn 2010)3D1423 Test Method for Twist in Yarns by Direct-CountingD1776 Practice for Conditioning and Testing TextilesD1907 Test Method for Linear Density of Yarn(Yarn Num-ber)by the Skein MethodD3773 Test Methods for Length of Woven FabricD3775 Test Method for Warp(End)and Filling(Pick)Countof Woven FabricsD4963 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 byAttributes43.Terminology3.1 For all terminology related to D13.18,Glass Fiber andIts Products,see Terminology D7018.3.1.1 The following terms are relevant to this standard”braid,carrier,continuous filament yarn,greige goods,sleeving,and tubing.3.2 For all other terminology related to textiles,see Termi-nology D123.4.Tubing Classifications4.1 Glass fiber greige braided tubular sleeving is producedin one type and two styles within that type and uses yarnsdesignated as directed in Specification D578.The standardtype and styles are:4.1.1 Type GGlass fiber greige braided tubular sleeving.4.1.2 Style AGlass fiber greige braided tubular sleevinghaving a nominal wall thickness of 0.20 mm 0.008 in.4.1.3 Style BGlass fiber greige braided tubular sleevinghaving a nominal wall thickness of 0.15 mm 0.006 in.REQUIREMENTS5.Material5.1 All yarns for braided tubular sleeving shall be electricalclassification,(E glass),continuous filament glass yarns,andshall fall within the chemical composition that is utilized for1This 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 July 1,2012.Published August 2012.Originallyapproved in 1940 T.Last previous edition approved in 2007 as D581 07.DOI:10.1520/D0581_D0581M-12.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from American National Standards Institute,11 W.42nd St.,13thFloor,New York,NY 10036.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 general applications as described in Specification D578,Sec-tion 4.2.2.Filament size shall be agreed upon between pur-chaser and supplier and shall meet the requirements of Speci-fication D578,Table 1 Letter Designations for Glass StrandFilament Diameters.5.1.1 The fiber shall be free of any free alkali metal oxides,such as soda or potash,and foreign particles,dirt,and otherimpurities.6.Yarn Number6.1 The nominal yarn number of the yarns in the braidedtubular sleeving shall be agreed upon between the purchaserand the supplier.The average yarn number shall fall within theinterval:nominal yarn number6 10%of the nominal yarnnumber.7.Strand Construction7.1 The basis for specifying strand construction is given inSpecification D578.The construction of the component strandsshall be agreed upon between the purchaser and the supplier.8.Direction of Twist8.1 Unless otherwise agreed upon between the purchaserand the supplie