ASTM_D_3887_-_96_2008.pdf

Designation:D388796(Reapproved 2008)Standard Specification forTolerances for Knitted Fabrics1This standard is issued under the fixed designation D3887;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope1.1 This specification covers test methods and tolerancesapplicable to the following properties of knitted fabrics:yield,mass(weight),width,length,fabric count,bursting strength,moisture regain,thickness,extractable matter,and fiber com-position.1.2 These tolerances are applicable to knitted fabrics of alltypes,such as warp knits,weft knits,flat bed knits,and soforth.1.3 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.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 TextilesD629 Test Methods for Quantitative Analysis of TextilesD2257 Test Method for Extractable Matter in TextilesD2494 Test Method for Commercial Mass of a Shipment ofYarn or Manufactured Staple Fiber or TowD2654 Test Method for Moisture in Textiles(Withdrawn1998)3D2720 Practice for Calculation of Commercial Weight andYield of Scoured Wool,Top,and Noil for Various Com-mercial CompositionsD3773 Test Methods for Length of Woven FabricD3774 Test Method for Width of Textile FabricD3776 Test Methods for Mass Per Unit Area(Weight)ofFabricD3786 Test Method for Bursting Strength of TextileFabricsDiaphragm Bursting Strength Tester MethodD3787 Test Method for Bursting Strength of TextilesConstant-Rate-of-Traverse(CRT)Ball Burst Test2.2 Other Documents:Textile Fiber Products Identification Act4Wool Products Labeling Act of 193952.3 Military Standard:6MIL-STD-105D Sampling Procedures and Tables for In-spection by AttributesNOTE1Reference to test methods in this specification give only thepermanent part of theASTM designation.The current editions of each testmethod cited shall prevail.3.Terminology3.1 Definitions:3.1.1 bursting strength,nthe force or pressure required torupture a fabric by distending it,when applied at right anglesto the plane of the fabric,under specified conditions.3.1.2 commercial mass,nbilled weight(mass)as deter-mined by a generally accepted method or as agreed uponbetween the purchaser and the seller.3.1.2.1 DiscussionThe basis for determining the commer-cial weight(mass)of a shipment of textile product is generallyone of the following:(1)Man-Made Fibers:(a)CMRU Basis(commercial moisture regain with un-scoured material)the weight(mass)of unscoured,moisture-free textile product plus the weight(mass)corre-sponding to its commercial moisture regain.(b)CMRS Basis(commercial moisture regain withscoured material)the weight(mass)of moisture-free tex-tile product after scouring by definite prescribed methods1This specification is under the jurisdiction of ASTM Committee D13 onTextiles and is the direct responsibility of Subcommittee D13.61 on Apparel.Current edition approved Aug.1,2008.Published October 2008.Originallyapproved in 1980.Last previous edition approved in 2004 as D3887 96(2004).DOI:10.1520/D3887-96R08.2For 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.4Act of Congress,“Textile Fiber Products Identification Act,”85th Congress,Second Session,approved Sept.2,1958.5Act of Congress,“Wool Products LabellingAct of 1939,”76th Congress,ThirdSession,approved Oct.14,1939.6Available from Standardization Documents Order Desk,Bldg.4 Section D,700Robbins Ave.,Philadelphia,PA 19111-5098.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 plus the weight corresponding to its commercial moistureregain.(c)CAS Basis(commercial allowance with scouredmaterial)the weight(mass)of moisture-free textile prod-uct after scouring by definite prescribed methods plus theweight corresponding to its commercial allowance.(d)UN Basis(unadjusted net)the weight(mass)ofunscoured textile product with no adjustment for the amountof moisture or finish,or both.(2)Wool:(a)CC Basis(commercial composition)the weight(mass)of wool base as determined by definite prescribedmethods plus the weights(masses)of moisture and othercomponents corresponding to the commercial