1、Designation:D3775171Standard Test Method forEnd(Warp)and Pick(Filling)Count of Woven Fabrics1This standard is issued under the fixed designation D3775;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number
2、 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 U.S.Department of Defense.1NOTEIn 6.2,(16-in.)was corrected to(116-in.)editorially in March 2018.
3、1.Scope1.1 This test method covers the measurement of end(warp)and pick(filling)count and is applicable to all types of wovenfabrics.NOTE1Historically,the term fabric count has been used to describethe end and pick count of woven fabrics.The terms end count and pickcount are replacing the term fabri
4、c count,to provide clarity.1.2 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.2.1 Throughout this document,there will be some in-stances in which the units do not convert 1:1.This is toacknowledge that this is a global docume
5、nt and that differentparts of the world use different units of measurement.Organi-zations using the metric system wil report the count per 1 cm.Organizations using the English system will report the countper 1 in.1.3 This standard does not purport to address all of thesafety concerns,if any,associat
6、ed with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health and environmental practices and deter-mine the applicability of regulatory limitations prior to use.NOTE2For a current test method for the wale and course count ofweft knitted fabrics,refer t
7、o Test Method D8007.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization T
8、echnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD1776 Practice for Conditioning and Testing TextilesD4850 Terminology Relating to Fabrics and Fabric TestMethodsD7023 Terminology Relating to Home FurnishingsD8007 Test Method for W
9、ale and Course Count of WeftKnitted Fabrics2.2 Other Standard:ANSI/ASQC Z1.4Inspection by Attributes33.Terminology3.1 For all terminology related to D13.59,Fabric TestMethods,General,refer to Terminology D48503.1.1 The following terms are relevant to this standard:count,end,end count,filling,pick,pi
10、ck count,thread count.3.2For all terminology related to Home Furnishings,referto Terminology D7023.3.3 For all other terms related to textiles,refer to Terminol-ogy D123.4.Summary of Test Method4.1 The number of ends per unit distance and picks per unitdistance are determined using suitable magnifyi
11、ng and count-ing devices or by raveling yarns from fabrics.See ANSI Z1.4.5.Significance and Use5.1 This test method is considered satisfactory for accep-tance testing of commercial shipments because it has been usedextensively in the trade for that purpose.1This test method is under the jurisdiction
12、 of ASTM Committee D13 on FabricTest Methods,SpecificCurrent edition approved Sept.1,2017.Published September 2017.ReplacesSections 28 to 34 of Methods D1910 64(1975).Originally approved in 1979.Lastprevious edition approved in 2012 as D3775 12.DOI:10.1520/D3775-17.2For referenced ASTM standards,vis
13、it the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer tot he standards Document Summary page onthe ASTM website.3Available from American National Standards Institute,11 W.42nd St.,13thFloor,New York,NY 10036.Copy
14、right ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International
15、Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 5.1.1 If there are differences of practical significance be-tween reported test results for two laboratories(or more),comparative test should be performed to determine if there is
16、astatistical bias between them,using competent statistical assis-tance.As a minimum,use the samples for such a comparativetest that are as homogeneous as possible,drawn from the samelot of material as the samples that resulted in disparate resultsduring initial testing and randomly assigned in equal numbersto each laboratory.The test results from the laboratoriesinvolved should be compared using a statistical test forunpaired data,a probability level chosen prior to the testingseries.If bias is
