1、Designation:D584820Standard Test Method forMass Per Unit Area of Pile Yarn Floor Coverings1This standard is issued under the fixed designation D5848;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number i
2、n parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers the measurement of mass perunit area of machine-made woven,knitted,and tufted pile yarnfloor covering both before and after
3、 an adhesive-back coatingapplication.1.2 This test method encompasses three techniques fordetermination of mass per unit area as applicable:1.2.1 Section 7,for determining total mass per unit area,applies to both coated and uncoated(unfinished)pile floorcoverings.1.2.2 Section 8,for determining comp
4、onent mass per unitarea,applies only to uncoated(unfinished)pile yarn floorcoverings.1.2.3 Section 9,for determining pile yarn mass per unit area,applies only to back-coated,or finished,pile yarn floorcoverings.1.3 Determination of mass per unit area of pile yarn floorcoverings was previously contai
5、ned within Test MethodsD418.For user convenience,Subcommittee D13.21 subdi-vided Test Methods D418 into separate standards,of which thistest method is one.1.4 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units t
6、hat are provided for information only(except where shown in 1.4.1)and are not considered standard.1.4.1 The following sections are measured in SI units:Table1,sections 9.8.4.2,9.8.6.3 to 9.8.6.10,A2.1,A2.2,and A2.3.1.5 This standard does not purport to address all of thesafety concerns,if any,associ
7、ated 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.Specific precautionary statements are given in 9.5.1.6 This international standard was de
8、veloped 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 TechnicalBarriers to Trade(TBT)Committee.2.Referenced Docum
9、ents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD418 Test Method for Testing Pile Yarn Floor CoveringConstruction(Withdrawn 1998)3D1193 Specification for Reagent WaterD1776 Practice for Conditioning and Testing TextilesD1909 Standard Tables of Commercial Moisture Regainsand Commercial A
10、llowances for Textile FibersD5684 Terminology Relating to Pile Floor CoveringsE122 Practice for Calculating Sample Size to Estimate,WithSpecified Precision,the Average for a Characteristic of aLot or ProcessD2904 Practice for Interlaboratory Testing of a Textile TestMethod that Produces Normally Dis
11、tributed Data(With-drawn 2008)3D2906 Practice for Statements on Precision and Bias forTextiles(Withdrawn 2008)33.Terminology3.1 For definitions of terms relating to Pile Floor Coverings,D13.21,refer to Terminology D5684.3.1.1 The following terms are relevant to this standard:backcoating,backing,back
12、ing fabric,binding sites,buried pileyarn,carpet,components,extractable matter,finished,finishedpile yarn floor covering,floor covering,multilevel pile,pile,pile yarn floor covering,pile yarn mass,pitch,primarybacking,secondary backing,stubble,textile floor covering,total mass,tufted fabric.3.2 For a
13、ll other terminology related to textiles,refer toTerminology D123.1This test method is under the jurisdiction ofASTM Committee D13 on Textilesand is the direct responsibility of Subcommittee D13.21 on Pile Floor Coverings.Current edition approved Feb.1,2020.Published June 2020.Originallyapproved in
14、1995.Last previous edition approved in 2010 as D5848 101whichwas withdrawn January 2019 and reinstated in February 2020.DOI:10.1520/D5848-20.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume i
15、nformation,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was d
16、eveloped in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.4.Significance and Use4.1 The determination of the mass per unit area of pile yarnfloor covering is useful in quality and cost control during themanufacture of pile floor covering.Both appearance andperformance may be a