1、Designation:D611919Standard Practice forCreating Surface Appearance Changes in Pile Yarn FloorCovering from Foot Traffic1This standard is issued under the fixed designation D6119;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the ye
2、ar 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.1.Scope1.1 This practice covers the trafficking of pile yarn floorcoverings in a laboratory in order to effect a change in surfa
3、ceappearance as a result of exposure to foot traffic undercontrolled conditions.A separate test method,D7330,coversthe assessment of surface appearance change using the Carpetand Rug Institute Reference Scales.21.2 This practice is applicable to most changes in surfaceappearance observed in all type
4、s of carpet that are intended forresidential or commercial use.It eliminates change in appear-ance associated with soiling by focusing on appearance changedue to matting,flattening,or change in pile fiber configuration.Although“pile reversal”or“watermarking”is occasionallyvisible,this practice is no
5、t a reliable method for producing thisphenomenon.1.3 This practice may be used by mutual agreement betweenthe purchaser and supplier to set purchasing specifications.1.4 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to
6、 SI units that are provided for information onlyand are not considered standard.1.5 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,health,and environmental practi
7、ces and deter-mine the applicability of regulatory limitations prior to us-e.Specific precautionary statements are given in Section 7.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles
8、for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:3D123 Terminology Relating to TextilesD5684 Terminology Relating to Pile Floor CoveringsD7330 Test Method
9、 for Assessment of Surface AppearanceChange in Pile Floor Coverings Using Standard ReferenceScales3.Terminology3.1 For definitions of terms relating to Pile Floor Coverings,refer to Terminology D5684.3.1.1 The following terms are relevant to this standard:carpet,change in surface appearance,crush,fi
10、nished,finishedpile yarn floor covering,floor covering,foot traffic units,lossof tuft definition,matting,pile,pile reversal,pile yarn floorcovering,textile floor covering,tufted fabric.3.2 For all other terminology related to textiles,refer toTerminology D123.4.Summary of Practice4.1 Test specimens
11、are exposed to a specified number offoot traffics under controlled conditions.5.Significance and Use5.1 By exposure to sufficient foot traffic,this practice can beapplied to any pile yarn floor covering which undergoeschanges in surface appearance.5.1.1 This practice does not simulate surface appear
12、ancechanges due to soiling,pivoting,or rolling traffic,or traffic onstairs.6.Apparatus6.1 Area for Foot TraffcA room that meets the followingconditions:6.1.1 The floor must be level,rigid,and free of high and lowareas.Tile,concrete,or wood are satisfactory.This area shouldbe kept free of pedestrian
13、traffic other than the designatedwalkers.1This practice is under the jurisdiction ofASTM Committee D13 on Textiles andis the direct responsibility of Subcommittee D13.21 on Pile Floor Coverings.Current edition approved July 1,2019.Published August 2019.Originallyapproved in 1997.Last previous editio
14、n approved in 2012 as D611912.DOI:10.1520/D6119-19.2Available from CRI,P.O.Box 2048,Dalton,GA 30722,www.carpet-rug.org.3For 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 th
15、e standards Document Summary page onthe ASTM website.Copyright 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 De
16、cision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 6.1.2 The length of the test area shall be adequate for the testspecimens plus the carpet walk-off areas at both ends of eachrow of test specimens.These areas are necessary to align thewalkers to avoid twisting motion while stepping on the testspecimens,and shall be a minimum of 2 yards(2 m)long.6.1.3 The width of the tes
