ASTM D6119-19(2024)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D6119 − 19 (Reapproved 2024)
Standard Practice for
Creating Surface Appearance Changes in Pile Yarn Floor
Covering from Foot Traffic
This standard is issued under the fixed designation D6119; the number immediately following the designation indicates the year of
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. Scope 2. Referenced Documents
2.1 ASTM Standards:
1.1 This practice covers the trafficking of pile yarn floor
D123 Terminology Relating to Textiles
coverings in a laboratory in order to effect a change in surface
D5684 Terminology Relating to Pile Floor Coverings
appearance as a result of exposure to foot traffic under
D7330 Test Method for Assessment of Surface Appearance
controlled conditions. A separate test method, D7330, covers
Change in Pile Floor Coverings Using Standard Reference
the assessment of surface appearance change using the Carpet
Scales
and Rug Institute Reference Scales.
3. Terminology
1.2 This practice is applicable to most changes in surface
appearance observed in all types of carpet that are intended for
3.1 For definitions of terms relating to Pile Floor Coverings,
residential or commercial use. It eliminates change in appear-
refer to Terminology D5684.
ance associated with soiling by focusing on appearance change
3.1.1 The following terms are relevant to this standard:
due to matting, flattening, or change in pile fiber configuration.
carpet, change in surface appearance, crush, finished, finished
Although “pile reversal” or “watermarking” is occasionally
pile yarn floor covering, floor covering, foot traffic units, loss
visible, this practice is not a reliable method for producing this
of tuft definition, matting, pile, pile reversal, pile yarn floor
phenomenon.
covering, textile floor covering, tufted fabric.
1.3 This practice may be used by mutual agreement between
3.2 For all other terminology related to textiles, refer to
the purchaser and supplier to set purchasing specifications.
Terminology D123.
1.4 The values stated in inch-pound units are to be regarded
4. Summary of Practice
as standard. The values given in parentheses are mathematical
4.1 Test specimens are exposed to a specified number of
conversions to SI units that are provided for information only
foot traffics under controlled conditions.
and are not considered standard.
5. Significance and Use
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 5.1 By exposure to sufficient foot traffic, this practice can be
responsibility of the user of this standard to establish appro-
applied to any pile yarn floor covering which undergoes
priate safety, health, and environmental practices and deter- changes in surface appearance.
mine the applicability of regulatory limitations prior to us-
5.1.1 This practice does not simulate surface appearance
e.Specific precautionary statements are given in Section 7. changes due to soiling, pivoting, or rolling traffic, or traffic on
stairs.
1.6 This international standard was developed in accor-
dance with internationally recognized principles on standard-
6. Apparatus
ization established in the Decision on Principles for the
6.1 Area for Foot Traffıc—A room that meets the following
Development of International Standards, Guides and Recom-
conditions:
mendations issued by the World Trade Organization Technical
6.1.1 The floor must be level, rigid, and free of high and low
Barriers to Trade (TBT) Committee.
areas. Tile, concrete, or wood are satisfactory. This area should
be kept free of pedestrian traffic other than the designated
walkers.
This practice is under the jurisdiction of ASTM Committee D13 on Textiles and
is the direct responsibility of Subcommittee D13.21 on Pile Floor Coverings.
Current edition approved Jan. 1, 2024. Published January 2024. Originally For referenced ASTM standards, visit the ASTM website, www.astm.org, or
approved in 1997. Last previous edition approved in 2019 as D6119–19. DOI: contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
10.1520/D6119-19R24. Standards volume information, refer to the standard’s Document Summary page on
Available from CRI, P.O. Box 2048, Dalton, GA 30722, www.carpet-rug.org. the ASTM website.
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D6119 − 19 (2024)
6.1.2 The length of the test area shall be adequate for the test 6.3 Suitable Walk-Off Mats, used to eliminate tracking of
specimens plus the carpet walk-off areas at both ends of each contaminants.
row of test specimens. These areas are necessary to align the
6.4 Double-Faced, Pressure Sensitive Tape, or other means
walkers to avoid twisting motion while stepping on the test
which will hold the specimens in place and yet permit easy
specimens, and shall be a minimum of 2 yards
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