ASTM D5823-05a

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D5823 − 05a
StandardTest Method for
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Tuft Height of Pile Floor Coverings
This standard is issued under the fixed designation D5823; 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 4. Summary of Test Method
4.1 Forcutpilefloorcovering,individualtuftlegspecimens
1.1 This test method covers the determination of tuft height
using a grooved specimen holder. It applies to cut-pile and of like character (either cut or loop and of uniform height) are
loop-pile floor covering after adhesive backing has been cut as closely as possible to the surface of the backing of a pile
applied to bond the pile yarn to the backing fabric. floor covering sample and placed, one at a time, in a grooved
specimen holder that maintains the tuft yarn in a straight line
1.2 The values stated in SI units are to be regarded as the
while the length of the tuft leg is measured using a graduated
standard for all measurements. The inch-pound values are
scale and a magnifying glass.
provided for information purposes only.
4.2 For loop pile floor covering, the two tuft legs forming
1.3 This standard does not purport to address all of the
the loop are each severed from the adjacent binding sites at the
safety concerns, if any, associated with its use. It is the
backing surface to provide a specimen of twice the tuft height
responsibility of the user of this standard to establish appro-
and the length measured as in 4.1.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5. Significance and Use
5.1 This test method is useful in quality and cost control
2. Referenced Documents
during the manufacture of pile yarn floor covering. Both
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2.1 ASTM Standards:
appearance and performance can be affected by changes in the
D123Terminology Relating to Textiles
tuft height.
D1909Standard Table of Commercial Moisture Regains for
5.1.1 In case of a dispute arising from differences in
Textile Fibers
reportedtestresultswhenusingthistestmethodforacceptance
D5684Terminology Relating to Pile Floor Coverings
testing of commercial shipments, the purchaser and the sup-
E122PracticeforCalculatingSampleSizetoEstimate,With
plier should conduct comparative tests to determine if there is
Specified Precision, the Average for a Characteristic of a
a statistical bias between their laboratories. Competent statis-
Lot or Process
tical assistance is recommended for the investigation of bias.
As a minimum, the two parties should take a group of test
3. Terminology
specimens that are as homogeneous as possible and are from a
3.1 For all terminology related to Pile Floor Coverings,
lot of material of the type in question. The test specimens
D13.21, refer to Terminology D5684.
should then be randomly assigned in equal numbers to each
3.1.1 The following terms are relevant to this standard:
laboratory for testing. The average results from the two
finished, finished pile yarn floor covering, floor covering, level
laboratories should be compared using Student’s t-test for
pile, loop pile yarn floor covering, pile, pile yarn floor
unpaireddataandanacceptableprobabilitylevelchosenbythe
covering, textile floor covering, tuft height, tuft leg, tufted
two parties before testing is begun. If a bias is found, either its
fabric.
cause must be found and corrected or the purchaser and the
suppliermustagreetointerpretfuturetestresultsinviewofthe
3.2 For all other terminology related to textiles see Termi-
nology D123. known bias.
6. Apparatus
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ThistestmethodisunderthejurisdictionofASTMCommitteeD13onTextiles
6.1 GroovedSpecimenHolder,havingalengthatleast10%
and is the direct responsibility of Subcommittee D13.21 on Pile Floor Coverings.
longer than the longest tuft element to be measured.
Current edition approved Sept. 1, 2005. Published October 2005. Originally
6.1.1 Specimen Holder, 100-mm (4-in.) long, has been
approved in 1995. Last previous edition approved in 2005 as D5823–05. DOI:
10.1520/D5823-05A.
found satisfactory for this purpose.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.1.2 The grooves shall have a V-shaped cross-section with
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
a 1.05 rad (60°) angle at the bottom and widths across the top
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. to accommodate several size yarns as follows:
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