ASTM D5823-05

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
International (www.astm.org) for the latest information.
Designation:D5823–05
Standard Test Method for
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Tuft Height of Pile Floor Coverings
This standard is issued under the fixed designation D 5823; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope floor covering sample and placed, one at a time, in a grooved
specimen holder that maintains the tuft yarn in a straight line
1.1 This test method covers the determination of tuft height
while the length of the tuft leg is measured using a graduated
using a grooved specimen holder. It applies to cut-pile and
scale and a magnifying glass.
loop-pile floor covering after adhesive backing has been
4.2 For loop pile floor covering, the two tuft legs forming
applied to bond the pile yarn to the backing fabric.
the loop are each severed from the adjacent binding sites at the
1.2 The values stated in SI units are to be regarded as the
backing surface to provide a specimen of twice the tuft height
standard for all measurements. The inch-pound values are
and the length measured as in 4.1.
provided for information purposes only.
1.3 This standard does not purport to address all of the
5. Significance and Use
safety concerns, if any, associated with its use. It is the
5.1 This test method is useful in quality and cost control
responsibility of the user of this standard to establish appro-
during the manufacture of pile yarn floor covering. Both
priate safety and health practices and determine the applica-
appearance and performance can be affected by changes in the
bility of regulatory limitations prior to use.
tuft height.
2. Referenced Documents 5.1.1 In case of a dispute arising from differences in
reported test results when using this test method for acceptance
2.1 ASTM Standards:
testing of commercial shipments, the purchaser and the sup-
D 123 Terminology Relating to Textile Materials
plier should conduct comparative tests to determine if there is
D 1909 Table of Commercial Moisture Regains for Textile
a statistical bias between their laboratories. Competent statis-
Fibers
tical assistance is recommended for the investigation of bias.
D 5684 Terminology Relating to Pile Floor Coverings
As a minimum, the two parties should take a group of test
E 122 Practice for Choice of Sample Size to Estimate a
specimens that are as homogeneous as possible and are from a
Measure of Quality for a Lot or Process
lot of material of the type in question. The test specimens
3. Terminology should then be randomly assigned in equal numbers to each
laboratory for testing. The average results from the two
3.1 For all terminology related to Pile Floor Coverings,
laboratories should be compared using Student’s t-test for
D13.21, refer to Terminology D 5684.
unpaired data and an acceptable probability level chosen by the
3.1.1 The following terms are relevant to this standard:
two parties before testing is begun. If a bias is found, either its
finished, finished pile yarn floor covering, floor covering, level
cause must be found and corrected or the purchaser and the
pile, loop pile yarn floor covering, pile, pile yarn floor
suppliermustagreetointerpretfuturetest resultsinviewofthe
covering, textile floor covering, tuft height, tuft leg, tufted
known bias.
fabric.
3.2 For all other terminology related to textiles see Termi-
6. Apparatus
nology D 123.
6.1 GroovedSpecimenHolder,havingalengthatleast10 %
4. Summary of Test Method longer than the longest tuft element to be measured.
6.1.1 Specimen Holder, 100-mm (4-in.) long, has been
4.1 For cut pile floor covering, individual tuft leg specimens
found satisfactory for this purpose.
of like character (either cut or loop and of uniform height) are
6.1.2 The grooves shall have a V-shaped cross-section with
cut as closely as possible to the surface of the backing of a pile
a 1.05 rad (60°) angle at the bottom and widths across the top
to accommodate several size yarns as follows:
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This test method is under the jurisdiction ofASTM Committee D13 onTextiles
Yarn Bulk Groove Widths
and is the direct responsibility of Subcommittee D13.21 on Pile Floor Coverings.
Coarse 4.6 mm (0.18 in.)
Current edition approved April 1, 2005. Published May 2005. Originally
Medium 3.3 mm (0.13 in.)
approved in 1995. Last previous edition approved in 2000 as D 5823–00.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
International (www.astm.org) for the latest information.
D5823–05
7.5 Test Spe
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