ASTM D1335-21

Standard Test Method for Tuft Bind of Pile Yarn Floor Coverings

SIGNIFICANCE AND USE
5.1 Test Method D1335 for tuft bind of pile yarn floor coverings is being used for acceptance testing of commercial shipments. Comparative tests as directed in 5.1.1 may be advisable.  
5.1.1 In case of a dispute arising from differences in reported test results using this test method, the purchaser and the supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended from the investigation of bias. As a minimum, the two parties should take a group of test samples that are homogeneous as possible and are from a lot of material of the type in question. The test samples should then be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using appropriate statistical analysis, and a probability level chosen by the two parties before testing begun. If a bias is found, either its cause must be found and corrected or the purchaser and the supplier must agree to interpret future test results with consideration to the known bias.  
5.2 The satisfactory performance of a pile yarn floor covering depends to a considerable extent on the maintenance of its original appearance. In a cut pile yarn floor covering an inadequate tuft bind may result in complete loss of pile in areas exposed to severe wear. In a looped pile yarn floor covering with inadequate tuft bind the pile loops may be pulled out to form unsightly long loops which may be hazardous.
SCOPE
1.1 This test method covers the measurement of force required to pull or break a tuft from a pile floor covering sample.  
1.2 This test method is applicable to both cut and loop pile yarn floor covering.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 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.

General Information

• Status: Published
• Publication Date: 31-Dec-2020
• ICS: 97.150 - Floor coverings
• Technical Committee: D13 - Textiles
• Drafting Committee: D13.21 - Pile Floor Coverings

Standards Content (Sample)

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:D1335 −21
Standard Test Method for
1
Tuft Bind of Pile Yarn Floor Coverings
This standard is issued under the fixed designation D1335; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope 3. Terminology
1.1 This test method covers the measurement of force 3.1 For all terminology related to Pile Floor Coverings,
required to pull or break a tuft from a pile floor covering D13.21, refer to Terminology D5684.
sample. 3.1.1 The following terms are relevant to this standard:
carpet, constant-rate-of-extension, cut pile yarn floor covering,
1.2 This test method is applicable to both cut and loop pile
finished, finished pile yarn floor covering, floor covering, loop
yarn floor covering.
pile yarn floor covering, pile, pile yarn floor covering, textile
1.3 The values stated in inch-pound units are to be regarded
floor covering, tuft, tuft bind, tuft leg, tufted fabric.
as standard. The values given in parentheses are mathematical
3.2 For all other terminology related to textiles see Termi-
conversions to SI units that are provided for information only
nology D123.
and are not considered standard.
1.4 This standard does not purport to address all of the 4. Summary of Method
safety concerns, if any, associated with its use. It is the
4.1 A test sample is mounted on a metal cylindrical sample
responsibility of the user of this standard to establish appro-
holder in a clamping fixture to the base of a tensile testing
priate safety, health, and environmental practices and deter-
machine. A hook (for loops specimen) or a tuft clamp (for cut
mine the applicability of regulatory limitations prior to use.
pilespecimen)areusedtoremoveaspecimenfromthesample.
1.5 This international standard was developed in accor-
The force to pull the specimen free from the test sample is
dance with internationally recognized principles on standard-
measured as the tuft bind.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- 5. Significance and Use
mendations issued by the World Trade Organization Technical
5.1 Test Method D1335 for tuft bind of pile yarn floor
Barriers to Trade (TBT) Committee.
coverings is being used for acceptance testing of commercial
shipments. Comparative tests as directed in 5.1.1 may be
2. Referenced Documents
advisable.
2
2.1 ASTM Standards:
5.1.1 In case of a dispute arising from differences in
D76 Specification for Tensile Testing Machines for Textiles
reported test results using this test method, the purchaser and
D123 Terminology Relating to Textiles
the supplier should conduct comparative tests to determine if
D1776 Practice for Conditioning and Testing Textiles
there is a statistical bias between their laboratories. Competent
D5684 Terminology Relating to Pile Floor Coverings
statistical assistance is recommended from the investigation of
E691 Practice for Conducting an Interlaboratory Study to
bias.As a minimum, the two parties should take a group of test
Determine the Precision of a Test Method
samples that are homogeneous as possible and are from a lot of
E177 Practice for Use of the Terms Precision and Bias in
material of the type in question. The test samples should then
ASTM Test Methods
be randomly assigned in equal numbers to each laboratory for
testing.Theaverageresultsfromthetwolaboratoriesshouldbe
compared using appropriate statistical analysis, and a probabil-
1
ity level chosen by the two parties before testing begun. If a
This test method is under the jurisdiction ofASTM Committee D13 on Textiles
and is the direct responsibility of Subcommittee D13.21 on Pile Floor Coverings.
bias is found, either its cause must be found and corrected or
Current edition approved Jan. 1, 2021. Published January 2021. Originally
the purchaser and the supplier must agree to interpret future
ɛ1
approved in 1954. Last previous edition approved in 2017 as D1335 – 17 . DOI:
test results with consideration to the known bias.
10.1520/D1335-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.2 The satisfactory performance of a pile yarn floor cover-
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
ing depends to a considerable extent on the maintenance of its
Standards volume information, refer to the standard’s Document Summary page on
theASTM website. orig
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: D1335 − 17 D1335 − 21
Standard Test Method for
1
Tuft Bind of Pile Yarn Floor Coverings
This standard is issued under the fixed designation D1335; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1
ε NOTE—In 8.1, the units in parentheses were corrected from (300 6 10 mm/min) to (300 6 12 mm/min) editorially in
March 2018.
1. Scope
1.1 This test method covers the measurement of force required to pull or break a tuft from a pile floor covering sample.
1.2 This test method is applicable to both cut and loop pile yarn floor covering.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.5 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D76 Specification for Tensile Testing Machines for Textiles
D123 Terminology Relating to Textiles
D1776 Practice for Conditioning and Testing Textiles
D5684 Terminology Relating to Pile Floor Coverings
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
3. Terminology
3.1 For all terminology related to Pile Floor Coverings, D13.21, refer to Terminology D5684.
1
This test method 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 July 15, 2017Jan. 1, 2021. Published August 2017January 2021. Originally approved in 1954. Last previous edition approved in 20122017 as
ɛ1
D1335 – 12.D1335 – 17 . DOI: 10.1520/D1335-17E01.10.1520/D1335-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D1335 − 21
3.1.1 The following terms are relevant to this standard: carpet, constant-rate-of-extension, cut pile yarn floor covering, finished,
finished pile yarn floor covering, floor covering, loop pile yarn floor covering, pile, pile yarn floor covering, textile floor covering,
tuft, tuft bind, tuft leg, tufted fabric.
3.2 For all other terminology related to textiles see Terminology D123.
4. Summary of Method
4.1 A test sample is mounted on a metal cylindrical sample holder in a special clamping fixture to the base of a tensile testing
machine. A hook (for loops specimen) or a tuft clamp (for cut pile specimen) are used to remove a specimen from the sample. The
force to pull the specimen free from the test sample is measured as the tuft bind.
5. Significance and Use
5.1 Test Method D1335 for tuft bind of pile yarn floor coverings is being used for acceptance testing of commercial shipments.
Comparative tests as directed in 5.1.1 may be advisable.
5.1.1 In case of a dispute arising from differences in reported test results using this test method, the purchaser and the supplier
should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical
assistance is recommended from the investigation of bias. As a minimum, the two parties should take a group of test samples that
are homogeneous as possible and are from a lot of material of the type in question. The test samples should then be randomly
as
...